WO2014156030A1 - 車両用電力装置 - Google Patents
車両用電力装置 Download PDFInfo
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- WO2014156030A1 WO2014156030A1 PCT/JP2014/001454 JP2014001454W WO2014156030A1 WO 2014156030 A1 WO2014156030 A1 WO 2014156030A1 JP 2014001454 W JP2014001454 W JP 2014001454W WO 2014156030 A1 WO2014156030 A1 WO 2014156030A1
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- power
- power conversion
- conversion circuit
- threshold
- connector
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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
- B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
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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
- B60L3/04—Cutting off the power supply under fault conditions
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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
- B60L53/10—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 the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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
- B60L53/10—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 the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
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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
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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
- B60L53/30—Constructional details of charging stations
- B60L53/305—Communication interfaces
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- 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
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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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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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
- B60L2250/00—Driver interactions
- B60L2250/16—Driver interactions by display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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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
- 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
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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
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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
- Y02T10/7072—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
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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
- Y02T90/14—Plug-in electric vehicles
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates generally to a vehicular power device, and more particularly to a vehicular power device that controls charging of a storage battery of an electric vehicle.
- a vehicle power device for charging an electric vehicle includes a power converter for outputting charging power for charging a storage battery, and one end of a charging cable is connected to the output of the power converter.
- the other end of the charging cable is connected to a connector, and the connector is detachably connected to an inlet provided to the electric vehicle. Then, the power converter supplies charging power to the storage battery of the electrically powered vehicle via the charging cable and the connector.
- the charging cable or connector may be excessively stressed and the charging cable or connector may be damaged.
- Patent Document 1 when stress is applied to the charging cable and the connector, the connection between the connector and the inlet is immediately released, and the user needs to perform the operation of connecting the connector to the inlet again. there were. The user had to reconnect the connector once connected to the inlet, which was inconvenient for the user.
- the present invention has been made in view of the above, and it is an object of the present invention to provide an electric power device for a vehicle which is easy for the user to use without excessive stress on the electric cable and connector.
- An electric power unit for a vehicle comprises: an electric power converter for outputting charging power for charging a storage battery mounted on an electric vehicle; an electric cable having one end connected to an output of the electric power converter; and the other end of the electric cable Provided at the joint where the connector is detachably connected to the inlet of the electric vehicle and the electric cable and the connector are connected to each other, and the joint is applied by the tension of the electric cable
- a detection unit that detects a force, and a notification unit that notifies an alarm to the user.
- the power converter has a power conversion circuit that generates and outputs the charging power, and a control unit that controls the operation of the power conversion circuit.
- the control unit starts output operation of the charging power by the power conversion circuit if the detected force is smaller than a first threshold, and the detection is performed when the power conversion circuit is outputting the charging power.
- a first threshold When the calculated force exceeds the first threshold, an alarm is notified from the notification unit, and the detected force exceeds the second threshold when the power conversion circuit is outputting the charging power. And stopping the output of the charging power by the power conversion circuit.
- the second threshold is greater than the first threshold.
- the vehicle power device includes a lock that prevents the connector from being detached from the inlet.
- the control unit maintains the lock state of the lock unit if the detected force is smaller than a third threshold, and the lock state of the lock unit if the detected force is greater than or equal to the third threshold. To release.
- the third threshold is greater than the second threshold.
- the vehicular power device preferably comprises a discharge circuit.
- the discharge circuit discharges the voltage of the connection pin of the connector before the lock portion releases the lock state if the detected force is equal to or greater than the third threshold.
- the vehicular power device preferably comprises a switch.
- the switch shuts off the supply path of the charging power when the lock state of the lock portion is released.
- the vehicle power device includes a biasing portion.
- the biasing portion biases the connector in a direction in which the connector is disengaged from the inlet when the locked state of the lock portion is released.
- the detection unit detects a bending stress applied to the joint.
- the power conversion circuit receives the discharge power of the storage battery through the connector and the electric cable, converts the discharge power, and outputs the power.
