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WO2023128128A1 - Procédé et dispositif de commande de batterie pour réaliser une charge parallèle d'une batterie de véhicule électrique sur la base d'un système de commande de batterie - Google Patents

Procédé et dispositif de commande de batterie pour réaliser une charge parallèle d'une batterie de véhicule électrique sur la base d'un système de commande de batterie Download PDF

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Publication number
WO2023128128A1
WO2023128128A1 PCT/KR2022/013126 KR2022013126W WO2023128128A1 WO 2023128128 A1 WO2023128128 A1 WO 2023128128A1 KR 2022013126 W KR2022013126 W KR 2022013126W WO 2023128128 A1 WO2023128128 A1 WO 2023128128A1
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WO
WIPO (PCT)
Prior art keywords
battery
sub
main
charging
electric vehicle
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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/KR2022/013126
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English (en)
Korean (ko)
Inventor
송종원
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.)
Somuna Co Ltd
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Somuna Co Ltd
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Publication date
Priority claimed from KR1020210192513A external-priority patent/KR20230102408A/ko
Application filed by Somuna Co Ltd filed Critical Somuna Co Ltd
Publication of WO2023128128A1 publication Critical patent/WO2023128128A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • 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

Definitions

  • the present invention relates to a battery control method and apparatus for performing parallel charging of a battery of an electric vehicle based on a battery control system, and more particularly, to support charging of a main battery and a sub-battery of an electric vehicle in parallel. It relates to a battery control method and device.
  • Electric vehicles may include various types of vehicles, among which, in the case of an electric truck, a main battery that supplies power required to drive the electric truck and operate a plurality of electronic devices included in the electric truck ( It may include a main battery and a sub battery that supplies power required to operate the air conditioning system for the cargo space.
  • the main battery included in the electric truck can supply power necessary for operating various electric devices such as headlights and instrument panels of the electric truck.
  • the sub-battery included in the electric truck can supply necessary power so that the refrigerating and freezing devices installed in the cargo space of the electric truck can operate.
  • the main battery and the sub-battery included in the electric truck can be charged and discharged independently of each other, and when at least one of the main battery and the sub-battery is discharged, the object to which power is supplied through the discharged battery Failure to supply power may cause problems in operation.
  • the main battery and the sub-battery included in the electric truck can be independently charged, and for this, the electric truck has an independent charging means (eg, a charging port, etc.) It can mean the same device) is a problem that must be provided.
  • an independent charging means eg, a charging port, etc.
  • One object of the present invention to solve the above problems is to provide a battery control method for supporting charging of a main battery and a sub battery of an electric vehicle in parallel.
  • Another object of the present invention to solve the above problems is to provide a battery control device for supporting charging of a main battery and a sub battery of an electric vehicle in parallel.
  • a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system performs parallel charging of a battery of an electric vehicle based on a battery control system.
  • a battery control method performed by a battery control device that performs monitoring on whether an air conditioner previously interlocked with the sub battery among a main battery and a sub battery of the electric vehicle is operating, the main battery of the electric vehicle and monitoring whether electric devices pre-interlocked with the main battery among the sub-batteries are operating, obtaining charging voltage information, which is information on the charging voltages of the main battery and the sub-batteries, to charge each battery. Checking the state and controlling the charging of each battery based on a result of comparing the state of charge of each battery and a result of monitoring whether the battery is operating.
  • the electrical device among the electrical device and the air conditioner operates alone, and the state of charge value of the main battery is greater than or equal to the value of the state of charge of the sub battery. If the difference in values is greater than or equal to a preset threshold, the sub-battery is controlled to be charged first among the main battery and the sub-batteries, and if the difference in values is less than the preset threshold, the main battery and the sub-batteries It is possible to control the main battery and the sub-battery to be charged in parallel through a parallel connection to .
  • the electrical device among the electrical device and the air conditioner operates alone, and the SOC value of the main battery is less than the SOC value of the sub battery,
  • the main battery and the sub-battery are controlled to be charged first, and when the difference between the values is less than a preset threshold, the main battery and the sub-battery It is possible to control the main battery and the sub-battery to be charged in parallel through a parallel connection to the batteries.
