WO2016009526A1 - Fitting state determination device and fitting state determination method - Google Patents

Fitting state determination device and fitting state determination method Download PDF

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Publication number
WO2016009526A1
WO2016009526A1 PCT/JP2014/069042 JP2014069042W WO2016009526A1 WO 2016009526 A1 WO2016009526 A1 WO 2016009526A1 JP 2014069042 W JP2014069042 W JP 2014069042W WO 2016009526 A1 WO2016009526 A1 WO 2016009526A1
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WO
WIPO (PCT)
Prior art keywords
connector
power
fitting state
fitting
state determination
Prior art date
Application number
PCT/JP2014/069042
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French (fr)
Japanese (ja)
Inventor
寿一 鳴神
上島　宇貴
Original Assignee
日産自動車株式会社
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Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to PCT/JP2014/069042 priority Critical patent/WO2016009526A1/en
Publication of WO2016009526A1 publication Critical patent/WO2016009526A1/en

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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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a fitting state determination device and a fitting state determination method for determining a fitting state between connectors.
  • a user performs charging by fitting a connector of a power feeding device to an inlet of a device to be charged, and then operates a lock release button to pull out the connector.
  • a technique has been proposed in which it is determined that the connector and the inlet have become non-fitted in response to the operation of the lock release button, and the power feeding device and the non-charging device terminate charging (see Patent Document 1).
  • the connector may remain in the inlet even if the lock release button is operated, such as when the lock release button is operated but the connector cannot be removed, or when the lock release button is operated incorrectly. . In such a case, although the connector and the inlet are not non-fitted, it may be determined that the connector is not fitted.
  • An object of this invention is to provide the fitting state determination apparatus and fitting state determination method which can determine the semi-fitting state between connectors easily in view of the said problem.
  • a fitting state determination device is configured to operate a fitting state between a power feeding connector of a power feeding device and a power receiving connector locked in a state fitted with the power feeding connector.
  • the fitting detection signal linked to the operation state of the lock release button that releases the lock indicates that the lock between the power feeding connector and the power receiving connector is released, and the electrical connection state between the power feeding connector and the power receiving connector. Is determined to be half-fitted.
  • FIG. 1 is a block diagram illustrating a basic configuration of a charging system including a fitting state determination device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating a basic configuration of an electric vehicle on which the fitting state determination device according to the embodiment of the present invention is mounted.
  • FIG. 3 is a flowchart for explaining the operation of the fitting state determination device according to the embodiment of the present invention.
  • FIG. 4 is a diagram for explaining the operation of the fitting state determination device according to the embodiment of the present invention.
  • FIG. 5 is a flowchart for explaining the operation of the fitting state determination apparatus according to the embodiment of the present invention.
  • a charging system including a fitting state determination device 10 includes an electric vehicle 1 and a power feeding device 2 that supplies electric power to the electric vehicle 1.
  • the fitting state determination device 10 is mounted on the electric vehicle 1.
  • the electric vehicle 1 is a vehicle that uses stored electric power as a driving force, such as an electric vehicle, a hybrid vehicle, and a plug-in hybrid vehicle.
  • the power feeding device 2 includes a power feeding connector 21 that is connected to the electric vehicle 1, a lock release button 22 that is a push button provided on the power feeding connector 21, a power feeding circuit 23, and a power feeding control unit 24.
  • the power feeding connector 21 is, for example, a gun-type connector that is inserted into and removed from the electric vehicle 1 by a user.
  • the power feeding device 2 performs conductive charging on the electric vehicle 1 via the power feeding connector 21.
  • the lock release button 22 includes a switch 221 that electrically opens and closes between contacts according to an operation.
  • the power supply circuit 23 converts, for example, a voltage supplied from a commercial power source E such as AC 100 V or AC 200 V into a predetermined DC voltage or AC voltage according to control of the power supply control unit 24, and Output.
  • the power feeding connector 21 includes a pair of power terminals T21 and T22, a ground terminal T23, a detection terminal T24, and a communication terminal T25.
  • Power terminals T21 and T22 are connected to power feeding circuit 23 via power lines PL21 and PL22, respectively.
  • the power terminals T21 and T22 output the voltage converted by the power feeding circuit 23.
  • the ground terminal T23 is connected to the ground potential GND of the power feeding device 2 through the ground line GL2.
  • the detection terminal T24 is connected to one end side of the resistor RC via the detection line DL2.
  • the switch 221 is connected between the other end side of the resistor RC and the ground line GL2.
  • the communication terminal T25 is connected to the power supply control unit 24 via the communication line CL2.
  • the power supply control unit 24 communicates with the electric vehicle 1 via the communication line CL2 dedicated to communication.
  • the communication signal transmitted from the power supply control unit 24 to the electric vehicle 1 is, for example, a PWM (Pulse Width Modulation) signal oscillated at a predetermined frequency, a CAN signal defined by a CAN (Controller Area Network) standard, or the like.
  • the power supply control unit 24 can change the amplitude, voltage value, and the like of the communication signal by switching the switch SW1, and can transmit the communication signal to the communication terminal T25 via the resistor R1 and the communication line CL2. .
  • the power supply control unit 24 controls the power supply circuit 23 according to communication with the electric vehicle 1.
  • the fitting state determination device 10 includes a power receiving connector 11, a charging circuit 13, a processing unit 14, and a power supply unit 15 capable of storing electricity.
  • the power receiving connector 11 has a shape corresponding to the power feeding connector 21 and is an inlet into which the power feeding connector 21 can be fitted.
  • the power receiving connector 11 includes a pair of power terminals T11 and T12, a ground terminal T13, a detection terminal T14, and a communication terminal T15.
  • the power terminals T11, T12, the ground terminal T13, the detection terminal T14, and the communication terminal T15 are the power terminals T21, T22, the ground terminal T23, the detection terminal T24, and It is electrically connected to the communication terminal T25.
  • the power receiving connector 11 is configured to be locked in a state in which the power receiving connector 11 and the power feeding connector 21 are fitted to the power feeding connector 21 by a lock mechanism respectively included in the power receiving connector 11 and the power feeding connector 21.
  • the lock between the power receiving connector 11 and the power feeding connector 21 is released when the lock release button 22 is operated, and the power feeding connector 21 can be removed.
  • the processing unit 14 includes a charge control unit 141 and a fitting state determination unit 142.
  • the processing unit 14 includes an arithmetic processing device such as a microcomputer.
  • the processing unit 14 may store program files and various types of data, or may temporarily store them necessary for calculation.
  • Each of the charging control unit 141 and the fitting state determination unit 142 is a display as a logical structure, and may be configured by a single hardware or may be configured by separate hardware.
  • the detection terminal T14 is connected to the processing unit 14 via the detection line DL1.
  • the fitting state determination unit 142 generates a fitting detection signal that is linked to the operation state of the lock release button 22.
  • the fitting state determination unit 142 can detect the lock state between the power receiving connector 11 and the power feeding connector 21 by detecting the voltage of the fitting detection signal. That is, the power receiving connector 11 outputs a fitting detection signal generated at the detection terminal T14 to the fitting state determination unit 142 via the detection line DL1.
  • the detection terminal T14 is grounded via the resistor RC, so that the fitting detected by the fitting state determination unit 142
  • the voltage of the detection signal is lower than when the switch 221 is in the open state.
  • the lock release button 22 is operated and the switch 221 is opened, the voltage of the fitting detection signal is higher than when the switch 221 is closed.
  • Charging circuit 13 is connected to power terminals T11 and T12 via power lines PL11 and PL12, respectively.
  • the charging circuit 13 converts the power supplied from the power feeding device 2 through the power feeding connector 21 and the power receiving connector 11 into a predetermined DC voltage and supplies the power to the power source 15 under the control of the charging control unit 141.
  • the power supply unit 15 is charged.
  • the charging circuit 13 outputs a power feeding detection signal indicating that power is being supplied from the power feeding device 2 to the fitting state determination unit 142 via the power terminals T11 and T12.
  • the fitting state determination unit 142 communicates with the power supply control unit 24 by receiving a communication signal from the power supply control unit 24 via the communication lines CL1 and CL2 and the diode D1.
  • the communication terminal T15 is connected to the anode side of the diode D1 via the communication line CL1.
  • the cathode side of the diode D1 is connected to the fitting state determination unit 142 via the node N1.
  • the ground terminal T13 is connected to the ground potential GND of the electric vehicle 1 through the ground line GL1.
  • a switch SW2, a resistor R2, and a resistor R3 connected in series with each other are connected in parallel with each other.
  • the switch SW2 and the resistors R2 and R3 adjust the potential of the communication signal at the node N1 when the switch SW2 is opened and closed by the charge control unit 141.
  • the electric vehicle 1 includes an inverter 181 that converts DC power supplied from the power supply unit 15 into AC power, a drive unit 182 that is driven by the power converted by the inverter 181, and operations of the inverter 181. And a vehicle control unit 12 for controlling the vehicle.
  • the driving unit 182 includes a three-phase motor that rotates wheels (not shown) of the electric vehicle 1 by driving.
  • the drive unit 182 functions as a motor that drives the electric vehicle 1 by being supplied with electric power from the inverter 181 and rotates, or a generator that outputs electric power generated by the rotation to the inverter 181.
  • the inverter 181 generates a three-phase alternating current by switching a plurality of switching elements according to the control of the vehicle control unit 12.
  • the inverter 181 can charge the power supply unit 15 by outputting the power generated by the drive unit 182 to the power supply unit 15.
  • the charging circuit 13 includes an electrical state detection unit 16 that detects an electrical state between the power lines PL11 and PL12, and a relay unit (opening / closing unit) 17 that opens and closes between the power lines PL11 and PL12 and the power supply unit 15. Is provided.
  • Electrical state detection unit 16 includes voltmeter 161 having both ends connected to power lines PL11 and PL12, respectively.
  • the electrical state detection unit 16 detects the voltage value between the power terminals T11 and T12 as an electrical state by the voltmeter 161 and transmits the detected voltage value to the vehicle control unit 12.
