WO2013035424A1 - Dispositif pour accessoire électrique de véhicule - Google Patents

Dispositif pour accessoire électrique de véhicule Download PDF

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Publication number
WO2013035424A1
WO2013035424A1 PCT/JP2012/067480 JP2012067480W WO2013035424A1 WO 2013035424 A1 WO2013035424 A1 WO 2013035424A1 JP 2012067480 W JP2012067480 W JP 2012067480W WO 2013035424 A1 WO2013035424 A1 WO 2013035424A1
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WIPO (PCT)
Prior art keywords
voltage
battery
electric auxiliary
switching element
determination means
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Application number
PCT/JP2012/067480
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English (en)
Japanese (ja)
Inventor
山田　公一
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株式会社デンソー
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Publication of WO2013035424A1 publication Critical patent/WO2013035424A1/fr

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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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • 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
    • 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
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • 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
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to an electric auxiliary equipment for a vehicle.
  • the present invention relates to a vehicular electric auxiliary device that can charge a battery, which is a power storage device mounted on a vehicle, from the outside and can supply power from the battery to an external device.
  • a vehicle has a battery as a power storage device. And the vehicle provided with the charger which charges this battery using the electric power given from the outside is disclosed by patent document 1.
  • FIG. 1 a part of the circuit of the charger is shared with a motor driving power source of an electric compressor for an air conditioner that is an electric auxiliary machine driven by a battery, thereby reducing the number of parts.
  • the structure which reduces or suppresses a weight increase is provided.
  • Patent Document 1 it is possible to supply any power from the battery mounted on the vehicle to the outside by partially changing the hardware configuration.
  • an arbitrary AC voltage is generated from the battery voltage and output using a power supply device of the vehicle.
  • power is supplied from a battery to an external device using a vehicle power supply device, it is conceivable to use a household 100V electric device connected to the battery.
  • Patent Document 1 describing a circuit in which a part of a charger circuit is shared with a motor drive circuit of an electric compressor for an air conditioner is to suppress the weight of the vehicle.
  • the present invention provides a vehicular electric auxiliary device having a configuration in which a motor drive circuit of a vehicular electric compressor and a vehicular charger circuit are shared.
  • the purpose is to prohibit the output of the voltage to the outside when there is a possibility that an excessively large voltage may be supplied. That is, according to the present invention, before supplying a voltage from a vehicle to an external device, whether or not a predetermined circuit component is good or bad is determined in a state where the electric compressor is in an operating state or a non-operating state with an existing circuit in the electric auxiliary device.
  • the object is to prohibit the output of the voltage to the outside.
  • the first invention is a vehicular electric auxiliary device (25) for controlling an electric auxiliary device (3) driven by a battery (19), and includes an external connector (10). ), A charging circuit (21) for charging the battery (19) when an external power source (1) is connected to the connector (10), a booster circuit (22), and a drive circuit (23) for the electric auxiliary machine (3). ), A first switch (4, 5) provided between the electric auxiliary machine (3) and the drive circuit (23), and provided between the booster circuit (22) and the battery (19). In the vehicular electric accessory device (25) provided with the second switch (6) and the control device (20), the control device (20) determines the abnormality of the second switch (6). A first determination means (31) for performing a special operation in the booster circuit (22).
  • At least one of the second determination means (32) for determining the abnormality of the switching element (17) and the battery voltage output prohibition means (33) are provided, and the control device (20) passes through the connector (10).
  • the control device (20) passes through the connector (10).
  • the first determination means (31) turns off the second switch (6) with the first switch (4, 5) turned on.
  • the second switch (6) is determined to be abnormal. Equipment.
  • the second determination means (32) turns on the second switch (6) in a state in which the first switch (4, 5) is turned on. Then, the electric auxiliary machine (3) is set in a driving state, and when the electric auxiliary machine (3) does not operate normally in this state, the specific switching element (17) is determined to be abnormal. Electric auxiliary equipment.
