WO2012104703A1 - Dispositif de commande d'alimentation électrique - Google Patents

Dispositif de commande d'alimentation électrique Download PDF

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Publication number
WO2012104703A1
WO2012104703A1 PCT/IB2012/000137 IB2012000137W WO2012104703A1 WO 2012104703 A1 WO2012104703 A1 WO 2012104703A1 IB 2012000137 W IB2012000137 W IB 2012000137W WO 2012104703 A1 WO2012104703 A1 WO 2012104703A1
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WO
WIPO (PCT)
Prior art keywords
electric leakage
relay
electric
electric vehicle
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2012/000137
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English (en)
Inventor
Naoki Fukuo
Tatsuya Mukai
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Panasonic Corp
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Panasonic Corp
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Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of WO2012104703A1 publication Critical patent/WO2012104703A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial imbalance for other protection or monitoring reasons or remote control
    • H02H3/335—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial imbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • 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
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • 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
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • 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 to a power feeding control device .
  • the power feeding control device which controls power feeding from an external power source to an electric vehicle.
  • the power feeding control device includes a power side plug connected to the external power source such as a commercial AC power source, and a vehicle side plug connected to an electric vehicle, the power side plug being connected to the vehicle side plug through a cable (see, e.g., Japanese Patent Application Publication No. 2009-240053) .
  • the power feeding control device includes a relay disposed in a power supply path for electrically connecting between both of the plugs, and an electric leakage detection circuit for detecting whether or not an electric leakage occurs.
  • the relay is opened to thereby shut off the power supply to the electric vehicle .
  • an electric leakage detection circuit is checked whenever an electric power is supplied to the electric vehicle. Specifically, when the power feeding control device is connected to the electric vehicle and receives a charge enable signal from the electric vehicle, the power feeding control device closes the relay and simulates a virtual electric leakage to check whether or not the leakage detection circuit operates normally.
  • the leakage detection circuit When detecting an electric leakage, the leakage detection circuit opens the relay and then checks whether or not the relay is fusion-bonded. Herein, when it is found that the leakage detection performs normally and the relay has no fusion-bonding, the power feeding control device starts feeding electric power to the electric vehicle by closing the relay.
  • the relay incorporated in the power feeding control device is opened and closed twice when the electric vehicle is charged once.
  • a lifetime of the power feeding control device is shortened, which is undesirable.
  • the present invention provides a power feeding control device having a long lifetime.
  • a power feeding control device having a power supply path from an external power source to an electric storage device installed in the electric vehicle, the power supply control device including: a relay connected in the power supply path; an electric leakage detection part which detects an electric leakage in the power supply path and makes the relay opened; an electric leakage generation part that simulates the electric leakage in the power supply path; and a control part that controls opening and closing of the relay in response to a state notification signal inputted to the control part from the electric vehicle and controls the electric leakage generation part to simulate the electric leakage when power supply to the electric vehicle is stopped.
  • the power feeding control device further includes a signal input part to which the state notification signal for notifying an operational ' state from the electric vehicle is inputted, wherein the control part controls the electric leakage generation part to simulate the electric leakage when the power supply to the electric vehicle is stopped and a charge completion signal for notifying charge completion is inputted to the signal input part.
  • the power feeding control device may further includes a plug detachably connected to a receptacle which is provided in the electric vehicle, and a signal input part to which the state notification signal for notifying the operational state from the electric vehicle is inputted via the plug, wherein the control part controls the electric leakage generation part to simulate the electric leakage when the control part determines that the power supply to the electric vehicle is stopped because the plug is disconnected by receiving no state notification signal.
  • the power feeding control device may further includes an operation stop part that outputs, to the control part, a stop instruction for forcibly stopping the power supply to the electric vehicle in response to user's manipulation, wherein the control part controls the electric leakage generation part to simulate the electric leakage when the power supply to the electric vehicle is stopped based on the stop instruction from the operation stop part.
  • the power feeding control device further includes a fusion-bonding detection part having a capacitor for smoothing a voltage at secondary side of the relay, which detects whether or not the relay is fusion-bonded based on a voltage across the capacitor when the relay is opened, and a discharge circuit part which provides a discharging path to discharge charges stored in the capacitor for a period of time when the electric leakage is simulated by the electric leakage generation part.
  • the power feeding control device further includes a plug detachably connected to a receptacle provided at the electric vehicle, and a signal input part to which the state notification signal for notifying the operational state from the electric vehicle is inputted via the plug, wherein, when a connection confirmation signal for informing that the plug has been connected to the receptacle is inputted to the signal input part as the state notification signal, the control part controls the electric leakage generation part to simulate the electric leakage in the state where the relay is opened before the power is supplied to the electric vehicle.
