WO2019049338A1 - Power control device and control method for power control device - Google Patents

Power control device and control method for power control device Download PDF

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Publication number
WO2019049338A1
WO2019049338A1 PCT/JP2017/032576 JP2017032576W WO2019049338A1 WO 2019049338 A1 WO2019049338 A1 WO 2019049338A1 JP 2017032576 W JP2017032576 W JP 2017032576W WO 2019049338 A1 WO2019049338 A1 WO 2019049338A1
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WO
WIPO (PCT)
Prior art keywords
battery
terminal
voltage
contactor
drive
Prior art date
Application number
PCT/JP2017/032576
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French (fr)
Japanese (ja)
Inventor
一由希 目黒
雄大 井ノ口
Original Assignee
新電元工業株式会社
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Publication date
Application filed by 新電元工業株式会社 filed Critical 新電元工業株式会社
Priority to PCT/JP2017/032576 priority Critical patent/WO2019049338A1/en
Priority to JP2019540258A priority patent/JP6972140B2/en
Priority to TW107128340A priority patent/TWI678860B/en
Publication of WO2019049338A1 publication Critical patent/WO2019049338A1/en

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    • 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 power control device and a control method of the power control device.
  • an electric two-wheeled vehicle using a motor as a power source is known.
  • this conventional electric motorcycle one battery is used as a power source.
  • an object of the present invention is to provide a power control device capable of executing a failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series.
  • a power control apparatus is: A first positive battery terminal to which the positive electrode of the first battery is connectable, and a first negative battery terminal to which the negative electrode of the first battery is connectable; A second positive battery terminal to which the positive electrode of the second battery is connectable, and a second negative battery terminal to which the negative electrode of the second battery is connectable; A first charging terminal connected to the high potential side output of the charger, to which a voltage on the high potential side of the charger is applied; A second charge terminal connected to the low potential side output of the charger and to which a low potential side voltage of the charger is applied; A first drive voltage terminal connected to the first positive battery terminal; A second drive voltage terminal connected to the second charging terminal; A first rectifier element connected to the first charging terminal and connected to the first positive battery terminal to prevent the backflow of current; A second rectifying element connected to the first charging terminal and connected to the second positive battery terminal for preventing the backflow of current; A first contactor connected between the first negative battery terminal and the second positive battery terminal; A second contactor connected between the
  • the drive control unit After controlling the first contactor to be turned off and controlling the second contactor to be turned off, the first battery is started to output a first battery voltage in a state where no electric charge remains in the capacitor Let After outputting the first battery voltage from the first battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected and detected. If the second contactor is equal to or greater than a preset first threshold voltage, it is determined that the second contactor has a short circuit failure, while the detected first detected voltage is less than the first threshold voltage.
  • the second contactor is not short circuited
  • the second contactor is controlled to be turned on, and then the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is If the detected and detected second detection voltage is less than the first threshold voltage, it is determined that the second contactor has an open failure, while the detected second detection voltage is When the voltage is equal to or higher than the first threshold voltage, it is determined that the second contactor does not have an open failure.
  • the drive control unit If it is determined that the second contactor does not have an open failure, the second contactor is controlled to be turned off, and then the second battery is activated to output a second battery voltage. After outputting the second battery voltage from the second battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected, and a third detection voltage detected If it is equal to or higher than a second threshold voltage higher than the first threshold voltage set in advance, it is determined that the first contactor has a short circuit failure, while the detected third detected voltage If it is less than the second threshold voltage, it is determined that the first contactor is not short circuited, When it is determined that the first contactor does not have a short circuit failure, the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is controlled after the first contactor is controlled to be turned on.
  • the detected and detected fourth detection voltage is less than the second threshold voltage, it is determined that the first contactor has an open failure, while the detected fourth detection voltage is When the voltage is equal to or higher than the second threshold voltage, it is determined that the first contactor does not have an open failure.