  • the electrical state detection unit 16 may include ammeters whose both ends are connected to the power lines PL11 and PL12, respectively, and may transmit the detected current value to the vehicle control unit 12 as an electrical state.
  • the relay unit 17 includes a pair of relays 171 and 172 having one end connected to the power lines PL11 and PL12 and the other end connected to the power supply unit 15, respectively.
  • Relays 171 and 172 open and close between power lines PL ⁇ b> 11 and PL ⁇ b> 12 and power supply unit 15 by electrically opening and closing between contact pairs in accordance with the control of vehicle control unit 12.
  • Relays 171 and 172 can be individually driven according to the control of vehicle control unit 12.
  • the power supply unit 15 includes a storage battery 154 and a pair of main relays 151 and 152 each having one end connected to the positive electrode and the negative electrode of the storage battery 154 and the other end connected to the relays 171 and 172.
  • the main relays 151 and 152 are controlled to be opened when the electric vehicle 1 is not traveling and when the power supply unit 15 is not charged, and are controlled to be closed when the electric vehicle 1 is traveling and when the power supply unit 15 is charged.
  • the main relays 151 and 152 can be individually driven according to the control of the vehicle control unit 12.
  • a resistor R4 and a relay 153 connected in series with each other are connected in parallel to the main relay 151.
  • the resistor R4 and the relay 153 function as a precharge circuit that prevents the main relays 151 and 152 from being welded by a large current.
  • the storage battery 154 is locked when the power supply connector 21 and the power reception connector 11 are fitted, and stores power by being supplied with power from the power supply device 2.
  • the storage battery 154 is composed of, for example, a nickel metal hydride battery or a lithium ion battery.
  • the vehicle control unit 12 includes an arithmetic processing device such as a microcomputer.
  • the vehicle control unit 12 may store program files and various data, or may temporarily store them necessary for calculation.
  • the vehicle control unit 12 drives the drive unit 182 to drive the electric vehicle 1 by controlling the drive of the inverter 181 according to, for example, a user operation on the electric vehicle 1. That is, the electric vehicle 1 travels using the electric power of the power supply unit 15 as a driving force under the control of the vehicle control unit 12.
  • the vehicle control unit 12 controls the relay unit 17 to switch between the open / closed states of the relays 171 and 172 and relay the power supplied from the power feeding device 2 to the power supply unit 15.
  • the vehicle control unit 12 controls the relays 171 and 172 to be closed when the power supply unit 15 is charged, and controls the relays 171 and 172 to be open when not charged.
  • the vehicle control unit 12 detects a traveling state such as the speed and acceleration of the electric vehicle 1. For example, the vehicle control unit 12 acquires the drive state (control state) of the drive unit 182 from the inverter 181 and detects the speed of the electric vehicle 1 from the drive state of the drive unit 182. Moreover, the vehicle control part 12 detects the acceleration or deceleration of the electric vehicle 1 from the moving distance and speed from the time before the predetermined time to the current time. The vehicle control unit 12 may detect the speed or acceleration (deceleration) of the electric vehicle 1 from an acceleration sensor or a speedometer (not shown) mounted on the electric vehicle 1.
  • the vehicle control unit 12 diagnoses the state of the relay unit 17 when the traveling state of the electric vehicle 1 becomes a predetermined state.
  • the vehicle control unit 12 switches between the open / closed states of the relays 171 and 172 and detects an open failure or the like in which the relay unit 17 is not welded or closed based on the electrical state detected by the electrical state detection unit 16. To do.
  • fitting state determination method for determining the fitting state between the power feeding connector 21 and the power receiving connector 11 in the fitting state determination device 10 will be described with reference to the flowchart of FIG. 3.
  • step S ⁇ b> 101 the fitting state determination unit 142 starts input processing of a fitting detection signal from the power receiving connector 11 and a power feeding detection signal from the charging circuit 13.
  • the fitting state determination unit 142 may input the electrical state between the power terminals T11 and T12 acquired from the electrical state detection unit 16 as a power feeding detection signal.
  • step S ⁇ b> 102 the fitting state determination unit 142 starts communication processing with the power supply device 2.
  • step S103 the fitting state determination unit 142 determines whether or not the fitting detection signal input in step S101 is a non-fitting state indicating that the lock between the power supply connector 21 and the power receiving connector 11 is released. To do. When it is determined that the mating state determination unit 142 is in a non-fitting state, the process proceeds to step S104. It is determined that the state is a completely fitted state locked in a state.
  • step S ⁇ b> 104 the fitting state determination unit 142 determines whether or not there is an abnormality in the communication circuit used for communication with the power supply device 2 or the communication circuit and the charging circuit 13 to which power is supplied from the power supply device 2. When it is determined that there is no abnormality, the fitting state determination unit 142 proceeds to step S105. When it is determined that there is an abnormality, the power supply connector 21 and the power receiving connector 11 are not fitted in step S109. It determines with it being a fitting state.
  • step S105 the fitting state determination unit 142 determines whether communication between the electric vehicle 1 and the power feeding device 2 is established.
  • the fitting state determination unit 142 determines that communication is established, for example, when the communication signal at the node N1 from the power supply apparatus 2 has oscillation in the PWM signal or is valid as a CAN signal.
  • the fitting state determination unit 142 proceeds to step S106, and when it is determined that the communication is not established, the process proceeds to step S107.
  • step S106 the fitting state determination unit 142 determines that the fitting state between the power feeding connector 21 and the power receiving connector 11 is a half-fitting state.
  • the half-fitted state means that the power feeding connector 21 and the power receiving connector 11 are fitted, but the lock is released and the fitting state is incomplete.
  • step S107 the fitting state determination unit 142 determines whether or not the voltage level of the communication signal from the power supply apparatus 2 at the node N1 is valid. For example, the fitting state determination unit 142 determines that the voltage level is valid when the voltage amplitude or voltage value of the communication signal is equal to or greater than a predetermined threshold. When the fitting state determination unit 142 determines that the voltage level is valid, the process proceeds to step S106, and when it is determined that the voltage level is not valid, the process proceeds to step S108.
  • step S108 the fitting state determination unit 142 determines whether or not the charging circuit 13 is supplied with power from the power supply device 2 based on the power supply detection signal. When it is determined that there is power supply, the fitting state determination unit 142 proceeds to step S106, and when it is determined that there is no power supply, the process proceeds to step S109.
  • the fitting detection signal Lock The voltage (low) is lower than when the is released.
  • the electrical connection state of each terminal of the power feeding connector 21 and the power receiving connector 11 is determined to be valid by the fitting state determination unit 142. Therefore, the fitting state determination unit 142 completely fits the fitting state between the power feeding connector 21 and the power receiving connector 11 based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
  • the fitting state determination unit 142 indicates that the communication with the power supply device 2 is established through the communication line CL1, the voltage level of the communication signal in the communication line CL1 is valid, and the charging circuit 13 is the power supply device. 2, it is determined that the electrical connection state between the power feeding connector 21 and the power receiving connector 11 is valid. That is, the fitting state determination unit 142 determines the electrical connection state between the power feeding connector 21 and the power receiving connector 11 when either YES in step S105 of FIG. 3, YES in step S107, or YES in step S108 is satisfied. Judged to be valid.
  • the fitting state determination unit 142 half-fits the fitting state between the power feeding connector 21 and the power receiving connector 11 based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
  • the fitting detection signal maintains a high voltage (high).
  • the electrical connection state of each terminal of the power feeding connector 21 and the power receiving connector 11 is determined to be invalid by the fitting state determination unit 142. Therefore, the fitting state determination unit 142 determines that the fitting state between the power feeding connector 21 and the power receiving connector 11 is not fitted based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
  • step S201 the fitting state determination unit 142 starts a series of processes related to the control in the case of determining the half-fitting state.
  • step S ⁇ b> 202 the fitting state determination unit 142 determines whether the charging circuit 13 is currently charging the storage battery 154 from the control state of the charging control unit 141.
  • the fitting state determination unit 142 proceeds to step S203 when the storage battery 154 is being charged, and proceeds to step S206 when not being charged.
  • step S203 the fitting state determination unit 142 determines whether the fitting state between the power supply connector 21 and the power receiving connector 11 can be detected (determined). If the fitting state can be detected, the fitting state determination unit 142 proceeds to step S204. If not, the fitting state determination unit 142 proceeds to step S209.
  • step S204 the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 is determined as the half-fitting state.
  • the fitting state determination unit 142 proceeds to step S205 when determining the half-fitted state, and ends the process when determining that it is not the half-fitted state.
  • step S ⁇ b> 205 the fitting state determination unit 142 performs fail-safe control on the charging circuit 13 by the charging control unit 141.
  • the charging control unit 141 keeps the relay unit 17 closed while the storage battery 154 is being charged.
  • the charging control unit 141 stops the supply of power to the power supply unit 15 while keeping the relay unit 17 in the closed state, and stops the charging of the storage battery 154, or continues the charging of the storage battery 154. That's fine.
  • step S206 the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 can be detected (determined). If the fitting state can be detected, the fitting state determination unit 142 proceeds to step S207. If not, the fitting state determination unit 142 proceeds to step S209.
  • step S207 the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 is determined as the half-fitting state.
  • the fitting state determination unit 142 proceeds to step S208 when determining the half-fitted state, and ends the process when determining that it is not the half-fitted state.
  • step S208 the fitting state determination unit 142 performs fail-safe control on the electric vehicle 1 by the vehicle control unit 12.
  • the vehicle control unit 12 prohibits traveling of the electric vehicle 1 as fail-safe control for the electric vehicle 1.
  • step S ⁇ b> 209 the fitting state determination unit 142 allows the charging to the storage battery 154 after setting a predetermined restriction on the charging circuit 13 by the charging control unit 141.
  • the predetermined restriction is, for example, an upper limit of the voltage supplied from the power supply device 2, an upper limit of the charging time, authentication with a key, or the like.
  • the fitting detection signal interlocked with the operation state of the lock release button 22 and the electrical connection state between the power feeding connector 21 and the power receiving connector 11 are obtained. Based on this, the fitting state between the connectors is determined.