  • the first determination means (31) turns off the second switch (6) with the first switch (4, 5) turned on, In this state, when the current flowing through the specific switching element (17) exceeds a predetermined current value, it is determined that the second switch (6) is abnormal.
  • the second determination means (32) turns on the second switch (6) with the first switch (4, 5) turned on. In this state, when the current flowing through the specific switching element (17) does not coincide with the instruction value, the specific electric switching device (17) is determined to be abnormal.
  • the first determination means (31) is configured such that the voltage value supplied to the outside through the connector (10) is lower than the voltage of the battery (19). It is an electric auxiliary machine device for vehicles characterized by operating only in the above.
  • the first determination unit does not operate when the supplied voltage is high, and the number of determination processes is reduced.
  • the second determination means (32) is configured such that the voltage value supplied to the outside through the connector (10) is higher than the voltage of the battery (19). It is an electric auxiliary machine device for vehicles characterized by operating only in the above.
  • the second determination means does not operate when the supplied voltage is low, so the number of determination processes is reduced.
  • the electric auxiliary machine (3) is a three-phase AC motor
  • the drive circuit (23) is a U of the electric auxiliary machine (3). It is configured to output phase upper arm drive signal, U phase lower arm drive signal, V phase upper arm drive signal, V phase lower arm drive signal, W phase upper arm drive signal, and W phase lower arm drive signal.
  • the booster circuit (22) includes a common part with the drive circuit (23), and the specific switching element (17) is an element for generating lower arm drive signals of the U phase, V phase, and W phase.
  • the specific switching element 17 can be an npn transistor or a MOSFET.
  • FIG. 2A is a partial circuit configuration diagram for explaining the operation of the relay when the battery is charged from the external power source in the circuit diagram of FIG. 1, and FIG. 2B is the voltage of the battery connected to the external device in the circuit diagram of FIG.
  • movement of a relay when the motor of an electric compressor is driven with a battery in the circuit diagram of FIG. 3 is a flowchart showing an embodiment of a procedure for detecting a relay abnormality by the first determination unit shown in FIG. 1 and an operation of a battery voltage output prohibiting unit.
  • 6 is a flowchart showing an embodiment of a procedure for detecting abnormality of the switching element by the second determination unit shown in FIG. 1 and the operation of the battery voltage output prohibiting unit.
  • 6 is a flowchart showing another example of a procedure for detecting abnormality of the relay by the first determination unit shown in FIG. 1 and the operation of the battery voltage output prohibiting unit.
  • It is a flowchart which shows another Example of the procedure in which the 2nd determination means shown in FIG. 1 detects abnormality of a switching element, and operation
  • the first determination means and the second determination means shown in FIG. 1 detect the abnormality of either the relay or the switching element according to the magnitude of the external supply voltage and the battery voltage, and the battery voltage output prohibition It is a flowchart which shows another Example of operation
  • FIG. 1 is a circuit configuration diagram showing the configuration of an embodiment of the vehicular electric accessory device 25 of the present invention.
  • the vehicle electric auxiliary device 25 of this embodiment includes a drive circuit 23 for an electric auxiliary device that can drive an electric auxiliary device such as the electric compressor motor 3 by using a battery 19 as a power source.
  • the vehicular electric auxiliary device 25 is connected to the connector 10 via the power supply filter 2, and the connector 10 is connected to an external power source 1 for alternating current and an external device that operates with a voltage supplied from the battery 19 through the connector 10. Equipment can be connected.
  • the vehicle electric auxiliary device 25 is provided with a charging circuit 21 and a booster circuit 22.
  • the charging circuit 21 charges the battery 19 when the external power source 1 is connected to the connector 10.
  • the booster circuit 22 boosts the voltage during charging, and boosts or lowers the voltage when an electrical device is connected to the connector 10 and the voltage is supplied from the vehicular electric accessory device 25 to an external device.
