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WO2019181311A1 - Système de commande pour véhicule - Google Patents

Système de commande pour véhicule Download PDF

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Publication number
WO2019181311A1
WO2019181311A1 PCT/JP2019/005636 JP2019005636W WO2019181311A1 WO 2019181311 A1 WO2019181311 A1 WO 2019181311A1 JP 2019005636 W JP2019005636 W JP 2019005636W WO 2019181311 A1 WO2019181311 A1 WO 2019181311A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
battery
temperature
refrigerant
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/005636
Other languages
English (en)
Japanese (ja)
Inventor
徹也 石関
武史 東宮
岡本　佳之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Automotive Climate Systems Corp
Original Assignee
Sanden Automotive Climate Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanden Automotive Climate Systems Corp filed Critical Sanden Automotive Climate Systems Corp
Publication of WO2019181311A1 publication Critical patent/WO2019181311A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a vehicle control system that air-conditions a vehicle interior with a vehicle air conditioner fed from a battery and also controls the temperature of the battery.
  • the electric vehicle as described above supplies air to the vehicle air conditioner from the battery and air-conditions the interior of the vehicle, but charging and discharging is difficult in a high temperature state or a very low temperature state.
  • An apparatus including a battery temperature adjusting device that adjusts the temperature of the battery to a predetermined temperature range has been developed (see, for example, Patent Document 2 and Patent Document 3).
  • JP 2014-213765 A Japanese Patent No. 5860360 Japanese Patent No. 5860361
  • the battery when the vehicle starts to run in a cryogenic state, the current that can be output from the battery is low, and thus it is impossible to provide power for both running and air conditioning in the passenger compartment.
  • the battery if the battery is discharged in such a state, the durability of the battery itself is adversely affected. This is the same even when the battery is at a high temperature. If the battery is discharged at a very low temperature or a high temperature when the vehicle is started, the battery is significantly deteriorated.
  • the present invention has been made to solve the conventional technical problem, and for a vehicle capable of preventing battery deterioration when the temperature of the battery is low or high when the vehicle is started.
  • An object is to provide a control system.
  • the vehicle control system controls the air conditioner for the vehicle that adjusts the temperature of the battery while the air is supplied from the battery to adjust the temperature of the vehicle, and the driving of the vehicle and the operation of the air conditioner for the vehicle.
  • the control unit prohibits air conditioning of the vehicle interior by the vehicle air conditioner when the battery temperature is lower than a predetermined allowable lower limit temperature when the vehicle is started. Battery temperature adjustment control at start-up for heating the battery by the vehicle air conditioner is executed.
  • a vehicle control system according to the first aspect, wherein, in the start-up battery temperature adjustment control, the control unit controls the interior of the vehicle interior by the vehicle air conditioner when the battery temperature is higher than a predetermined allowable upper limit temperature. Air conditioning is prohibited, and the battery is cooled by the vehicle air conditioner.
  • a vehicular control system for controlling the air conditioner for a vehicle to adjust the temperature of the battery while the air is supplied from the battery and to adjust the temperature of the battery.
  • the control unit prohibits air conditioning of the vehicle interior by the vehicle air conditioner when the temperature of the battery is higher than a predetermined allowable upper limit temperature when the vehicle is started. Battery temperature adjustment control at start-up for cooling the battery by the vehicle air conditioner is executed.
  • the vehicle control system of the invention of claim 4 is characterized in that, in each of the above-mentioned inventions, the control unit prohibits the running of the vehicle in start-up battery temperature control.
  • the control unit starts the vehicle at a predetermined preset pre-air-conditioning start scheduled time and starts air-conditioning of the vehicle interior by the vehicle air conditioner.
  • the vehicle is started at the scheduled pre-air-conditioning start time, and when starting air-conditioning of the vehicle interior by the vehicle air conditioner, the start-up battery temperature control is executed.
  • a vehicle control system according to each of the first and second aspects of the present invention, wherein when the temperature of the battery rises above the allowable lower limit temperature, the control unit ends the battery temperature adjustment control at the start and Permits air conditioning in the room, or permits air conditioning of the vehicle interior by running of the vehicle and the vehicle air conditioner, maintaining the temperature of the battery above the allowable lower limit temperature by the air conditioner for the vehicle, and / or When the temperature of the battery falls below the allowable upper limit temperature, the battery temperature adjustment control at the start is finished and the air conditioning in the vehicle interior is permitted by the vehicle air conditioner, or the vehicle running and the vehicle by the vehicle air conditioner are permitted. While permitting air conditioning in the room, the temperature of the battery is maintained at an allowable upper limit temperature or less by the vehicle air conditioner.
  • the vehicle control system includes a compressor that compresses the refrigerant, a radiator that radiates the refrigerant and heats the air supplied to the vehicle interior, and a refrigerant.
  • a heat absorber that cools the air supplied to the passenger compartment and cools the air supplied to the passenger compartment; an outdoor heat exchanger that is provided outside the passenger compartment to absorb or dissipate the refrigerant; and a battery that circulates the heat medium to control the temperature of the battery.
  • the battery temperature adjusting device includes a refrigerant-heat medium heat exchanger that exchanges heat between the refrigerant and the heat medium, and a heating device that heats the heat medium. The operation of the vehicle air conditioner or the running of the vehicle and the operation of the vehicle air conditioner are controlled using the temperature of itself or the temperature of the heat medium as the temperature of the battery.
  • the vehicle air conditioner that supplies power from the battery to air-condition the vehicle interior and adjusts the temperature of the battery
  • the controller that controls the running of the vehicle and the operation of the vehicle air conditioner.
  • the vehicle air conditioning device prohibits air conditioning of the vehicle interior and Since the battery temperature adjustment control at the time of starting that heats the battery by the air conditioner is executed, the temperature of the battery is low at the time of starting the vehicle, and under the situation where the power necessary for air conditioning and traveling in the vehicle interior cannot be provided, The battery can be prevented from deteriorating without affecting the running, and the durability of the battery can be improved.
  • the controller heats the battery by the vehicle air conditioner, the temperature of the battery can be raised at an early stage. Thereby, the air conditioning in the passenger compartment can be started early.
  • the control unit air-conditions the vehicle interior by the vehicle air conditioner. And the battery is cooled by the vehicle air conditioner, so that even when the battery temperature is high at the start of the vehicle, the battery is prevented from deteriorating without affecting the running, and the durability of the battery is improved. It will be possible to improve.
  • control unit cools the battery by the vehicle air conditioner, the temperature of the battery can be lowered at an early stage. As a result, even in such a case, air conditioning in the passenger compartment can be started early.
  • the battery can be further deteriorated if the controller prohibits the traveling of the vehicle in the start-up battery temperature control as in the fourth aspect of the invention. While preventing the battery temperature, the temperature of the battery can be raised and / or lowered at an early stage so that the running and the air conditioning of the passenger compartment can be made possible at an early stage.
  • control unit has a pre-air-conditioning function for starting the vehicle at a predetermined preset pre-air-conditioning start scheduled time and starting air-conditioning of the vehicle interior by the vehicle air conditioner as in the invention of claim 5 If the controller starts the vehicle at the scheduled pre-air conditioning start time and starts the air conditioning of the vehicle interior by the vehicle air conditioner, the vehicle interior can be controlled by executing the battery temperature adjustment control at the time of startup. Even when pre-air-conditioning is performed, the battery can be prevented from deteriorating.
  • the control unit terminates the start-up battery temperature control and permits the vehicle air conditioning by the vehicle air conditioner, Alternatively, the vehicle is allowed to run and the vehicle air conditioning is performed by the vehicle air conditioner, the battery air conditioner is used to maintain the battery temperature above the allowable lower limit temperature, and / or the battery temperature is the allowable upper limit temperature.
  • the battery temperature control at start-up is terminated and air conditioning of the vehicle interior by the vehicle air conditioner is permitted, or air conditioning of the vehicle interior by the vehicle running and vehicle air conditioner is permitted.
  • a compressor that compresses the refrigerant
  • a radiator that heats the air that dissipates the refrigerant and supplies the air to the vehicle interior
  • a heat absorber that absorbs heat into the vehicle interior.
