WO2009087799A1 - 車両の充電制御装置および車両 - Google Patents
車両の充電制御装置および車両 Download PDFInfo
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- WO2009087799A1 WO2009087799A1 PCT/JP2008/068711 JP2008068711W WO2009087799A1 WO 2009087799 A1 WO2009087799 A1 WO 2009087799A1 JP 2008068711 W JP2008068711 W JP 2008068711W WO 2009087799 A1 WO2009087799 A1 WO 2009087799A1
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- Prior art keywords
- vehicle
- power
- pilot signal
- cplt
- potential
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- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- 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
- B60L53/20—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 characterised by converters located in the vehicle
- B60L53/24—Using the vehicle's propulsion converter for charging
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- 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
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
- B60L2220/54—Windings for different functions
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- 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
- Y02T10/64—Electric machine technologies in electromobility
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- 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
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- 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
- Y02T90/12—Electric charging stations
-
- 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 charge control device and a vehicle, and more particularly, to a vehicle charge control device and a vehicle configured to be able to charge a power storage device for driving a vehicle from a power source outside the vehicle.
- a hybrid vehicle is a vehicle equipped with an internal combustion engine as a power source together with an electric motor.
- the fuel cell vehicle is a vehicle equipped with a fuel cell as a DC power source for driving the vehicle.
- a vehicle that can charge a power storage device for driving a vehicle mounted on the vehicle from a power source of a general household is known.
- a power outlet provided in a house and a charging port provided in a vehicle with a charging cable electric power is supplied from the power supply of a general household to the power storage device.
- a vehicle that can charge the power storage device mounted on the vehicle from a power source outside the vehicle is also referred to as a “plug-in vehicle”.
- Patent Document 1 discloses an abnormality detection device capable of detecting an abnormality that occurs when a power storage device is charged from a power source outside the vehicle in such a plug-in vehicle. According to this abnormality detection device, based on the alternating current command value and the alternating current flowing in the coil, an abnormality such as a disconnection or a power failure of the power supply outside the vehicle is detected after charging of the power storage device is started from the power supply outside the vehicle. can do.
- Non-Patent Document 1 SAE Electric Vehicle Conductive Charge Coupler
- Patent Document 2 Japan “General requirements for conductive charging systems for electric vehicles”
- SAE Electric Vehicle Conductive Charge Coupler and “General Requirements for Conductive Charging System for Electric Vehicles”, a standard related to a control pilot is defined as an example.
- the control pilot is defined as a control line that connects a control circuit of EVSE (Electric Vehicle Supply Equipment) that supplies power to the vehicle from the premises wiring and a grounding portion of the vehicle via a control circuit on the vehicle side.
- EVSE Electric Vehicle Supply Equipment
- Based on the pilot signal communicated via the line, the connection state of the charging cable, the availability of power supply from the power source to the vehicle, the rated current of the EVSE, and the like are determined.
- the pilot signal is an indispensable signal for plug-in vehicle charging control, and abnormality detection of the pilot signal, particularly detection of disconnection of the control line through which the pilot signal is communicated, is extremely important in the plug-in vehicle. is there.
- the abnormality detection device disclosed in Japanese Patent Laid-Open No. 2000-270484 is useful in that it can detect an abnormality such as a disconnection of a power supply outside the vehicle or a power failure.
- an abnormality such as a disconnection of a power supply outside the vehicle or a power failure.
- Anomaly detection methods have not been studied.
- an object of the present invention is to control vehicle charging that can be detected by distinguishing between disconnection of a control line through which a pilot signal is communicated and non-feed from a power source.
- An apparatus and a vehicle are provided.
- a vehicle charge control device is a vehicle charge control device configured to be able to charge a power storage device for driving a vehicle mounted on a vehicle from a power source outside the vehicle, the EVSE control device; A potential operation circuit and a resistance element are provided.
- the EVSE control device is provided outside the vehicle, and is configured to generate a pilot signal that can recognize the state of the vehicle by operating a potential on the vehicle side and transmit the pilot signal to the vehicle.
- the potential operation circuit is mounted on the vehicle and is connected to a control pilot line through which a pilot signal from the EVSE control device is transmitted, and is configured to be able to reduce the potential of the pilot signal to a specified potential according to the state of the vehicle.
- the resistance element is arranged between the control pilot line and the ground node on the EVSE control device side from the predetermined control pilot line disconnection detectable range, and is controlled when an abnormality of the pilot signal is detected in the vehicle.
- the potential of the pilot line is lowered to a specified potential.
- the pilot signal is given to the vehicle via a charging cable for supplying power to the vehicle from a power source outside the vehicle.
- the resistance element is provided in the vicinity of the vehicle inlet of the vehicle to which the charging cable is connected.
- the vehicle charge control device further includes a switch.
- the switch is connected in series with the resistance element between the control pilot line and the ground node, and is turned on when an abnormality of the pilot signal is detected in the vehicle.
- the vehicle charging control device further includes a relay.
- the relay is provided in a charging cable for supplying electric power from a power supply outside the vehicle to the vehicle, and is turned on / off according to a given command.
- the EVSE control device includes a first voltage detection device that detects the potential of the pilot signal, and outputs a connection command to the relay when the potential detected by the first voltage detection device drops to a specified potential.
- the vehicle charge control device further includes a second voltage detection device and an abnormality detection device.
- the second voltage detection device detects the voltage of the power line for inputting power from the power source in the vehicle.
- the abnormality detection device detects disconnection of the control pilot line and no power supply from the power source based on the detection voltage and the pilot signal detected by the second voltage detection device.