  • the power feeding control device may further includes a fusion-bonding detection part which detects whether or not the relay is fusion-bonded based on a voltage at the secondary side of the relay when the relay is opened, and an information part for informing a fusion-bonding occurrence in the relay when the fusion-bonding detection part detects that the relay is fusion-bonded and informing an abnormal operation of the electric leakage detection part in the case where no electric leakage detection signal is inputted from the electric leakage detection part when the electric leakage occurs.
  • a fusion-bonding detection part which detects whether or not the relay is fusion-bonded based on a voltage at the secondary side of the relay when the relay is opened
  • an information part for informing a fusion-bonding occurrence in the relay when the fusion-bonding detection part detects that the relay is fusion-bonded and informing an abnormal operation of the electric leakage detection part in the case where no electric leakage detection signal is inputted from the electric leakage detection part when the electric leakage occurs.
  • Fig. 1 is a schematic circuit diagram showing a power feeding control device in accordance with an embodiment of the present invention,-
  • Fig. 2 is a circuit diagram of L-side and N-side voltage detectors of the power feeding control device shown in Fig. 1;
  • Fig. 3 is a perspective view representing an appearance of the power feeding control device in accordance with the embodiment ;
  • Fig. 4 is a flow chart for describing an operation of the power feeding control device in accordance with the embodiment
  • Figs. 5A to 5C are flow charts for describing an operation of the power feeding control device in accordance with the embodiment ;
  • Fig. 6 is a timing chart for explaining detection operations of electric leakage and relay fusion-bonding
  • Fig. 7 is a schematic circuit diagram showing a modification in accordance with another embodiment of the present invention.
  • Fig. 8 is a timing chart for explaining an operation of another embodiment .
  • Fig. 9 is a flow chart for explaining an operation of another embodiment
  • Fig. 10 is timing chart for explaining an operation of the embodiment .
  • Fig. 11 is a schematic block diagram for illustrating another modification of the embodiment.
  • the power feeding control device 1 of the present embodiment includes a power supply path from a power source (not shown) , e.g. , a commercial AC power source, to an electric storage device provided in an electric vehicle 100, and is used for controlling a power supply to the electric storage device.
  • a power source e.g. , a commercial AC power source
  • the electric vehicle 100 includes an electric storage device 102 having a secondary battery such as a lithium-ion battery; and a charging circuit 103 which receives power supply from the outside via a receptacle 101 to charge the electric storage device 102.
  • the electric vehicle 100 is driven by an electric power stored in the electric storage device 102, and may be an electric automobile, a plug-in hybrid vehicle, a fuel-cell vehicle or the like.
  • Fig. 3 shows an external perspective view of the power feeding control device 1.
  • the power feeding control device 1 includes a body part 2 having an elongated rectangular parallelepiped shape for accommodating a circuit part of the power feeding control device shown in Fig. 1 and described below.
  • the body part 2 has a body 3 formed of a synthetic resin mold product which has a box-like shape and an opening, and a cover 4 formed of a synthetic resin product for covering the opening of the body 3.
  • the body 3 and the cover 4 are joined with conventionally known joint means, e.g., a screw or the like.
  • a power source side plug PI which is detachably connected to a receptacle (not shown) of the commercial AC power source, is connected to a cable CB1 extending from one end in a longitudinal direction of the body part 2.
  • a vehicle side plug P2 which is detachably connected to a receptacle 101 of the electric vehicle 100, is connected to a cable CB2 extending from the other end in the long"itudinal direction of the body part 2.
  • a printed circuit board (not shown) on which a circuit shown in Figs. 1 and 2, described below, is formed.
  • a front surface of the body part 2 i.e. , a front surface of the cover 4)
  • an electric leakage test button Bl for testing an electric leakage breaking operation and an operation stop button B2 for forcibly stopping the power supply to the electric vehicle 100 are provided side by side, which are operable from outside the body part 2.
  • a power lamp LP1 lit on when the power feeding control device 1 is powered from the commercial AC power source; and an error lamp LP2 lit on to inform a user that an abnormal operation in an electric leakage detection part 22 and a relay RY1 is detected.
  • a flexible light-transmitting resin label 5 is attached on the front surface of the body part 2 to cover the buttons Bl, B2, and the lamps LP1, LP2.
  • characters and graphic symbols are provided so as to represent usage or the like of the respective buttons Bl, B2, and lamps LP1, LP2.
  • the power feeding control device 1 is provided in between an external power source (a commercial AC power source) and the electric vehicle 100, and includes a voltage side line LI serving as a conductive line for a voltage side electrode (L-phase) , a ground side line L2 serving as a conductive line for a ground side electrode (N-phase) , and a ground line L3 serving as a conductive line for a ground.
  • an external power source a commercial AC power source
  • L-phase voltage side electrode
  • L2 ground side line L2 serving as a conductive line for a ground side electrode (N-phase)
  • a ground line L3 serving as a conductive line for a ground.