  • a heat absorber that cools the air to be supplied
  • an outdoor heat exchanger that is provided outside the passenger compartment to absorb or dissipate the refrigerant
  • a battery temperature adjusting device that circulates a heat medium in the battery and adjusts the temperature of the battery.
  • the battery temperature adjusting device includes a refrigerant-heat medium heat exchanger that exchanges heat between the refrigerant and the heat medium, and a heating device that heats the heat medium, and the control unit controls the temperature or heat of the battery itself.
  • FIG. 1 It is a block diagram of one Example of the vehicle air conditioning apparatus of the vehicle control system to which this invention is applied. It is a block diagram of the control part which made the air conditioning controller of the vehicle control system of FIG. 1 the main. It is a figure explaining the heating operation by the air-conditioning controller of FIG. It is a figure explaining the dehumidification heating operation by the air-conditioning controller of FIG. It is a figure explaining the internal cycle driving
  • FIG. 1 shows a block diagram of a vehicle air conditioner 1 of one embodiment constituting a vehicle control system VC to which the present invention is applied.
  • a vehicle according to an embodiment to which the vehicle control system VC of the present invention is applied is an electric vehicle (EV) in which an engine (internal combustion engine) is not mounted, and a battery 55 (for example, a lithium battery) is mounted on the vehicle.
  • EV electric vehicle
  • Driving is performed by supplying electric power charged in the battery 55 from an external power source such as a quick charger or a household commercial power source (normal charging) to the electric motor 65 for traveling.
  • the vehicle air conditioner 1 mounted on the vehicle is also driven by being fed from the battery 55.
  • the vehicle air conditioner 1 performs heating operation by heat pump operation using the refrigerant circuit R in an electric vehicle that cannot be heated by engine waste heat, and further performs dehumidification heating operation, internal cycle operation, dehumidification cooling operation, cooling
  • the vehicle interior is air-conditioned by selectively executing each air-conditioning operation.
  • the present invention is effective not only for electric vehicles but also for so-called hybrid vehicles that use an engine and an electric motor for traveling.
  • the vehicle air conditioner 1 performs air conditioning (heating, cooling, dehumidification, and ventilation) in a vehicle interior of an electric vehicle, and includes an electric compressor 2 that compresses refrigerant and vehicle interior air. Is provided in the air flow passage 3 of the HVAC unit 10 through which air is circulated, and the high-temperature and high-pressure refrigerant discharged from the compressor 2 flows in through the refrigerant pipe 13G, and dissipates the refrigerant into the vehicle compartment. And an outdoor expansion valve 6 comprising an electric valve that decompresses and expands the refrigerant during heating, and functions as a radiator that radiates the refrigerant during cooling and functions as an evaporator that absorbs the refrigerant during heating.
  • Vessel 9 and Aki Suit of Lights 12 or the like are sequentially connected by a refrigerant pipe 13, the refrigerant circuit R is formed.
  • the outdoor expansion valve 6 and the indoor expansion valve 8 allow the refrigerant to expand under reduced pressure and can be fully opened and fully closed.
  • the outdoor heat exchanger 7 is provided with an outdoor blower 15.
  • the outdoor blower 15 exchanges heat between the outside air and the refrigerant by forcibly passing outside air through the outdoor heat exchanger 7, so that the outdoor air blower 15 can also be used outdoors even when the vehicle is stopped (that is, the vehicle speed is 0 km / h). It is comprised so that external air may be ventilated by the heat exchanger 7.
  • FIG. Reference numeral 23 in the figure denotes a shutter called a grill shutter. When the shutter 23 is closed, the traveling wind is prevented from flowing into the outdoor heat exchanger 7.
  • the refrigerant pipe 13A connected to the refrigerant outlet side of the outdoor heat exchanger 7 is connected to the refrigerant pipe 13B via the check valve 18.
  • the check valve 18 has a forward direction on the refrigerant pipe 13B side, and the refrigerant pipe 13B is connected to the indoor expansion valve 8.
  • the refrigerant pipe 13A exiting from the outdoor heat exchanger 7 is branched, and this branched refrigerant pipe 13D is a refrigerant pipe 13C located on the outlet side of the heat absorber 9 via an electromagnetic valve 21 opened during heating. It is connected in communication.
  • the refrigerant pipe 13 ⁇ / b> C is connected to the accumulator 12, and the accumulator 12 is connected to the refrigerant suction side of the compressor 2.
  • the refrigerant pipe 13E on the outlet side of the radiator 4 is branched into a refrigerant pipe 13J and a refrigerant pipe 13F before the outdoor expansion valve 6 (the refrigerant upstream side), and one of the branched refrigerant pipes 13J is the outdoor expansion valve 6.
  • the other branched refrigerant pipe 13 ⁇ / b> F is a refrigerant pipe 13 ⁇ / b> A and a refrigerant pipe located on the refrigerant downstream side of the check valve 18 and on the refrigerant upstream side of the indoor expansion valve 8 via an electromagnetic valve 22 opened during dehumidification. 13B is connected in communication with the connecting portion.
  • the refrigerant pipe 13F is connected in parallel to the series circuit of the outdoor expansion valve 6, the outdoor heat exchanger 7 and the check valve 18, and the outdoor expansion valve 6, the outdoor heat exchanger 7 and the check valve are connected.
  • the circuit bypasses the circuit 18.
  • the air flow passage 3 on the air upstream side of the heat absorber 9 is formed with each of an outside air inlet and an inside air inlet (represented by the inlet 25 in FIG. 1). 25 is provided with a suction switching damper 26 for switching the air introduced into the air flow passage 3 between the inside air (inside air circulation) which is air inside the vehicle compartment and the outside air (outside air introduction) which is outside the vehicle compartment. Furthermore, an indoor blower (blower fan) 27 for supplying the introduced inside air or outside air to the air flow passage 3 is provided on the air downstream side of the suction switching damper 26.
  • the air (inside air and outside air) in the air flow passage 3 after flowing into the air flow passage 3 and passing through the heat absorber 9 is radiated into the air flow passage 3 on the air upstream side of the radiator 4.
  • An air mix damper 28 that adjusts the rate of ventilation through the vessel 4 is provided.
  • FOOT (foot), VENT (vent), and DEF (def) outlets are formed in the air flow passage 3 on the air downstream side of the radiator 4.
  • the air outlet 29 is provided with an air outlet switching damper 31 that performs switching control of air blowing from the air outlets.
  • the vehicle air conditioner 1 includes a battery temperature adjusting device 61 for adjusting the temperature of the battery 55 by circulating a heat medium through the battery 55.
  • the battery temperature adjustment device 61 of the embodiment includes a circulation pump 62 as a circulation device for circulating a heat medium through the battery 55, a heat medium heater 66 as a heating device, and a refrigerant-heat medium heat exchanger 64. These and the battery 55 are annularly connected by a heat medium pipe 68.
  • the heat medium heater 66 is connected to the discharge side of the circulation pump 62, the inlet of the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 is connected to the outlet of the heat medium heater 66, The inlet of the battery 55 is connected to the outlet of the heat medium flow path 64 ⁇ / b> A, and the outlet of the battery 55 is connected to the suction side of the circulation pump 62.
  • the heat medium used in the battery temperature adjusting device 61 for example, water, a refrigerant such as HFO-1234yf, a liquid such as a coolant, or a gas such as air can be employed.
  • water is used as the heat medium.
  • the heat medium heater 66 is composed of an electric heater such as a PTC heater. Furthermore, it is assumed that a jacket structure is provided around the battery 55 so that the heat medium can circulate with the battery 55 in a heat exchange relationship.
  • the heat medium discharged from the circulation pump 62 reaches the heat medium heater 66. If the heat medium heater 66 generates heat, it is heated there, and then It flows into the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64. The heat medium exiting the heat medium flow path 64 A of the refrigerant-heat medium heat exchanger 64 reaches the battery 55. The heat medium exchanges heat therewith with the battery 55 and is then circulated through the heat medium pipe 68 by being sucked into the circulation pump 62.
  • the outlet of the refrigerant pipe 13F of the refrigerant circuit R that is, the connecting portion between the refrigerant pipe 13F, the refrigerant pipe 13A, and the refrigerant pipe 13B is on the refrigerant downstream side (forward direction side) of the check valve 18,
  • One end of a branch pipe 72 serving as a branch circuit is connected to the refrigerant upstream side of the expansion valve 8.