  • the fitting state determination device 10 indicates that the fitting detection signal indicates that the lock between the connectors is released, and when the electrical connection state between the connectors is valid, the power feeding connector 21 and the power receiving connector 11. Is determined to be half-fitted. Thereby, the fitting state determination apparatus 10 can determine the half-fitting state between the connectors with a simple configuration.
  • the fitting state determination apparatus 10 when the fitting state determination part 142 determines that a fitting state is a half-fitting while the charging circuit 13 is not charging the storage battery 154, it is an electric vehicle as fail control. 1 is prohibited. Thereby, the fitting state determination apparatus 10 can prevent the electric vehicle 1 from traveling while the power feeding connector 21 is inserted into the power receiving connector 11.
  • the fitting state determination device 10 when the fitting state determination unit 142 determines that the fitting state is half-fitting while the charging circuit 13 is charging the storage battery 154, the storage battery 154 is used as fail control.
  • the relays 171 and 172 are continuously closed during charging.
  • the fitting state determination device 10 can prevent the relay unit 17 from opening and closing at a high voltage, and can prevent a sudden decrease in durability of the relay unit 17. Moreover, even if the fitting state determination apparatus 10 is a case where a lock mechanism fails, it can continue charging safely.
  • the fitting state determination device 10 when the fitting state determination unit 142 cannot determine the fitting state, it is a case where the fitting state cannot be determined due to a failure or the like by allowing charging by the charging circuit 13. However, the storage battery 154 can be charged as an emergency response.
  • the fitting state determination apparatus 10 the establishment of communication with the power feeding apparatus 2 by the communication line CL1, the voltage level of the communication signal in the communication line CL1 is valid, and the charging circuit 13 is connected from the power feeding apparatus 2. In a case where any one of power supply is satisfied, it is determined that the electrical connection state between the connectors is valid. Thereby, the fitting state determination apparatus 10 can improve the determination precision of a semi-fitting state even if the electric power feeder 2 behaves that is not standardized or has failed.
  • the fitting detection signal is configured to have a low potential when the lock release button 22 is operated and the lock is released, but depending on the configuration of the switch 221 and the like, You may make it become a high electric potential.
  • the fitting state determination unit 142 has the power feeding connector 21 and the power receiving connector 11. Is determined to be half-fitted.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A fitting state determination device (10) determines that the fitting state between a power supply connector (21) of a power supply device (2) and a power receiving connector (11) locked fitted to the power supply connector (21) is half-fitted, when a fitting detection signal indicates that the lock between the power supply connector (21) and the power receiving connector (11) is released and an electrical connection state between the power supply connector (21) and the power receiving connector (11) is valid, said fitting detection signal being generated depending on an operation state of a lock release button (22) that is operated to release the lock between the power supply connector (21) and the power receiving connector (11).

Description

嵌合状態判定装置及び嵌合状態判定方法Fitting state determination device and fitting state determination method
　本発明は、コネクタ間の嵌合状態を判定する嵌合状態判定装置及び嵌合状態判定方法に関する。 The present invention relates to a fitting state determination device and a fitting state determination method for determining a fitting state between connectors.
　一般に電動車両の充電システムにおいて、ユーザが給電装置のコネクタを被充電機器のインレットに嵌合させて充電を行った後、ロックリリースボタンを操作して、コネクタを抜き取る。ロックリリースボタンが操作されたことに応じて、コネクタとインレットとが非嵌合になったと判断し、給電装置及び非充電機器が充電を終了する技術が提案されている（特許文献１参照）。このような充電システムにおいて、ロックリリースボタンは操作されたがコネクタが抜き取られない場合、ロックリリースボタンが誤操作された場合等、ロックリリースボタンが操作されてもコネクタがインレットの中に残る場合がある。このような場合、コネクタとインレットとは非嵌合でないにも関わらず、非嵌合と判断されてしまう恐れがある。 Generally, in an electric vehicle charging system, a user performs charging by fitting a connector of a power feeding device to an inlet of a device to be charged, and then operates a lock release button to pull out the connector. A technique has been proposed in which it is determined that the connector and the inlet have become non-fitted in response to the operation of the lock release button, and the power feeding device and the non-charging device terminate charging (see Patent Document 1). In such a charging system, the connector may remain in the inlet even if the lock release button is operated, such as when the lock release button is operated but the connector cannot be removed, or when the lock release button is operated incorrectly. . In such a case, although the connector and the inlet are not non-fitted, it may be determined that the connector is not fitted.
　この問題に対して、コネクタとインレットとの嵌合状態に対応した電圧を発生させるための回路と、嵌合状態に対応した電圧を監視する回路とを用いて、嵌合状態を検出する充電システムが提案されている（特許文献２参照）。 To solve this problem, a charging system that detects a fitting state using a circuit for generating a voltage corresponding to the fitting state between the connector and the inlet and a circuit for monitoring a voltage corresponding to the fitting state. Has been proposed (see Patent Document 2).
特開２０１１－１０４２０号公報JP 2011-10420 A 特開２０１２－１６２１７６号公報JP 2012-162176 A
　しかしながら、特許文献２に記載の技術は、嵌合状態を検出するための専用の複雑な回路を設ける必要があり、製造コストが増大するという問題がある。
　本発明は、上記問題点を鑑み、簡単にコネクタ間の半嵌合状態を判定することができる嵌合状態判定装置及び嵌合状態判定方法を提供することを目的とする。 However, the technique described in Patent Literature 2 has a problem that it is necessary to provide a dedicated complex circuit for detecting the fitting state, and the manufacturing cost increases.
An object of this invention is to provide the fitting state determination apparatus and fitting state determination method which can determine the semi-fitting state between connectors easily in view of the said problem.
　本発明の一態様に係る嵌合状態判定装置は、給電装置の給電コネクタと、給電コネクタと嵌合した状態でロックされる受電コネクタとの嵌合状態を、操作されることにより給電コネクタとのロックを解除するロックリリースボタンの操作状態に連動する嵌合検知信号が、給電コネクタと受電コネクタとのロックが解除されていることを示し、且つ、給電コネクタと受電コネクタとの電気的な接続状態が有効である場合において、半嵌合であると判定する。 A fitting state determination device according to an aspect of the present invention is configured to operate a fitting state between a power feeding connector of a power feeding device and a power receiving connector locked in a state fitted with the power feeding connector. The fitting detection signal linked to the operation state of the lock release button that releases the lock indicates that the lock between the power feeding connector and the power receiving connector is released, and the electrical connection state between the power feeding connector and the power receiving connector. Is determined to be half-fitted.
図１は、本発明の実施の形態に係る嵌合状態判定装置を備える充電システムの基本的な構成を説明するブロック図である。FIG. 1 is a block diagram illustrating a basic configuration of a charging system including a fitting state determination device according to an embodiment of the present invention. 図２は、本発明の実施の形態に係る嵌合状態判定装置が搭載される電動車両の基本的な構成を説明するブロック図である。FIG. 2 is a block diagram illustrating a basic configuration of an electric vehicle on which the fitting state determination device according to the embodiment of the present invention is mounted. 図３は、本発明の実施の形態に係る嵌合状態判定装置の動作を説明するフローチャートである。FIG. 3 is a flowchart for explaining the operation of the fitting state determination device according to the embodiment of the present invention. 図４は、本発明の実施の形態に係る嵌合状態判定装置の動作を説明する図である。FIG. 4 is a diagram for explaining the operation of the fitting state determination device according to the embodiment of the present invention. 図５は、本発明の実施の形態に係る嵌合状態判定装置の動作を説明するフローチャートである。FIG. 5 is a flowchart for explaining the operation of the fitting state determination apparatus according to the embodiment of the present invention.
　次に、図面を参照して、本発明の実施の形態を説明する。
（充電システム）
　本発明の実施の形態に係る嵌合状態判定装置１０を備える充電システムは、図１に示すように、電動車両１と、電動車両１に給電する給電装置２とを備える。嵌合状態判定装置１０は、電動車両１に搭載される。電動車両１は、電気自動車、ハイブリッド車及びプラグインハイブリッド車等、蓄電した電力を駆動力とする車両である。 Next, embodiments of the present invention will be described with reference to the drawings.
(Charging system)
As shown in FIG. 1, a charging system including a fitting state determination device 10 according to an embodiment of the present invention includes an electric vehicle 1 and a power feeding device 2 that supplies electric power to the electric vehicle 1. The fitting state determination device 10 is mounted on the electric vehicle 1. The electric vehicle 1 is a vehicle that uses stored electric power as a driving force, such as an electric vehicle, a hybrid vehicle, and a plug-in hybrid vehicle.
　給電装置２は、電動車両１に接続する給電コネクタ２１と、給電コネクタ２１に設けられたプッシュボタンであるロックリリースボタン２２と、給電回路２３と、給電制御部２４とを備える。給電コネクタ２１は、例えば、ユーザにより電動車両１に対して挿抜されるガンタイプのコネクタである。給電装置２は、給電コネクタ２１を介して、電動車両１にコンダクティブ充電を行う。 The power feeding device 2 includes a power feeding connector 21 that is connected to the electric vehicle 1, a lock release button 22 that is a push button provided on the power feeding connector 21, a power feeding circuit 23, and a power feeding control unit 24. The power feeding connector 21 is, for example, a gun-type connector that is inserted into and removed from the electric vehicle 1 by a user. The power feeding device 2 performs conductive charging on the electric vehicle 1 via the power feeding connector 21.
　ロックリリースボタン２２は、操作に応じて接点間を電気的に開閉する開閉器２２１を備える。給電回路２３は、給電制御部２４の制御に応じて、例えば、交流１００Ｖや交流２００Ｖ等の商用電源Ｅより供給される電圧を、所定の直流電圧又は交流電圧に変換して、給電コネクタ２１から出力する。 The lock release button 22 includes a switch 221 that electrically opens and closes between contacts according to an operation. The power supply circuit 23 converts, for example, a voltage supplied from a commercial power source E such as AC 100 V or AC 200 V into a predetermined DC voltage or AC voltage according to control of the power supply control unit 24, and Output.