  • the power feeding control device 1 includes the relay RY1, a control part 20, a power supply detection part 21, the electric leakage detection part 22, an L-side voltage detector 23, an N-side voltage detector 24, a relay driving unit 25, a signal input part 26, a signal output part 27, and an electric leakage generation part 28.
  • the relay RY1 has normally open contacts respectively inserted into the voltage side line LI and the ground side line L2, and turns on and off the power supply from the power source side plug PI to the vehicle side plug P2.
  • the control part 20 includes an integrated circuit (IC) to thereby control the entire power feeding control device 1.
  • the power supply detection part 21 is interposed between the relay RY1 and the power source side plug PI and detects a zero-cross in a voltage generated between the power side line LI and the ground side line L2 to check whether or not an electric power is supplied from the commercial AC power source.
  • the electric leakage detection part 22 detects an electric leakage in the power supply path to the electric vehicle 100 (including a circuit of the electric vehicle 100 side) based on an output of a zero-phase current transformer 22a in which the power side line LI and the ground side line L2 passes through a core thereof .
  • a current flows in a secondary side of the zero-phase current transformer 22a corresponding to the imbalance current .
  • the electric leakage detection part 22 detects the electric leakage based on an output of the secondary side of the zero-phase current transformer 22a .
  • the electric leakage detection part 22 outputs an electric leakage detection signal to an input terminal PI1 of the control part 20 and makes the relay RY1 opened.
  • the L-side voltage detector 23 detects a voltage generated on the power side line LI in between the relay RY1 and the vehicle side plug P2 (i.e., a secondary side of the relay RY1) .
  • the N-side voltage detector 24 detects a voltage generated on the ground side line L2 in between the relay RY1 and the vehicle side plug P2 (i.e., the secondary side of the relay RY1) .
  • the relay driving unit 25 opens or closes the relay RY1 in response to a control signal inputted from the control part 20 and a signal from the electric leakage detection part 22.
  • the signal input part 26 is connected to the electric vehicle 100 via a conductive line L4 (hereinafter, referred to as "signal line") provided separately from the conductive lines LI to L3.
  • the signal input part 26 receives a so-called CPLT signal (control pilot signal) , and outputs it to the input terminal PI5 of the control part 20, the CPLT signal including an operational status notification.
  • CPLT signal control pilot signal
  • the signal output part 27 outputs the CPLT signal whose signal level and waveform are modified based on a signal outputted from the output terminal P02 of the control part 20 to the electric vehicle 100 side.
  • the electric leakage generation part 28 simulates a virtual electric leakage by short-circuiting between the power side line LI and the ground side line L2. Further, the electric leakage generation part 28 is provided with a test signal generation circuit 28a for generating a test signal when the electric leakage test button Bl is pushed.
  • the test signal is generated by the test signal generation circuit 28a in the electric leakage generation part 28 , as mentioned above, the power side line LI is short-circuited to the ground side line L2, thereby generating the virtual electric leakage.
  • the power feeding control device 1 has the components 20 to 28 to be connected to the power side line LI, the ground side line L2, and the ground line L3 at the power source side of the relay RY1, thereby supplying an operational power to each of the components 20 to 28.
  • the CPLT signal (i.e., the state notification •signal) is changed in voltage level by changing, for example, a voltage dividing ratio in the circuit of the electric vehicle 100 side, and outputted from the signal output part 27 in accordance with an instruction of the control part 20 (e.g., a given voltage signal or a duty signal) .
  • Table 1 shows an example of the CPLT signal.
  • the CPLT signal has a voltage level of +12 V (state A) , it shows that no electric vehicle 100 is connected to the vehicle side plug P2 (waiting for vehicle connection) .
  • the CPLT signal has a voltage level of ( +9V) (state B) , it shows that the vehicle side plug P2 is connected to the electric vehicle 100 and the connection to the circuit of the electric vehicle 100 is confirmed (checking for the vehicle connection) .
  • the CPLT signal is a duty signal having a voltage level alternating between ( +9V) and (-12V) (state C) , it shows that the connection to the electric vehicle 100 is completed and a charge enable signal from the electric vehicle 100 side is awaited. Still further, when the CPLT signal is a duty signal having a voltage level alternating between (+6V) and (-12V) (state D) , it shows that the charge enable signal is inputted from the electric vehicle 100 side.
  • Fig. 2 shows a concrete circuit diagram of the L-side voltage detector 23 and the N-side voltage detector 24.
  • the L-side voltage detector 23 includes: a series circuit of a capacitor CI, a resistance Rl, and a capacitor C2 which is connected between the power side line LI and the ground line L3 ; a resistance R2 connected in parallel to the capacitor C2 ; a capacitor C3 connected to both ends of the capacitor C2 with a diode Dl interposed therebetween; a zener diode ZD1 and a resistance R5 each of which is connected in parallel to the capacitor C3 ; and a comparator CP1.