  • the branch pipe 72 is provided with an auxiliary expansion valve 73 composed of an electric valve.
  • the auxiliary expansion valve 73 decompresses and expands the refrigerant flowing into a refrigerant flow path 64B (described later) of the refrigerant-heat medium heat exchanger 64 and can be fully closed.
  • the other end of the branch pipe 72 is connected to the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64, and one end of the refrigerant pipe 74 is connected to the outlet of the refrigerant flow path 64B.
  • the other end is connected to the refrigerant pipe 13C in front of the accumulator 12 (the refrigerant upstream side).
  • the auxiliary expansion valve 73 and the like also constitute part of the refrigerant circuit R and at the same time constitute part of the battery temperature adjusting device 61.
  • the refrigerant (a part or all of the refrigerant) discharged from the refrigerant pipe 13F and the outdoor heat exchanger 7 is decompressed by the auxiliary expansion valve 73, and then the refrigerant-heat medium heat exchanger. 64 flows into the refrigerant flow path 64B and evaporates there.
  • the refrigerant absorbs heat from the heat medium flowing through the heat medium flow path 64A in the process of flowing through the refrigerant flow path 64B, and then is sucked into the compressor 2 through the accumulator 12.
  • FIG. 2 30 is a control unit of the vehicle control system VC of the present invention, and this control unit 30 mainly controls the air conditioning controller 32 that controls the vehicle air conditioner 1 and the overall control of the vehicle.
  • a vehicle controller 35 (ECU) and a battery controller 40 that controls charging / discharging of the battery 55 are provided, which are connected via a vehicle communication bus 45 to transmit and receive information.
  • Each of the air conditioning controller 32, the vehicle controller 35 (ECU), and the battery controller 40 is constituted by a microcomputer as an example of a computer including a processor.
  • the input of the air conditioning controller 32 detects an outside air temperature sensor 33 for detecting the outside air temperature (Tam) of the vehicle, an outside air humidity sensor 34 for detecting the outside air humidity, and a temperature of air sucked into the air flow passage 3 from the suction port 25.
  • the HVAC suction temperature sensor 36 the inside air temperature sensor 37 that detects the temperature of the air (inside air) in the vehicle interior, the inside air humidity sensor 38 that detects the humidity of the air in the vehicle interior, and the carbon dioxide concentration in the vehicle interior.
  • a heat absorber temperature sensor 48 that detects the refrigerant pressure of the heat absorber 9 (the refrigerant pressure in the heat absorber 9 or the pressure of the refrigerant immediately after leaving the heat absorber 9), and the amount of solar radiation into the passenger compartment
  • a photosensor-type solar radiation sensor 51 for detecting the vehicle
  • a vehicle speed sensor 52 for detecting the moving speed (vehicle speed) of the vehicle
  • an air conditioning operation unit 53 for setting switching of the set temperature and air conditioning operation
  • the temperature of the outdoor heat exchanger 7 (from the outdoor heat exchanger 7 The temperature of the refrigerant immediately after, or the temperature of the outdoor heat exchanger 7 itself: the outdoor heat exchanger temperature TXO
  • the outdoor heat exchanger temperature TXO is the outdoor heat exchanger 7
  • the outdoor heat exchanger temperature sensor 54 that detects the evaporation temperature of the refrigerant in the refrigerant and the refrigerant pressure of the outdoor heat exchanger 7 (in the outdoor heat exchanger 7 or
  • the input of the air conditioning controller 32 further includes the temperature of the battery 55 (the temperature of the battery 55 itself, the temperature of the heat medium exiting the battery 55, or the temperature of the heat medium entering the battery 55: battery temperature Tb).
  • a battery temperature sensor 76 to detect, a heat medium heater temperature sensor 77 to detect the temperature of the heat medium heater 66 (the temperature of the heat medium heater 66 itself, the temperature of the heat medium that has exited the heat medium heater 66),
  • a first outlet temperature sensor 78 that detects the temperature of the heat medium that has exited the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64, and a second outlet temperature that detects the temperature of the refrigerant that has exited the refrigerant flow path 64B.
  • Each output of the sensor 79 is also connected.
  • the output of the air conditioning controller 32 includes the compressor 2, the outdoor fan 15, the indoor fan (blower fan) 27, the suction switching damper 26, the air mix damper 28, the outlet switching damper 31, the outdoor
  • the expansion valve 6, the indoor expansion valve 8, the electromagnetic valve 22 (dehumidification), the electromagnetic valve 21 (heating), the shutter 23, the circulation pump 62, the heat medium heater 66, and the auxiliary expansion valve 73 are connected.
  • a first switch (contact point) 81 and a second switch (contact point) 82 which will be described later, are also connected to the output of the air conditioning controller 32, and the switches 81 and 82 are controlled to be opened and closed by the air conditioning controller 32.
  • the air conditioning controller 32 controls these based on the output of each sensor, the setting input in the air conditioning operation unit 53, and information from the vehicle controller 35 and the battery controller 40.
  • the vehicle controller 35 governs overall control including traveling of the vehicle (electric vehicle in the embodiment), and an electric motor 65 for traveling is connected to the output of the vehicle controller 35.
  • the charging plug 60 connected to an external power source such as a quick charger
  • the contact information is transmitted to the vehicle controller 35.
  • the vehicle controller 35 detects that the plug 60 is connected to the external power source from the contact information, and transmits information to that effect to the air conditioning controller 32 and the battery controller 40.
  • the battery controller 40 is connected to the plug 60 described above, which is connected to an external power supply during charging.
  • the battery controller 40 controls charging of the battery 55 from the external power supply and discharging from the battery 55.
  • the battery controller 40 according to the embodiment controls charging / discharging of the battery 55 based on information transmitted from the vehicle controller 35 and the air conditioning controller 32, and provides information on the charge amount (remaining charge amount) remaining in the battery 55 to the vehicle controller 35. Or to the air conditioning controller 32.
  • the electric wiring 83 from the battery 55 is electrically connected to the electric device on the refrigerant circuit R side including the compressor 2 via the first switch 81 described above, and the first switch 81 is closed.
  • an electrical wiring 84 is further branched from the electrical wiring 83 between the first switch 81 and the battery 55, and this electrical wiring 84 is connected to the battery temperature including the heat medium heater 66 via the second switch 82 described above.
  • the adjustment device 61 is electrically connected to an electric device.
  • the second switch 82 is closed so that power can be supplied from the battery 55 to the heat medium heater 66 and the like (FIG. 1).
  • each operation / energization control of each electric device such as the compressor 2 and the heat medium heater 66 is individually performed by the air conditioning controller 32 of the control unit 30 or the like.
  • the air conditioning controller 32 switches between the air conditioning operation of the heating operation, the dehumidifying heating operation, the internal cycle operation, the dehumidifying and cooling operation, and the cooling operation, and sets the temperature of the battery 55 within a predetermined appropriate temperature range. adjust.
  • each air conditioning operation of the refrigerant circuit R of the vehicle air conditioner 1 during operation of the vehicle will be described.
  • FIG. 3 shows a refrigerant flow (solid arrow) in the refrigerant circuit R in the heating operation.
  • the air conditioning controller 32 closes the first switch 81 and opens the second switch 82.
  • power can be supplied from the battery 55 to the electrical equipment of the refrigerant circuit R including the compressor 2 of the vehicle air conditioner 1 via the electrical wiring 83 (the same applies to FIGS. 4 to 6).
  • the air conditioning controller 32 When the heating operation is selected by the air conditioning controller 32 (auto mode) or by the manual operation (manual mode) to the air conditioning operation unit 53, the air conditioning controller 32 opens the electromagnetic valve 21 (for heating), and the indoor expansion valve 8 is fully closed. Further, the electromagnetic valve 22 (for dehumidification) is closed. The shutter 23 is opened.
  • the compressor 2 and the blowers 15 and 27 are operated, and the air mix damper 28 is in a state of adjusting the ratio of the air blown from the indoor blower 27 to the radiator 4.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is passed through the radiator 4, the air in the air flow passage 3 is heated by the high-temperature refrigerant in the radiator 4, while the refrigerant in the radiator 4 heats the air. Deprived, cooled, and condensed into liquid.