　給電コネクタ２１は、一対の電力端子Ｔ２１，Ｔ２２、接地端子Ｔ２３、検知端子Ｔ２４及び通信端子Ｔ２５を備える。電力端子Ｔ２１，Ｔ２２は、それぞれ電力線ＰＬ２１，ＰＬ２２を介して給電回路２３に接続される。電力端子Ｔ２１，Ｔ２２は、給電回路２３が変換した電圧を出力する。接地端子Ｔ２３は、接地線ＧＬ２を介して給電装置２の接地電位ＧＮＤに接続される。検知端子Ｔ２４は、検知線ＤＬ２を介して抵抗ＲＣの一端側に接続される。開閉器２２１は、抵抗ＲＣの他端側と接地線ＧＬ２との間に接続される。通信端子Ｔ２５は、通信線ＣＬ２を介して給電制御部２４に接続される。 The power feeding connector 21 includes a pair of power terminals T21 and T22, a ground terminal T23, a detection terminal T24, and a communication terminal T25. Power terminals T21 and T22 are connected to power feeding circuit 23 via power lines PL21 and PL22, respectively. The power terminals T21 and T22 output the voltage converted by the power feeding circuit 23. The ground terminal T23 is connected to the ground potential GND of the power feeding device 2 through the ground line GL2. The detection terminal T24 is connected to one end side of the resistor RC via the detection line DL2. The switch 221 is connected between the other end side of the resistor RC and the ground line GL2. The communication terminal T25 is connected to the power supply control unit 24 via the communication line CL2.
　給電制御部２４は、通信専用の通信線ＣＬ２を介して、電動車両１と通信する。給電制御部２４から電動車両１に送信される通信信号は、例えば、所定の周波数に発振されたＰＷＭ（Pulse Width Modulation）信号、ＣＡＮ（Controller Area Network）規格により規定されたＣＡＮ信号等である。給電制御部２４は、例えば、スイッチＳＷ１を切り替えることにより、通信信号の振幅、電圧値等を変更して、抵抗Ｒ１及び通信線ＣＬ２を介して、通信端子Ｔ２５に通信信号を送信することができる。給電制御部２４は、電動車両１との通信に応じて、給電回路２３を制御する。 The power supply control unit 24 communicates with the electric vehicle 1 via the communication line CL2 dedicated to communication. The communication signal transmitted from the power supply control unit 24 to the electric vehicle 1 is, for example, a PWM (Pulse Width Modulation) signal oscillated at a predetermined frequency, a CAN signal defined by a CAN (Controller Area Network) standard, or the like. For example, the power supply control unit 24 can change the amplitude, voltage value, and the like of the communication signal by switching the switch SW1, and can transmit the communication signal to the communication terminal T25 via the resistor R1 and the communication line CL2. . The power supply control unit 24 controls the power supply circuit 23 according to communication with the electric vehicle 1.
　嵌合状態判定装置１０は、受電コネクタ１１と、充電回路１３と、処理部１４と、蓄電可能な電源部１５とを備える。受電コネクタ１１は、給電コネクタ２１に対応した形状を有し、給電コネクタ２１が嵌合可能なインレットである。受電コネクタ１１は、一対の電力端子Ｔ１１，Ｔ１２、接地端子Ｔ１３、検知端子Ｔ１４及び通信端子Ｔ１５を備える。給電コネクタ２１が受電コネクタ１１に嵌合されることにより、電力端子Ｔ１１，Ｔ１２、接地端子Ｔ１３、検知端子Ｔ１４及び通信端子Ｔ１５は、それぞれ、電力端子Ｔ２１，Ｔ２２、接地端子Ｔ２３、検知端子Ｔ２４及び通信端子Ｔ２５に電気的に接続される。 The fitting state determination device 10 includes a power receiving connector 11, a charging circuit 13, a processing unit 14, and a power supply unit 15 capable of storing electricity. The power receiving connector 11 has a shape corresponding to the power feeding connector 21 and is an inlet into which the power feeding connector 21 can be fitted. The power receiving connector 11 includes a pair of power terminals T11 and T12, a ground terminal T13, a detection terminal T14, and a communication terminal T15. By fitting the power feeding connector 21 to the power receiving connector 11, the power terminals T11, T12, the ground terminal T13, the detection terminal T14, and the communication terminal T15 are the power terminals T21, T22, the ground terminal T23, the detection terminal T24, and It is electrically connected to the communication terminal T25.
　受電コネクタ１１は、受電コネクタ１１及び給電コネクタ２１がそれぞれ有するロック機構により、給電コネクタ２１と嵌合した状態でロックされるように構成される。受電コネクタ１１と給電コネクタ２１とのロックは、ロックリリースボタン２２が操作されることにより解除され、給電コネクタ２１が抜き取り可能となる。 The power receiving connector 11 is configured to be locked in a state in which the power receiving connector 11 and the power feeding connector 21 are fitted to the power feeding connector 21 by a lock mechanism respectively included in the power receiving connector 11 and the power feeding connector 21. The lock between the power receiving connector 11 and the power feeding connector 21 is released when the lock release button 22 is operated, and the power feeding connector 21 can be removed.
　処理部１４は、充電制御部１４１と、嵌合状態判定部１４２とを有する。処理部１４は、マイクロコンピュータ等の演算処理装置から構成される。処理部１４は、プログラムファイルや各種データを記憶してもよく、演算に必要な一時記憶してもよい。充電制御部１４１及び嵌合状態判定部１４２は、それぞれ論理構造としての表示であり、単一のハードウェアから構成されてもよく、別個のハードウェアから構成されてもよい。 The processing unit 14 includes a charge control unit 141 and a fitting state determination unit 142. The processing unit 14 includes an arithmetic processing device such as a microcomputer. The processing unit 14 may store program files and various types of data, or may temporarily store them necessary for calculation. Each of the charging control unit 141 and the fitting state determination unit 142 is a display as a logical structure, and may be configured by a single hardware or may be configured by separate hardware.
　検知端子Ｔ１４は、検知線ＤＬ１を介して処理部１４に接続される。検知端子Ｔ１４には、嵌合状態判定部１４２により、ロックリリースボタン２２の操作状態に連動する嵌合検知信号が発生する。嵌合状態判定部１４２は、嵌合検知信号の電圧を検知することにより、受電コネクタ１１と給電コネクタ２１とのロックの状態を検知することができる。すなわち、受電コネクタ１１は、検知線ＤＬ１を介して、検知端子Ｔ１４に発生する嵌合検知信号を嵌合状態判定部１４２に出力する。 The detection terminal T14 is connected to the processing unit 14 via the detection line DL1. At the detection terminal T14, the fitting state determination unit 142 generates a fitting detection signal that is linked to the operation state of the lock release button 22. The fitting state determination unit 142 can detect the lock state between the power receiving connector 11 and the power feeding connector 21 by detecting the voltage of the fitting detection signal. That is, the power receiving connector 11 outputs a fitting detection signal generated at the detection terminal T14 to the fitting state determination unit 142 via the detection line DL1.
　例えば、受電コネクタ１１と給電コネクタ２１とがロックされ、開閉器２２１が閉状態となる場合、検知端子Ｔ１４は抵抗ＲＣを介して接地されるので、嵌合状態判定部１４２により検知される嵌合検知信号の電圧は、開閉器２２１が開状態のときよりも低くなる。ロックリリースボタン２２が操作され、開閉器２２１が開状態となる場合、嵌合検知信号の電圧は、開閉器２２１が閉状態のときよりも高くなる。 For example, when the power receiving connector 11 and the power feeding connector 21 are locked and the switch 221 is closed, the detection terminal T14 is grounded via the resistor RC, so that the fitting detected by the fitting state determination unit 142 The voltage of the detection signal is lower than when the switch 221 is in the open state. When the lock release button 22 is operated and the switch 221 is opened, the voltage of the fitting detection signal is higher than when the switch 221 is closed.
　充電回路１３は、電力線ＰＬ１１，ＰＬ１２を介して、電力端子Ｔ１１，Ｔ１２にそれぞれ接続される。充電回路１３は、充電制御部１４１の制御に応じて、給電コネクタ２１及び受電コネクタ１１を介して給電装置２から供給される電力を所定の直流電圧に変換して電源部１５に供給することにより、電源部１５を充電する。充電回路１３は、電力端子Ｔ１１，Ｔ１２を介して給電装置２から電力が供給されていることを示す給電検知信号を嵌合状態判定部１４２に出力する。 Charging circuit 13 is connected to power terminals T11 and T12 via power lines PL11 and PL12, respectively. The charging circuit 13 converts the power supplied from the power feeding device 2 through the power feeding connector 21 and the power receiving connector 11 into a predetermined DC voltage and supplies the power to the power source 15 under the control of the charging control unit 141. The power supply unit 15 is charged. The charging circuit 13 outputs a power feeding detection signal indicating that power is being supplied from the power feeding device 2 to the fitting state determination unit 142 via the power terminals T11 and T12.
　嵌合状態判定部１４２は、通信線ＣＬ１，ＣＬ２及びダイオードＤ１を介して、給電制御部２４から通信信号を受信することにより、給電制御部２４と通信する。通信端子Ｔ１５は、通信線ＣＬ１を介してダイオードＤ１のアノード側に接続される。ダイオードＤ１のカソード側は、ノードＮ１を介して嵌合状態判定部１４２に接続される。 The fitting state determination unit 142 communicates with the power supply control unit 24 by receiving a communication signal from the power supply control unit 24 via the communication lines CL1 and CL2 and the diode D1. The communication terminal T15 is connected to the anode side of the diode D1 via the communication line CL1. The cathode side of the diode D1 is connected to the fitting state determination unit 142 via the node N1.