- the control unit starts power conversion of the discharged power by the power conversion circuit if the detected force is smaller than the first threshold, and the power conversion circuit performs power conversion of the discharged power. If the detected force becomes equal to or more than the first threshold value, an alarm is notified from the notification unit, and the detected force indicates that the power conversion circuit is performing the power conversion of the discharged power. If it becomes more than the second threshold, the power conversion of the discharged power by the power conversion circuit is stopped.
- the user can prevent the damage of the electric cable or the connector by changing the routing of the electric cable while continuing the power supply and reducing the bending stress applied to the joint. That is, there is an effect that it is possible to provide the power device for a vehicle which is easier for the user to be used than in the prior art without excessive stress being applied to the electric cable and the connector.
- FIG. 1 is a block diagram showing the configuration of a vehicular electric power apparatus according to a first embodiment. It is the schematic which shows the structure of the junction part vicinity of the electric cable of Embodiment 1, and a connector.
- FIG. 6 is an explanatory view showing the operation of the system of the first embodiment.
- FIG. 6 is a flowchart showing the operation of the system of the first embodiment.
- 5 is an explanatory view showing another operation of the system of the embodiment 1.
- FIG. FIG. 6 is a flowchart showing another operation of the system of the embodiment 1.
- It is a block diagram which shows the structure of the electric power apparatus for vehicles of the modification 1.
- FIG. It is the schematic which shows the structure of the junction part vicinity of the electric cable of a modification 2, and a connector.
- FIG. 6 is a block diagram showing the configuration of a vehicular electric power apparatus according to a second embodiment.
- FIG. 7 is a flowchart showing the operation of the system of the second embodiment.
- FIG. 1 shows the configuration of a vehicle electric power apparatus (charger) 100 according to the present embodiment.
- Vehicle electric power apparatus 100 supplies charging power of storage battery 21 mounted on electrically powered vehicle 101 such as an electric vehicle (EV) or a plug-in hybrid vehicle (PHEV) to charge storage battery 21.
- EV electric vehicle
- PHEV plug-in hybrid vehicle
- the vehicular power device 100 includes a power converter 1, an electric cable 2, and a connector 3.
- the power converter 1 includes a power conversion circuit 1a, a control unit 1b, an operation unit 1c, a display unit 1d, and an audio output unit 1e.
- the operation of the power conversion circuit 1a is controlled by the control unit 1b to generate direct current power using commercial power as a power supply, and output the direct current power as charging power.
- One end of the electric cable 2 is connected to the output of the power conversion circuit 1 a, and the other end of the electric cable 2 is led out of the power converter 1.
- a connector 3 is provided at the other end of the electric cable 2, and the connector 3 is detachably connected to an inlet 22 provided on the outer surface of the electric vehicle 101.
- the inlet 22 is electrically connected to a charging path (not shown) provided in the electric vehicle 101 for charging the storage battery 21.
- power converter 1 can charge storage battery 21 of electrically powered vehicle 101 by supplying the charging power generated by power conversion circuit 1 a through electric cable 2 and connector 3.
- the electric cable 2 is a power supply line for supplying charging power from the power conversion circuit 1a to the storage battery 21, and a signal line for transmitting a control signal for controlling lock / unlock of the lock unit 3b described later by the control unit 1b. have.
- the joint 5 is formed by a bush.
- the connector 3 includes a latch portion 3 a configured by a locking claw or the like that is mechanically fixed to the inlet 22. And the connector 3 is provided with the lock part 3b.
- the lock portion 3b is so designed that the latch state of the latch portion 3a is released by artificial operation of the latch portion 3a or the tensile force of the electric cable 2 during charging so that the connector 3 is not detached from the inlet 22. Electrically lock the latch state.
- the lock portion 3 b is provided with a solenoid valve, and when the solenoid valve is driven, the lock / unlock (release of the lock state) is switched. And the control part 1b drives a solenoid valve using the signal wire
- the joint portion 5 between the electric cable 2 and the connector 3 is provided with a stress detection portion 4 for detecting bending stress applied to the joint portion 5 by the tension of the electric cable 2.