  • the refrigerant liquefied in the radiator 4 exits the radiator 4 and then reaches the outdoor expansion valve 6 through the refrigerant pipes 13E and 13J.
  • the refrigerant flowing into the outdoor expansion valve 6 is decompressed there and then flows into the outdoor heat exchanger 7.
  • the refrigerant flowing into the outdoor heat exchanger 7 evaporates, and pumps up heat from the outside air that is ventilated by traveling or by the outdoor blower 15 (heat absorption). That is, the refrigerant circuit R becomes a heat pump.
  • the low-temperature refrigerant exiting the outdoor heat exchanger 7 enters the accumulator 12 through the refrigerant pipe 13C through the refrigerant pipe 13A, the refrigerant pipe 13D, and the electromagnetic valve 21, and is separated into gas and liquid there. Repeated circulation inhaled. Since the air heated by the radiator 4 is blown out from the air outlet 29, the vehicle interior is thereby heated.
  • the air conditioning controller 32 determines a target radiator pressure PCO (a target value of the pressure PCI of the radiator 4) from a target heater temperature TCO (a target value of the air temperature on the leeward side of the radiator 4) calculated from a target outlet temperature TAO described later. And the rotational speed of the compressor 2 is controlled based on the target radiator pressure PCO and the refrigerant pressure of the radiator 4 (radiator pressure PCI; high pressure of the refrigerant circuit R) detected by the radiator pressure sensor 47.
  • a target radiator pressure PCO a target value of the pressure PCI of the radiator 4
  • TCO a target value of the air temperature on the leeward side of the radiator 4
  • FIG. 4 shows the refrigerant flow (solid arrow) in the refrigerant circuit R in the dehumidifying heating operation.
  • the air conditioning controller 32 opens the electromagnetic valve 22 in the heating operation state and opens the indoor expansion valve 8 so that the refrigerant is decompressed and expanded. Further, the shutter 23 is opened. Thereby, a part of the condensed refrigerant flowing through the refrigerant pipe 13E through the radiator 4 is divided, and the divided refrigerant flows into the refrigerant pipe 13F through the electromagnetic valve 22, and flows from the refrigerant pipe 13B to the indoor expansion valve 8. The remaining refrigerant flows into the outdoor expansion valve 6. That is, a part of the divided refrigerant is decompressed by the indoor expansion valve 8 and then flows into the heat absorber 9 to evaporate.
  • the air conditioning controller 32 controls the valve opening degree of the indoor expansion valve 8 so that the superheat degree (SH) of the refrigerant at the outlet of the heat absorber 9 is maintained at a predetermined value.
  • SH superheat degree
  • the refrigerant evaporated in the heat absorber 9 flows out to the refrigerant pipe 13C and merges with the refrigerant from the refrigerant pipe 13D (refrigerant from the outdoor heat exchanger 7), and then repeats circulation sucked into the compressor 2 through the accumulator 12. Since the air dehumidified by the heat absorber 9 is reheated in the process of passing through the radiator 4, dehumidifying heating in the passenger compartment is thereby performed.
  • the air conditioning controller 32 controls the rotational speed of the compressor 2 based on the target radiator pressure PCO calculated from the target heater temperature TCO and the radiator pressure PCI (high pressure of the refrigerant circuit R) detected by the radiator pressure sensor 47.
  • the valve opening degree of the outdoor expansion valve 6 is controlled based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48.
  • FIG. 5 shows a refrigerant flow (solid arrow) in the refrigerant circuit R in the internal cycle operation.
  • the air conditioning controller 32 fully closes the outdoor expansion valve 6 in the dehumidifying and heating operation state (fully closed position).
  • the solenoid valve 21 is kept open, and the refrigerant outlet of the outdoor heat exchanger 7 is communicated with the refrigerant suction side of the compressor 2.
  • this internal cycle operation is a state in which the outdoor expansion valve 6 is fully closed by the control of the outdoor expansion valve 6 in the dehumidifying and heating operation
  • this internal cycle operation can also be regarded as a part of the dehumidifying and heating operation ( The shutter 23 is open).
  • the condensed refrigerant flowing through the refrigerant pipe 13 ⁇ / b> E via the radiator 4 passes through the electromagnetic valve 22 and becomes refrigerant. All flows into the pipe 13F.
  • the refrigerant flowing through the refrigerant pipe 13F reaches the indoor expansion valve 8 through the refrigerant pipe 13B. After the refrigerant is depressurized by the indoor expansion valve 8, it flows into the heat absorber 9 and evaporates. Since the moisture in the air blown out from the indoor blower 27 by the heat absorption action at this time condenses and adheres to the heat absorber 9, the air is cooled and dehumidified.
  • the refrigerant evaporated in the heat absorber 9 flows through the refrigerant pipe 13 ⁇ / b> C and repeats circulation that is sucked into the compressor 2 through the accumulator 12. Since the air dehumidified by the heat absorber 9 is reheated in the process of passing through the radiator 4, dehumidifying heating in the passenger compartment is thereby performed. Since the refrigerant is circulated between the radiator 4 (radiation) and the heat absorber 9 (heat absorption) in the passage 3, heat from the outside air is not pumped up, and heating for the consumed power of the compressor 2 is performed. Ability is demonstrated. Since the entire amount of the refrigerant flows through the heat absorber 9 that exhibits the dehumidifying action, the dehumidifying capacity is higher than the dehumidifying and heating operation, but the heating capacity is lowered.
  • the outdoor expansion valve 6 is closed, the electromagnetic valve 21 is open, and the refrigerant outlet of the outdoor heat exchanger 7 communicates with the refrigerant suction side of the compressor 2, so that the liquid in the outdoor heat exchanger 7 is
  • the refrigerant flows out through the refrigerant pipe 13D and the electromagnetic valve 21 to the refrigerant pipe 13C, is collected by the accumulator 12, and the outdoor heat exchanger 7 is in a gas refrigerant state.
  • the air conditioning controller 32 controls the rotation speed of the compressor 2 based on the temperature of the heat absorber 9 or the above-described radiator pressure PCI (high pressure of the refrigerant circuit R). At this time, the air conditioning controller 32 controls the compressor 2 by selecting the lower one of the compressor target rotational speeds obtained from either calculation, depending on the temperature of the heat absorber 9 or the radiator pressure PCI.
  • FIG. 6 shows a refrigerant flow (solid arrow) in the refrigerant circuit R in the dehumidifying and cooling operation.
  • the air conditioning controller 32 opens the indoor expansion valve 8 to make the refrigerant decompress and expand, and closes the electromagnetic valve 21 and the electromagnetic valve 22.
  • the compressor 2 and each air blower 15 and 27 are drive
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4. Since the air in the air flow passage 3 is passed through the radiator 4, the air in the air flow passage 3 is heated by the high-temperature refrigerant in the radiator 4, while the refrigerant in the radiator 4 heats the air. It is deprived and cooled, and condensates.
  • the refrigerant that has exited the radiator 4 reaches the outdoor expansion valve 6 through the refrigerant pipe 13E, and flows into the outdoor heat exchanger 7 through the outdoor expansion valve 6 that is controlled to open.
  • the refrigerant flowing into the outdoor heat exchanger 7 is cooled and condensed by running there or by the outside air ventilated by the outdoor blower 15.
  • the refrigerant exiting the outdoor heat exchanger 7 enters the refrigerant pipe 13B through the refrigerant pipe 13A and the check valve 18, and reaches the indoor expansion valve 8.
  • the refrigerant evaporated in the heat absorber 9 reaches the accumulator 12 through the refrigerant pipe 13C, and repeats circulation sucked into the compressor 2 through the refrigerant pipe 13C. Air that has been cooled and dehumidified by the heat absorber 9 is reheated in the process of passing through the radiator 4 (reheating: lower heat dissipation capacity than during heating), so that dehumidification and cooling of the passenger compartment is performed. become.
  • the air conditioning controller 32 sets the heat absorber temperature Te to the target heat absorber temperature TEO based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48 and the target heat absorber temperature TEO that is the target value.