  • the charging circuit 21, the booster circuit 22, and the drive circuit 23 of the electric auxiliary machine are not independent circuits but share circuit components, and these circuits are all controlled by the control device 20. The configuration and operation of the charging circuit 21, the booster circuit 22, and the drive circuit 23 of the electric auxiliary machine will be described in detail later.
  • the vehicular electric auxiliary device 25 there are relays 4 and 5 which are switches for turning on / off the connection between the electric compressor motor 3 and the drive circuit 23 of the electric auxiliary device.
  • the booster circuit 22 includes relays 6 and 7, a reactor 8, and a capacitor 9, which are switches for turning on / off the connection between the driving circuit 23 of the electric auxiliary machine and the battery 19.
  • the electric compressor motor 3 is a three-phase AC motor, and includes a three-phase coil of U phase, V phase, and W phase for rotating the rotor. From the drive circuit 23, the U phase upper arm drive signal, the U phase lower arm drive signal, the V phase upper arm drive signal, the V phase lower arm drive signal, the W phase upper arm drive signal, and the W phase lower arm drive of the motor 3 are driven. A signal is output. For this reason, in the drive circuit 23, the switching elements 11, 15 connected in series, the switching elements 12, 16 connected in series, and the series connection are connected between the power line PL connected to the positive electrode of the battery 19 and the ground line EL. The switching elements 13 and 17 thus connected are connected in parallel.
  • the switching elements 11 and 15 connected in series generate a U-phase upper and lower arm drive signal
  • the switching elements 12 and 16 connected in series generate a V-phase upper and lower arm drive signal
  • the switching elements 13 and 15 connected in series 17 generates a W-phase upper and lower arm drive signal. Since the drive circuit of the electric compressor motor 3 is well known, further explanation is omitted.
  • connection point of the switching elements 11 and 15 is connected to the U-phase coil of the motor 3 via the relay 5
  • the connection point of the switching elements 12 and 16 is connected to the V-phase coil of the motor 3, and the switching elements 13 and 17 are connected. Is connected to the W-phase coil of the motor 3 via the relay 4.
  • the connection points of the switching elements 11 and 15 and the connection points of the switching elements 12 and 16 are connected to the connector 10 via the power supply filter 2.
  • the power supply filter 2 can be incorporated in the vehicular electric accessory device 25.
  • the drive circuit 23 functions as a three-phase inverter circuit that drives the motor 3 for the electric compressor.
  • the charging circuit 21 shares the circuit of the drive circuit 23 described above, and includes switching elements 11 and 15 connected in series and switching elements 12 and 16 connected in series.
  • the charging circuit 21 becomes a rectifier circuit using protective diodes for the switching elements 11, 12, 15, and 16.
  • the charging circuit 21 uses the switching elements 11, 12, 15, and 16 to turn on / off each power frequency (60 Hz if the voltage is 60 Hz). Turn off.
  • the booster circuit 22 shares the W-phase switching elements 13 and 17 of the drive circuit 23 and is connected in series between the power supply line PL and the ground line EL so as to be parallel to the switching elements 13 and 17.
  • Switching elements 14 and 18 and a capacitor 9 are provided.
  • a relay 6 is provided in the power supply line PL between the switching elements 13 and 17 and the switching elements 14 and 18, and a line connecting the connection point of the switching elements 13 and 17 and the connection point of the switching elements 14 and 18.
  • L is provided with a relay 7 and a reactor 8 connected in series.
  • the booster circuit 22 shares the switching elements 13 and 17 for the W phase of the drive circuit 23.
  • the switching elements to be shared may be for the U phase or the V phase, and are limited to the W phase. Is not to be done.
  • the switching elements 11 and 15 become a part of the booster circuit 22
  • the switching elements 12 and 16 become a part of the booster circuit 22. It becomes.