　接地端子Ｔ１３は、接地線ＧＬ１を介して電動車両１の接地電位ＧＮＤに接続される。接地線ＧＬ１とノードＮ１との間には、互いに直列に接続されたスイッチＳＷ２及び抵抗Ｒ２と、抵抗Ｒ３とが互いに並列に接続される。スイッチＳＷ２及び抵抗Ｒ２，Ｒ３は、充電制御部１４１によりスイッチＳＷ２が開閉されることにより、ノードＮ１における通信信号の電位を調整する。 The ground terminal T13 is connected to the ground potential GND of the electric vehicle 1 through the ground line GL1. Between the ground line GL1 and the node N1, a switch SW2, a resistor R2, and a resistor R3 connected in series with each other are connected in parallel with each other. The switch SW2 and the resistors R2 and R3 adjust the potential of the communication signal at the node N1 when the switch SW2 is opened and closed by the charge control unit 141.
　図２に示すように、電動車両１は、電源部１５から供給された直流電力を交流電力に変換するインバータ１８１と、インバータ１８１により変換された電力により駆動する駆動部１８２と、インバータ１８１の動作を制御する車両制御部１２とを更に備える。 As shown in FIG. 2, the electric vehicle 1 includes an inverter 181 that converts DC power supplied from the power supply unit 15 into AC power, a drive unit 182 that is driven by the power converted by the inverter 181, and operations of the inverter 181. And a vehicle control unit 12 for controlling the vehicle.
　駆動部１８２は、駆動することにより電動車両１の車輪（図示省略）を回転させる三相モータ等から構成される。駆動部１８２は、インバータ１８１から電力を供給されて回転することにより電動車両１を走行させる電動機又は回転することにより発生した電力をインバータ１８１に出力する発電機として機能する。 The driving unit 182 includes a three-phase motor that rotates wheels (not shown) of the electric vehicle 1 by driving. The drive unit 182 functions as a motor that drives the electric vehicle 1 by being supplied with electric power from the inverter 181 and rotates, or a generator that outputs electric power generated by the rotation to the inverter 181.
　インバータ１８１は、車両制御部１２の制御に応じて複数のスイッチング素子がスイッチングを行うことにより三相交流を生成する。また、インバータ１８１は、駆動部１８２が発生した電力を電源部１５に出力することにより電源部１５を充電することができる。 The inverter 181 generates a three-phase alternating current by switching a plurality of switching elements according to the control of the vehicle control unit 12. The inverter 181 can charge the power supply unit 15 by outputting the power generated by the drive unit 182 to the power supply unit 15.
　また、充電回路１３は、電力線ＰＬ１１，ＰＬ１２の間の電気的状態を検出する電気的状態検出部１６と、電力線ＰＬ１１，ＰＬ１２と電源部１５との間を開閉するリレー部（開閉部）１７とを備える。 The charging circuit 13 includes an electrical state detection unit 16 that detects an electrical state between the power lines PL11 and PL12, and a relay unit (opening / closing unit) 17 that opens and closes between the power lines PL11 and PL12 and the power supply unit 15. Is provided.
　電気的状態検出部１６は、両端が電力線ＰＬ１１，ＰＬ１２にそれぞれ接続された電圧計１６１を備える。電気的状態検出部１６は、電圧計１６１により電力端子Ｔ１１，Ｔ１２の間の電圧値を電気的状態として検出し、検出された電圧値を車両制御部１２に送信する。電気的状態検出部１６は、両端が電力線ＰＬ１１，ＰＬ１２にそれぞれ接続された電流計を備え、検出された電流値を電気的状態として車両制御部１２に送信するようにしてもよい。 Electrical state detection unit 16 includes voltmeter 161 having both ends connected to power lines PL11 and PL12, respectively. The electrical state detection unit 16 detects the voltage value between the power terminals T11 and T12 as an electrical state by the voltmeter 161 and transmits the detected voltage value to the vehicle control unit 12. The electrical state detection unit 16 may include ammeters whose both ends are connected to the power lines PL11 and PL12, respectively, and may transmit the detected current value to the vehicle control unit 12 as an electrical state.
　リレー部１７は、それぞれ、一端が電力線ＰＬ１１，ＰＬ１２に接続され、他端が電源部１５に接続された一対のリレー１７１，１７２を備える。リレー１７１，１７２は、それぞれ、車両制御部１２の制御に応じて接点対の間を電気的に開閉することにより、電力線ＰＬ１１，ＰＬ１２と電源部１５との間開閉する。リレー１７１，１７２は、車両制御部１２の制御に応じて、それぞれ個別に駆動することができる。 The relay unit 17 includes a pair of relays 171 and 172 having one end connected to the power lines PL11 and PL12 and the other end connected to the power supply unit 15, respectively. Relays 171 and 172 open and close between power lines PL <b> 11 and PL <b> 12 and power supply unit 15 by electrically opening and closing between contact pairs in accordance with the control of vehicle control unit 12. Relays 171 and 172 can be individually driven according to the control of vehicle control unit 12.
　電源部１５は、蓄電池１５４と、それぞれ一端が蓄電池１５４の正極及び負極に接続され、他端がリレー１７１，１７２に接続された一対のメインリレー１５１，１５２とを備える。メインリレー１５１，１５２は、電動車両１の非走行時及び電源部１５の非充電時において開状態にされ、電動車両１の走行時及び電源部１５の充電時において閉状態に制御される。メインリレー１５１，１５２は、車両制御部１２の制御に応じて、それぞれ個別に駆動することができる。 The power supply unit 15 includes a storage battery 154 and a pair of main relays 151 and 152 each having one end connected to the positive electrode and the negative electrode of the storage battery 154 and the other end connected to the relays 171 and 172. The main relays 151 and 152 are controlled to be opened when the electric vehicle 1 is not traveling and when the power supply unit 15 is not charged, and are controlled to be closed when the electric vehicle 1 is traveling and when the power supply unit 15 is charged. The main relays 151 and 152 can be individually driven according to the control of the vehicle control unit 12.
　また、電源部１５は、互いに直列に接続された抵抗Ｒ４及びリレー１５３が、メインリレー１５１に対して並列に接続される。抵抗Ｒ４及びリレー１５３は、大電流によるメインリレー１５１，１５２の溶着を防止するプリチャージ回路として機能する。 In the power supply unit 15, a resistor R4 and a relay 153 connected in series with each other are connected in parallel to the main relay 151. The resistor R4 and the relay 153 function as a precharge circuit that prevents the main relays 151 and 152 from being welded by a large current.
　蓄電池１５４は、給電コネクタ２１と受電コネクタ１１とが嵌合した状態ロックされ、給電装置２から電力を供給されることにより、蓄電する。蓄電池１５４は、例えば、ニッケル水素電池やリチウムイオン電池等から構成される。 The storage battery 154 is locked when the power supply connector 21 and the power reception connector 11 are fitted, and stores power by being supplied with power from the power supply device 2. The storage battery 154 is composed of, for example, a nickel metal hydride battery or a lithium ion battery.
　車両制御部１２は、マイクロコンピュータ等の演算処理装置から構成される。車両制御部１２は、プログラムファイルや各種データを記憶してもよく、演算に必要な一時記憶してもよい。車両制御部１２は、例えばユーザの電動車両１に対する操作に応じて、インバータ１８１の駆動を制御することにより、駆動部１８２を駆動して電動車両１を走行させる。すなわち、電動車両１は、車両制御部１２の制御に応じて、電源部１５の電力を駆動力として走行する。 The vehicle control unit 12 includes an arithmetic processing device such as a microcomputer. The vehicle control unit 12 may store program files and various data, or may temporarily store them necessary for calculation. The vehicle control unit 12 drives the drive unit 182 to drive the electric vehicle 1 by controlling the drive of the inverter 181 according to, for example, a user operation on the electric vehicle 1. That is, the electric vehicle 1 travels using the electric power of the power supply unit 15 as a driving force under the control of the vehicle control unit 12.
　車両制御部１２は、リレー部１７を制御することにより、リレー１７１，１７２のそれぞれの開閉状態を切り替え、給電装置２から供給された電力を電源部１５に中継させる。車両制御部１２は、電源部１５の充電時においてリレー１７１，１７２を閉状態に、非充電時においてリレー１７１，１７２を開状態に制御する。 The vehicle control unit 12 controls the relay unit 17 to switch between the open / closed states of the relays 171 and 172 and relay the power supplied from the power feeding device 2 to the power supply unit 15. The vehicle control unit 12 controls the relays 171 and 172 to be closed when the power supply unit 15 is charged, and controls the relays 171 and 172 to be open when not charged.
　車両制御部１２は、電動車両１の速度及び加速度等の走行状態を検出する。車両制御部１２は、例えば、インバータ１８１から駆動部１８２の駆動状態（制御状態）を取得し、駆動部１８２の駆動状態から電動車両１の速度を検出する。また、車両制御部１２は、所定時間前の時刻から現在時刻までの移動距離及び速度から、電動車両１の加速度又は減速度を検出する。車両制御部１２は、電動車両１に搭載された加速度センサ又は速度計（図示省略）から電動車両１の速度又は加速度（減速度）を検出するようにしてもよい。 The vehicle control unit 12 detects a traveling state such as the speed and acceleration of the electric vehicle 1. For example, the vehicle control unit 12 acquires the drive state (control state) of the drive unit 182 from the inverter 181 and detects the speed of the electric vehicle 1 from the drive state of the drive unit 182. Moreover, the vehicle control part 12 detects the acceleration or deceleration of the electric vehicle 1 from the moving distance and speed from the time before the predetermined time to the current time. The vehicle control unit 12 may detect the speed or acceleration (deceleration) of the electric vehicle 1 from an acceleration sensor or a speedometer (not shown) mounted on the electric vehicle 1.
　また、車両制御部１２は、電動車両１の走行状態が所定の状態となった場合において、リレー部１７の状態を診断する。車両制御部１２は、リレー１７１，１７２のそれぞれの開閉状態を切り替え、電気的状態検出部１６により検出された電気的状態に基づいて、リレー部１７の溶着又は閉状態とならない開放故障等を検知する。 Further, the vehicle control unit 12 diagnoses the state of the relay unit 17 when the traveling state of the electric vehicle 1 becomes a predetermined state. The vehicle control unit 12 switches between the open / closed states of the relays 171 and 172 and detects an open failure or the like in which the relay unit 17 is not welded or closed based on the electrical state detected by the electrical state detection unit 16. To do.