  • the air conditioning device among the electrical equipment and the air conditioning device operates alone, and the state of charge value of the main battery is greater than or equal to the value of the state of charge of the sub battery. If the difference in values is greater than or equal to a preset threshold, the sub-battery is controlled to be charged first among the main battery and the sub-batteries, and if the difference in values is less than the preset threshold, the main battery and the sub-batteries It is possible to control the main battery and the sub-battery to be charged in parallel through a parallel connection to .
  • the air conditioning device among the electrical equipment and the air conditioning device operates alone, and the SOC value of the main battery is less than the SOC value of the sub battery,
  • the main battery and the sub-battery are controlled to be charged first, and when the difference between the values is less than a preset threshold, the main battery and the sub-battery It is possible to control the main battery and the sub-battery to be charged in parallel through a parallel connection to the batteries.
  • the battery control method for performing parallel charging of the battery of an electric vehicle based on the battery control system supports mutual bi-directional charging and discharging of the main battery and sub-battery included in the electric truck, thereby providing a single charging means.
  • it may mean a device such as a charging port), there is an effect of being able to charge the main battery and the sub battery in parallel.
  • a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system is a method of charging a main battery and a sub battery in parallel through a function of a changeover switch in a process of charging a main battery and a sub battery in parallel. There is an effect of improving the efficiency of charging by organically supporting charging for the battery.
  • FIG. 1 is a conceptual diagram illustrating a battery control system performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • FIG. 2 is a hardware block diagram of a battery control device performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • FIG. 4 shows a value of a state of charge of a main battery in a situation in which an electric device operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating a case where the state of charge of the battery is greater than or equal to the value of the state of charge of the battery.
  • FIG. 5 is a diagram showing a value of a state of charge of a main battery in a situation in which an electric device operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating the case of less than the value of the state of charge of the battery.
  • FIG. 6 shows a value of a state of charge of a main battery in a situation in which an air conditioner operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating a case where the state of charge of the battery is greater than or equal to the value of the state of charge of the battery.
  • FIG. 7 shows a value of a state of charge of a main battery in a situation in which an air conditioner operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating the case of less than the value of the state of charge of the battery.
  • first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.
  • the terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.
  • FIG. 1 is a conceptual diagram illustrating a battery control system performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system basically includes an energy supply source 100 supplying energy and an energy supply source ( It can be performed through the battery control system 200 that converts energy into power through 100 and uses it.
  • the energy supply source 100 may refer to a means or device such as a charging station for an electric vehicle that supports charging of a battery pre-installed in the electric vehicle.
  • the battery control system 200 for directly performing a battery control method of performing parallel charging of a battery of an electric vehicle based on the battery control system according to an embodiment of the present invention includes a battery control device 210, a main A battery 220, a sub battery 230, an electric device 240, and an air conditioning device 250 may be included.
  • the battery control method for performing parallel charging of the battery of an electric vehicle based on the battery control system is a battery control device among a plurality of components included in the battery control system 200 ( 210), and for this purpose, the battery control device 210 may include an analysis module 211 and a control module 212.
  • the analysis module 211 of the battery control device 210 may collect information about states, such as the state of charge and operation of the main battery 220 and the sub-battery 230 of the electric vehicle. It can play a role of analyzing information about the state, such as the charged state and operation status.
  • control module 211 of the battery control device 210 controls the main battery 220 and the sub battery 220 whose charging and discharging are controlled by the battery control system 200 based on the result analyzed by the analysis module 211. It may serve to control charging and discharging of the battery 230 .
  • the control module 211 of the battery control device 210 may refer to a device capable of performing a role such as a DC-DC bidirectional converter and a switch that changes a target for supplying power. .
  • the main battery 220 of the electric vehicle can basically supply power for the operation of the electric device 240 included in the electric vehicle, but based on the result analyzed by the analysis module 211, the control module 211 ), power may be supplied for the operation of the air conditioner 250 included in the electric vehicle.
  • the sub-battery 230 of the electric vehicle can basically supply power for the operation of the air conditioner 250 included in the electric vehicle, but based on the result analyzed by the analysis module 211, the control module 211 ), power may be supplied for the operation of the electrical device 240 included in the electric vehicle.
  • a plurality of components included in the battery control system 200 described with reference to FIG. 1 may mean physical elements, but logical elements to describe functions and roles other than physical elements. could mean
  • the main battery 220 and the sub battery 230 included in the battery control system 200 may mean physical elements, but the battery control device 210 included in the battery control system 200, the battery The analysis module 211 and the control module 212 included in the control device 210 may mean logical elements.