- the abnormality detection device determines that the control pilot line is disconnected when the pilot signal is not input and the voltage of the power source is detected by the second voltage detection device.
- the abnormality detection device determines that there is no power supply from the power supply when the pilot signal is not input and the voltage of the power supply is not detected by the second voltage detection device.
- the vehicle is a vehicle configured to be able to charge the power storage device for driving the vehicle from a power supply outside the vehicle, and includes a control pilot line, a potential operation circuit, and a resistance element.
- the control pilot line is a pilot signal generated outside the vehicle, and transmits a signal capable of recognizing the state of the vehicle outside the vehicle when the potential is operated in the vehicle.
- the potential operation circuit is connected to the control pilot line, and is configured to be able to reduce the potential of the pilot signal to a specified potential according to the state of the vehicle.
- the resistance element is disposed between the control pilot line and the ground node on the input terminal side of the pilot signal from the outside of the vehicle with respect to the predetermined control pilot line disconnection detectable range, and an abnormality of the pilot signal is detected. When this happens, the potential of the control pilot line is lowered to the specified potential.
- the pilot signal is given to the vehicle via a charging cable for supplying power to the vehicle from a power source outside the vehicle.
- the resistance element is provided in the vicinity of the vehicle inlet to which the charging cable is connected.
- the vehicle further includes a switch.
- the switch is connected in series with the resistance element between the control pilot line and the ground node, and is turned on when an abnormality of the pilot signal is detected.
- the vehicle further includes a voltage detection device and an abnormality detection device.
- the voltage detection device detects a voltage of a power line for inputting power from a power source.
- the abnormality detection device detects disconnection of the control pilot line and no power supply from the power source based on the detection voltage and pilot signal detected by the voltage detection device.
- the abnormality detection device determines that the control pilot line is disconnected when the pilot signal is not input and the voltage of the power source is detected by the voltage detection device.
- the abnormality detection device determines that there is no power supply from the power supply when the pilot signal is not input and the voltage of the power supply is not detected by the voltage detection device.
- the vehicle further includes a charger for charging the power storage device by converting electric power supplied from a power source outside the vehicle into a voltage level of the power storage device.
- the potential operation circuit does not function due to disconnection of the control pilot line.
- the connection between the vehicle and the charging cable can be detected based on the potential drop of the pilot signal to the specified potential.
- the power supply voltage and the pilot signal can be detected simultaneously on the vehicle side by turning on the relay of the charging cable.
- FIG. 1 is an overall block diagram of a plug-in hybrid vehicle shown as an example of a vehicle to which a charge control device according to an embodiment of the present invention is applied. It is the figure which showed the alignment chart of the motive power division mechanism. It is a whole block diagram of the electrical system of the plug-in hybrid vehicle shown in FIG. It is a schematic block diagram of the part regarding the charging mechanism of the electric system shown in FIG.
- FIG. 5 is a diagram showing a waveform of a pilot signal generated by the EVSE control device shown in FIG. 4. It is a figure for demonstrating in detail the charging mechanism shown in FIG. It is a timing chart of a pilot signal and a switch.
- FIG. 1 is an overall configuration diagram of an electrical system of a plug-in hybrid vehicle equipped with a dedicated charger for charging a power storage device from a power source. It is a schematic block diagram of the part regarding the charging mechanism of the electric system shown in FIG.
- 100 engine 110 1st MG, 112, 122 neutral point, 120 2nd MG, 130 power split mechanism, 140 speed reducer, 150 power storage device, 160 front wheel, 170 ECU, 171, 604 voltage sensor, 172 current sensor, 210 1st Inverter, 210A, 220A upper arm, 210B, 220B lower arm, 220 second inverter, 250 SMR, 260 DFR, 270 charging inlet, 280 LC filter, 294 charger, 300 charging cable, 310 connector, 312 limit switch, 320 plug , 330 CCID, 332 relay, 334 EVSE control device, 400 power outlet, 402 power supply, 502 resistance circuit, 504, 506 input buffer, 508 CPU, 512 Vehicle earth, 602 oscillator, 606 electromagnetic coil, 608 electrical leakage detector, R1 resistive elements, R2 ⁇ R4 pull-down resistor, SW1, SW2 switch, L1 control pilot line, L2 ground line, L3 signal line.
- FIG. 1 is an overall block diagram of a plug-in hybrid vehicle shown as an example of a vehicle to which a charge control device according to an embodiment of the present invention is applied.
- this plug-in hybrid vehicle includes an engine 100, a first MG (Motor Generator) 110, a second MG 120, a power split mechanism 130, a speed reducer 140, a power storage device 150, and drive wheels 160. And an ECU 170.
- MG Motor Generator
- Engine 100, first MG 110 and second MG 120 are coupled to power split mechanism 130.
- This plug-in hybrid vehicle travels by driving force from at least one of engine 100 and second MG 120.
- the power generated by the engine 100 is divided into two paths by the power split mechanism 130. That is, one is a path transmitted to the drive wheel 160 via the speed reducer 140, and the other is a path transmitted to the first MG 110.
- Each of first MG 110 and second MG 120 is an AC rotating electric machine, for example, a three-phase AC synchronous motor including a U-phase coil, a V-phase coil, and a W-phase coil.
- First MG 110 generates power using the power of engine 100 divided by power split device 130. For example, when the state of charge of power storage device 150 (hereinafter also referred to as “SOC (State Of Charge)”) becomes lower than a predetermined value, engine 100 is started and power is generated by first MG 110, and first MG 110 performs power generation. The generated power is converted from alternating current to direct current by an inverter (described later), and the voltage is adjusted by a converter (described later) and stored in the power storage device 150.