（嵌合状態判定方法）
　以下、図３のフローチャートを用いて、嵌合状態判定装置１０において給電コネクタ２１と受電コネクタ１１との嵌合状態を判定する嵌合状態判定方法の一例を説明する。 (Fitting state judgment method)
Hereinafter, an example of the fitting state determination method for determining the fitting state between the power feeding connector 21 and the power receiving connector 11 in the fitting state determination device 10 will be described with reference to the flowchart of FIG. 3.
　ステップＳ１０１において、嵌合状態判定部１４２は、受電コネクタ１１からの嵌合検知信号及び充電回路１３からの給電検知信号の入力処理を開始する。嵌合状態判定部１４２は、電気的状態検出部１６より取得される電力端子Ｔ１１，Ｔ１２間の電気的状態を給電検知信号として入力するようにしてもよい。また、ステップＳ１０２において、嵌合状態判定部１４２は、給電装置２との通信処理を開始する。 In step S <b> 101, the fitting state determination unit 142 starts input processing of a fitting detection signal from the power receiving connector 11 and a power feeding detection signal from the charging circuit 13. The fitting state determination unit 142 may input the electrical state between the power terminals T11 and T12 acquired from the electrical state detection unit 16 as a power feeding detection signal. In step S <b> 102, the fitting state determination unit 142 starts communication processing with the power supply device 2.
　ステップＳ１０３において、嵌合状態判定部１４２は、ステップＳ１０１において入力した嵌合検知信号が、給電コネクタ２１と受電コネクタ１１とのロックが解除されていることを示す非嵌合状態か否かを判断する。嵌合状態判定部１４２は、非嵌合状態と判断する場合、ステップＳ１０４に処理を進め、非嵌合状態でないと判断する場合、ステップＳ１１０において、給電コネクタ２１と受電コネクタ１１とが嵌合した状態でロックされる完全嵌合状態である判定する。 In step S103, the fitting state determination unit 142 determines whether or not the fitting detection signal input in step S101 is a non-fitting state indicating that the lock between the power supply connector 21 and the power receiving connector 11 is released. To do. When it is determined that the mating state determination unit 142 is in a non-fitting state, the process proceeds to step S104. It is determined that the state is a completely fitted state locked in a state.
　ステップＳ１０４において、嵌合状態判定部１４２は、給電装置２との通信又は通信に用いる通信回路、及び給電装置２から電力が供給される充電回路１３に異常があるか否かを判断する。嵌合状態判定部１４２は、異常がないと判断する場合、ステップＳ１０５に処理を進め、異常があると判断する場合、ステップＳ１０９において、給電コネクタ２１と受電コネクタ１１とが嵌合していない非嵌合状態であると判定する。 In step S <b> 104, the fitting state determination unit 142 determines whether or not there is an abnormality in the communication circuit used for communication with the power supply device 2 or the communication circuit and the charging circuit 13 to which power is supplied from the power supply device 2. When it is determined that there is no abnormality, the fitting state determination unit 142 proceeds to step S105. When it is determined that there is an abnormality, the power supply connector 21 and the power receiving connector 11 are not fitted in step S109. It determines with it being a fitting state.
　ステップＳ１０５において、嵌合状態判定部１４２は、電動車両１と給電装置２との間の通信が成立しているか否かを判断する。嵌合状態判定部１４２は、例えば、給電装置２からのノードＮ１における通信信号が、ＰＷＭ信号における発振を有する、又は、ＣＡＮ信号として有効である場合において、通信が成立していると判断する。嵌合状態判定部１４２は、通信が成立していると判断する場合、ステップＳ１０６に処理を進め、成立していないと判断する場合、ステップＳ１０７に処理を進める。 In step S105, the fitting state determination unit 142 determines whether communication between the electric vehicle 1 and the power feeding device 2 is established. The fitting state determination unit 142 determines that communication is established, for example, when the communication signal at the node N1 from the power supply apparatus 2 has oscillation in the PWM signal or is valid as a CAN signal. When it is determined that the communication is established, the fitting state determination unit 142 proceeds to step S106, and when it is determined that the communication is not established, the process proceeds to step S107.
　ステップＳ１０６において、嵌合状態判定部１４２は、給電コネクタ２１と受電コネクタ１１との嵌合状態を、半嵌合状態であると判定する。なお、本発明において、半嵌合状態とは、給電コネクタ２１と受電コネクタ１１とが嵌合しているが、ロックが解除されており、不完全な嵌合状態であることを意味する。 In step S106, the fitting state determination unit 142 determines that the fitting state between the power feeding connector 21 and the power receiving connector 11 is a half-fitting state. In the present invention, the half-fitted state means that the power feeding connector 21 and the power receiving connector 11 are fitted, but the lock is released and the fitting state is incomplete.
　ステップＳ１０７において、嵌合状態判定部１４２は、給電装置２からのノードＮ１にける通信信号の電圧レベルが有効か否かを判断する。嵌合状態判定部１４２は、例えば、通信信号の電圧振幅又は電圧値が所定の閾値以上の場合において、電圧レベルが有効であると判断する。嵌合状態判定部１４２は、電圧レベルが有効と判断する場合、ステップＳ１０６に処理を進め、有効でないと判断する場合、ステップＳ１０８に処理を進める。 In step S107, the fitting state determination unit 142 determines whether or not the voltage level of the communication signal from the power supply apparatus 2 at the node N1 is valid. For example, the fitting state determination unit 142 determines that the voltage level is valid when the voltage amplitude or voltage value of the communication signal is equal to or greater than a predetermined threshold. When the fitting state determination unit 142 determines that the voltage level is valid, the process proceeds to step S106, and when it is determined that the voltage level is not valid, the process proceeds to step S108.
　ステップＳ１０８において、嵌合状態判定部１４２は、給電検知信号により、充電回路１３が給電装置２から電力を供給されているか否かを判断する。嵌合状態判定部１４２は、電力の供給があると判断する場合、ステップＳ１０６に処理を進め、電力の供給がないと判断する場合、ステップＳ１０９に処理を進める。 In step S108, the fitting state determination unit 142 determines whether or not the charging circuit 13 is supplied with power from the power supply device 2 based on the power supply detection signal. When it is determined that there is power supply, the fitting state determination unit 142 proceeds to step S106, and when it is determined that there is no power supply, the process proceeds to step S109.
　例えば、図４に示すように、時刻ｔ０において、給電コネクタ２１と受電コネクタ１１とが嵌合した状態でロックされ、開閉器２２１が閉状態となっている場合、嵌合検出信号は、ロックが解除されている場合よりも低い電圧（ロー）となる。このとき、給電コネクタ２１と受電コネクタ１１との各端子の電気的な接続状態は、嵌合状態判定部１４２により有効と判断される。よって、嵌合状態判定部１４２は、嵌合検出信号と、給電コネクタ２１と受電コネクタ１１との電気的な接続状態とに基づいて、給電コネクタ２１と受電コネクタ１１との嵌合状態を完全嵌合状態であると判定する。 For example, as shown in FIG. 4, at time t 0, the power supply connector 21 and the power receiving connector 11 is locked in the fitted state, if the switch 221 is in the closed state, the fitting detection signal Lock The voltage (low) is lower than when the is released. At this time, the electrical connection state of each terminal of the power feeding connector 21 and the power receiving connector 11 is determined to be valid by the fitting state determination unit 142. Therefore, the fitting state determination unit 142 completely fits the fitting state between the power feeding connector 21 and the power receiving connector 11 based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
　なお、嵌合状態判定部１４２は、通信線ＣＬ１による給電装置２との通信が成立していること、通信線ＣＬ１における通信信号の電圧レベルが有効であること、及び、充電回路１３が給電装置２から電力を供給されていることのいずれかを満たす場合において、給電コネクタ２１と受電コネクタ１１との電気的な接続状態を有効であると判断する。すなわち、嵌合状態判定部１４２は、図３のステップＳ１０５においてＹＥＳ、ステップＳ１０７においてＹＥＳ、ステップＳ１０８においてＹＥＳのいずれかを満たす場合において、給電コネクタ２１と受電コネクタ１１との電気的な接続状態を有効であると判断する。 Note that the fitting state determination unit 142 indicates that the communication with the power supply device 2 is established through the communication line CL1, the voltage level of the communication signal in the communication line CL1 is valid, and the charging circuit 13 is the power supply device. 2, it is determined that the electrical connection state between the power feeding connector 21 and the power receiving connector 11 is valid. That is, the fitting state determination unit 142 determines the electrical connection state between the power feeding connector 21 and the power receiving connector 11 when either YES in step S105 of FIG. 3, YES in step S107, or YES in step S108 is satisfied. Judged to be valid.
　時刻ｔ１において、ロックリリースボタン２２が操作され、給電コネクタ２１と受電コネクタ１１とが嵌合した状態のままロックが解除され、開閉器２２１が開状態となっている場合、嵌合検出信号は、ロックされている場合よりも高い電圧（ハイ）となる。このとき、給電コネクタ２１と受電コネクタ１１との各端子の電気的な接続状態は、嵌合状態判定部１４２により有効と判断される。よって、嵌合状態判定部１４２は、嵌合検出信号と、給電コネクタ２１と受電コネクタ１１との電気的な接続状態とに基づいて、給電コネクタ２１と受電コネクタ１１との嵌合状態を半嵌合状態であると判定する。 At time t 1, is locked release button 22 is operated, the lock is released in the state where the power supply connector 21 and the receiving connector 11 is fitted, if the switch 221 is in the open state, the fitting detection signal The voltage is higher (high) than when the lock is applied. At this time, the electrical connection state of each terminal of the power feeding connector 21 and the power receiving connector 11 is determined to be valid by the fitting state determination unit 142. Therefore, the fitting state determination unit 142 half-fits the fitting state between the power feeding connector 21 and the power receiving connector 11 based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
　時刻ｔ２において、給電コネクタ２１が抜き取られた場合、嵌合検出信号は、高い電圧（ハイ）を維持する。このとき、給電コネクタ２１と受電コネクタ１１との各端子の電気的な接続状態は、嵌合状態判定部１４２により無効と判断される。よって、嵌合状態判定部１４２は、嵌合検出信号と、給電コネクタ２１と受電コネクタ１１との電気的な接続状態とに基づいて、給電コネクタ２１と受電コネクタ１１との嵌合状態を非嵌合状態であると判定する。　 In time t 2, the case where the power supply connector 21 is pulled out, the fitting detection signal maintains a high voltage (high). At this time, the electrical connection state of each terminal of the power feeding connector 21 and the power receiving connector 11 is determined to be invalid by the fitting state determination unit 142. Therefore, the fitting state determination unit 142 determines that the fitting state between the power feeding connector 21 and the power receiving connector 11 is not fitted based on the fitting detection signal and the electrical connection state between the power feeding connector 21 and the power receiving connector 11. It is determined that it is in the combined state.