  • FIG. 2 is a hardware block diagram of a battery control device performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system may refer to a battery control device included in a battery control system that performs parallel charging of a battery of an electric vehicle based on the battery control system.
  • the battery control device 300 performing parallel charging of a battery of an electric vehicle based on the battery control system according to an embodiment of the present invention includes at least one processor 310 and at least one processor It may include a memory 320 for storing instructions (instructions) instructing to perform at least one step.
  • the at least one processor 310 may include a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor in which methods according to embodiments of the present invention are performed.
  • CPU central processing unit
  • GPU graphics processing unit
  • dedicated processor in which methods according to embodiments of the present invention are performed.
  • Each of the memory 320 and the storage device 360 may include at least one of a volatile storage medium and a non-volatile storage medium.
  • the memory 320 may include at least one of a read only memory (ROM) and a random access memory (RAM).
  • the battery control device 300 that performs parallel charging of the battery of the electric vehicle based on the battery control system may include a transceiver 330 that performs communication through a wireless network.
  • the battery control device 300 performing parallel charging of the battery of the electric vehicle based on the battery control system may further include an input interface device 340, an output interface device 350, and a storage device 360. can Components included in the battery control device 300 that performs parallel charging of the battery of the electric vehicle based on the battery control system are connected by a bus 370 to communicate with each other.
  • At least one step may mean a step related to a battery control method of performing parallel charging of a battery of an electric vehicle based on the battery control system according to an embodiment of the present invention, and more specifically, battery control. Steps related to the battery control method performed by the battery control device 300 performing parallel charging of the battery of the electric vehicle based on the system may be included.
  • FIG. 3 is a flowchart illustrating a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention.
  • a battery control method for performing parallel charging of a battery of an electric vehicle based on the battery control system according to an embodiment of the present invention is based on the battery control system according to an embodiment of the present invention. It can be performed in a battery control device that performs parallel charging of the vehicle's battery.
  • the battery control device may monitor whether an air conditioner previously interlocked with a sub battery among a main battery and a sub battery of an electric vehicle is operating (S310).
  • an electric vehicle may include a main battery and a sub battery, and the main battery and sub battery may refer to the main battery 220 and the sub battery 230 of the electric vehicle described with reference to FIG. 1 .
  • the main battery of the electric vehicle can basically supply power for the operation of electric devices included in the electric vehicle, but additionally (subsidiarily) the air conditioner included in the electric vehicle. Power can also be supplied for operation.
  • the sub-battery of the electric vehicle may basically supply power for the operation of the air conditioner included in the electric vehicle, but may additionally (subsidiarily) supply power for the operation of the electric device included in the electric vehicle.
  • the battery control device may perform monitoring based on the analysis module 211 described with reference to FIG. 1 with respect to whether the air conditioning device interlocked with the sub-battery is operating in advance, which is performed periodically based on a preset period. monitoring can also be performed.
  • the battery control device may monitor whether an electric device pre-interlocked with the main battery among the main battery and sub-battery of the electric vehicle operates (S320).
  • the specific process of monitoring the operation of the electric vehicle pre-interlocked with the main battery among the main battery and sub-batteries of the electric vehicle in the battery control device is a step S310 in the battery device of the main battery and the sub-battery of the electric vehicle. It may be similar to or identical to a specific process of monitoring the operation of an air conditioner pre-interlocked with a sub-battery among batteries.
  • the battery control device may obtain charging voltage information, which is information on charging voltages of the main battery and sub batteries, to check the charging state of each battery (S330).
  • the battery control device may obtain charging voltage information, which is information about charging voltages of the main battery and sub-battery of the electric vehicle, based on the analysis module 211 described with reference to FIG. 1 . That is, the battery control device may obtain charging voltage values of the main battery and sub-battery of the electric vehicle as charging voltage information.
  • the battery control device may check the charging states of the main battery and the sub-batteries based on the charging voltage values that are the charging voltage information obtained for the main battery and the sub-batteries. In other words, the battery control device may check the value of the charge amount, which is the state of charge of the main battery, as the value of the state of charge, and the value of the amount of charge, which is the state of charge of the sub-battery, as the value of the state of charge.
  • the battery control device may control charging of each battery based on a result of comparing the state of charge of each battery and a result of monitoring whether or not the battery is operating (S340).