  • the comparator CP1 compares a voltage across the capacitor C3 to a reference voltage obtained by dividing a predetermined voltage supplied from the power source by a ratio of resistors R3 and R4 , thereby detecting that no power is supplied to the power side line LI .
  • An output of the comparator CP1 is inputted to an input terminal PI3 of the control part 20.
  • the capacitor C3 is charged via the diode Dl during a half cycle in which the power side line LI is in a positive polarity.
  • the voltage across the capacitor C3 exceeds the reference voltage and the output of the comparator CP1 is inverted into H level from L level. Note that, during the other half cycle for which the power side line LI is in a negative polarity, charges stored in the capacitor C3 are discharged through the resistance R5, so that the voltage across the capacitor C3 decreases gradually.
  • the capacitor C3 and the resistor R5 are preferably designed to have a time constant such that the voltage across the capacitor C3 does not decrease down to below the reference voltage during the negative half cycle of the power side line LI.
  • the N-side voltage detector 24, like the L-side voltage detector 23, includes: a series circuit of a capacitor Cll, a resistance Rll, and a capacitor C12, which are connected between the ground side line L2 and the ground line L3 ; a resistor R12 connected in parallel to the capacitor C12; a capacitor C13 connected to both ends of the capacitor C12 with a diode Dll interposed therebetween; a zener diode ZD11 and a resistor R15 each of which is connected in parallel to the capacitor C13; and a comparator CPU.
  • the comparator CPU compares a voltage across the capacitor C13 to a reference voltage obtained by dividing a predetermined voltage from the power source by a ratio of resistors R13 and R14, thereby detecting that no power is supplied to the ground side line L2.
  • the output of the comparator CPU is inputted into the input terminal PI4 of the control part 20.
  • the capacitor C13 is charged via the diode Dll during a half cycle for which the ground side line L2 is in a positive polarity.
  • the voltage across the capacitor C13 exceeds the reference voltage divided by the resistors R13, R14, and the output of the comparator CPU is inverted to H level from L level.
  • the capacitor C13 and the resistance R15 are designed to have a time constant such that the voltage across the capacitor C13 does not decrease down to below the reference voltage during the negative half cycle of the ground side line L2.
  • the power supply control device 1 When a user connects the power source side plug PI to the power receptacle (SI) , the power supply control device 1 is powered from the commercial AC power source and starts operating.
  • the CPLT signal outputted from the signal output part 27 has a value of +12 V (state A) , and is inputted to the signal input part 26 (S2) .
  • the control part 20 determines, based on the CPLT signal inputted from the signal input part 26, that no vehicle side plug P2 is connected to the electric vehicle 100. Note that, in this state, the relay RY1 is in off state.
  • the voltage level of the CPLT signal is changed to +9 V by the circuit of the vehicle side (state B) , and the CPLT signal is inputted to the control part 20 via the signal input part 26.
  • the control part 20 determines that the vehicle side plug P2 has been connected to the electric vehicle 100. Then, the control part 20 moves into the charge enable waiting state and changes the CPLT signal to the state C through the signal output part 27 (S5) .
  • the charge circuit 103 in the electric vehicle 100 determines that the power feeding control device 1 is in the charge enable waiting state. Accordingly, the charging circuit 103 turns on a charge enable switch.
  • the control part 20 determines that the charging has been enabled by the electric vehicle 100 and changes the CPLT signal to the state D through the signal output part 27 (S8) . Further, the control part 20 controls the relay driving unit 25 to turn on the relay RY1 (S9) . Accordingly, an electric power is supplied to the electric vehicle 100, thereby starting the charging (S10) .
  • the CPLT signal has a voltage level of alternating between +6 V and -12 V (state D) (Sll in Fig. 5A) . From this state, when the charging is completed in the electric vehicle 100 (S12) , the electric vehicle 100 changes the signal level of the CPLT signal to +9V.
  • the control part 20 of the power feeding control device 1 constantly monitors the CPLT signal inputted through the signal input part 26, and determines that the charging is completed and stops the power supply when the control part 20 detects that the voltage level of the CPLT signal is changed to +9 V (Yes of S13) .
  • control part 20 controls the. signal output part 27 to change the CPLT signal to the state C (S14) , and, after that, controls the electric leakage generation part 28 to simulate the virtual leakage (S15) .
  • the electric leakage detection part 22 operates normally the electric leakage is detected. Accordingly, the electric leakage detection part 22 makes the relay RYl opened and outputs the electric leakage detection signal to the input terminal PI1 of the control part 20.