  • the booster circuit 22 functions as a booster circuit or a step-down circuit during charging when the external power supply 1 is connected to the connector 10.
  • an external device When an external device is connected to the connector 10 to supply an external voltage, an AC voltage is generated while increasing or decreasing the voltage of the battery 19 according to the voltage of the battery 19 and the supply voltage supplied to the outside. .
  • the switching elements 11 to 18 are npn transistors in the embodiment shown in FIG. 1, but IGBTs (insulated gate bipolar transistors) can be used, for example. In place of the npn transistor, a power switching element such as a power MOSFET (metal oxide semiconductor field effect transistor) can be used. All the on / off control of the switching elements 11 to 18 and the relays 4 to 7 is performed by the control device 20.
  • IGBTs insulated gate bipolar transistors
  • MOSFET metal oxide semiconductor field effect transistor
  • FIG. , B and FIG. 3 the operation of the circuit of the electric auxiliary equipment for a vehicle 25 of the embodiment configured as described above during charging, when supplying voltage to the outside, and when driving the motor for the electric compressor is shown in FIG. , B and FIG. 3, each will be described in detail. 2A and 2B and FIG. 3, the control device 20 is not shown.
  • FIG. 3 shows a circuit for driving the electric compressor motor 3.
  • driving the electric compressor motor 3 it is a condition that nothing is connected to the connector 10, and the relays 4, 5, 6 are turned on and the relay 7 is turned off.
  • a three-phase alternating current is generated by the drive circuit 23 using the voltage supplied from the battery 19 and is output to the motor 3 for the electric compressor.
  • the switching elements 11, 12, 13, 15, 16, and 17 perform a switching operation by a signal from the drive device 20, and the U phase upper arm drive signal, the U phase lower arm drive signal of the motor 3, A V-phase upper arm drive signal, a V-phase lower arm drive signal, a W-phase upper arm drive signal, and a W-phase lower arm drive signal are generated and output to the motor 3.
  • the switching elements 14 and 18 are off.
  • the present inventor may output an excessive voltage when supplying voltage to the outside because (a) the relay 6 of the booster circuit 22 is not turned off, and (b) It has been found that the switching element 17 of the booster circuit 22 is malfunctioning. That is, in the case of (a), even when the relay 6 is controlled to be turned off, the relay 6 is not turned off by contact welding or the like. When the switching elements 11 and 12 are turned on in this state, the voltage of the vehicle battery 19 is increased. In this case, the data is output to the outside as it is.
  • the external device when the voltage of the vehicle battery 19 is higher than the rated voltage of the external device, the external device may be damaged. Further, in the case of (b), when the voltage of the vehicle battery 19 is lower than the output target voltage, the voltage is boosted by the switching operation of the switching element 17, but the switching element 17 has an operation failure that increases the ON width. The boosted voltage becomes an overvoltage higher than the target voltage, and when the switching elements 11 and 12 are turned on, the overvoltage may be output to the outside and the external device may be damaged.
  • the control device 20 is provided with a first determination means 31, a second determination means 32, and a battery voltage output prohibition means 33.
  • the first determination unit 31 determines abnormality of the relay 6, and the second determination unit 32 determines abnormality of the switching element 17.
  • the battery voltage output prohibiting unit 33 operates so that the battery voltage is not output to the outside when either the first determination unit 31 or the second determination unit 32 determines abnormality.
  • the control device 20 includes a central control device (CPU), a storage device (ROM, RAM), an internal portion for realizing the first determination means 31, the second determination means 32, and the battery voltage output prohibition means 33. Although there are buses and the like, the configuration of a control device using a computer is well-known, and is not shown here.
  • step 401 When voltage is supplied from the battery 19 to the external device, first, in step 401, the relays 4 and 5 are turned on and the relays 6 and 7 are turned off.