- SOC State Of Charge
- Second MG 120 generates driving force using at least one of the electric power stored in power storage device 150 and the electric power generated by first MG 110. Then, the driving force of second MG 120 is transmitted to driving wheel 160 via reduction gear 140. Thus, second MG 120 assists engine 100 or causes the vehicle to travel with the driving force from second MG 120.
- the driving wheel 160 is shown as a front wheel, but the rear wheel may be driven by the second MG 120 instead of or together with the front wheel.
- the second MG 120 when the vehicle is braked, the second MG 120 is driven by the drive wheels 160 via the speed reducer 140, and the second MG 120 operates as a generator. Thus, second MG 120 operates as a regenerative brake that converts braking energy into electric power. The electric power generated by second MG 120 is stored in power storage device 150.
- the power split mechanism 130 includes a planetary gear including a sun gear, a pinion gear, a carrier, and a ring gear.
- the pinion gear engages with the sun gear and the ring gear.
- the carrier supports the pinion gear so as to be capable of rotating, and is connected to the crankshaft of engine 100.
- the sun gear is connected to the rotation shaft of first MG 110.
- the ring gear is connected to the rotation shaft of second MG 120 and speed reducer 140.
- Engine 100, first MG 110, and second MG 120 are connected via power split mechanism 130 formed of a planetary gear, so that the rotational speeds of engine 100, first MG 110, and second MG 120 are the same as shown in FIG. In the diagram, the relationship is a straight line.
- power storage device 150 is a chargeable / dischargeable DC power supply, and is composed of, for example, a secondary battery such as nickel metal hydride or lithium ion.
- the voltage of power storage device 150 is, for example, about 200V.
- power storage device 150 in addition to the power generated by first MG 110 and second MG 120, power supplied from a power source outside the vehicle is stored as will be described later.
- a large-capacity capacitor can also be used as power storage device 150, and the power generated by first MG 110 and second MG 120 and the power from the power source outside the vehicle can be temporarily stored, and the stored power can be supplied to second MG 120. Any power buffer may be used.
- ECU 170 Engine 100, first MG 110 and second MG 120 are controlled by ECU 170.
- ECU 170 may be divided into a plurality of ECUs for each function. The configuration of ECU 170 will be described later.
- FIG. 3 is an overall configuration diagram of the electrical system of the plug-in hybrid vehicle shown in FIG.
- this electrical system includes power storage device 150, SMR (System Main Relay) 250, converter 200, first inverter 210, second inverter 220, first MG 110, second MG 120, A DFR (Dead Front Relay) 260, an LC filter 280, and a charging inlet 270 are provided.
- SMR System Main Relay
- converter 200 first inverter 210, second inverter 220, first MG 110, second MG 120
- a DFR (Dead Front Relay) 260 an LC filter 280
- a charging inlet 270 are provided.
- SMR 250 is provided between power storage device 150 and converter 200.
- SMR 250 is a relay for electrically connecting / disconnecting power storage device 150 and the electric system, and is controlled to be turned on / off by ECU 170. That is, SMR 250 is turned on when the vehicle is running and when power storage device 150 is charged from a power source external to the vehicle, and power storage device 150 is electrically connected to the electrical system. On the other hand, when the vehicle system is stopped, SMR 250 is turned off, and power storage device 150 is electrically disconnected from the electric system.
- Converter 200 includes a reactor, two npn-type transistors, and two diodes.
- Reactor has one end connected to the positive electrode side of power storage device 150 and the other end connected to a connection node of two npn transistors.
- Two npn transistors are connected in series, and a diode is connected in antiparallel to each npn transistor.
- an IGBT Insulated Gate Bipolar Transistor
- a power switching element such as a power MOSFET (Metal Oxide Semiconductor Field-Effect Transistor) may be used.
- converter 200 When power is supplied from power storage device 150 to first MG 110 or second MG 120, converter 200 boosts the power discharged from power storage device 150 based on a control signal from ECU 170 and supplies the boosted power to first MG 110 or second MG 120. . In addition, when charging power storage device 150, converter 200 steps down the power supplied from first MG 110 or second MG 120 and outputs the reduced power to power storage device 150.
- First inverter 210 includes a U-phase arm, a V-phase arm, and a W-phase arm.
- the U-phase arm, V-phase arm, and W-phase arm are connected in parallel to each other.
- Each phase arm includes two npn-type transistors connected in series, and a diode is connected in antiparallel to each npn-type transistor.
- the connection point of the two npn-type transistors in each phase arm is connected to the corresponding coil end in the first MG 110 and an end different from the neutral point 112.
- the first inverter 210 converts the DC power supplied from the converter 200 into AC power and supplies the AC power to the first MG 110. In addition, first inverter 210 converts AC power generated by first MG 110 into DC power and supplies it to converter 200.
- Second inverter 220 also has the same configuration as first inverter 210, and the connection point of the two npn transistors in each phase arm is a corresponding coil end in second MG 120 and an end different from neutral point 122. Connected to.
- the second inverter 220 converts the DC power supplied from the converter 200 into AC power and supplies it to the second MG 120.
- Second inverter 220 supplies AC power generated by second MG 120 as a DC current to converter 200.
- first inverter 210 and second inverter 220 are connected between neutral point 112 of first MG 110 and second MG 120 from the power supply external to the vehicle by a method described later.