  • the battery control device compares not only the result of comparing the state of charge of each battery and the result of monitoring whether or not it operates, but also by comparing the result of the comparison of the state of charge of each battery with a preset threshold value, The charging of each battery can be controlled by reflecting the result.
  • FIG. 4 shows a value of a state of charge of a main battery in a situation in which an electric device operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating a case where the state of charge of the battery is greater than or equal to the value of the state of charge of the battery.
  • a battery control device performing a battery control method of performing parallel charging of a battery of an electric vehicle based on a battery control system is an electric vehicle electric vehicle and an air conditioner.
  • the electric device operates independently and the SOC value of the main battery is greater than or equal to the SOC value of the sub battery, a difference between the SOC value of the main battery and the SOC value of the sub battery may be calculated.
  • the battery control device may check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to a preset threshold value (S341).
  • the preset threshold value used in the battery control device may refer to a value of a preset standard for determining whether a calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to a certain level.
  • the battery control device may compare the calculated difference value between the SOC value of the main battery and the SOC value of the sub battery with the preset threshold value used in the control device, and the comparison result Based on the preset threshold value used in the control device, it is possible to check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to the preset threshold value.
  • the battery control device may control the sub battery to be charged first among the main battery and the sub battery (S342).
  • the battery control device in a situation where an electrical device among electrical devices and an air conditioner of an electric vehicle is operated alone, the value of the state of charge of the main battery is greater than or equal to the value of the state of charge of the sub battery, and the value of the corresponding difference is
  • the charge is equal to or greater than a preset threshold, charging of a sub-battery other than the main battery among the main battery and sub-battery of the electric vehicle may be performed with priority.
  • the battery control device may control the main battery and the sub-battery to be charged in parallel through a parallel connection to the main battery and the sub-battery when the difference in value is less than a preset threshold (S343).
  • the battery control device can control the main battery and the sub-battery to be charged in parallel through a parallel connection to the main battery and the sub-battery based on the control module 212 previously described with reference to FIG. 1 . .
  • the battery control device may set the main battery and the sub-battery to be electrically connected to each other based on a parallel method through the control module 212, through which the main battery and the sub-battery can be simultaneously charged in parallel. can be controlled as much as possible.
  • FIG. 5 is a diagram showing a value of a state of charge of a main battery in a situation in which an electric device operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating the case of less than the value of the state of charge of the battery.
  • a battery control device performing a battery control method of performing parallel charging of a battery of an electric vehicle based on a battery control system is an electric vehicle electric vehicle and an air conditioner.
  • the electric device operates independently and the SOC value of the main battery is less than the SOC value of the sub battery, a difference between the SOC value of the main battery and the SOC value of the sub battery may be calculated.
  • the battery control device may check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to a preset threshold value (S344).
  • the battery control device may compare the calculated difference value between the SOC value of the main battery and the SOC value of the sub battery with the preset threshold value used in the control device, and the comparison result Based on the preset threshold value used in the control device, it is possible to check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to the preset threshold value.
  • the battery control device may control the main battery to be charged preferentially among the main battery and the sub-battery when the difference in value is equal to or greater than a preset threshold (S345).
  • the battery control device in a situation where an electrical device among electrical devices and an air conditioner of an electric vehicle is operated alone, the value of the state of charge of the main battery is less than the value of the state of charge of the sub battery, and the value of the corresponding difference is
  • the charge is equal to or greater than a preset threshold, the main battery other than the sub-battery among the main battery and sub-batteries of the electric vehicle may be charged with priority.
  • the battery control device may control the main battery and the sub-battery to be charged in parallel through a parallel connection to the main battery and the sub-battery (S346).
  • the battery control device performs a process similar to or identical to that previously described with reference to step S343, and when the difference in value is less than a preset threshold value, the battery control device connects the main battery and the sub battery in parallel to the main battery and the sub battery.
  • the battery can be controlled to be charged in parallel.
  • the battery control device may set the main battery and the sub-battery to be electrically connected to each other based on a parallel method through the control module 212, through which the main battery and the sub-battery can be simultaneously charged in parallel. can be controlled as much as possible.
  • FIG. 6 shows a value of a state of charge of a main battery in a situation in which an air conditioner operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating a case where the state of charge of the battery is greater than or equal to the value of the state of charge of the battery.