- the stress detection unit 4 is configured of a plurality of piezoelectric elements provided in the joint unit 5, and each of the piezoelectric elements generates a voltage according to the bending stress applied to the joint unit 5. Then, the stress detection unit 4 outputs a signal (stress detection signal) corresponding to the bending stress to the control unit 1 b via the signal line in the electric cable 2.
- the control unit 1 b controls the power conversion circuit 1 a based on the stress detection signal from the stress detection unit 4.
- the user connects the connector 3 to the inlet 22 of the electric vehicle 101, and after setting the latch portion 3a in the latched state, performs a charge start operation using the operation portion 1c.
- the control unit 1b that has detected the charging start operation switches the lock unit 3b to the locked state, and performs the process shown in FIG. 3 and FIG.
- the control unit 1b starts the bending stress detection operation using the stress detection unit 4 (S1), and the bending stress applied to the joint 5 is
- the threshold value K1 first threshold value
- control unit 1b permits the output operation of the charging power by power conversion circuit 1a.
- the control unit 1b prohibits the output operation of the charging power by the power conversion circuit 1a.
- control unit 1b When the control unit 1b permits the output operation of the charging power, after executing a predetermined communication sequence with the electric vehicle 101, the control unit 1b controls the power conversion circuit 1a and outputs the charging power from the power conversion circuit 1a.
- the storage battery 21 is charged and charged (S3).
- the control unit 1b displays that the bending stress is large on the display unit 1d configured by a liquid crystal screen or the like, and the bending stress is larger from the sound output unit 1e configured by a speaker Give voice notification of that. That is, the control unit 1 b uses the display unit 1 d and the audio output unit 1 e to change the routing of the electric cable 2 and the stop position of the electric vehicle 101 to reduce bending stress applied to the joint unit 5. Prompt. Then, after the bending stress applied to the joint portion 5 by the user is reduced, the charge start operation is performed again using the operation portion 1 c.
- the notification operation by the display unit 1 d may use any of message display for displaying characters, light emission display by lighting or blinking of a light source, or the like.
- control unit 1b bends the junction 5 based on the stress detection signal from the stress detection unit 4. It is monitoring stress.
- the controller 1b compares the bending stress applied to the joint 5 with the threshold value K1 (S4). Then, it is assumed that the bending stress applied to the joint 5 becomes equal to or more than the threshold value K1 due to the change in the routing of the electric cable 2 and the movement of the electric vehicle 101. In this case, the control unit 1b performs alarm notification to the user using the display unit 1d and the voice output unit 1e while continuing the charge power output operation of the power conversion circuit 1a (S5). That is, the display unit 1d displays that the bending stress is large, and the voice output unit 1e performs voice notification that the bending stress is large.
- the display unit 1 d and the audio output unit 1 e correspond to a notification unit of the present invention. Further, any one of the display unit 1d and the audio output unit 1e may correspond to the notification unit of the present invention.
- control unit 1b compares the bending stress applied to the joint 5 with the threshold value K2 (second threshold value) (S6). Note that there is a relationship of threshold K2> threshold K1. Then, when the bending stress further increases and the bending stress becomes equal to or more than the threshold value K2, the control unit 1b stops the output of the charging power by the power conversion circuit 1a (S7).
- the control unit 1b does not damage the electric cable 2 or the connector 3 in the range of bending stress “K1 to K2” for the user.
- Alarm notification only time t2 to t3 in FIG. 3.
- the user can recognize that the bending stress applied to the joint 5 is large without the connection between the connector 3 and the inlet 22 being immediately released as in the prior art.
- the user can prevent damage to the electric cable 2 or the connector 3 by changing the routing of the electric cable 2 while continuing charging and reducing the bending stress applied to the joint 5. That is, the power device 100 for a vehicle does not apply excessive stress to the electric cable 2 and the connector 3 and is more convenient for the user than in the prior art.