（半嵌合状態における制御）
　以下、図５のフローチャートを用いて、嵌合状態判定装置１０において給電コネクタ２１と受電コネクタ１１との嵌合状態が半嵌合状態と判定された場合、電動車両１に対して制御を行う処理の一例を説明する。図４のフローチャートに示す一連の処理は、図２のフローチャートのステップＳ１０６に示す処理の後に行われてもよく、図２のフローチャートの一連の処理と平行して別ルーチンで行われてもよい。 (Control in half-fitted state)
Hereinafter, using the flowchart of FIG. 5, when the fitting state determination device 10 determines that the fitting state between the power feeding connector 21 and the power receiving connector 11 is a half-fitting state, a process of controlling the electric vehicle 1. An example will be described. The series of processes shown in the flowchart of FIG. 4 may be performed after the process shown in step S106 of the flowchart of FIG. 2, or may be performed in a separate routine in parallel with the series of processes of the flowchart of FIG.
　ステップＳ２０１において、嵌合状態判定部１４２は、半嵌合状態と判定する場合の制御に関する一連の処理を開始する。ステップＳ２０２において、嵌合状態判定部１４２は、充電制御部１４１の制御状態から、現在、充電回路１３が蓄電池１５４を充電しているか否かを判断する。嵌合状態判定部１４２は、蓄電池１５４を充電中の場合、ステップＳ２０３に処理を進め、充電中でない場合、ステップＳ２０６に処理を進める。 In step S201, the fitting state determination unit 142 starts a series of processes related to the control in the case of determining the half-fitting state. In step S <b> 202, the fitting state determination unit 142 determines whether the charging circuit 13 is currently charging the storage battery 154 from the control state of the charging control unit 141. The fitting state determination unit 142 proceeds to step S203 when the storage battery 154 is being charged, and proceeds to step S206 when not being charged.
　ステップＳ２０３において、嵌合状態判定部１４２は、給電コネクタ２１と受電コネクタ１１との嵌合状態が検知（判定）可能か否かを判断する。嵌合状態判定部１４２は、嵌合状態を検知可能である場合、ステップＳ２０４に処理を進め、検知可能でない場合、ステップＳ２０９に処理を進める。 In step S203, the fitting state determination unit 142 determines whether the fitting state between the power supply connector 21 and the power receiving connector 11 can be detected (determined). If the fitting state can be detected, the fitting state determination unit 142 proceeds to step S204. If not, the fitting state determination unit 142 proceeds to step S209.
　ステップＳ２０４において、嵌合状態判定部１４２は、給電コネクタ２１と受電コネクタ１１との嵌合状態が半嵌合状態と判定されるか否かを判定する。嵌合状態判定部１４２は、半嵌合状態と判定する場合、ステップＳ２０５に処理を進め、半嵌合状態でないと判定する場合、処理を終了する。 In step S204, the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 is determined as the half-fitting state. The fitting state determination unit 142 proceeds to step S205 when determining the half-fitted state, and ends the process when determining that it is not the half-fitted state.
　ステップＳ２０５において、嵌合状態判定部１４２は、充電制御部１４１により、充電回路１３に対してフェールセーフ制御を行う。充電制御部１４１は、充電回路１３に対するフェールセーフ制御として、蓄電池１５４が充電中の間、リレー部１７を継続して閉状態にする。このとき、充電制御部１４１は、リレー部１７を閉状態としたまま電源部１５への電力の供給を停止して蓄電池１５４の充電を停止する、又は、蓄電池１５４の充電を継続するようにすればよい。 In step S <b> 205, the fitting state determination unit 142 performs fail-safe control on the charging circuit 13 by the charging control unit 141. As the fail-safe control for the charging circuit 13, the charging control unit 141 keeps the relay unit 17 closed while the storage battery 154 is being charged. At this time, the charging control unit 141 stops the supply of power to the power supply unit 15 while keeping the relay unit 17 in the closed state, and stops the charging of the storage battery 154, or continues the charging of the storage battery 154. That's fine.
　ステップＳ２０６において、嵌合状態判定部１４２は、給電コネクタ２１と受電コネクタ１１との嵌合状態が検知（判定）可能か否かを判断する。嵌合状態判定部１４２は、嵌合状態を検知可能である場合、ステップＳ２０７に処理を進め、検知可能でない場合、ステップＳ２０９に処理を進める。 In step S206, the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 can be detected (determined). If the fitting state can be detected, the fitting state determination unit 142 proceeds to step S207. If not, the fitting state determination unit 142 proceeds to step S209.
　ステップＳ２０７において、嵌合状態判定部１４２は、給電コネクタ２１と受電コネクタ１１との嵌合状態が半嵌合状態と判定されるか否かを判定する。嵌合状態判定部１４２は、半嵌合状態と判定する場合、ステップＳ２０８に処理を進め、半嵌合状態でないと判定する場合、処理を終了する。 In step S207, the fitting state determination unit 142 determines whether or not the fitting state between the power feeding connector 21 and the power receiving connector 11 is determined as the half-fitting state. The fitting state determination unit 142 proceeds to step S208 when determining the half-fitted state, and ends the process when determining that it is not the half-fitted state.
　ステップＳ２０８において、嵌合状態判定部１４２は、車両制御部１２により、電動車両１に対してフェールセーフ制御を行う。車両制御部１２は、電動車両１に対するフェールセーフ制御として、電動車両１の走行を禁止する。 In step S208, the fitting state determination unit 142 performs fail-safe control on the electric vehicle 1 by the vehicle control unit 12. The vehicle control unit 12 prohibits traveling of the electric vehicle 1 as fail-safe control for the electric vehicle 1.
　ステップＳ２０９において、嵌合状態判定部１４２は、充電制御部１４１により、充電回路１３に対して所定の制限を設けた上で、蓄電池１５４への充電を許可する。所定の制限は、例えば、給電装置２から給電される電圧の上限、充電時間の上限、キーによる認証等である。 In step S <b> 209, the fitting state determination unit 142 allows the charging to the storage battery 154 after setting a predetermined restriction on the charging circuit 13 by the charging control unit 141. The predetermined restriction is, for example, an upper limit of the voltage supplied from the power supply device 2, an upper limit of the charging time, authentication with a key, or the like.
　本発明の実施の形態に係る嵌合状態判定装置１０によれば、ロックリリースボタン２２の操作状態に連動する嵌合検知信号と、給電コネクタ２１と受電コネクタ１１との電気的な接続状態とに基づいて、コネクタ間の嵌合状態を判定する。嵌合状態判定装置１０は、嵌合検知信号がコネクタ間のロックが解除されていることを示し、且つ、コネクタ間の電気的な接続状態が有効である場合において、給電コネクタ２１と受電コネクタ１１との嵌合状態を半嵌合であると判定する。これにより、嵌合状態判定装置１０は、簡単な構成でコネクタ間の半嵌合状態を判定することができる。 According to the fitting state determination device 10 according to the embodiment of the present invention, the fitting detection signal interlocked with the operation state of the lock release button 22 and the electrical connection state between the power feeding connector 21 and the power receiving connector 11 are obtained. Based on this, the fitting state between the connectors is determined. The fitting state determination device 10 indicates that the fitting detection signal indicates that the lock between the connectors is released, and when the electrical connection state between the connectors is valid, the power feeding connector 21 and the power receiving connector 11. Is determined to be half-fitted. Thereby, the fitting state determination apparatus 10 can determine the half-fitting state between the connectors with a simple configuration.
　また、嵌合状態判定装置１０によれば、充電回路１３が蓄電池１５４を充電していない間に、嵌合状態判定部１４２が嵌合状態を半嵌合と判定する場合、フェール制御として電動車両１の走行を禁止する。これにより、嵌合状態判定装置１０は、給電コネクタ２１が受電コネクタ１１に差し込まれたまま電動車両１が走行することを防止することができる。 Moreover, according to the fitting state determination apparatus 10, when the fitting state determination part 142 determines that a fitting state is a half-fitting while the charging circuit 13 is not charging the storage battery 154, it is an electric vehicle as fail control. 1 is prohibited. Thereby, the fitting state determination apparatus 10 can prevent the electric vehicle 1 from traveling while the power feeding connector 21 is inserted into the power receiving connector 11.
　また、嵌合状態判定装置１０によれば、充電回路１３が蓄電池１５４を充電している間に、嵌合状態判定部１４２が嵌合状態を半嵌合と判定する場合、フェール制御として蓄電池１５４の充電中にリレー１７１，１７２を継続して閉状態にする。嵌合状態判定装置１０は、リレー部１７が高電圧において開閉することを防止し、リレー部１７の耐久性の急激な低下を防止することができる。また、嵌合状態判定装置１０は、ロック機構が故障した場合であっても、安全に充電を継続することができる。 Further, according to the fitting state determination device 10, when the fitting state determination unit 142 determines that the fitting state is half-fitting while the charging circuit 13 is charging the storage battery 154, the storage battery 154 is used as fail control. The relays 171 and 172 are continuously closed during charging. The fitting state determination device 10 can prevent the relay unit 17 from opening and closing at a high voltage, and can prevent a sudden decrease in durability of the relay unit 17. Moreover, even if the fitting state determination apparatus 10 is a case where a lock mechanism fails, it can continue charging safely.