  • the target radiator pressure PCO radio pressure
  • the necessary reheat amount by the radiator 4 is obtained by controlling the valve opening degree of the outdoor expansion valve 6 so that the radiator pressure PCI becomes the target radiator pressure PCO based on the PCI target value).
  • Cooling operation Next, the cooling operation will be described.
  • the flow of the refrigerant circuit R is the same as in the dehumidifying and cooling operation of FIG.
  • the air conditioning controller 32 fully opens the valve opening degree of the outdoor expansion valve 6 in the dehumidifying and cooling operation state.
  • the air mix damper 28 is in a state of adjusting the ratio of air passing through the radiator 4. Further, the shutter 23 is opened.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 flows into the radiator 4.
  • the air in the air flow passage 3 is ventilated to the radiator 4, the ratio is small (because of only reheating during cooling), so this almost passes through, and the refrigerant exiting the radiator 4 is The refrigerant reaches the outdoor expansion valve 6 through the refrigerant pipe 13E.
  • the outdoor expansion valve 6 since the outdoor expansion valve 6 is fully opened, the refrigerant passes through the refrigerant expansion pipe 13J through the outdoor expansion valve 6 and flows into the outdoor heat exchanger 7, where it is ventilated by running or by the outdoor blower 15. It is air-cooled by the outside air and is condensed and liquefied.
  • the refrigerant exiting the outdoor heat exchanger 7 enters the refrigerant pipe 13B through the refrigerant pipe 13A and the check valve 18, and reaches the indoor expansion valve 8. After the refrigerant is depressurized by the indoor expansion valve 8, it flows into the heat absorber 9 and evaporates. Moisture in the air blown out from the indoor blower 27 by the heat absorption action at this time condenses and adheres to the heat absorber 9, and the air is cooled.
  • the refrigerant evaporated in the heat absorber 9 reaches the accumulator 12 through the refrigerant pipe 13C, and repeats circulation sucked into the compressor 2 through the refrigerant pipe 13C.
  • the air cooled and dehumidified by the heat absorber 9 is blown out from the outlet 29 into the vehicle interior, thereby cooling the vehicle interior.
  • the air conditioning controller 32 controls the rotational speed of the compressor 2 based on the temperature of the heat absorber 9 (heat absorber temperature Te) detected by the heat absorber temperature sensor 48.
  • the air conditioning controller 32 calculates the target blowout temperature TAO described above from the following formula (I).
  • This target blowing temperature TAO is a target value of the temperature of the air blown out from the blowout port 29 into the vehicle interior.
  • TAO (Tset ⁇ Tin) ⁇ K + Tbal (f (Tset, SUN, Tam)) .. (I)
  • Tset is the set temperature in the passenger compartment set by the air conditioning operation unit 53
  • Tin is the temperature of the passenger compartment air detected by the inside air temperature sensor 37
  • K is a coefficient
  • Tbal is the set temperature Tset
  • the solar radiation sensor 51 detects This is a balance value calculated from the amount of solar radiation SUN to be performed and the outside air temperature Tam detected by the outside air temperature sensor 33.
  • this target blowing temperature TAO is so high that the outside temperature Tam is low, and it falls as the outside temperature Tam rises.
  • the air conditioning controller 32 selects one of the above air conditioning operations based on the outside air temperature Tam detected by the outside air temperature sensor 33 and the target outlet temperature TAO at the time of activation. In addition, after the activation, the air conditioning operations are selected and switched in accordance with changes in the environment and setting conditions such as the outside air temperature Tam and the target blowing temperature TAO.
  • Temperature Adjustment of Battery 55 Next, temperature adjustment control of the battery 55 by the air conditioning controller 32 will be described with reference to FIGS.
  • the temperature of the battery 55 changes depending on the outside air temperature, and the temperature also changes due to self-heating.
  • the outside air temperature is a high temperature environment or a very low temperature environment
  • the temperature of the battery 55 becomes extremely high or extremely low, and charging / discharging becomes difficult.
  • the air conditioning controller 32 of the vehicle air conditioner 1 performs the air conditioning operation as described above, and the battery temperature adjusting device 61 controls the temperature of the battery 55 within a predetermined appropriate temperature range (within the use temperature range). Adjust to.
  • the appropriate temperature range of the battery 55 is generally known, but in this application, it is 0 ° C. or higher and + 40 ° C. or lower.
  • 0 ° C. which is the lower limit value of the appropriate temperature range
  • + 40 ° C. is set as a predetermined allowable upper limit temperature TH.
  • a target battery temperature TBO for example, + 15 ° C.
  • FIG. 7 shows the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in the heating / battery temperature control mode.
  • the air conditioning controller 32 closes the first switch 81 and the second switch 82.
  • electrical wiring 83 and 84 are connected from the battery 55 to the electrical equipment of the refrigerant circuit R including the compressor 2 of the vehicle air conditioner 1 and the electrical equipment of the battery temperature adjustment device 61 including the heat medium heater 66.
  • the power can be supplied via the power supply (the same applies to FIGS. 7 to 11).
  • the air conditioning controller 32 further opens the electromagnetic valve 22 and opens the auxiliary expansion valve 73 to control the valve opening degree in the heating operation state of the refrigerant circuit R shown in FIG. And Then, the circulation pump 62 of the battery temperature adjusting device 61 is operated. Thereby, a part of the refrigerant discharged from the radiator 4 is diverted on the refrigerant upstream side of the outdoor expansion valve 6 and reaches the refrigerant upstream side of the indoor expansion valve 8 through the refrigerant pipe 13F.
  • the refrigerant then enters the branch pipe 72 and is depressurized by the auxiliary expansion valve 73, and then flows into the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64 via the branch pipe 72 and evaporates. At this time, an endothermic effect is exhibited.
  • the refrigerant evaporated in the refrigerant flow path 64B is repeatedly circulated through the refrigerant pipe 74, the refrigerant pipe 13C, and the accumulator 12 and then sucked into the compressor 2 (indicated by solid arrows in FIG. 7).
  • the heat medium discharged from the circulation pump 62 reaches the heat medium heater 66, where it is heated (when the heat medium heater 66 generates heat), and then in the heat medium pipe 68, the refrigerant-heat medium heat
  • the heat medium flow path 64A of the exchanger 64 is reached, where heat is absorbed by the refrigerant evaporated in the refrigerant flow path 64B, and the heat medium is cooled.
  • the heat medium heated by the heat medium heater 66 and / or cooled by the endothermic action of the refrigerant leaves the refrigerant-heat medium heat exchanger 64 and reaches the battery 55, and after exchanging heat with the battery 55, The circulation sucked into the circulation pump 62 is repeated (indicated by broken line arrows in FIG. 7).
  • the air conditioning controller 32 constantly flows the refrigerant through the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64 and constantly cools the heat medium, and based on the battery temperature Tb detected by the battery temperature sensor 76 and the target battery temperature TBO.
  • the battery temperature Tb becomes the target battery temperature TBO (in this case, the heating / battery temperature adjustment mode is always set instead of the heating operation in practice). Or switching between heating operation and heating / battery temperature control mode).
  • the heating operation is shifted to the heating / battery temperature control mode, the auxiliary expansion valve 73 is controlled to lower the battery temperature Tb, and the battery temperature Even when Tb ⁇ target battery temperature TBO- ⁇ , the mode is changed from the heating operation to the heating / battery temperature control mode, and the heat medium heater 66 generates heat to raise the battery temperature Tb, so that the battery temperature Tb becomes the target.
  • the battery temperature is set to TBO.
  • the air conditioning controller 32 adjusts the temperature Tb of the battery 55 to the target battery temperature TBO within the appropriate temperature range.
  • FIG. 8 shows the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in the cooling / battery temperature control mode.
  • the air conditioning controller 32 opens the auxiliary expansion valve 73 to control the valve opening degree in the state of the refrigerant circuit R in the cooling operation of FIG.
  • the pump 62 is also operated so that the refrigerant and the heat medium are exchanged in the refrigerant-heat medium heat exchanger 64.
  • the high-temperature refrigerant discharged from the compressor 2 flows into the outdoor heat exchanger 7 through the radiator 4, where it exchanges heat with the outside air and running air that is ventilated by the outdoor blower 15 to dissipate and condense.