- control unit 1 b When the bending stress applied to joint 5 further increases, control unit 1 b outputs the charging power by power conversion circuit 1 a in the range “K2 or more” of bending stress that may damage electric cable 2 or connector 3. Are stopped (after time t3 in FIG. 3). Therefore, damage to the electrical cable 2 or the connector 3 or the disconnection of the connector 3 from the inlet 22 can be prevented from occurring during the output of the charging power.
- control unit 1 b that has detected the charge start operation may further perform the control operation shown in FIGS. 5 and 6 based on the stress detection signal from the stress detection unit 4.
- the control unit 1b stops the output of the charging power by the power conversion circuit 1a in step S7, it is assumed that the bending stress applied to the joint portion 5 further increases and becomes equal to or more than the threshold K3 (S8). In this case, the control unit 1b releases the lock state of the lock unit 3b and sets it in the unlocked state (S9) (after time t4 in FIG. 5). Therefore, even if the bending stress applied to the joint portion 5 is further increased, the latch state of the latch portion 3 a is released by the tension of the electric cable 2, and the connector 3 is detached from the inlet 22. Thus, the vehicular power device 100 can prevent the damage of the electric cable 2 or the connector 3 and the collapse of the power converter 1.
- the power converter 1A may be provided with a discharge circuit 11 as shown in FIG. 7 in order to discharge the voltage between the connection pins of the connector 3 before releasing the lock state of the lock portion 3b.
- the connection pin of the connector 3 detached from the inlet 22 may not be exposed, and the user may not be in direct contact with the connection pin. Thereby, the electric power apparatus 100 for vehicles can prevent the electric shock by a user's touching the connecting pin of the connector 3 accidentally.
- a switch 3c may be provided inside the connector 3B, which shuts off the supply path of charging power when the lock state of the lock portion 3b is released.
- the control unit 1b may be configured to perform on / off control of the switch 3c or may be configured to perform on / off control of the switch 3c by the operation of the lock unit 3b.
- the vehicular power device 100 can prevent an electric shock due to the user accidentally touching the connection pin of the connector 3 after releasing the lock state of the lock portion 3b.
- the connector 3 is disengaged, it is possible to prevent the occurrence of sparks.
- the vehicle power device 100C biases the biasing portion 31 for biasing the connector 3 so that the connector 3 is automatically detached from the inlet 22 when the lock state of the lock portion 3b is released. You may provide.
- the biasing unit 31 biases the connector 3 in a direction in which the connector 3 is detached from the inlet 22 using, for example, a spring force, an electromagnetic repulsive force, a pressure of air, a thermal expansion force or the like.
- the vehicle electric power apparatus 100C causes the connector 3 to be detached from the inlet 22 by the biasing portion 31, so that damage to the electric cable 2 or the connector 3 and collapse of the power converter 1 can be further prevented.
- the power converter 1 As described above, in the vehicle power device 100 of the first embodiment, the power converter 1, the electric cable 2, the connector 3, the stress detection unit 4 (detection unit), the display unit 1d, and the voice output unit 1e (notification unit) And
- the power converter 1 outputs charging power for charging a storage battery mounted on the electric vehicle.
- the electric cable 2 is connected at one end to the output of the power converter 1.
- the connector 3 is provided at the other end of the electric cable 2 and is detachably connected to the inlet of the electric vehicle.
- the stress detection unit 4 is provided at the joint 5 where the electric cable 2 and the connector 3 are connected to each other, and detects the force applied to the joint 5 by the tension of the electric cable 2.
- the display unit 1d and the voice output unit 1e notify the user of an alarm.
- the power converter 1 includes a power conversion circuit 1a that generates and outputs charging power, and a control unit 1b that controls the operation of the power conversion circuit 1a. If the force detected by the stress detection unit 4 is smaller than the first threshold value, the control unit 1 b starts an operation of outputting the charging power by the power conversion circuit 1 a. Control unit 1b notifies an alarm from display unit 1d and voice output unit 1e if the force detected by stress detection unit 4 becomes greater than or equal to the first threshold when power conversion circuit 1a is outputting charging power. . If the power detected by the stress detection unit 4 becomes equal to or higher than the second threshold when the power conversion circuit 1a outputs the charging power, the output of the charging power by the power conversion circuit 1a is stopped.