  • step 402 the control device 20 drives the drive circuit so as to rotate the electric compressor motor 3 (shown as an electric compressor in the figure) at a specific rotational speed (arbitrary rotational speed) with the relay 6 turned off. 23 is controlled. If the relay 6 does not cause contact welding or the like and the relay 6 is normally turned off, the voltage of the battery 19 is not supplied to the drive circuit 23, so the control device 20 uses the drive circuit 23. The electric compressor motor 3 should not operate even if the drive is performed.
  • the control device 20 determines that the relay 6 is operating normally. .
  • the control device 20 determines that the relay 6 is not abnormally turned off.
  • the voltage is supplied from the battery 19 to the drive circuit 23. Therefore, the electric compressor motor 3 is predetermined when the control device 20 drives using the drive circuit 23. It will rotate at the number of rotations. Therefore, if it is detected by the control device 20 that the electric compressor motor 3 is rotating at a predetermined number of revolutions when the relay 6 is off, the control device 20 determines that the possibility that the relay 6 is abnormal is high. be able to.
  • step 403 the first determination means 31 of the control device 20 determines whether or not the electric compressor motor 3 is operating. If it is determined that the electric compressor motor 3 is not operating (YES), the process proceeds to step 404 and it is determined that the relay 6 is normal. In the following step 405, the battery voltage output prohibiting means 33 of the control device 20 permits the voltage supply to the outside and ends this routine. Therefore, in this case, voltage is supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25.
  • step 403 determines that the electric compressor motor 3 is operating (NO)
  • the process proceeds to step 406 to determine that the relay 6 is abnormal.
  • the battery voltage output prohibiting means 33 of the control device 20 prohibits voltage supply to the outside and ends this routine. Therefore, in this case, the voltage is not supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25, and the external device is prevented from being damaged due to the overvoltage from the vehicle electric auxiliary device 25 due to the abnormality of the relay 6. Is done.
  • FIG. 5 is a flowchart showing an example of the operation of the second determination unit 32 shown in FIG. 1 detecting the abnormality of the switching element 17 and the operation of the battery voltage output prohibiting unit 33.
  • the procedure shown in FIG. 5 is executed by the control device 20 shown in FIG. 1 every time voltage is supplied from the battery 19 to the external device.
  • Step 501 When voltage supply from the battery 19 to the external device is performed, in Step 501, the relays 4, 5, and 6 are turned on and the relay 7 is turned off.
  • the control device 20 controls the drive circuit 23 so as to rotate the electric compressor motor 3 (described as an electric compressor in the figure) at a specific rotation speed (arbitrary rotation speed).
  • the control device 20 performs driving using the drive circuit 23. It should work at Therefore, for example, if it can be detected that the rotation speed of the electric compressor motor 3 is the same as the instruction value, the control device 20 can determine that the switching element 17 is operating normally. On the contrary, if the switching element 17 has an abnormality such as an abnormality in the ON width, an abnormal state is detected such that the rotational speed of the motor 3 for the electric compressor is not stable or the current value becomes abnormal. Therefore, when the control device 20 performs driving using the drive circuit 23, if it is detected that the rotation speed or current value of the motor 3 for the electric compressor does not match the indicated value, the switching element 17 is abnormal. It can be determined that there is a high possibility.
  • step 503 the second determination means 32 of the control device 20 determines whether or not the electric compressor motor 3 is operating normally. When it determines with the electric compressor motor 3 operating normally (YES), it progresses to step 504 and determines with the switching element 17 being normal. In the following step 505, the battery voltage output prohibiting means 33 of the control device 20 permits the voltage supply to the outside and ends this routine. Therefore, in this case, voltage is supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25.
  • step 503 when the second determination means 32 of the control device 20 determines in step 503 that the electric compressor motor 3 is not operating normally (NO), the process proceeds to step 506 and the switching element 17 is determined to be abnormal.