  • a part of the refrigerant condensed in the outdoor heat exchanger 7 reaches the indoor expansion valve 8 and is decompressed there, and then flows into the heat absorber 9 and evaporates. Since the air in the air flow passage 3 is cooled by the heat absorption action at this time, the passenger compartment is cooled.
  • the remainder of the refrigerant condensed in the outdoor heat exchanger 7 is diverted to the branch pipe 72 and decompressed by the auxiliary expansion valve 73, and then evaporated in the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64. Since the refrigerant absorbs heat from the heat medium circulating in the battery temperature adjusting device 61, the battery 55 is cooled in the same manner as described above.
  • the refrigerant from the heat absorber 9 is sucked into the compressor 2 through the refrigerant pipe 13C and the accumulator 12, and the refrigerant from the refrigerant-heat medium heat exchanger 64 is also passed from the refrigerant pipe 74 through the accumulator 12 to the compressor 2. Will be inhaled.
  • the air-conditioning controller 32 executes the cooling / battery temperature adjustment mode instead of the cooling operation, or the cooling operation and the cooling / battery, as in the above-described heating / battery temperature adjustment mode.
  • the temperature Tb of the battery 55 is changed to the target battery temperature TBO within the appropriate temperature range by switching the temperature control mode or by switching to the cooling / battery temperature control mode and controlling the auxiliary expansion valve 73 and the heat medium heater 66. adjust.
  • the air conditioning controller 32 executes the dehumidifying cooling / battery temperature adjustment mode. To do.
  • the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in this dehumidifying cooling / battery temperature control mode are the same as those in FIG. Is controlled by opening rather than fully opening.
  • the air conditioning controller 32 executes the dehumidifying cooling / battery temperature control mode instead of the dehumidifying cooling operation, or switches between the dehumidifying cooling operation and the dehumidifying cooling / battery temperature control mode, as in the cooling / battery temperature control mode.
  • the temperature is shifted to the dehumidifying cooling / battery temperature control mode and the auxiliary expansion valve 73 and the heat medium heater 66 are controlled to adjust the temperature Tb of the battery 55 to the target battery temperature TBO within the appropriate temperature range.
  • the air conditioning controller 32 executes the internal cycle / battery temperature adjustment mode. .
  • the air conditioning controller 32 opens the auxiliary expansion valve 73 to control the valve opening degree in the state of the refrigerant circuit R in the internal cycle operation of FIG.
  • the circulation pump 62 is also operated, so that the refrigerant and the heat medium heat exchanger 64 exchange heat with the refrigerant and the heat medium.
  • FIG. 9 shows the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in the internal cycle / battery temperature control mode.
  • the high-temperature refrigerant discharged from the compressor 2 is radiated by the radiator 4 and then flows through the solenoid valve 22 to the refrigerant pipe 13F.
  • a part of the refrigerant exiting the refrigerant pipe 13F reaches the indoor expansion valve 8 through the refrigerant pipe 13B, and is decompressed there, and then flows into the heat absorber 9 and evaporates. Since the moisture in the air blown out from the indoor blower 27 by the heat absorption action at this time condenses and adheres to the heat absorber 9, the air is cooled and dehumidified.
  • the remainder of the refrigerant exiting the refrigerant pipe 13F is divided into the branch pipe 72, decompressed by the auxiliary expansion valve 73, and then evaporated in the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64. Since the refrigerant absorbs heat from the heat medium circulating in the battery temperature adjusting device 61, the battery 55 is cooled in the same manner as described above.
  • the refrigerant from the heat absorber 9 is sucked into the compressor 2 through the refrigerant pipe 13C and the accumulator 12, and the refrigerant from the refrigerant-heat medium heat exchanger 64 is also passed from the refrigerant pipe 74 through the accumulator 12 to the compressor 2. Will be inhaled.
  • the air conditioning controller 32 executes the internal cycle / battery temperature adjustment mode instead of the internal cycle operation, or the internal cycle operation, as in the heating / battery temperature adjustment mode described above.
  • the internal cycle / battery temperature control mode is switched, or the internal cycle / battery temperature control mode is switched to and the auxiliary expansion valve 73 and the heat medium heater 66 are controlled to keep the temperature Tb of the battery 55 within the appropriate temperature range. It is adjusted to a certain target battery temperature TBO.
  • the air conditioning controller 32 executes the dehumidifying heating / battery temperature control mode.
  • the air conditioning controller 32 opens the auxiliary expansion valve 73 and controls the valve opening degree in the state of the refrigerant circuit R in the dehumidifying heating operation of FIG.
  • the circulation pump 62 is also operated, so that the refrigerant and the heat medium heat exchanger 64 exchange heat with the refrigerant and the heat medium.
  • FIG. 10 shows the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in the dehumidifying heating / battery temperature control mode.
  • a part of the condensed refrigerant exiting the radiator 4 is diverted, and the diverted refrigerant flows into the refrigerant pipe 13F through the electromagnetic valve 22, and comes out of the refrigerant pipe 13F, and a part of the refrigerant pipe is refrigerant pipe.
  • the refrigerant flows from 13B to the indoor expansion valve 8, and the remaining refrigerant flows to the outdoor expansion valve 6. That is, after a part of the divided refrigerant is decompressed by the indoor expansion valve 8, it flows into the heat absorber 9 and evaporates.
  • the remainder of the refrigerant exiting the refrigerant pipe 13F flows into the branch pipe 72, is decompressed by the auxiliary expansion valve 73, and then evaporates in the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64. Since the refrigerant absorbs heat from the heat medium circulating in the battery temperature adjusting device 61, the battery 55 is cooled in the same manner as described above.
  • the refrigerant discharged from the heat absorber 9 is sucked into the compressor 2 through the refrigerant pipe 13C and the accumulator 12, and the refrigerant discharged from the outdoor heat exchanger 7 passes through the refrigerant pipe 13D, the electromagnetic valve 21, the refrigerant pipe 13C, and the accumulator 12. Then, the refrigerant that has been sucked into the compressor 2 and has exited the refrigerant-heat medium heat exchanger 64 is also sucked into the compressor 2 from the refrigerant pipe 74 through the accumulator 12.
  • the air conditioning controller 32 executes the dehumidifying heating / battery temperature adjustment mode instead of the dehumidifying heating operation, or in the dehumidifying heating operation, as in the above-described heating / battery temperature adjustment mode.
  • the temperature Tb of the battery 55 is kept within the appropriate temperature range. It is adjusted to a certain target battery temperature TBO.
  • FIG. 11 shows the refrigerant flow (solid arrow) in the refrigerant circuit R and the heat medium flow (broken arrow) in the battery temperature adjusting device 61 in the battery temperature adjustment single mode.
  • the air conditioning controller 32 operates the compressor 2 and also operates the outdoor fan 15.
  • the indoor expansion valve 8 is fully closed and the auxiliary expansion valve 37 is opened to depressurize the refrigerant.
  • the outdoor expansion valve 6 is fully opened.
  • the air conditioning controller 32 closes the electromagnetic valve 17 and the electromagnetic valve 21 and stops the indoor blower 27.
  • the circulation pump 62 is operated so that the refrigerant and the heat medium heat exchanger 64 exchange heat between the refrigerant and the heat medium.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 passes through the radiator 4 and reaches the outdoor expansion valve 6 from the refrigerant pipe 13E.
  • the outdoor expansion valve 6 since the outdoor expansion valve 6 is fully opened, the refrigerant passes through the refrigerant pipe 13J, flows into the outdoor heat exchanger 7 as it is, is cooled by the outside air ventilated by the outdoor blower 15, and is condensed and liquefied.
  • frost has grown on the outdoor heat exchanger 7
  • the outdoor heat exchanger 7 is defrosted by the heat dissipation action at this time.
  • the refrigerant that has exited the outdoor heat exchanger 7 enters the refrigerant pipe 13A.
  • the indoor expansion valve 8 since the indoor expansion valve 8 is fully closed, all the refrigerant that has exited the outdoor heat exchanger 7 is supplemented via the branch pipe 72. It reaches the expansion valve 73.