  • the drive control unit A motor drive voltage is generated from a voltage between the first drive voltage terminal and the second drive voltage terminal, and the motor is driven by the motor drive voltage. It is characterized by
  • the drive control unit It further comprises a bridge circuit which is supplied with a voltage between the first drive voltage terminal and the second drive voltage terminal and outputs a motor drive voltage to the motor to drive the motor.
  • the drive control unit The bridge circuit discharges the voltage of the capacitor before the first battery is activated in the failure determination mode.
  • a reference battery terminal connected to a positive electrode of a reference battery and supplied with a reference voltage; A reference charging terminal to which the charger can be connected; And a switch circuit having one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power supply terminal, and the drive control unit power supply terminal.
  • the first battery is First charging a voltage between the first positive battery terminal and the first negative battery terminal or discharging a charging voltage between the first positive battery terminal and the first negative battery terminal Cells, and A first management unit activated by the reference voltage supplied to the first battery power supply terminal, monitoring a state of the first cell, and outputting information on the state of the first cell; Equipped
  • the second battery is Second charging the voltage between the second positive battery terminal and the second negative battery terminal or discharging the charging voltage between the second positive battery terminal and the second negative battery terminal Cells, and It starts with the 1st starting voltage supplied from the said drive control part, or the 2nd starting voltage supplied from the said charger, monitors the state of the said 2nd cell, and the information regarding the state of the said 2nd cell And a second management unit that outputs the
  • the drive control unit After being notified by the first management unit that the first battery is normally connected and notified by the second management unit that the second battery is normally connected, It is characterized in that a failure determination mode is executed.
  • the drive control unit supplies a voltage of the first battery and the second battery to a motor in a drive mode after the failure determination mode, and drives the motor. Control the first contactor and the second contactor such that the first battery and the second battery are connected in series so that the second battery and the second battery are connected in series, It is characterized in that the motor is driven.
  • the drive control unit When charging the first battery and the second battery by the charger in the charge mode after the failure determination mode, the drive control unit is configured to transmit the first battery and the second battery. And controlling the first contactor and the second contactor such that the first battery and the second battery are charged in parallel by the charger. .
  • the drive control unit When discharging the first battery and the second battery, the first battery and the second battery are turned on by turning on the first contactor and turning off the second contactor. Connected in series, On the other hand, when charging the first battery and the second battery, the first battery and the second battery are turned off by turning off the first contactor and turning on the second contactor. Are connected in parallel.
  • the configuration of the second battery is characterized by being the same as the configuration of the first battery.
  • the power control device is mounted on an electric two-wheeled vehicle, the motor is connected to a wheel of the electric two-wheeled vehicle, and the drive control unit controls the rotation of the wheel by controlling the driving of the motor. Do.
  • the reference battery is a lead battery
  • the first and second batteries may be lithium batteries.
  • a control method of a power control apparatus The first positive battery terminal to which the positive electrode of the first battery can be connected, the first negative battery terminal to which the negative electrode of the first battery can be connected, and the positive electrode of the second battery A second positive battery terminal that can be connected, and a second negative battery terminal that can be connected to the negative electrode of the second battery, and an output on the high potential side of a charger are connected, the charging A first charging terminal to which the high potential side voltage of the charger is applied, and a second charging terminal to which the low potential side output of the charger is connected and to which the low potential side voltage of the charger is applied A first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and a first node connected to the first charge terminal The second node is connected to the first positive battery terminal, and A first rectifying element for preventing current flow, and a second rectifying element for connecting a first node to the first charging terminal and a second node to the second positive battery
  • a power control apparatus is a first positive battery terminal to which a positive electrode of a first battery is connectable, and a first negative terminal to which a negative electrode of the first battery is connectable.
  • the output of the potential side is connected, the first charging terminal to which the high potential side voltage of the charger is applied, and the output of the low potential side of the charger are connected, the voltage of the low potential side of the charger is applied
  • Second charge terminal a first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and a first node Connected to the charge terminal, the second node is connected to the first positive battery terminal, and
  • a first rectifying element for preventing reverse flow a second rectifying element for connecting the first node to the first charging terminal and the second node to the second positive battery terminal for preventing the reverse flow of current;
  • the first contactor is connected such that the first battery and the second battery are connected in parallel or in series. And determining a failure of at least one of the first contactor and the second contactor based on the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal when controlling the second contactor Do.