  • a battery control device performing a battery control method of performing parallel charging of a battery of an electric vehicle based on a battery control system is an electric vehicle electric vehicle and an air conditioner.
  • the air conditioner operates independently and the SOC value of the main battery is greater than or equal to the SOC value of the sub battery, a difference between the SOC value of the main battery and the SOC value of the sub battery may be calculated.
  • the battery control device may check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is equal to or greater than a preset threshold (S347).
  • the battery control device may compare the calculated difference value between the SOC value of the main battery and the SOC value of the sub battery with the preset threshold value used in the control device, and the comparison result Based on the preset threshold value used in the control device, it is possible to check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to the preset threshold value.
  • the battery control device may control the sub battery to be charged first among the main battery and the sub battery when the difference in value is equal to or greater than a preset threshold (S348).
  • the SOC value of the main battery is greater than or equal to the SOC value of the sub battery, and the value of the corresponding difference is
  • charging of a sub-battery other than the main battery among the main battery and sub-battery of the electric vehicle may be performed with priority.
  • the battery control device may control the main battery and the sub-battery to be charged in parallel through a parallel connection to the main battery and the sub-battery when the difference in value is less than a preset threshold (S349).
  • the battery control device performs a process similar to or identical to that previously described with reference to step S343, and when the difference in value is less than a preset threshold value, the battery control device connects the main battery and the sub battery in parallel to the main battery and the sub battery.
  • the battery can be controlled to be charged in parallel.
  • the battery control device may set the main battery and the sub-battery to be electrically connected to each other based on a parallel method through the control module 212, through which the main battery and the sub-battery can be simultaneously charged in parallel. can be controlled as much as possible.
  • FIG. 7 shows a value of a state of charge of a main battery in a situation in which an air conditioner operates alone in a battery control method for performing parallel charging of a battery of an electric vehicle based on a battery control system according to an embodiment of the present invention. It is a flowchart illustrating the case of less than the value of the state of charge of the battery.
  • a battery control device performing a battery control method of performing parallel charging of a battery of an electric vehicle based on a battery control system is an electric vehicle electric vehicle and an air conditioner.
  • the air conditioner operates independently and the SOC value of the main battery is less than the SOC value of the sub battery, a difference between the SOC value of the main battery and the SOC value of the sub battery may be calculated.
  • the battery control device may check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to a preset threshold value (S350).
  • the battery control device may compare the calculated difference value between the SOC value of the main battery and the SOC value of the sub battery with the preset threshold value used in the control device, and the comparison result Based on the preset threshold value used in the control device, it is possible to check whether the calculated difference between the SOC value of the main battery and the SOC value of the sub battery is greater than or equal to the preset threshold value.
  • the battery control device may control the main battery to be charged preferentially among the main battery and the sub-battery when the difference in value is equal to or greater than a preset threshold (S351).
  • the SOC value of the main battery is less than the SOC value of the sub battery, and the value of the corresponding difference is
  • the main battery other than the sub-battery among the main battery and sub-batteries of the electric vehicle may be charged with priority.
  • the battery control device may control the main battery and the sub-battery to be charged in parallel through parallel connection to the main battery and the sub-battery (S352).
  • the battery control device performs a process similar to or identical to that previously described with reference to step S343, and when the difference in value is less than a preset threshold value, the battery control device connects the main battery and the sub battery in parallel to the main battery and the sub battery.
  • the battery can be controlled to be charged in parallel.
  • the battery control device may set the main battery and the sub-battery to be electrically connected to each other based on a parallel method through the control module 212, through which the main battery and the sub-battery can be simultaneously charged in parallel. can be controlled as much as possible.
  • the battery control device performing the battery control method of performing parallel charging of the battery of an electric vehicle based on the battery control system according to an embodiment of the present invention according to an embodiment of the present invention
  • Parallel charging of the main battery and sub-batteries can be controlled, and a battery to be charged can be selectively determined in consideration of the operating state of the electric device and the air conditioner and the state of charge of each battery.
  • the methods according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium.
  • Computer readable media may include program instructions, data files, data structures, etc. alone or in combination.
  • Program instructions recorded on a computer readable medium may be specially designed and configured for the present invention or may be known and usable to those skilled in computer software.
  • Examples of computer readable media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.
  • Examples of program instructions may include not only machine language codes generated by a compiler but also high-level language codes that can be executed by a computer using an interpreter and the like.