  • the battery voltage output prohibiting means 33 of the control device 20 prohibits voltage supply to the outside and ends this routine. Therefore, in this case, the voltage is not supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25, and the external device is damaged due to the overvoltage from the vehicle electric auxiliary device 25 due to the abnormality of the switching element 17. Is prevented.
  • the controller 20 determines whether the relay 6 and the switching element 17 are normal or abnormal. When either one of the relay 6 and the switching element 17 is abnormal, voltage application from the vehicle electric auxiliary device 25 to the external device is prohibited. As a result, when a voltage is supplied from the battery 19 to the external device, the external device is prevented from being damaged due to overvoltage application.
  • the electric compressor motor 3 is operated in order to detect the normality / abnormality of the relay 6 and the switching element 17 when the voltage is supplied from the battery 19 to the external device.
  • the air conditioner since the air conditioner is operated by the operation of the motor 3 for the electric compressor, the passenger compartment of the vehicle is cooled, and there is a concern that the user of the vehicle is concerned about the operation of the air conditioner.
  • a current sensor 24 for detecting the phase current for the W phase of the motor 3 for the electric compressor using the switching element 7 is provided.
  • the means for detecting the current flowing through the switching element 17 may be a shunt resistor, but is preferably the current sensor 24 because it generates heat during charging and affects the booster circuit 22 during voltage supply.
  • the phase in which the current sensor is provided is not limited to the W phase, but may be the U phase or the V phase, and the current flowing through the switching element that drives any one of the U to W phases. Can be detected. It is well known that the current flowing through the switching element is detected, and there is a drive circuit 23 to which the current detection means is already attached. Therefore, the circuit is not enlarged by attaching the current sensor.
  • the W-phase lock current is detected, and the abnormality of the relay 6 or the abnormality of the switching element 17 is detected. Can be detected. If the lock operation detects the lock current, normality / abnormality of the relay 7 and the switching element 17 can be confirmed in a short time without operating the air conditioner. This procedure will be described below with reference to FIGS.
  • FIG. 6 is a flowchart showing another embodiment of the procedure in which the first determination means 31 shown in FIG. 1 detects an abnormality of the relay 6 and the operation of the battery voltage output prohibiting means 33.
  • the procedure shown in FIG. 6 is executed by the control device 20 shown in FIG. 1 every time voltage is supplied from the battery 19 to the external device.
  • Step 601 When voltage is supplied from the battery 19 to the external device, first, in Step 601, the relays 4 and 5 are turned on and the relays 6 and 7 are turned off. In the subsequent step 602, the electric compressor motor 3 is locked to a specific phase using the switching element 17 while the relay 6 is turned off. For example, one or both of the switching elements 11 and 12 are turned on, and the switching element 17 is switched. If the relay 6 does not cause contact welding or the like and the relay 6 is normally turned off, the voltage of the battery 19 is not supplied to the drive circuit 23, so the control device 20 switches the switching element 17. Even if the motor is operated, the motor current value detected by the current sensor 24 should be “0”.
  • step 603 the first determination unit 31 of the control device 20 determines whether or not the lock current is equal to or less than a predetermined value. When it is determined that the lock current is equal to or less than the predetermined value (YES), the process proceeds to step 604 and it is determined that the relay 6 is normal. In the subsequent step 605, the battery voltage output prohibiting means 33 of the control device 20 permits voltage supply to the outside, and this routine is terminated. Therefore, in this case, voltage is supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25.
  • step 603 determines in step 603 that the lock current exceeds a predetermined value (NO)
  • the process proceeds to step 606 and the relay 6 is determined to be abnormal.
  • the battery voltage output prohibiting means 33 of the control device 20 prohibits voltage supply to the outside and ends this routine. Therefore, in this case, the voltage is not supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25, and the external device is prevented from being damaged due to the overvoltage from the vehicle electric auxiliary device 25 due to the abnormality of the relay 6. Is done.