  • the control part 20 After the virtual leakage is simulated by the electric leakage generation part 28, the control part 20 checks whether or not the electric leakage detection signal is inputted to the input terminal PI1 of the control part 20. When no electric leakage detection signal is inputted to the input terminal PI1 of the control part 20, the control part 20 determines that the electric leakage detection part 22 fails to detect electric leakage (No of S16) , and lights on the error lamp LP2 (S17) . In the present embodiment, an abnormal operation in the leakage detection is notified by turning on the error lamp LP2. However, it is not limited thereto, and it may be notified by a sound, e.g., by using a buzzer.
  • the control part 20 determines that the electric leakage detection part 22 detects the electric leakage (Yes in S16) , and moves the fusion-bonding check in the relay RYl.
  • the control part 20 opens the relay RY1. If the relay RY1 is fusion-bonded, both voltages of the power side line LI and the ground side line L2 at the secondary side of the relay RY1 become zero.
  • the L-side voltage detector 23 and the N-side voltage detector 24 detect whether or not voltages exceeding respective predetermined thresholds are generated on the power side line LI and the ground side line L2 of the secondary side of the relay RY1.
  • the control part 20 checks whether or not the fusion-bonding occurs based on the detection results of both voltage detectors 23 and 24 (S18) . Namely, when the voltages exceeding the predetermined thresholds are generated in the secondary side of the relay RY1, the control part 20 determines that the relay RY1 is fusion-bonded, and informs of the fusion-bonding occurrence in the relay RY1 by lighting on the error lamp LP2 (S19) .
  • a fusion-bonding detection part includes the L-side voltage detector 23, the N-side voltage detector 24, and the control part 20.
  • An information part includes the error lamp LP2.
  • the error lamp LP2 may have different lighting patterns distinguishing a detection of the fusion-bonding from a detection of the abnormal operation of the leakage detection.
  • various kinds of failures may be notified by distinguishing in lighting patterns.
  • the occurrence of the relay fusion-boding may be notified by, for example, sounding an alarm or a buzzer.
  • the buzzer may be sounded so as to have a different tone between in detecting the fusion-bonding and in detecting the abnormal operation of the leakage detection.
  • various kinds of failures can be notified by making differences in tone.
  • the electric vehicle 100 informs a user of the completion of charging by using sound or light.
  • the CPLT signal is changed to have a value of +12 V (state A) .
  • the control part 20 determines that the vehicle side plug P2 is disconnected from the receptacle 101 of the electric vehicle 100, and returns to the vehicle connection waiting state (S22) .
  • the control part 20 controls the electric leakage generation part 28 to simulate a virtual electric leakage (self-leakage) at the timing of stopping the power supply to the electric vehicle 100.
  • the electric leakage detection part 22 detects an electric leakage, it makes the relay RY1 opened. Accordingly, without increasing the number of times of opening and closing of the relay RY1, the leakage detection operation can be checked by the electric leakage generation part 28 and the electric leakage detection part 22, and the fusion-bonding of the relay RY1 can be checked by the L-side voltage detector 23 and N-side voltage detector 24. Thus, it is possible to prevent the lifetime of the power feeding control device 1 from being shortened.
  • control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage at the timing when the charge completion signal that notifies the completion of charging as the state notification signal is inputted to the signal input part 26.
  • the electric leakage may be simulated and detected at another time when stopping of the power supply to the electric vehicle can be determined.
  • control part 20 may determine stopping of the power supply by detecting that no state notification signal is inputted because of disconnection of the vehicle side plug P2. This operation will be described below with reference to Fig. 5B.
  • the CPLT signal is in the state D (Sll in Fig. 5A) .
  • the CPLT signal is changed to have a value of +12 V (state A) (Yes in S24) . That is, when no state notification signal is inputted, the CPLT signal changes to the state A. Accordingly, when the CPLT signal is changed to the state A from the state D, the control part 20 determines that no state notification signal is inputted from the electric vehicle 100 side, i.e. , the vehicle side plug P2 is disconnected from the receptacle 101 of the electric vehicle 100, and then moves to a process upon stopping the power supply to the electric vehicle 100.
  • the control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage (S25) At that time, when the electric leakage detection part 22 is found to operate normally and detect the electric leakage , the electric leakage detection part 22 opens the relay RY1 and outputs the electric leakage detection signal to the input terminal PI1 of the control part 20. After simulating the virtual electric leakage by the electric leakage generation part 28, the control part 20 monitors whether or not the electric leakage detection signal is inputted to the input terminal PI1, and determines whether or not the leakage detection operates normally.
  • the control part 20 determines that the electric leakage detection part 22 can detect no electric leakage (No of S26) and lights on the error lamp LP2. Then, the user is informed of an abnormal of the leakage detection operation (S27) .