- AC power applied to the sex point 122 is converted into DC power based on a control signal from the ECU 170, and the converted DC power is supplied to the converter 200.
- the DFR 260 is provided between the power line pair connected to the neutral points 112 and 122 and the power line pair connected to the LC filter 280.
- the DFR 260 is a relay for electrically connecting / disconnecting the charging inlet 270 and the electric system, and is turned on / off by the ECU 170. In other words, when the vehicle is traveling, DFR 260 is turned off and electrical system and charging inlet 270 are electrically disconnected. On the other hand, when power storage device 150 is charged from a power supply outside the vehicle, DFR 260 is turned on and charging inlet 270 is electrically connected to the electrical system.
- the LC filter 280 is provided between the DFR 260 and the charging inlet 270.
- the charging inlet 270 is a power interface for receiving charging power from a power source outside the vehicle.
- charging inlet 270 is connected to a connector of a charging cable for supplying power from the power source outside the vehicle to the vehicle.
- ECU 170 generates control signals for driving SMR 250, converter 200, first inverter 210, second inverter 220, and DFR 260, and controls the operation of these devices.
- FIG. 4 is a schematic configuration diagram of a portion related to the charging mechanism of the electrical system shown in FIG.
- charging cable 300 that connects the plug-in hybrid vehicle and the power supply outside the vehicle includes a connector 310, a plug 320, and a CCID (Charging Circuit Interrupt Device) 330.
- CCID Charging Circuit Interrupt Device
- Connector 310 is configured to be connectable to a charging inlet 270 provided in the vehicle.
- the connector 310 is provided with a limit switch 312.
- limit switch 312 When connector 310 is connected to charging inlet 270, limit switch 312 is activated, and cable connection signal PISW indicating that connector 310 is connected to charging inlet 270 is input to ECU 170.
- the plug 320 is connected to a power outlet 400 provided in a house, for example.
- AC power is supplied to the power outlet 400 from a power source 402 (for example, a system power source).
- the CCID 330 includes a relay 332 and an EVSE control device 334.
- Relay 332 is provided on a pair of power lines for supplying charging power from power supply 402 to the plug-in hybrid vehicle.
- the relay 332 is ON / OFF controlled by the EVSE control device 334, and when the relay 332 is turned off, the electric circuit that supplies power from the power source 402 to the plug-in hybrid vehicle is cut off. On the other hand, when relay 332 is turned on, power can be supplied from power supply 402 to the plug-in hybrid vehicle.
- the EVSE control device 334 operates by the power supplied from the power source 402 when the plug 320 is connected to the power outlet 400. EVSE control device 334 generates pilot signal CPLT transmitted to ECU 170 of the vehicle via the control pilot line, connector 310 is connected to charging inlet 270, and the potential of pilot signal CPLT is lowered to a specified value. Then, pilot signal CPLT is oscillated at a prescribed duty cycle (ratio of pulse width to oscillation period).
- This duty cycle is set based on the rated current that can be supplied from the power source 402 to the vehicle via the charging cable 300.
- FIG. 5 is a diagram showing a waveform of pilot signal CPLT generated by EVSE control device 334 shown in FIG.
- pilot signal CPLT oscillates at a prescribed period T.
- the pulse width Ton of the pilot signal CPLT is set based on the rated current that can be supplied from the power source 402 to the vehicle via the charging cable 300. Then, the rated current is notified from the EVSE control device 334 to the ECU 170 of the vehicle using the pilot signal CPLT by the duty indicated by the ratio of the pulse width Ton to the period T.
- the rated current is determined for each charging cable, and if the type of charging cable is different, the rated current is also different, so the duty of the pilot signal CPLT is also different. Then, the ECU 170 of the vehicle receives the pilot signal CPLT transmitted from the EVSE control device 334 provided in the charging cable 300 via the control pilot line, and detects the duty of the received pilot signal CPLT, thereby The rated current that can be supplied from 402 to the vehicle via the charging cable 300 can be detected.
- EVSE control device 334 turns on relay 332 when preparation for charging is completed on the vehicle side.
- a voltage sensor 171 and a current sensor 172 are provided on the vehicle side.
- Voltage sensor 171 detects voltage VAC between the power line pair between charging inlet 270 and LC filter 280 and outputs the detected value to ECU 170.
- Current sensor 172 detects current IAC flowing through the power line between DFR 260 and neutral point 112 of first MG 110 and outputs the detected value to ECU 170.
- the current sensor 172 may be provided on the power line between the DFR 260 and the neutral point 122 of the second MG 120.
- FIG. 6 is a diagram for explaining the charging mechanism shown in FIG. 4 in more detail.
- CCID 330 includes an electromagnetic coil 606 and a leakage detector 608 in addition to relay 332 and EVSE control device 334.
- EVSE control device 334 includes an oscillator 602, a resistance element R ⁇ b> 1, and a voltage sensor 604.
- the oscillator 602 outputs a non-oscillating signal when the potential of the pilot signal CPLT detected by the voltage sensor 604 is near a specified potential V1 (for example, 12V), and when the potential of the pilot signal CPLT decreases from V1, A signal that oscillates at a frequency (for example, 1 kHz) and a duty cycle is output.
- V1 for example, 12V
- the potential of pilot signal CPLT is manipulated by switching the resistance value in resistance circuit 502 of ECU 170 as will be described later. As described above, the duty cycle is set based on the rated current that can be supplied from the power supply 402 to the vehicle via the charging cable.
- the EVSE control device 334 supplies a current to the electromagnetic coil 606.