  • FIG. 7 is a flowchart showing an example of an operation in which the second determination unit 32 shown in FIG. 1 detects an abnormality of the switching element 17 and an operation of the battery voltage output prohibiting unit 33.
  • the procedure shown in FIG. 7 is executed by the control device 20 shown in FIG. 1 every time voltage is supplied from the battery 19 to the external device.
  • Step 701 When voltage supply from the battery 19 to the external device is performed, in Step 701, the relays 4, 5, and 6 are turned on and the relay 7 is turned off. In step 702, the electric compressor motor 3 is locked to a specific phase using the switching element 17 while the relay 6 is on. For example, one or both of the switching elements 11 and 12 are turned on, and the switching element 17 is switched. Since the voltage of the battery 19 is supplied to the drive circuit 23 when the switching element 17 operates normally, when the control device 20 performs the switching operation of the switching element 17, the current sensor 24 performs a predetermined motor current. The value should be detected.
  • step 703 the second determination means 32 of the control device 20 determines whether or not the indicated value by the control device 20 of the lock current matches the detected value. If it is determined that the lock current instruction value matches the detected value (YES), the process proceeds to step 704, where it is determined that the switching element 17 is normal. In the following step 705, the battery voltage output prohibiting means 33 of the control device 20 permits voltage supply to the outside, and this routine is finished. Therefore, in this case, voltage is supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25.
  • step 703 the second determination means 32 of the control device 20 determines in step 703 that the indicated value by the control device 20 of the lock current does not match the detected value (NO)
  • the process proceeds to step 706 and the switching element 17 Is determined to be abnormal.
  • the battery voltage output prohibiting means 33 of the control device 20 prohibits voltage supply to the outside and ends this routine. Therefore, in this case, the voltage is not supplied from the battery 19 to the external device through the vehicle electric auxiliary device 25, and the external device is applied by applying an overvoltage from the vehicle electric auxiliary device 25 to the external device due to an abnormality of the switching element 17. Is prevented from being damaged.
  • the control device 20 when the voltage is supplied from the battery 19 to the external device, the control device 20 operates the relay 6 and the switching element 17 normally. / If the abnormality is determined in a very short time and one of the relay 6 and the switching element 17 is abnormal, the application of voltage from the vehicular electric auxiliary device 25 to the external device is prohibited.
  • the electric compressor motor 3 is not operated, that is, installed in the vehicle. It is possible to determine whether the relay 6 and the switching element 17 are normal or abnormal without operating the air conditioner.
  • the output voltage and the voltage of the battery 19 are compared, and the voltage of the battery 19 is higher than the output voltage. For example, only the normal / abnormal judgment of the relay 6 is performed. If the voltage of the battery 19 is lower than the output voltage, only the normal / abnormal judgment of the switching element 17 is performed. This procedure will be described below with reference to FIG.
  • FIG. 8 shows that the first determination unit 31 and the second determination unit 32 shown in FIG. 1 are abnormal in either the relay 6 or the switching element 17 depending on the magnitude of the supply voltage to the outside and the voltage of the battery 19.
  • 5 is a flowchart showing still another embodiment of the procedure of detecting the battery voltage and the operation of the battery voltage output prohibiting means 33.
  • the procedure shown in FIG. 8 is executed by the control device 20 shown in FIG. 1 every time voltage is supplied from the battery 19 to the external device. It is assumed that the voltage of the battery 19 is detected by the control device 20 because it is necessary for other controls in the vehicle. Further, it is assumed that the supply voltage (output voltage) to the outside is determined by the vehicle system or can be selected from several types.
  • the output voltage value to the outside is read by the control device 20 in step 801. In subsequent step 802, it is determined whether or not the output voltage value to be output to the outside is higher than the voltage of the vehicle battery 19.
  • the control device 20 determines whether the relay 6 is normal or abnormal in step 803. Do.
  • the normality / abnormality of the relay 6 can be determined by performing the processing of Step 401 to Step 407 or the processing of Step 601 to Step 607 described above.