- the second threshold is a value larger than the first threshold.
- the vehicle power device 100 may be provided with a lock portion 3 b that prevents the connector 3 from being detached from the inlet. If the force detected by the stress detection unit 4 is smaller than the third threshold, the control unit 1 b maintains the locked state of the lock unit 3 b, and if the force detected by the stress detection unit 4 is equal to or greater than the third threshold, The lock state of the lock portion 3b is released.
- the third threshold is a value larger than the second threshold.
- the vehicle power device 100 discharges the voltage of the connection pin of the connector 3 before the lock unit 3b releases the lock state.
- the discharge circuit 11 may be provided.
- the vehicle power device 100 may include the switch 3c that shuts off the supply path of the charging power when the lock state of the lock portion 3b is released.
- the vehicle power device 100 may be provided with a biasing portion 31 for biasing the connector in a direction in which the connector is detached from the inlet when the lock state of the lock portion 3b is released.
- the vehicular electric power unit 100 including the biasing unit 31 corresponds to the vehicular electric power unit 100C shown in the third modification.
- the stress detection unit 4 may detect a bending stress applied to the joint unit 5.
- FIG. 1 The configuration of a vehicle electric power apparatus (charger / discharger) 100D of the present embodiment is shown in FIG.
- the same components as those in Embodiment 1 and Modifications 1 to 3 are assigned the same reference numerals and descriptions thereof will be omitted.
- the power converter 1D includes a bidirectional power conversion circuit 1f in place of the power conversion circuit 1a. Similar to the power conversion circuit 1a, the bidirectional power conversion circuit 1f has a function of outputting the charging power through the electric cable 2 and the connector 3 to charge the storage battery 21. Furthermore, the bidirectional power conversion circuit 1f receives DC power (discharge power) supplied from the storage battery 21 of the electric vehicle 101 through the electric cable 2 and the connector 3, and discharges this discharge power to a predetermined voltage (AC or DC). ), And also has the function of supplying a load (not shown).
- bidirectional power conversion circuit 1f is capable of bidirectional power conversion (charging / discharging of storage battery 21) for charging / discharging storage battery 21 via electric cable 2 and connector 3, and the operation of bidirectional power conversion circuit 1f Is controlled by the controller 1b.
- the charging operation of the storage battery 21 is the same as that of the first embodiment, and thus the description thereof is omitted. Hereinafter, the discharging operation of the storage battery 21 will be described.
- the user connects the connector 3 to the inlet 22 of the electric vehicle 101, and after setting the latch portion 3a in the latched state, performs a discharge start operation using the operation portion 1c.
- the control unit 1b that has detected the discharge start operation switches the lock unit 3b to the lock state, and performs the process shown in FIG.
- the control unit 1b starts the bending stress detection operation using the stress detection unit 4 (S11), and compares the bending stress applied to the joint 5 with the threshold value K1 (S12) . If the bending stress is smaller than the threshold value K1, the control unit 1b permits the power conversion operation of the discharge power by the bidirectional power conversion circuit 1f. Further, when the bending stress is equal to or higher than the threshold value K1, the control unit 1b prohibits the power conversion operation of the discharge power by the bidirectional power conversion circuit 1f.
- control unit 1b When the control unit 1b permits the power conversion operation of discharge power, after executing a predetermined communication sequence with the electric vehicle 101, the control unit 1b controls the bidirectional power conversion circuit 1f to convert the power of the discharge power. Perform (S13).
- the control unit 1b When the control unit 1b prohibits the power conversion operation of the discharge power, the control unit 1b displays that the bending stress is large on the display unit 1d, and notifies the voice output unit 1e that the bending stress is large. That is, the control unit 1 b uses the display unit 1 d and the audio output unit 1 e to change the routing of the electric cable 2 and the stop position of the electric vehicle 101 to reduce bending stress applied to the joint unit 5. Prompt. Then, after the bending stress applied to the joint portion 5 by the user is reduced, the discharge start operation is performed again using the operation portion 1 c. Note that the notification operation by the display unit 1 d may use any of message display for displaying characters, light emission display by lighting or blinking of a light source, or the like.