- V3 for example, 6V
- the electromagnetic coil 606 generates an electromagnetic force and turns on the relay 332.
- Leakage detector 608 is provided in a power line pair for supplying charging power from power supply 402 to the plug-in hybrid vehicle, and detects the presence or absence of leakage. Specifically, leakage detector 608 detects an equilibrium state of currents flowing in opposite directions to the power line pair, and detects the occurrence of leakage when the equilibrium state breaks down. Although not particularly illustrated, when leakage is detected by leakage detector 608, power supply to electromagnetic coil 606 is interrupted and relay 332 is turned off.
- the ECU 170 includes a resistance circuit 502, input buffers 504 and 506, and a CPU (Control Processing Unit) 508.
- Charging inlet 270 includes a pull-down resistor R4 and a switch SW2.
- the resistance circuit 502 includes pull-down resistors R2 and R3 and a switch SW1.
- Pull-down resistor R2 is connected between control pilot line L1 through which pilot signal CPLT is communicated and vehicle ground 512.
- the pull-down resistor R3 and the switch SW1 are connected in series, and a circuit including the pull-down resistor R3 and the switch SW1 connected in series is connected in parallel to the pull-down resistor R2.
- the switch SW1 is turned on / off according to a control signal from the CPU 508.
- This resistance circuit 502 is a circuit for operating the potential of the pilot signal CPLT. That is, when connector 310 is connected to charging inlet 270, resistance circuit 502 lowers the potential of pilot signal CPLT to a prescribed potential V2 (for example, 9V) by pull-down resistor R2. In addition, when the switch SW1 is turned on in response to a control signal from the CPU 508, the resistance circuit 502 lowers the potential of the pilot signal CPLT to a specified potential V3 (for example, 6V) by pull-down resistors R2 and R3.
- V2 for example, 9V
- the pull-down resistor R4 and the switch SW2 are connected in series, and the circuit including the series-connected pull-down resistor R4 and the switch SW2 is connected between the control pilot line L1 and the ground line L2 connected to the vehicle ground 512.
- the switch SW2 is turned on / off according to a control signal from the CPU 508.
- This pull-down resistor R4 is provided for detecting disconnection of the control pilot line L1, and has, for example, a resistance value equivalent to that of the resistance element R1 in order to lower the potential of the pilot signal CPLT to a predetermined potential V3. .
- the detection of disconnection of the control pilot line L1 using the pull-down resistor R4 will be described in detail later.
- the input buffer 504 receives the pilot signal CPLT on the control pilot line L1 and outputs the received pilot signal CPLT to the CPU 508.
- the input buffer 506 receives the cable connection signal PISW from the signal line L3 connected to the limit switch 312 of the connector 310, and outputs the received cable connection signal PISW to the CPU 508.
- the cable connection signal PISW is a signal that is L (logic low) level when the connector 310 is connected to the charging inlet 270 and is H (logic high) level when not connected.
- CPU 508 determines the connection between charging inlet 270 and connector 310 based on cable connection signal PISW received from input buffer 506.
- CPU 508 detects a rated current that can be supplied from power supply 402 to the plug-in hybrid vehicle based on pilot signal CPLT received from input buffer 504.
- the CPU 508 activates the control signal output to the switch SW1.
- the potential of pilot signal CPLT drops to V3, and relay 332 is turned on in CCID 330.
- the CPU 508 turns on the DFR 260.
- AC power from power supply 402 is applied to neutral point 112 of first MG 110 and neutral point 122 of second MG 120 (both not shown), and charging control of power storage device 150 is executed.
- the CPU 508 controls the control pilot line L1 based on the pilot signal CPLT and the detected value of the voltage VAC from the voltage sensor 171. Disconnection detection is performed.
- the disconnection detection of the control pilot line L1 is performed as follows.
- the control pilot line L1 is suspected to be disconnected when the potential of the pilot signal CPLT is at the ground level.
- the pilot signal CPLT is not generated from the EVSE control device 334 due to the power failure of the power source 402 or the disconnection of the plug 320 and the power outlet 400, the control is not performed if the potential of the pilot signal CPLT is just the ground level. If the pilot line L1 is disconnected, it cannot be determined.
- the charging inlet 270 is provided with a pull-down resistor R4 for reducing the potential of the pilot signal CPLT output from the EVSE control device 334 to the specified potential V3.
- the CPU 508 When the potential of the pilot signal CPLT received by the CPU 508 is at the ground level despite the detection of the connection between the connector 310 and the charging inlet 270 based on the cable connection signal PISW, the CPU 508 outputs the control to the switch SW2. Activate the signal.
- the potential of the pilot signal CPLT output from the EVSE control device 334 is lowered to the potential V3 by the pull-down resistor R4.
- the EVSE control device 334 turns on the relay 332.
- electric power is supplied from the power source 402 to the vehicle via the charging cable 300 (since the DFR 260 is turned off, no electric power is supplied to the neutral points 112 and 122), and the voltage of the power source 402 is supplied by the voltage sensor 171. Detected.
- the CPU 508 can determine that the control pilot line L1 is disconnected when the voltage of the power source 402 is detected by the voltage sensor 171.
- the CPU 508 indicates that the power source 402 is out of power or It can be determined that the plug 320 is not connected to the power outlet 400.
- the range in which disconnection of control pilot line L1 can be detected is between charging inlet 270 and ECU 170 (for example, charging inlet 270 and ECU 170 are connected). Wire harness etc.).