  • the control device 20 determines whether the switching element 17 is normal / abnormal in step 804. Make a decision.
  • the normality / abnormality of the switching element 17 can be determined by performing the processing of Step 501 to Step 507 or the processing of Step 701 to Step 707 described above.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un dispositif pour accessoire électrique de véhicule qui ne fournit pas une tension dépassant une tension de tenue à un dispositif externe. Un dispositif pour accessoire électrique de véhicule (25) commande un accessoire électrique (3) entraîné par une batterie de véhicule (19) et peut fournir une tension de batterie selon la tension de fonctionnement pour un dispositif externe. Un dispositif de commande (20) du dispositif pour accessoire électrique de véhicule (25) comporte au moins soit un premier moyen de détermination (31) permettant de déterminer l'anomalie d'un commutateur (6) disposé entre un circuit survolteur (22) et une batterie (19) soit un second moyen de détermination (32) permettant de déterminer l'anomalie d'un élément de commutation spécifique (17) dans le circuit survolteur (22), et un moyen d'inhibition de tension de sortie de batterie (33). Lors de l'alimentation d'une tension en provenance de la batterie (19) à l'extérieur, le dispositif de commande (20) fait fonctionner le moyen d'inhibition de tension de sortie de batterie (33) si une anomalie est déterminée par soit le premier moyen de détermination (31) soit le second moyen de détermination (32).
PCT/JP2012/067480 2011-09-06 2012-07-09 Dispositif pour accessoire électrique de véhicule WO2013035424A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-193640 2011-09-06
JP2011193640A JP2013055838A (ja) 2011-09-06 2011-09-06 車両用電動補機装置

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Publication number Priority date Publication date Assignee Title
JP5735050B2 (ja) 2013-06-28 2015-06-17 トヨタ自動車株式会社 車両および受電装置
KR102008746B1 (ko) * 2017-09-12 2019-08-12 현대오트론 주식회사 차량용 전력 제어 장치
KR102008747B1 (ko) * 2017-09-12 2019-08-12 현대오트론 주식회사 차량용 전력 제어 장치
JP2023070188A (ja) * 2021-11-08 2023-05-18 台達電子工業股▲ふん▼有限公司 モータ駆動機能と電池充放電機能とを有する電源統合システム

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JP2009154758A (ja) * 2007-12-27 2009-07-16 Jtekt Corp 電動パワーステアリング装置
JP2009171733A (ja) * 2008-01-16 2009-07-30 Toyota Motor Corp 車両の充電制御装置
JP2010213410A (ja) * 2009-03-09 2010-09-24 Fujitsu Ten Ltd 制御装置及び制御方法
JP2010256335A (ja) * 2009-04-03 2010-11-11 Sanyo Electric Co Ltd 電池システム、電動車両及び電池制御装置
JP2011200071A (ja) * 2010-03-23 2011-10-06 Toyota Motor Corp 車両の制御装置およびそれを搭載する車両
JP2012018912A (ja) * 2010-06-09 2012-01-26 Nissan Motor Co Ltd 充電制御装置及び方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009154758A (ja) * 2007-12-27 2009-07-16 Jtekt Corp 電動パワーステアリング装置
JP2009171733A (ja) * 2008-01-16 2009-07-30 Toyota Motor Corp 車両の充電制御装置
JP2010213410A (ja) * 2009-03-09 2010-09-24 Fujitsu Ten Ltd 制御装置及び制御方法
JP2010256335A (ja) * 2009-04-03 2010-11-11 Sanyo Electric Co Ltd 電池システム、電動車両及び電池制御装置
JP2011200071A (ja) * 2010-03-23 2011-10-06 Toyota Motor Corp 車両の制御装置およびそれを搭載する車両
JP2012018912A (ja) * 2010-06-09 2012-01-26 Nissan Motor Co Ltd 充電制御装置及び方法

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