  • FIG. 1 is a diagram showing an example of the configuration of a power control apparatus 100 according to the embodiment.
  • FIG. 2 is a diagram for explaining an example of an operation of determining a failure of the second contactor CB of the power control apparatus 100 shown in FIG.
  • FIG. 3 is a diagram for explaining an example of an operation of determining a failure of the first contactor CA of the power control apparatus 100 shown in FIG.
  • FIG. 4 is a diagram showing an example of the operation of the first and second contactors CA, CB and the first and second batteries B1, B2 in the failure determination mode of the power control apparatus 100 shown in FIG.
  • FIG. 1 is a diagram showing an example of the configuration of a power control apparatus 100 according to the embodiment.
  • the mobile battery is two pieces (1st, 2nd battery B1, B2) of the minimum unit is described, when three or more mobile batteries are connected Is also described similarly.
  • the power control apparatus 100 includes a reference battery terminal TK, a reference charging terminal TCS, a first positive battery terminal T1P, and a first negative battery terminal T1N.
  • the power control device 100 is, for example, loaded on an electric two-wheeled vehicle (vehicle).
  • vehicle vehicle
  • the motor M is connected to the wheels of the electric motorcycle.
  • the power control apparatus 100 is started by the voltage of a reference battery (lead battery) K. Then, the power control apparatus 100 generates a motor drive voltage from the voltages of the first and second batteries (Li batteries) B1 and B2, and drives the motor M with this motor drive voltage. Then, the power control device 100 controls the rotation of the wheel by controlling the drive of the motor M.
  • a reference battery lead battery
  • the reference battery terminal TK is connected to the positive electrode of the reference battery K, and is supplied with a reference voltage.
  • the reference battery K is, for example, a lead battery.
  • the first charge terminal TCP is connected to the output on the high potential side of the charger CH, and the voltage on the high potential side of the charger CH is applied.
  • the second charge terminal TCN is connected to the low potential side output of the charger CH, and a voltage on the low potential side of the charger CH is applied.
  • the reference charging terminal TCS is connectable to the charger CH, and is electrically connected to the first battery power supply terminal T1B and the drive control unit power supply terminal TPS1.
  • the charger CH may be connected as long as at least the first and second batteries B1 and B2 are charged, and the electric power control device mounted on the electric motorcycle when the electric motorcycle is traveling as described above. It may be disconnected from 100 (each terminal TCN, TCP, TCOUT, TCS).
  • the first drive voltage terminal TDP is electrically connected to the first positive battery terminal T1P.
  • the second drive voltage terminal TDN is electrically connected to the second charging terminal TCN.
  • the drive control unit power supply terminal TG is electrically connected to the reference charging terminal TCS.
  • the first start-up voltage terminal TPS2 is connected to the drive control unit PDU and is electrically connected to the second battery power supply terminal T2B.
  • the charger CH can be connected to the second start voltage terminal TCOUT, and the second start voltage terminal TCOUT is electrically connected to the second battery power supply terminal T2B.
  • first battery B1 can be connected to the first battery power supply terminal T1B, and the first battery power supply terminal T1B is connected to the other end of the switch circuit SW and the reference charging terminal TCS.
  • the second battery power supply terminal T2B is connectable to the second battery B2, and is connected to the first and second start voltage terminals TPS2 and TCOUT.
  • the first and second batteries B1 and B2 which are mobile batteries are, for example, lithium batteries. That is, the battery voltage (48 V) output by the first and second batteries B1 and B2 is set to be higher than the battery voltage (12 V) which is the reference voltage output by the reference battery K.
  • the positive terminal of the first battery B1 described above can be connected to the first positive battery terminal T1P.
  • the first negative battery terminal T1N is connectable to the negative electrode of the first battery B1.
  • the first battery B1 includes a first cell (a plurality of lithium ion batteries connected in series) S1 and a first management unit BMU1.