- the CPU 508 stops charging the power storage device 150 from the power supply 402, stores the detection result, and outputs a disconnection occurrence alarm to the user.
- FIG. 7 is a timing chart of pilot signal CPLT and switches SW1 and SW2.
- pilot signal CPLT (cable side) indicates the potential of pilot signal CPLT detected by voltage sensor 604 of EVSE control device 334.
- Pilot signal CPLT (vehicle side) indicates the potential of pilot signal CPLT detected by CPU 508.
- EVSE controller 334 receives pilot signal CPLT and receives power from power supply 402. appear.
- the connector 310 of the charging cable 300 is not connected to the charging inlet 270 on the vehicle side, the potential of the pilot signal CPLT is V1 (for example, 12V), and the pilot signal CPLT is in a non-oscillating state.
- V1 for example, 12V
- the potential of the pilot signal CPLT is lowered to V2 (for example, 9V) by the pull-down resistor R2 of the resistance circuit 502. Then, at time t3, EVSE control device 334 oscillates pilot signal CPLT.
- V2 for example, 9V
- EVSE control device 334 oscillates pilot signal CPLT.
- the switch SW1 is turned on by the CPU 508 at time 4. Then, the potential of pilot signal CPLT is further lowered to V3 (for example, 6V) by pull-down resistor R3 of resistance circuit 502.
- the control pilot line L1 is disconnected in the vehicle at time t5. Due to the disconnection, on the EVSE control device 334 side, the potential of the pilot signal CPLT returns to V1, and on the vehicle side, the potential of the pilot signal CPLT becomes the ground level. Although not particularly illustrated, the CCID relay 332 is turned off when the potential of the pilot signal CPLT becomes V1.
- pilot signal CPLT On the vehicle side, the potential of pilot signal CPLT is at the ground level despite the connection between connector 310 and charging inlet 270 being detected based on cable connection signal PISW. Turned on. Then, in EVSE controller 334, the potential of pilot signal CPLT is lowered to V3 by pull-down resistor R4, and CCID relay 332 is turned on.
- charging of power storage device 150 is executed from power supply 402 outside the vehicle using pilot signal CPLT, and disconnection detection of control pilot line L1 to which pilot signal CPLT is communicated is performed.
- FIG. 8 is a diagram showing a zero-phase equivalent circuit of first and second inverters 210 and 220 and first and second MGs 110 and 120 shown in FIG.
- Each of the first inverter 210 and the second inverter 220 is formed of a three-phase bridge circuit as shown in FIG. 3, and there are eight patterns of ON / OFF combinations of six switching elements in each inverter. Two of the eight switching patterns have zero interphase voltage, and such a voltage state is called a zero voltage vector.
- the three switching elements of the upper arm can be regarded as the same switching state (all on or off), and the three switching elements of the lower arm can also be regarded as the same switching state.
- the zero voltage vector is controlled in at least one of the first and second inverters 210 and 220. Therefore, in FIG. 8, the three switching elements of the upper arm of the first inverter 210 are collectively shown as an upper arm 210A, and the three switching elements of the lower arm of the first inverter 210 are collectively shown as a lower arm 210B. ing. Similarly, the three switching elements of the upper arm of the second inverter 220 are collectively shown as an upper arm 220A, and the three switching elements of the lower arm of the second inverter 220 are collectively shown as a lower arm 220B.
- this zero-phase equivalent circuit includes a single-phase PWM converter that receives a single-phase AC power supplied from the power source 402 to the neutral point 112 of the first MG 110 and the neutral point 122 of the second MG 120. Can be seen. Therefore, the zero voltage vector is changed based on the zero phase voltage command in at least one of the first and second inverters 210 and 220 so that the first and second inverters 210 and 220 operate as the arms of the single phase PWM converter. By performing switching control, AC power supplied from the power source 402 can be converted into DC power and the power storage device 150 can be charged.
- the pull-down resistor R4 for forcibly reducing the potential of the pilot signal CPLT output from the EVSE control device 334 to the specified potential V3 is provided in the charging inlet 270. Even if the resistance circuit 502 does not function due to disconnection of the control pilot line L1, the potential of the pilot signal CPLT can be lowered to the EVSE control device 334. Accordingly, on the premise of connection between the vehicle and charging cable 300, the voltage of power supply 402 and pilot signal CPLT can be detected simultaneously in the vehicle by turning on relay 332 of CCID 330.
- the control pilot line L1 is disconnected, and if the voltage of the power source 402 is not detected. It can be determined that there is no power supply from the power source 402. Therefore, according to this embodiment, it is possible to detect the disconnection of the control pilot line L1 separately from the non-power supply from the power source 402.
- the pull-down resistor R4 is provided in the charging inlet 270.
- the pull-down resistor R4 is provided in the vicinity of the charging inlet 270 of the wire harness disposed between the charging inlet 270 and the ECU 170, and EVSE control.
- the device 334 may be provided.
- the pull-down resistor R4 is provided in the EVSE control device 334, it is necessary to separately provide a signal line for turning on / off the switch SW2 from the vehicle side.
- charging power supplied from power supply 402 is applied to neutral point 112 of first MG 110 and neutral point 122 of second MG 120, and first and second inverters 210 and 220 are connected to single-phase PWM.
- power storage device 150 is charged by operating as a converter, a dedicated charger for charging power storage device 150 from power supply 402 may be separately provided.
- FIG. 9 is an overall configuration diagram of an electrical system of a plug-in hybrid vehicle equipped with a dedicated charger for charging the power storage device 150 from the power source 402.