- control unit 1b performs the junction based on the stress detection signal from the stress detection unit 4.
- the bending stress applied to 5 is monitored.
- the controller 1b compares the bending stress applied to the joint 5 with the threshold value K1 (S14). Then, it is assumed that the bending stress applied to the joint 5 becomes equal to or more than the threshold value K1 due to the change in the routing of the electric cable 2 and the movement of the electric vehicle 101. In this case, while continuing the power conversion operation by the bidirectional power conversion circuit 1f, the control unit 1b performs alarm notification to the user using the display unit 1d and the audio output unit 1e (S15). That is, the display unit 1d displays that the bending stress is large, and the voice output unit 1e performs voice notification that the bending stress is large.
- the controller 1b compares the bending stress applied to the joint 5 with the threshold value K2 (S16). Then, when the bending stress is further increased and the bending stress becomes equal to or more than the threshold value K2, the control unit 1b stops the power conversion operation of the discharge power by the bidirectional power conversion circuit 1f (S17).
- the control unit 1b does not damage the electric cable 2 or the connector 3 in the range of bending stress “K1 to K2” for the user. Alarm notification only.
- the user can recognize that the bending stress applied to the joint 5 is large without the connection between the connector 3 and the inlet 22 being immediately released as in the prior art.
- the electric power device 100D for a vehicle is a device that is easy for the user to be used in comparison with the related art without excessive stress being applied to the electric cable 2 and the connector 3.
- control portion 1 b discharges the discharge power by bidirectional power conversion circuit 1 f in the range “K2 or more” of bending stress that may damage electric cable 2 or connector 3. Stop the power conversion operation of Therefore, damage to the electrical cable 2 or the connector 3 or the disconnection of the connector 3 from the inlet 22 can be prevented from occurring during power conversion of discharge power.
- the control unit 1b stops the power conversion operation of the discharge power by the bidirectional power conversion circuit 1f in step S17, the bending stress applied to the junction 5 further increases and becomes equal to or higher than the threshold K3 (S18) ). In this case, the control unit 1b releases the lock state of the lock unit 3b and sets it in the unlocked state (S19). Therefore, even if the bending stress applied to the joint portion 5 is further increased, the latch state of the latch portion 3 a is released by the tension of the electric cable 2, and the connector 3 is detached from the inlet 22. Thereby, electric power apparatus 100D for vehicles can prevent damage to electric cable 2 or connector 3, and collapse of power converter 1D.