  • the refrigerant is decompressed by the auxiliary expansion valve 73 and then flows into the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64 to evaporate. At this time, an endothermic effect is exhibited.
  • the refrigerant evaporated in the refrigerant flow path 64B is repeatedly circulated through the refrigerant pipe 74, the refrigerant pipe 13C, and the accumulator 12 in order and sucked into the compressor 2.
  • the heat medium discharged from the circulation pump 62 is heated through the heat medium heater 66 (when the heat medium heater 66 generates heat), and the heat medium pipe 68 is filled with the refrigerant-heat medium heat exchanger 64.
  • the heat medium channel 64A is reached, where heat is absorbed by the refrigerant evaporated in the refrigerant channel 64B, and the heat medium is cooled.
  • the heat medium heated by the heat medium heater 66 and / or cooled by the endothermic action of the refrigerant leaves the refrigerant-heat medium heat exchanger 64 and reaches the battery 55, and after exchanging heat with the battery 55,
  • the circulation sucked into the circulation pump 62 is repeated (indicated by broken line arrows in FIG. 11).
  • the air conditioning controller 32 controls the auxiliary expansion valve 73 and the heat medium heater 66 to control the temperature Tb of the battery 55 in the appropriate temperature range, as in the heating / battery temperature adjustment mode described above. It adjusts to the target battery temperature TBO.
  • the control unit 30 (the air conditioning controller 32, the vehicle controller 35, and the battery controller 40) executes at the start-up of the vehicle with reference to FIG. 12 (FIG. 11) and FIG.
  • the start-up battery temperature adjustment control will be described.
  • the control unit 30 performs the start-up battery temperature adjustment control. Execute battery heating mode. In this application, when the vehicle starts, it does not mean that the vehicle starts (runs), but that the electric vehicle is turned on (the key is turned or the start button is pressed). It means that the vehicle air conditioner 1 is also operable.
  • the air conditioning controller 32 opens the first switch 81 and closes the second switch 82 as shown in FIG. As a result, power is not supplied to the electrical equipment of the refrigerant circuit R including the compressor 2, and air conditioning in the passenger compartment is prohibited. On the other hand, the electric equipment of the battery temperature adjusting device 61 including the heat medium heater 66 can be supplied with power.
  • the air conditioning controller 32 operates the circulation pump 62 of the battery temperature adjusting device 61 and energizes the heat medium heater 66 to generate heat.
  • the heat medium discharged from the circulation pump 62 reaches the heat medium heater 66, and after being heated there, reaches the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 through the heat medium pipe 68,
  • the battery 55 passes through the battery 55.
  • the battery 55 is heated by the heat medium heated by the heat medium heater 66, and the temperature rises.
  • the heat medium after heat exchange with the battery 55 repeats circulation (represented by broken line arrows in FIG. 12) that is sucked into the circulation pump 62 again.
  • the air conditioning controller 32 When the temperature of the battery 55 (battery temperature Tb) rises in the battery heating mode in such battery temperature control at start-up and becomes equal to or higher than the allowable lower limit temperature TL, the air conditioning controller 32 performs the battery temperature control at start-up. Then, the first switch 81 shown in FIG. 12 is closed to allow electric power to be supplied to the electric equipment of the refrigerant circuit R such as the compressor 2, and the air conditioning in the passenger compartment is permitted. Thereafter, the heating / battery temperature adjustment mode of FIG. 7, the dehumidification cooling / battery temperature adjustment mode (cooling / battery temperature adjustment mode) of FIG. 8, the internal cycle / battery temperature adjustment mode of FIG. 9, and the dehumidification of FIG. In the heating / battery temperature adjustment mode or the battery temperature adjustment single mode of FIG. 11, the air conditioning controller 32 maintains the battery temperature Tb at the target battery temperature TBO equal to or higher than the allowable lower limit temperature TL.
  • FIG. 13 shows an example of transition of the battery temperature Tb and the output Qh of the heat medium heater 66 in the battery heating mode in the start-up battery temperature control.
  • the output Qh of the heat medium heater 66 is maximized.
  • the air conditioning controller 32 gradually decreases the output Qh of the heat medium heater 66.
  • the output Qh of the heat medium heater 66 is adjusted by PID control or the like so that the battery temperature Tb becomes the target battery temperature TBO (battery temperature maintaining section).
  • the air conditioning controller 32 of the control unit 30 air-conditions the vehicle interior by the vehicle air conditioner 1. And the battery heating mode of the start-time battery temperature adjustment control in which the battery 55 is heated by the battery temperature adjustment device 61 of the vehicle air conditioner 1 is executed. It is possible to prevent the battery 55 from deteriorating without affecting the driving in a situation where the power required for air conditioning and driving in the passenger compartment is low, and the durability of the battery 55 is improved. Will be able to.
  • the air conditioning controller 32 heats the battery 55 by the battery temperature adjusting device 61 of the vehicle air conditioner 1, the temperature of the battery 55 can be raised at an early stage. Thereby, the air conditioning in the passenger compartment can be started early.
  • the air conditioning controller 32 ends the battery temperature adjustment control at the start and permits the vehicle air conditioning by the vehicle air conditioner 1, and thereafter the vehicle Since the temperature of the battery 55 is maintained at the allowable lower limit temperature TL or more by the air conditioner 1 for a vehicle, the state of the battery 55 can be maintained well while air conditioning the vehicle interior.
  • the compressor 2 that compresses the refrigerant
  • the radiator 4 that heats the air that dissipates the refrigerant and supplies the air to the vehicle interior, and the heat that absorbs the refrigerant into the vehicle interior.
  • a heat absorber 9 that cools the air to be supplied
  • an outdoor heat exchanger 7 that is provided outside the passenger compartment to absorb or dissipate the refrigerant
  • a battery that adjusts the temperature of the battery 55 by circulating a heat medium in the battery 55.
  • the battery temperature adjusting device 61 includes a refrigerant-heat medium heat exchanger 64 that exchanges heat between the refrigerant and the heat medium, a heat medium heater 66 that heats the heat medium, and an air conditioning controller. 32 realizes the above control smoothly by using what controls the operation of the vehicle air conditioner 1 with the temperature of the battery 55 itself or the temperature of the heat medium as the battery temperature Tb. It becomes possible way.
  • the control unit 30 performs the start-up battery temperature adjustment control. Execute battery cooling mode.
  • the flow of the refrigerant and the heat medium in the battery cooling mode in the battery temperature adjustment control at the time of starting is the same as that in the battery temperature adjustment single mode in FIG.
  • the heat medium heater 66 is not energized. That is, the air-conditioning controller 32 closes the first switch 81 and the second switch 82 so that electric power can be supplied to the electric device of the refrigerant circuit R including the compressor 2 and the electric device of the battery temperature adjusting device 61. And the compressor 2 is drive
  • the indoor expansion valve 8 is fully closed and the auxiliary expansion valve 37 is opened to depressurize the refrigerant.
  • the outdoor expansion valve 6 is fully opened.
  • the air conditioning controller 32 closes the electromagnetic valve 17 and the electromagnetic valve 21 and stops the indoor blower 27. As a result, air conditioning in the passenger compartment is prohibited. Then, the circulation pump 62 is operated so that the refrigerant and the heat medium heat exchanger 64 exchange heat between the refrigerant and the heat medium.
  • the high-temperature and high-pressure gas refrigerant discharged from the compressor 2 passes through the radiator 4 and reaches the outdoor expansion valve 6 from the refrigerant pipe 13E.
  • the outdoor expansion valve 6 since the outdoor expansion valve 6 is fully opened, the refrigerant passes through the refrigerant pipe 13J, flows into the outdoor heat exchanger 7 as it is, is cooled by the outside air ventilated by the outdoor blower 15, and is condensed and liquefied.
  • the refrigerant that has exited the outdoor heat exchanger 7 enters the refrigerant pipe 13A.
  • the indoor expansion valve 8 since the indoor expansion valve 8 is fully closed, all the refrigerant that has exited the outdoor heat exchanger 7 is supplemented via the branch pipe 72. It reaches the expansion valve 73.
  • the refrigerant is decompressed by the auxiliary expansion valve 73 and then flows into the refrigerant flow path 64B of the refrigerant-heat medium heat exchanger 64 to evaporate. At this time, an endothermic effect is exhibited.