  • the control part 20 determines that the electric leakage detection part 22 detects the electric leakage normally (Yes of S26) and then moves to a fusion-bonding check of the relay RY1.
  • the electric leakage detection part 22 detects the electric leakage, it opens the relay RY1. If the relay RY1 is not fusion-bonded, each of the power side line LI and ground side line L2 has a voltage of zero at the secondary side of the relay RY1.
  • the L-side voltage detector 23 and the N-side voltage detector 24 detect whether or not the power side line LI and the ground side line L2 have voltages of respective predetermined thresholds or more.
  • the control part 20 checks whether or not the fusion-bonding occurs based on the detection results of both voltage detectors 23 and 24 (S28) . Namely, when the power side line LI and the ground side line L2 at the secondary side of the relay RY1 have voltages of the predetermined thresholds or more, the control part 20 determines that the relay RY1 is fusion-bonded, and informs of the fusion-bonding of the relay RY1 by lighting on the error lamp LP (S29) .
  • the control part 20 determines that the relay RY1 is not fusion-bonded (the relay RY1 is opened normally) , and the error lamp LP2 remains turned off . At this time, the control part 20 controls the signal output part 27 to output the CPLT signal having the voltage of +12 V (state A) , and returns to the vehicle connection waiting state (S30) .
  • the control part 20 moves to a process in stopping of the power supply when the operation stop button B2 (operation stop part) provided on the power supply control device 1 is pressed. This operation will be described below with reference to Fig. 5C.
  • the CPLT signal is in the state D (Sll of Fig. 5A) .
  • the control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage in response to the push operation (stop instruction) through the operation stop button B2 (S32) .
  • the electric leakage detection part 22 opens the relay RY1 and outputs the electric leakage detection signal to the input terminal PI1 of the control part 20.
  • control part 20 After simulating the virtual electric leakage by the electric leakage generation part 28, the control part 20 monitors whether or not the electric leakage detection signal is inputted to the input terminal PI1, and determines whether or not the leakage detection operates normally.
  • control part 20 determines that the electric leakage detection part 22 fails to detect the electric leakage (No in S33), and informs the user of the abnormal of the leakage detection operation by lighting on the error lamp LP2 (S34) .
  • the control part 20 determines that the electric leakage detection part 22 can detect the electric leakage normally (Yes of S33) , and then moves to the fusion-bonding check of the relay RYl.
  • the electric leakage detection part 22 opens the relay RYl. Therefore, if there is no fusion-bonding in the relay RYl, each of the power side line LI and the grounding side line L2 has a voltage of zero at the secondary side of the relay RYl.
  • the L-side voltage detector 23 and the N-side voltage detector 24 detect whether or not the power side line LI and the ground side line L2 have voltages of the respective predetermined thresholds or more at the secondary side of the relay RYl.
  • the control part 20 determines, based on the detection results of both the voltage detectors 23 and 24 , whether or not the fusion-bonding occurs (S35) .
  • the control part 20 determines that the relay RYl is fusion-bonded (Yes of S35) , and informs of the fusion-bonding of the relay RYl by turning on the error lamp LP2 (S36) .
  • the control part 20 determines that the relay RY1 is not fusion-bonded (the relay RY1 is opened) , and leaves the error lamp LP2 off.
  • the control part 20 controls the signal output part 27 to change the CPLT signal to 0 V , and informs the electric vehicle 100 side that the power supply has been stopped (S37) .
  • the power feeding control device 1 checks the operation of the leakage detection and the fusion-bonding of the relay RY1 by simulating the virtual electric leakage. Therefore, it is possible to prevent increasing the number of times of opening and closing of the relay RY1.
  • the control part 20 determines whether or not the voltage is generated in the secondary side of the relay RY1 when the relay RY1 is opened, based on the detection results of the L-side voltage detector 23 and the N-side voltage detector 24.
  • Fig. 6 shows the timing chart for explaining operation check of the electric leakage detection part 22 and the fusion-bonding check of the relay RY1 at the time of completing the charging.
  • the control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage .
  • the electric leakage detection part 22 When detecting the electric leakage, the electric leakage detection part 22 outputs the electric leakage detection signal to the control part.20 and opens the relay RYl. At the time t3 when a predetermined time period has passed from t2, the control part 20 checks the operation of the electric leakage detection part 22. Further, the control part 20 checks the fusion-bonding of the relay RYl at the time t5 when a predetermined time period DT2 elapses after the time t2.
  • the control part 20 determines whether or not the relay RYl is fusion-bonded based on the detection results of the L-side voltage detector 23 and the N-side voltage detector 24.
  • a voltage of the power side line LI is divided and then smoothed by the capacitors C2 and C3 to provide a DC (direct current) voltage which is compared with the reference voltage.