- the bidirectional power conversion circuit 1 f (power conversion circuit) of this embodiment receives the discharge power of the storage battery through the connector 3 and the electric cable 2, converts the discharge power into power, and outputs the power. It is also good. If the force detected by the stress detection unit 4 (detection unit) is smaller than the first threshold, the control unit 1 b starts power conversion of discharge power by the bidirectional power conversion circuit 1 f. If the force detected by the stress detection unit 4 while the bidirectional power conversion circuit 1f is performing the power conversion of the discharge power becomes the first threshold or more, the control unit 1b notifies an alarm from the notification unit. If the force detected by the stress detection unit 4 when the bidirectional power conversion circuit 1f performs power conversion of discharged power becomes equal to or greater than the second threshold, the control unit 1b discharges power by the bidirectional power conversion circuit 1f. Stop the power conversion of
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Abstract
Description
図1は、本実施形態の車両用電力装置(充電器)100の構成を示す。車両用電力装置100は、電気自動車(EV)やプラグインハイブリッド車(PHEV)などの電動車両101に搭載している蓄電池21の充電電力を供給して、蓄電池21を充電する。
電力変換器1Aは、ロック部3bのロック状態を解除する前に、コネクタ3の接続ピン間の電圧を放電させるために、図7に示すように放電回路11を設けてもよい。あるいは、インレット22から離脱したコネクタ3の接続ピンが露出せず、ユーザが接続ピンに直接触ることができない構成としてもよい。これにより、車両用電力装置100は、ユーザがコネクタ3の接続ピンに誤って触れることによる感電を防ぐことができる。
図8に示すように、ロック部3bのロック状態が解除されると充電電力の供給路を遮断する開閉器3cがコネクタ3Bの内部に設けられてもよい。なお、制御部1bが開閉器3cのオン・オフ制御を行う構成、ロック部3bの操作によって開閉器3cのオン・オフ制御を行う構成のいずれでもよい。これにより、車両用電力装置100は、ロック部3bのロック状態の解除後、ユーザがコネクタ3の接続ピンに誤って触れることによる感電を防ぐことができる。また、コネクタ3を離脱させるときにスパークの発生を防ぐことができる。
車両用電力装置100Cは、図9に示すように、ロック部3bのロック状態が解除されるとコネクタ3がインレット22から自動的に離脱するように、コネクタ3を付勢する付勢部31を設けてもよい。付勢部31は、例えば、ばね力、電磁反発力、空気の圧力、熱膨張力等を用いて、コネクタ3がインレット22から離脱する方向に力を付勢する。これにより、車両用電力装置100Cは、付勢部31により、コネクタ3をインレット22から離脱させるので、電気ケーブル2またはコネクタ3の損傷、および電力変換器1の倒壊を一層防止できる。
以上説明したように、実施形態1の車両用電力装置100は、電力変換器1と電気ケーブル2とコネクタ3と応力検出部4(検出部)と表示部1dおよび音声出力部1e(報知部)とを備える。電力変換器1は電動車両に搭載された蓄電池を充電する充電電力を出力する。電気ケーブル2は電力変換器1の出力に一端を接続している。コネクタ3は電気ケーブル2の他端に設けられて、電動車両のインレットに着脱可能に接続している。応力検出部4は電気ケーブル2とコネクタ3とが互いに接続している接合部5に設けられて、電気ケーブル2の張力によって接合部5に加わる力を検出する。表示部1dおよび音声出力部1eはユーザに対して警報を報知する。電力変換器1は、充電電力を生成して出力する電力変換回路1aと、電力変換回路1aの動作を制御する制御部1bとを有する。制御部1bは、応力検出部4が検出した力が第1の閾値より小さければ、電力変換回路1aによる充電電力の出力動作を開始する。制御部1bは、電力変換回路1aが充電電力を出力しているときに応力検出部4が検出した力が第1の閾値以上になれば、表示部1dおよび音声出力部1eから警報を報知する。電力変換回路1aが充電電力を出力しているときに応力検出部4が検出した力が第2の閾値以上になれば、電力変換回路1aによる充電電力の出力を停止させる。第2の閾値は前記第1の閾値より大きい値である。