  • the refrigerant evaporated in the refrigerant flow path 64B is repeatedly circulated through the refrigerant pipe 74, the refrigerant pipe 13C, and the accumulator 12 in order and sucked into the compressor 2.
  • the heat medium discharged from the circulation pump 62 passes through the heat medium heater 66 and reaches the heat medium flow path 64A of the refrigerant-heat medium heat exchanger 64 through the heat medium pipe 68, where the refrigerant flow path 64B. Heat is absorbed by the refrigerant evaporating inside, and the heat medium is cooled. The heat medium cooled by the heat absorption action of the refrigerant exits the refrigerant-heat medium heat exchanger 64 and reaches the battery 55, and after being cooled by exchanging heat with the battery 55, the circulation sucked into the circulation pump 62 is repeated. (Dotted line arrow in FIG. 11).
  • the air conditioning controller 32 When the temperature of the battery 55 (battery temperature Tb) is lowered in the battery cooling mode in such start-up battery temperature control, and becomes equal to or lower than the allowable upper limit temperature TH described above, the air conditioning controller 32 performs the start-up battery temperature control. Exit and allow air conditioning in the passenger compartment. Thereafter, the heating / battery temperature adjustment mode of FIG. 7, the dehumidification cooling / battery temperature adjustment mode (cooling / battery temperature adjustment mode) of FIG. 8, the internal cycle / battery temperature adjustment mode of FIG. 9, and the dehumidification of FIG. In the heating / battery temperature adjustment mode or the battery temperature adjustment single mode of FIG. 11, the air conditioning controller 32 maintains the battery temperature Tb at the target battery temperature TBO that is equal to or lower than the allowable upper limit temperature TH.
  • the air conditioning controller 32 of the control unit 30 prohibits the air conditioning of the vehicle interior by the vehicle air conditioner 1 when the temperature of the battery 55 is higher than the predetermined allowable upper limit temperature TH in the start-up battery temperature control. Since the vehicle air conditioning apparatus 1 executes the battery cooling mode in which the battery 55 is cooled, even when the temperature of the battery 55 is high at the start of the vehicle, the deterioration of the battery 55 is prevented without affecting travel. In addition, the durability of the battery 55 can be improved.
  • the air conditioning controller 32 cools the battery 55 by the vehicle air conditioner 1, the battery temperature Tb can be lowered at an early stage. As a result, even in such a case, air conditioning in the passenger compartment can be started early.
  • the air conditioning controller 32 ends the battery temperature adjustment control at the time of start and permits the vehicle air conditioning by the vehicle air conditioner 1. Since the temperature of the battery 55 is maintained at the allowable upper limit temperature TH or less by the air conditioning apparatus 1 for a vehicle, the state of the battery 55 can be satisfactorily maintained while air conditioning the vehicle interior.
  • the vehicle controller 35 may be configured not to drive the electric motor 65 for traveling and to prohibit the vehicle from traveling.
  • the air conditioning controller 32 and the vehicle controller 35 of the control unit 30 are set in advance so as to prohibit the running of the vehicle when the battery temperature adjustment control at the start is executed.
  • the air-conditioning controller 32 notifies the vehicle controller 35 that the start-time battery temperature control is to be executed, and when the vehicle controller 35 receives the notification, traveling is prohibited.
  • the vehicle is allowed to travel.
  • the temperature of the battery 55 can be increased or decreased at an early stage while further preventing the battery 55 from deteriorating.
  • air conditioning in the passenger compartment can be made possible early.
  • the air-conditioning controller 32 of the control unit 30 of the embodiment starts the vehicle at a predetermined pre-air-conditioning start scheduled time t1 and sets the air for the vehicle. It has a pre-air-conditioning function that can start air-conditioning of the passenger compartment by the harmony device 1.
  • the air conditioning controller 32 starts the vehicle at the time t1 when the pre-air conditioning start scheduled time t1 (for example, 6 am) is set by the user from the air conditioning operation unit 53 (the power is turned on: the power is turned on) In this case, the above-described start-up battery temperature control is executed.
  • the air conditioning controller 32 executes the battery heating mode of the start-time battery temperature adjustment control, and the battery temperature Tb is allowed.
  • the battery temperature Tb is higher than the above-described allowable upper limit temperature TH at the pre-air conditioning start scheduled time t1
  • the battery cooling mode of the start-time battery temperature control is executed, and the battery temperature Tb falls below the allowable upper limit temperature TH.
  • air conditioning in the passenger compartment is started.
  • the battery 55 can be prevented from deteriorating even when the vehicle interior is pre-air-conditioned.
  • the air conditioning controller 32 of the control unit 30 executes both the battery heating mode and the battery cooling mode in the battery temperature adjustment control at the start. Only the heating mode may be executed. In the invention of claim 3, only the battery cooling mode may be executed. Further, the configuration of the control unit 30 of the vehicle control system VC and the configuration of the refrigerant circuit R and the battery temperature adjusting device 61 described in the above embodiment are not limited thereto, and can be changed without departing from the gist of the present invention. Needless to say, it is possible.
  • Vehicle Control System 1 Vehicle Air Conditioner 2 Compressor 4 Radiator 6 Outdoor Expansion Valve 7 Outdoor Heat Exchanger 8 Indoor Expansion Valve 9 Heat Absorber 21, 22 Solenoid Valve 30 Control Unit 32 Air Conditioning Controller 35 Vehicle Controller 40 Battery Controller 55 Battery 61 Battery temperature adjusting device 62 Circulation pump 64 Refrigerant-heat medium heat exchanger 66 Heat medium heater (heating device) 72 Branch piping (branch circuit) 73 Auxiliary expansion valve 81 First switch 82 Second switch

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  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un système de commande pour un véhicule qui peut empêcher une dégradation de batterie à la fois dans des situations dans lesquelles la température de batterie pendant le démarrage du véhicule est élevée ou est faible. La solution selon l'invention porte sur un système de commande (VC) pour un véhicule qui comprend un climatiseur de véhicule 1 qui est alimenté par une batterie 55 pour conditionner l'air dans la cabine de véhicule et qui ajuste la température de la batterie 55, et une unité de commande qui commande le déplacement du véhicule et le fonctionnement du climatiseur de véhicule, dans laquelle, lorsque le véhicule a démarré, si la température de la batterie 55 est inférieure à une température limite inférieure autorisée prescrite, le conditionnement d'air à l'intérieur de la cabine de véhicule par le climatiseur de véhicule 1 est interdit, et une commande de température de batterie de démarrage est effectuée pour chauffer la batterie 55 au moyen du climatiseur de véhicule 1.
PCT/JP2019/005636 2018-03-22 2019-02-15 Système de commande pour véhicule Ceased WO2019181311A1 (fr)

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JP2018054213A JP2019169260A (ja) 2018-03-22 2018-03-22 車両用制御システム
JP2018-054213 2018-03-22

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CN112622561A (zh) * 2020-12-18 2021-04-09 长城汽车股份有限公司 乘员舱和电池降温方法、装置以及车辆
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JP6946375B2 (ja) 2019-06-24 2021-10-06 本田技研工業株式会社 電動車両
JP7334681B2 (ja) 2020-06-12 2023-08-29 株式会社デンソー 車両空調システム
JP7334682B2 (ja) 2020-06-12 2023-08-29 株式会社デンソー 車両空調システム
CN116457982A (zh) * 2020-11-20 2023-07-18 尼得科株式会社 调温装置
JP7597053B2 (ja) * 2022-02-15 2024-12-10 トヨタ自動車株式会社 温度制御システム
JP7786311B2 (ja) * 2022-07-14 2025-12-16 株式会社デンソー 車載機器昇温装置
WO2025203244A1 (fr) * 2024-03-26 2025-10-02 日産自動車株式会社 Procédé de commande de température de batterie et système de régulation de température de batterie

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CN112622561A (zh) * 2020-12-18 2021-04-09 长城汽车股份有限公司 乘员舱和电池降温方法、装置以及车辆
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US12168388B2 (en) * 2021-11-12 2024-12-17 Toyota Jidosha Kabushiki Kaisha Vehicle power management system

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