　また、嵌合状態判定装置１０によれば、嵌合状態判定部１４２が嵌合状態を判定できない場合、充電回路１３による充電を許可することにより、故障等により嵌合状態が判定できない場合であっても、緊急対応として蓄電池１５４を充電することができる。 Further, according to the fitting state determination device 10, when the fitting state determination unit 142 cannot determine the fitting state, it is a case where the fitting state cannot be determined due to a failure or the like by allowing charging by the charging circuit 13. However, the storage battery 154 can be charged as an emergency response.
　また、嵌合状態判定装置１０によれば、通信線ＣＬ１による給電装置２との通信の成立、通信線ＣＬ１における通信信号の電圧レベルが有効であること、及び、充電回路１３が給電装置２から電力を供給されていることのいずれかを満たす場合において、コネクタ間の電気的な接続状態を有効であると判断する。これにより、嵌合状態判定装置１０は、給電装置２が規格化されていない挙動をしたり、故障していたりしても、半嵌合状態の判定精度を向上することができる。 Moreover, according to the fitting state determination apparatus 10, the establishment of communication with the power feeding apparatus 2 by the communication line CL1, the voltage level of the communication signal in the communication line CL1 is valid, and the charging circuit 13 is connected from the power feeding apparatus 2. In a case where any one of power supply is satisfied, it is determined that the electrical connection state between the connectors is valid. Thereby, the fitting state determination apparatus 10 can improve the determination precision of a semi-fitting state even if the electric power feeder 2 behaves that is not standardized or has failed.
（その他の実施の形態）
　上記のように、本発明は上記の実施の形態によって記載したが、この開示の一部をなす論述及び図面は本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなろう。 (Other embodiments)
As described above, the present invention has been described according to the above-described embodiments. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.
　例えば、既に述べた実施の形態において、嵌合検知信号は、ロックリリースボタン２２が操作されロックが解除された場合において、低電位となる構成としたが、開閉器２２１等の構成に応じて、高電位となるようにしてもよい。このとき、嵌合状態判定部１４２は、嵌合検知信号が高電位であり、且つ、給電コネクタ２１と受電コネクタ１１との電気的な接続状態が有効である場合、給電コネクタ２１と受電コネクタ１１との嵌合状態を半嵌合であると判定する。 For example, in the embodiment already described, the fitting detection signal is configured to have a low potential when the lock release button 22 is operated and the lock is released, but depending on the configuration of the switch 221 and the like, You may make it become a high electric potential. At this time, when the fitting detection signal is at a high potential and the electrical connection state between the power feeding connector 21 and the power receiving connector 11 is valid, the fitting state determination unit 142 has the power feeding connector 21 and the power receiving connector 11. Is determined to be half-fitted.
　このように、本発明はここでは記載していない様々な実施の形態等を含むことは勿論である。したがって、本発明の技術的範囲は上記の説明から妥当な特許請求の範囲に係る発明特定事項によってのみ定められるものである。 Thus, it goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.
　本発明によれば、ロックリリースボタンの操作状態に連動する嵌合検知信号とコネクタ間の電気的な接続状態とに基づいて、簡単にコネクタ間の半嵌合状態を判定ができる嵌合状態判定装置及び嵌合状態判定方法を提供することができる。 According to the present invention, it is possible to easily determine the half-fitted state between the connectors based on the fitting detection signal interlocked with the operation state of the lock release button and the electrical connection state between the connectors. An apparatus and a fitting state determination method can be provided.
　１　電動車両（車両）
　２　給電装置
　１０　嵌合状態判定装置
　１１　受電コネクタ
　１３　充電回路
　１７　リレー部（開閉部）
　２１　給電コネクタ
　２２　ロックリリースボタン
　１４２　嵌合状態判定部
　１５４　蓄電池 1 Electric vehicle (vehicle)
2 Power supply device 10 Fitting state determination device 11 Power receiving connector 13 Charging circuit 17 Relay unit (opening / closing unit)
21 Power Supply Connector 22 Lock Release Button 142 Fitting State Determination Unit 154 Storage Battery

Claims (6)

  1. 　給電装置の給電コネクタと嵌合した状態でロックされ、操作されることにより前記給電コネクタとのロックを解除するロックリリースボタンの操作状態に連動する嵌合検知信号を出力する受電コネクタと、
    　前記嵌合検知信号が前記給電コネクタと前記受電コネクタとのロックが解除されていることを示し、且つ、前記給電コネクタと前記受電コネクタとの電気的な接続状態が有効である場合において、前記給電コネクタと前記受電コネクタとの嵌合状態を半嵌合であると判定する嵌合状態判定部と
    　を備えることを特徴とする嵌合状態判定装置。     A power receiving connector that outputs a fitting detection signal interlocked with an operation state of a lock release button that is locked in a state of being fitted to a power feeding connector of the power feeding device and is unlocked by being operated;
    In the case where the fitting detection signal indicates that the lock between the power feeding connector and the power receiving connector is released, and the electrical connection state between the power feeding connector and the power receiving connector is valid, the power feeding A fitting state determination device comprising: a fitting state determination unit that determines that the fitting state between the connector and the power receiving connector is half-fitting.
  2. 　車両の駆動力として電力を供給する蓄電池を、前記給電コネクタ及び前記受電コネクタを介して前記給電装置から供給される電力により充電する充電回路を更に備え、
    　前記充電回路が前記蓄電池を充電していない間に、前記嵌合状態判定部が前記嵌合状態を半嵌合と判定する場合、前記車両の走行を禁止することを特徴とする請求項１に記載の嵌合状態判定装置。     A storage battery for supplying electric power as a driving force of the vehicle, further comprising a charging circuit for charging with electric power supplied from the power supply device via the power supply connector and the power reception connector;
    2. The vehicle according to claim 1, wherein the vehicle is prohibited from traveling when the fitting state determination unit determines that the fitting state is half-fitting while the charging circuit is not charging the storage battery. The fitting state determination apparatus of description.
  3. 　前記給電装置と蓄電池との間を接続する電力線を開閉する開閉部を有し、前記給電コネクタ及び前記受電コネクタを介して前記給電装置から供給される電力により前記蓄電池を充電する充電回路を更に備え、
    　前記充電回路が前記蓄電池を充電している間に、前記嵌合状態判定部が前記嵌合状態を半嵌合と判定する場合、前記蓄電池の充電中に前記開閉部を継続して閉状態にすることを特徴とする請求項１に記載の嵌合状態判定装置。     The battery pack further includes an opening / closing unit that opens and closes a power line that connects the power supply device and the storage battery, and further includes a charging circuit that charges the storage battery with power supplied from the power supply device via the power supply connector and the power reception connector. ,
    When the fitting state determination unit determines that the fitting state is half-fitting while the charging circuit is charging the storage battery, the opening / closing unit is continuously closed during charging of the storage battery. The fitting state determination device according to claim 1, wherein:
  4. 　前記給電コネクタ及び前記受電コネクタを介して前記給電装置から供給される電力により蓄電池を充電する充電回路を更に備え、
    　前記嵌合状態判定部が前記嵌合状態を判定できない場合、前記充電回路による充電を許可することを特徴とする請求項１に記載の嵌合状態判定装置。     A charging circuit for charging a storage battery with electric power supplied from the power supply device via the power supply connector and the power reception connector;
    The fitting state determination device according to claim 1, wherein when the fitting state determination unit cannot determine the fitting state, charging by the charging circuit is permitted.
  5. 　前記給電コネクタ及び前記受電コネクタを介して前記給電装置から供給される電力により蓄電池を充電する充電回路を更に備え、
    　前記嵌合状態判定部は、前記給電コネクタ及び前記受電コネクタにより接続される専用の通信線により前記給電装置との通信が成立していること、前記通信線における通信信号の電圧レベルが有効であること、及び、前記充電回路が前記給電装置から電力を供給されていることのいずれかを満たす場合において、前記給電コネクタと前記受電コネクタとの電気的な接続状態が有効であると判断することを特徴とする請求項１～４のいずれか１項に記載の嵌合状態判定装置。     A charging circuit for charging a storage battery with electric power supplied from the power supply device via the power supply connector and the power reception connector;
    In the fitting state determination unit, communication with the power feeding device is established by a dedicated communication line connected by the power feeding connector and the power receiving connector, and a voltage level of a communication signal in the communication line is effective. And determining that the electrical connection state between the power feeding connector and the power receiving connector is valid when the charging circuit satisfies any one of the cases where power is supplied from the power feeding device. The fitting state determination device according to any one of claims 1 to 4, characterized in that:
  6. 　給電装置の給電コネクタと、前記給電コネクタの嵌合した状態でロックされる受電コネクタとの嵌合状態を判定する嵌合状態判定方法であって、
    　操作されることにより前記給電コネクタとのロックを解除するロックリリースボタンの操作状態に連動する嵌合検知信号が、前記給電コネクタと前記受電コネクタとのロックが解除されていることを示し、且つ、前記給電コネクタと前記給電コネクタとの電気的な接続状態が有効である場合において、前記給電コネクタと前記受電コネクタとの嵌合状態を半嵌合であると判定すること
    　を含むことを特徴とする嵌合状態判定方法。     A fitting state determination method for determining a fitting state between a power feeding connector of a power feeding device and a power receiving connector locked in a state where the power feeding connector is fitted,
    A fitting detection signal interlocked with an operation state of a lock release button that releases the lock with the power supply connector by being operated indicates that the lock between the power supply connector and the power reception connector is released, and Determining that the fitting state between the power feeding connector and the power receiving connector is half-fitted when the electrical connection state between the power feeding connector and the power feeding connector is valid. Fitting state determination method.
PCT/JP2014/069042 2014-07-17 2014-07-17 Fitting state determination device and fitting state determination method WO2016009526A1 (en)

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