  • the N-side voltage detector 24 a voltage of the power side line L2 is divided and then smoothed by the capacitors C12 and C13 to provide a DC voltage which is compared with the reference voltage. Therefore, after the relay RY1 is opened, a time lag will occur due to residual charges in the capacitors until the outputs of both the voltage detectors 23 and 24 become L level. Since the time lag changes with a capacitor capacity, the predetermined time DT2 is necessary to be set longer than the time lag. Thus, it takes a longer time until the fusion-bonding is checked.
  • a switching element Ql for discharging the charges stored in the capacitors C2 and C3 of the L-side voltage detector 23; and the switching element Q2 for discharging the charges stored in the capacitors C12 and C13 of the N-side voltage detector 24. That is, the charges stored in the capacitors C2, C3 , and the capacitors C12, C13, are discharged through discharging paths provided by discharge circuit parts including the switching elements Ql and Q2 , respectively.
  • These switching elements Ql and Q2 are normally turned off.
  • the switching elements Ql, Q2 are formed of transistors, but may include switching elements other than the transistors .
  • the control part 20 turns on the switching elements Ql, Q2 for a period of time to provide the discharging path.
  • the switching element Ql When the switching element Ql is turned on, the charges stored in the capacitors C2, C3 are discharged.
  • the switching element Q2 When the switching element Q2 is turned on, the charges stored in the capacitors C12, C13 are discharged. This shortens the time lag until the detection results of the L-side voltage detector 23 and the N-side voltage detector 24 are changed to L level, thereby reducing the time lag until the fusion-bonding is checked.
  • the control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage.
  • the electric leakage detection part 22 outputs the electric leakage detection signal to the control part 20 and opens the relay RY1.
  • the control part 20 turns on the switching elements Ql, Q2 during a period of time from the time tl3 to the time tl5, thereby discharging the charges stored in the capacitors C2 and C3 of the L-side voltage detector 23, and the capacitors C12 and C13 of the N-side voltage detector 24.
  • the control part 20 checks the operation of the leakage detection. Besides, the control part 20 checks the fusion-bonding at the time tl6 when a predetermined time period DT5 elapses after time tl5 at which the switching elements Ql, Q2 are turned off.
  • the time period DT4 starting from the time when the electric leakage is generated to the time when the switching elements Ql, Q2 are turned off, is set to be a time period (e.g. , 130 ms) obtained by adding the time period (e.g., 50mS) for which the virtual electric leakage is simulated and the time period (e.g., 80mS) for which the charges stored in the capacitors of the L-side voltage detector 23 and the N-side voltage detector 24 are discharged, in the case where the relay RY1 opens normally.
  • a time period e.g. 130 ms
  • the switching elements Ql, Q2 are turned off at the time tl5 and the capacitors of the L-side voltage detector 23 and the N-side voltage detector 24 are charged.
  • a certain amount of time is needed to change the outputs of the L-side voltage detector 23 and the N-side voltage detector 24 to the H level.
  • the operation check of the electric leakage detection part 22 may be performed at the timing of starting the power supply. This operation will be described with reference to the timing chart shown in Fig. 9.
  • the control part 20 of the power feeding control device 1 determines that the vehicle side plug P2 is connected to the electric vehicle 100, and controls the electric leakage generation part 28 to simulate the virtual electric leakage (S53) .
  • the electric leakage detection part 22 detects the electric leakage and outputs the electric leakage detection signal to the input terminal PI1 of the control part 20.
  • the control part 20 monitors whether or not the electric leakage detection signal is inputted to the input terminal PI1. When no electric leakage detection signal is inputted, the control part 20 determines that the electric leakage detection part 22 cannot detect the electric leakage (No in S54) , and informs the user of the electric leakage detection error by lighting on the error lamp LP2 (S55) .
  • the control part 20 determines that the electric leakage detection part 22 can detect the electric leakage normally (Yes in S54) , and moves to a charge enable waiting state. Then, the control part 20 controls the signal output part 27 to change the CPLT signal into the state C (S56) .
  • the charge circuit 103 of the electric vehicle 100 determines that the power feeding control device 1 is in the charge enable waiting state, and makes a switch for enabling the charging operable.
  • the switch for enabling the charging is turned on at the side of the electric vehicle 100, the voltage level of the CPLT signal is changed to +6 V at the side of the electric vehicle 100, and the signal for enabling the charging is outputted to the power feeding control device 1.
  • the control part 20 determines that the charging to the electric vehicle 100 is enabled, and controls the signal output part 27 to change the CPLT signal into the state D (S58) . Further, the control part 20 controls the relay driving unit 25 to close the relay RY1, thereby starting the charging (S59) .
  • a connection confirmation signal (the CPLT signal of +9 V) for informing that the vehicle side plug P2 is inserted into the receptacle 101 of the electric vehicle 100, as the state notification signal, is inputted into the signal input part 26.