  • the hardware device described above may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.
  • the above-described method or device may be implemented by combining all or some of its components or functions, or may be implemented separately.
  • control module 220 main battery
  • sub battery 240 electrical device
  • processor 320 memory
  • Transmitting/receiving device 340 Input interface device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Sont divulgués un procédé et un dispositif de commande d'une batterie pour réaliser une charge parallèle d'une batterie de véhicule électrique sur la base d'un système de commande de batterie. Le procédé et le dispositif de commande d'une batterie selon la présente invention comprennent les étapes consistant à : surveiller si un dispositif de climatisation qui a été relié à l'avance à, parmi une batterie principale et une sous-batterie d'un véhicule électrique, la sous-batterie, fonctionne ; surveiller si un dispositif électronique qui a été relié à l'avance à, parmi la batterie principale et la sous-batterie du véhicule électrique, la batterie principale, fonctionne ; vérifier un état de charge de chaque batterie en obtenant des informations de tension de charge, qui sont des informations concernant la tension de charge de la batterie principale et de la sous-batterie ; et commander la charge de chaque batterie sur la base du résultat de comparaison de l'état de charge de chaque batterie et du résultat de la surveillance du fonctionnement de la batterie.
PCT/KR2022/013126 2021-12-30 2022-09-01 Procédé et dispositif de commande de batterie pour réaliser une charge parallèle d'une batterie de véhicule électrique sur la base d'un système de commande de batterie Ceased WO2023128128A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20210192512 2021-12-30
KR10-2021-0192513 2021-12-30
KR10-2021-0192512 2021-12-30
KR1020210192513A KR20230102408A (ko) 2021-12-30 2021-12-30 배터리 제어 시스템을 기반으로 전기 자동차의 배터리에 대한 병행 충전을 수행하는 배터리 제어 방법 및 장치

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PCT/KR2022/013126 Ceased WO2023128128A1 (fr) 2021-12-30 2022-09-01 Procédé et dispositif de commande de batterie pour réaliser une charge parallèle d'une batterie de véhicule électrique sur la base d'un système de commande de batterie
PCT/KR2022/013127 Ceased WO2023128129A1 (fr) 2021-12-30 2022-09-01 Procédé et dispositif de commande de batterie permettant de procéder à une charge et une décharge bidirectionnelles d'une batterie de véhicule électrique sur la base d'un système de commande de batterie

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2002171682A (ja) * 2000-11-28 2002-06-14 Ngk Insulators Ltd 電気二重層コンデンサ用充電装置及び充電方法
KR20140078859A (ko) * 2012-12-18 2014-06-26 현대자동차주식회사 전기자동차용 보조배터리의 주기적 충전 방법
US20160229302A1 (en) * 2015-02-06 2016-08-11 Mando Corporation Apparatus and method for power control
KR20180051732A (ko) * 2016-11-08 2018-05-17 전북대학교산학협력단 전기자동차용 배터리의 균일 충전을 위한 직렬과 병렬의 병행 충전 기술
KR20210130009A (ko) * 2020-04-21 2021-10-29 현대자동차주식회사 차량 및 그 제어 방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101617292B1 (ko) * 2010-08-02 2016-05-18 엘지전자 주식회사 전기자동차 및 그 보조배터리의 충전제어방법.
JP5653207B2 (ja) * 2010-12-27 2015-01-14 アルパイン株式会社 消費電力制御システム
KR101836603B1 (ko) * 2016-03-10 2018-03-08 현대자동차주식회사 친환경차량의 직류변환장치 출력 제어 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002171682A (ja) * 2000-11-28 2002-06-14 Ngk Insulators Ltd 電気二重層コンデンサ用充電装置及び充電方法
KR20140078859A (ko) * 2012-12-18 2014-06-26 현대자동차주식회사 전기자동차용 보조배터리의 주기적 충전 방법
US20160229302A1 (en) * 2015-02-06 2016-08-11 Mando Corporation Apparatus and method for power control
KR20180051732A (ko) * 2016-11-08 2018-05-17 전북대학교산학협력단 전기자동차용 배터리의 균일 충전을 위한 직렬과 병렬의 병행 충전 기술
KR20210130009A (ko) * 2020-04-21 2021-10-29 현대자동차주식회사 차량 및 그 제어 방법

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