- this electric system further includes a charger 294 in the electric system shown in FIG.
- Charger 294 is connected to a power line between SMR 250 and converter 200, and charging port 270 is connected to the input side of charger 294 via DFR 260 and LC filter 280.
- charger 294 converts the charging power supplied from power supply 402 to the voltage level of power storage device 150 and outputs it to power storage device 150 based on a control signal from ECU 170. Then, the power storage device 150 is charged.
- the configuration of the part related to the charging mechanism of the electrical system shown in FIG. 9 is the same as the configuration of the charging mechanism in the above embodiment shown in FIG.
- the DFR 260 may be omitted.
- the series / parallel type hybrid vehicle has been described in which the power splitting mechanism 130 divides the power of the engine 100 and can be transmitted to the drive wheels 160 and the first MG 110. It can also be applied to other types of hybrid vehicles. That is, for example, the engine 100 is used only to drive the first MG 110 and the driving force of the vehicle is generated only by the second MG 120, or a so-called series-type hybrid vehicle, or only regenerative energy out of the kinetic energy generated by the engine 100
- the present invention can also be applied to a hybrid vehicle that is recovered as electric energy, a motor-assist type hybrid vehicle in which a motor assists the engine as the main power if necessary.
- the present invention is also applicable to a hybrid vehicle that does not include converter 200.
- the present invention can also be applied to an electric vehicle that does not include engine 100 and travels only by electric power, and a fuel cell vehicle that further includes a fuel cell as a power source in addition to a power storage device.
- the resistance circuit 502 corresponds to an example of the “potential operation circuit” in the present invention
- the pull-down resistor R4 corresponds to an example of the “resistance element” in the present invention.
- Charging inlet 270 corresponds to an example of “vehicle inlet” in the present invention
- switch SW2 corresponds to an example of “switch” in the present invention.
- relay 332 corresponds to an example of “relay” in the present invention
- voltage sensor 604 corresponds to an example of “first voltage detection device” in the present invention.
- voltage sensor 171 corresponds to an embodiment of “second voltage detection device” in the present invention
- CPU 508 corresponds to an embodiment of “abnormality detection device” in the present invention.
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Abstract
Description
また、この発明は、エンジン100を備えずに電力のみで走行する電気自動車や、電源として蓄電装置に加えて燃料電池をさらに備える燃料電池車にも適用可能である。
Claims (14)
- 車両に搭載された車両駆動用の蓄電装置(150)を車両外部の電源(402)から充電可能に構成された車両の充電制御装置であって、
前記車両の外部に設けられ、前記車両側で電位操作されることにより前記車両の状態を認識可能なパイロット信号(CPLT)を生成して前記車両へ送信可能に構成されたEVSE制御装置(334)と、
前記車両に搭載され、前記EVSE制御装置(334)からの前記パイロット信号(CPLT)が伝送されるコントロールパイロット線(L1)に接続されて前記車両の状態に応じて前記パイロット信号(CPLT)の電位を規定電位に低減可能に構成された電位操作回路(502)と、
予め定められた前記コントロールパイロット線(L1)の断線検出可能範囲よりも前記EVSE制御装置(334)側において前記コントロールパイロット線(L1)と接地ノードとの間に配設され、前記車両において前記パイロット信号(CPLT)の異常が検知されたときに前記コントロールパイロット線(L1)の電位を前記規定電位に低下させるための抵抗素子(R4)とを備える、車両の充電制御装置。 - 前記パイロット信号(CPLT)は、前記電源(402)から前記車両へ電力を供給するための充電ケーブル(300)を介して前記車両に与えられ、
前記抵抗素子(R4)は、前記充電ケーブル(300)が接続される前記車両の車両インレット(270)の近傍に設けられる、請求の範囲第1項に記載の車両の充電制御装置。 - 前記コントロールパイロット線(L1)と前記接地ノードとの間において前記抵抗素子(R4)に直列に接続され、前記車両において前記パイロット信号(CPLT)の異常が検知されたときにオンされるスイッチ(SW2)をさらに備える、請求の範囲第1項に記載の車両の充電制御装置。
- 前記電源(402)から前記車両へ電力を供給するための充電ケーブル(300)に設けられ、与えられる指令に従ってオン/オフされるリレー(332)をさらに備え、
前記EVSE制御装置(334)は、前記パイロット信号(CPLT)の電位を検出する第1の電圧検出装置(604)を含み、前記第1の電圧検出装置(604)によって検出された電位が前記規定電位に低下すると、前記リレー(332)へ接続指令を出力する、請求の範囲第1項に記載の車両の充電制御装置。 - 前記車両において前記電源(402)からの電力を入力するための電力線の電圧を検出する第2の電圧検出装置(171)と、