  • the control part 20 controls the electric leakage generation part 28 to simulate the virtual electric leakage.
  • the power feeding control device 1 can determine whether or not the electric leakage detection part 22 operates normally before starting the power supply to the electric vehicle 100. Therefore, after the normal operation of the electric leakage detection part 22 is checked, the power supply can be started. Further, since the virtual electric leakage is simulated in the state where the relay RY1 is opened, it is not necessary to open the relay RY1 upon detecting the electric leakage. As a result, the number of times of opening and closing of the relay RY1 is reduced, which prevents the lifetime of the power feeding control device 1 from being shortened.
  • the portable power feeding control device 1 is used for connecting to the power receptacle, it may be of floortype.
  • the circuit part shown in Fig. 1 may be built in a body part 10 of standing type installed near a parking space, or in the body part 10 attached on a wall of dwellings such as a house.
  • the wiring from the power source may be connected to the primary side of the relay RY1 in advance, which eliminates the need for the cable CBl which connects between the power source and the power side plug PI .

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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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

Dispositif de commande d'alimentation électrique, comprenant un circuit d'alimentation électrique d'une source extérieure de puissance à un dispositif de stockage d'électricité installé dans un véhicule électrique. Le dispositif de commande d'alimentation électrique comprend : un relais branché sur le circuit d'alimentation électrique ; un composant de détection de fuites électriques qui détecte des fuites électriques dans le circuit d'alimentation électrique et ouvre le relais ; un composant de génération de fuites électriques qui simule les fuites électriques dans le circuit d'alimentation électrique ; et un composant de commande qui commande l'ouverture et la fermeture du relais en réaction à un signal de notification d'état introduit dans le composant de commande en provenance du véhicule électrique et qui commande le composant de génération de fuites électriques de façon à simuler les fuites électriques lorsque l'alimentation électrique vers le véhicule électrique est coupée.
PCT/IB2012/000137 2011-01-31 2012-01-31 Dispositif de commande d'alimentation électrique Ceased WO2012104703A1 (fr)

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CN106370971A (zh) * 2016-12-06 2017-02-01 国网浙江慈溪市供电公司 一种漏电检测装置
US10367346B2 (en) 2014-08-07 2019-07-30 Panasonic Intellectual Property Management Co., Ltd. Electric leakage protection device and feed control device
EP3699015A1 (fr) * 2019-01-23 2020-08-26 Bender GmbH & Co. KG Dispositif de circuit électrique permettant de détecter un contact de commutation non ouvert ainsi qu'une interruption de conducteur de protection dans un câble d'alimentation électrique monophasé ou multiphasé
WO2023094076A1 (fr) * 2021-11-26 2023-06-01 KEBA Energy Automation GmbH Station de charge, système et agencement comprenant une pluralité de stations de charge, et procédé de fonctionnement d'une station de charge

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JP5673658B2 (ja) * 2012-12-03 2015-02-18 トヨタ自動車株式会社 蓄電システム
JP6024468B2 (ja) * 2013-01-17 2016-11-16 日立金属株式会社 車両用充電装置
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CN106842007B (zh) * 2017-01-03 2019-07-05 黄山思贝乔机器人自动化设备有限公司 一种继电器自动检测机
KR102349752B1 (ko) * 2017-05-18 2022-01-11 엘에스일렉트릭(주) 전기 자동차를 위한 충전기 및 그의 동작 방법
JP2019193401A (ja) * 2018-04-23 2019-10-31 トヨタ自動車株式会社 電動車両
JP7178957B2 (ja) * 2019-05-22 2022-11-28 ニチコン株式会社 電力供給装置および溶着絶縁診断方法
JP7644036B2 (ja) * 2022-01-19 2025-03-11 アズビル株式会社 制御システム
CN119644134A (zh) * 2025-02-12 2025-03-18 国网山东省电力公司临邑县供电公司 一种漏电开关安全检测方法及智能检测仪

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US10367346B2 (en) 2014-08-07 2019-07-30 Panasonic Intellectual Property Management Co., Ltd. Electric leakage protection device and feed control device
CN106370971A (zh) * 2016-12-06 2017-02-01 国网浙江慈溪市供电公司 一种漏电检测装置
EP3699015A1 (fr) * 2019-01-23 2020-08-26 Bender GmbH & Co. KG Dispositif de circuit électrique permettant de détecter un contact de commutation non ouvert ainsi qu'une interruption de conducteur de protection dans un câble d'alimentation électrique monophasé ou multiphasé
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WO2023094076A1 (fr) * 2021-11-26 2023-06-01 KEBA Energy Automation GmbH Station de charge, système et agencement comprenant une pluralité de stations de charge, et procédé de fonctionnement d'une station de charge

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TW201232990A (en) 2012-08-01

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