本実施形態の車両用電力装置(充放電器)100Dの構成を図10に示す。なお、実施形態1および変形例1から変形例3と同様の構成には同一の符号を付して説明は省略する。
以上説明したように、本実施形態の双方向電力変換回路1f(電力変換回路)は、蓄電池の放電電力をコネクタ3および電気ケーブル2を介して入力され、放電電力を電力変換して出力するとしてもよい。制御部1bは、応力検出部4(検出部)が検出した力が第1の閾値より小さければ、双方向電力変換回路1fによる放電電力の電力変換を開始する。制御部1bは、双方向電力変換回路1fが放電電力の電力変換を行っているときに応力検出部4が検出した力が第1の閾値以上になれば、報知部から警報を報知する。制御部1bは、双方向電力変換回路1fが放電電力の電力変換を行っているときに応力検出部4が検出した力が第2の閾値以上になれば、双方向電力変換回路1fによる放電電力の電力変換を停止させる。
Claims (7)
- 電動車両に搭載された蓄電池を充電する充電電力を出力する電力変換器と、
前記電力変換器の出力に一端を接続した電気ケーブルと、
前記電気ケーブルの他端に設けられて、前記電動車両のインレットに着脱可能に接続するコネクタと、
前記電気ケーブルと前記コネクタとが互いに接続している接合部に設けられて、前記電気ケーブルの張力によって前記接合部に加わる力を検出する検出部と、
ユーザに対して警報を報知する報知部とを備え、
前記電力変換器は、前記充電電力を生成して出力する電力変換回路と、前記電力変換回路の動作を制御する制御部とを有し、
前記制御部は、前記検出した力が第1の閾値より小さければ、前記電力変換回路による前記充電電力の出力動作を開始し、前記電力変換回路が前記充電電力を出力しているときに前記検出した力が前記第1の閾値以上になれば、前記報知部から警報を報知し、前記電力変換回路が前記充電電力を出力しているときに前記検出した力が第2の閾値以上になれば、前記電力変換回路による前記充電電力の出力を停止させ、前記第2の閾値は前記第1の閾値より大きい
ことを特徴とする車両用電力装置。 - 前記コネクタが前記インレットから離脱することを阻止するロック部を備え、
前記制御部は、前記検出した力が第3の閾値より小さければ、前記ロック部のロック状態を維持し、前記検出した力が前記第3の閾値以上であれば、前記ロック部のロック状態を解除し、前記第3の閾値は前記第2の閾値より大きい
ことを特徴とする請求項1記載の車両用電力装置。 - 前記検出した力が前記第3の閾値以上であれば、前記ロック部がロック状態を解除するに先立って、前記コネクタの接続ピンの電圧を放電させる放電回路を備える
ことを特徴とする請求項2記載の車両電力装置。 - 前記ロック部のロック状態が解除されると、前記充電電力の供給路を遮断する開閉器を備える
ことを特徴とする請求項2記載の車両電力装置。 - 前記ロック部のロック状態が解除されると、前記コネクタに対して、このコネクタが前記インレットから離脱する方向に力を付勢する付勢部を備える
ことを特徴とする請求項2記載の車両電力装置。 - 前記検出部は、前記接合部に加わる曲げ応力を検出することを特徴とする請求項1乃至5いずれか記載の車両用電力装置。
- 前記電力変換回路は、前記蓄電池の放電電力を前記コネクタおよび前記電気ケーブルを介して入力され、前記放電電力を電力変換して出力し、
前記制御部は、前記検出した力が前記第1の閾値より小さければ、前記電力変換回路による前記放電電力の電力変換を開始し、前記電力変換回路が前記放電電力の電力変換を行っているときに前記検出した力が前記第1の閾値以上になれば、前記報知部から警報を報知し、前記電力変換回路が前記放電電力の電力変換を行っているときに前記検出した力が前記第2の閾値以上になれば、前記電力変換回路による前記放電電力の電力変換を停止させる
ことを特徴とする請求項1乃至6いずれか記載の車両用電力装置。
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CN201480018042.6A CN105075057A (zh) | 2013-03-27 | 2014-03-14 | 车辆用电力装置 |
US14/780,516 US20160059718A1 (en) | 2013-03-27 | 2014-03-14 | Vehicle power device |
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2014
- 2014-03-14 EP EP14774000.5A patent/EP2980955A4/en not_active Withdrawn
- 2014-03-14 CN CN201480018042.6A patent/CN105075057A/zh active Pending
- 2014-03-14 US US14/780,516 patent/US20160059718A1/en not_active Abandoned
- 2014-03-14 WO PCT/JP2014/001454 patent/WO2014156030A1/ja active Application Filing
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3081427A1 (en) * | 2015-04-10 | 2016-10-19 | Toyota Jidosha Kabushiki Kaisha | Power supply device of vehicle |
CN106042947A (zh) * | 2015-04-10 | 2016-10-26 | 丰田自动车株式会社 | 车辆的电源装置 |
CN106042947B (zh) * | 2015-04-10 | 2018-08-28 | 丰田自动车株式会社 | 车辆的电源装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2980955A4 (en) | 2016-05-25 |
CN105075057A (zh) | 2015-11-18 |
JP2014193039A (ja) | 2014-10-06 |
US20160059718A1 (en) | 2016-03-03 |
EP2980955A1 (en) | 2016-02-03 |
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