前記第2の電圧検出装置(171)による検出電圧および前記パイロット信号(CPLT)に基づいて、前記コントロールパイロット線(L1)の断線および前記電源(402)からの無給電を検出する異常検出装置(508)とをさらに備える、請求の範囲第4項に記載の車両の充電制御装置。 - 前記異常検出装置(508)は、前記パイロット信号(CPLT)が無入力であり、かつ、前記第2の電圧検出装置(171)によって前記電源(402)の電圧が検出されたとき、前記コントロールパイロット線(L1)が断線しているものと判定する、請求の範囲第5項に記載の車両の充電制御装置。
- 前記異常検出装置(508)は、前記パイロット信号(CPLT)が無入力であり、かつ、前記第2の電圧検出装置(171)によって前記電源(402)の電圧が検出されないとき、前記電源(402)からの給電が無いものと判定する、請求の範囲第5項に記載の車両の充電制御装置。
- 車両駆動用の蓄電装置(150)を車両外部の電源(402)から充電可能に構成された車両であって、
車両外部において生成されるパイロット信号(CPLT)であって当該車両において電位操作されることにより車両外部において当該車両の状態を認識可能な信号を伝送するためのコントロールパイロット線(L1)と、
前記コントロールパイロット線(L1)に接続され、当該車両の状態に応じて前記パイロット信号(CPLT)の電位を規定電位に低減可能に構成された電位操作回路(502)と、
予め定められた前記コントロールパイロット線(L1)の断線検出可能範囲よりも前記パイロット信号(CPLT)の車両外部からの入力端子側において前記コントロールパイロット線(L1)と接地ノードとの間に配設され、前記パイロット信号(CPLT)の異常が検知されたときに前記コントロールパイロット線(L1)の電位を前記規定電位に低下させるための抵抗素子(R4)とを備える車両。 - 前記パイロット信号(CPLT)は、前記電源(402)から当該車両へ電力を供給するための充電ケーブル(300)を介して当該車両に与えられ、
前記抵抗素子(R4)は、前記充電ケーブル(300)が接続される車両インレット(270)の近傍に設けられる、請求の範囲第8項に記載の車両。 - 前記コントロールパイロット線(L1)と接地ノードとの間において前記抵抗素子(R4)に直列に接続され、前記パイロット信号(CPLT)の異常が検知されたときにオンされるスイッチ(SW2)をさらに備える、請求の範囲第8項に記載の車両。
- 前記電源(402)からの電力を入力するための電力線の電圧を検出する電圧検出装置(171)と、
前記電圧検出装置(171)による検出電圧および前記パイロット信号(CPLT)に基づいて、前記コントロールパイロット線(L1)の断線および前記電源(402)からの無給電を検出する異常検出装置(508)とをさらに備える、請求の範囲第8項に記載の車両。 - 前記異常検出装置(508)は、前記パイロット信号(CPLT)が無入力であり、かつ、前記電圧検出装置(171)によって前記電源(402)の電圧が検出されたとき、前記コントロールパイロット線(L1)が断線しているものと判定する、請求の範囲第11項に記載の車両。
- 前記異常検出装置(508)は、前記パイロット信号(CPLT)が無入力であり、かつ、前記電圧検出装置(171)によって前記電源(402)の電圧が検出されないとき、前記電源(402)からの給電が無いものと判定する、請求の範囲第11項に記載の車両。
- 前記電源(402)から供給される電力を前記蓄電装置(150)の電圧レベルに変換して前記蓄電装置(150)を充電するための充電器(294)をさらに備える、請求の範囲第8項に記載の車両。
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| Application Number | Priority Date | Filing Date | Title |
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| EP08870221A EP2234238A1 (en) | 2008-01-11 | 2008-10-16 | Vehicle charge control apparatus and vehicles |
| US12/747,941 US20100268406A1 (en) | 2008-01-11 | 2008-10-16 | Charging control apparatus for vehicle and vehicle |
| JP2009548855A JP4659909B2 (ja) | 2008-01-11 | 2008-10-16 | 車両の充電制御装置および車両 |
| CN2008801244398A CN101911428B (zh) | 2008-01-11 | 2008-10-16 | 车辆的充电控制装置以及车辆 |
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| JP2008-004636 | 2008-01-11 | ||
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| JP6164196B2 (ja) * | 2014-11-13 | 2017-07-19 | トヨタ自動車株式会社 | 電動車両及び給電システム |
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| US11802919B2 (en) * | 2020-11-23 | 2023-10-31 | Rivian Ip Holdings, Llc | Systems and methods for remotely testing continuity of electrical wiring |
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- 2008-10-16 JP JP2009548855A patent/JP4659909B2/ja not_active Expired - Fee Related
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| EP2459151B1 (en) * | 2009-07-28 | 2021-03-03 | 3M Innovative Properties Company | Cationically hardenable dental composition, process of production and use thereof |
| JP2011135747A (ja) * | 2009-12-25 | 2011-07-07 | Toyota Motor Corp | 電力制御装置 |
| CN103038090A (zh) * | 2010-07-01 | 2013-04-10 | 德克萨斯仪器股份有限公司 | 在领示线上的通信 |
| CN103038090B (zh) * | 2010-07-01 | 2015-09-30 | 德克萨斯仪器股份有限公司 | 在领示线上的通信 |
| CN103648833A (zh) * | 2010-11-24 | 2014-03-19 | 威罗门飞行公司 | 电动车辆服务设备的随机重启装置和方法 |
| JPWO2013054435A1 (ja) * | 2011-10-14 | 2015-03-30 | トヨタ自動車株式会社 | 電気自動車用の充電装置 |
| JP2019129702A (ja) * | 2018-01-24 | 2019-08-01 | ドクター エンジニール ハー ツェー エフ ポルシェ アクチエンゲゼルシャフトDr. Ing. h.c. F. Porsche Aktiengesellschaft | トラクションバッテリ充電装置 |
| US10926653B2 (en) | 2018-01-24 | 2021-02-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Traction battery charging arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4659909B2 (ja) | 2011-03-30 |
| US20100268406A1 (en) | 2010-10-21 |
| CN101911428B (zh) | 2013-06-05 |
| JPWO2009087799A1 (ja) | 2011-05-26 |
| CN101911428A (zh) | 2010-12-08 |
| EP2234238A1 (en) | 2010-09-29 |
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