  • the first cell S1 charges the voltage between the first positive battery terminal T1P and the first negative battery terminal T1N, or the first positive battery terminal T1P and the first negative battery terminal T1N. And discharge the charge voltage between them.
  • the first management unit BMU1 is activated by the reference voltage supplied to the first battery power supply terminal T1B, and the state (first cell S1) of the first cell S1 (that is, the first battery B1).
  • the identification information of the first battery B1 is set as the initial identification information.
  • the first battery B1 When the first battery B1 is removed from the power control apparatus 100 (for example, each of the terminals T1P, T1N, and T1B), its identification information is reset to the initial identification information.
  • the first management unit BMU1 forcibly contacts the first management contactor T1 for stopping charging / discharging of the first cell S1 according to the state (fault etc.) of the first cell S1.
  • the positive terminal of the second battery B2 described above can be connected to the second positive battery terminal T2P.
  • the second negative battery terminal T2N can be connected to the negative electrode of the second battery B2.
  • the second battery B2 includes a second cell (a plurality of lithium ion batteries connected in series) S2 and a second management unit BMU2.
  • the second cell S2 charges the voltage between the second positive battery terminal T2P and the second negative battery terminal T2N, or the second positive battery terminal T2P and the second negative battery terminal T2N. And discharge the charge voltage between them.
  • the second management unit BMU2 is supplied with the first start voltage supplied from the drive control unit PDU or the second start voltage supplied from the charger CH (that is, supplied to the second battery power supply terminal T2B).
  • the second cell S2 ie, the second battery B2
  • the temperature of the cell S2, the current of the second cell S2, etc. is monitored, and information on the state of the second cell S2 (ie, the second battery B2) is output.
  • the identification information of the second battery B2 is set to the same initial identification information as the identification information of the first battery B1.
  • the second management unit BMU2 forcibly contacts the second management contactor T2 for stopping the charge / discharge of the second cell S2 according to the state (fault etc.) of the second cell S2.
  • the identification information thereof is reset to the initial identification information.
  • the configuration of the second battery B2 is the same as the configuration of the first battery B1 described above.
  • the switch circuit SW has one end connected to the reference battery terminal TK and the other end electrically connected to the reference charging terminal TCS, the first battery power supply terminal T1B, and the drive control unit power supply terminal TPS1.
  • the switch circuit SW is configured to supply the reference voltage of the reference battery K to the drive control unit PDU and the first battery B1, for example, by being turned on.
  • the switch circuit SW is configured to cut off the supply of the reference voltage of the reference battery K to the drive control unit PDU and the first battery B1 by being turned off.
  • the main switch control unit X is supplied with power from the positive electrode of the reference battery K, and controls the switch circuit SW in accordance with the operation (action) of the user.
  • the communication line CAN allows the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N to communicate with the drive control unit PDU (or the charger CH), and The second battery B2 connected to the positive battery terminal T2P and the second negative battery terminal T2N communicate with the drive control unit PDU (or the charger CH).
  • the communication line CAN includes a first communication line CAN1 for the first and second batteries B1 and B2 to transmit data to the drive control unit PDU, a command from the drive control unit PDU or the charger CH, and the like.
  • a second communication line CAN2 for transmitting to the second batteries B1 and B2 is provided.
  • the down regulator DR is configured to step down and output a voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
  • the down regulator DR is, for example, a DC-DC converter that steps down a voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN and outputs the voltage to the load terminal TR to which the load Load is connected. .
  • the reference battery K is charged by the voltage output from the down regulator DR.
  • the load Load includes, for example, any of the lights, blinkers, and indicators of the electric motorcycle described above, and other electronic components necessary for traveling the electric motorcycle and the like.
  • the first node is connected to the first charge terminal TCP
  • the second node is connected to the first positive battery terminal T1P to prevent reverse current flow First diode.
  • the second rectifier element DB has a first node (anode) connected to the first charging terminal TCP, and a second node (cathode) connected to the second positive battery terminal T2P to prevent reverse current flow. Second diode.
  • the first contactor CA is connected between the first negative battery terminal T1N and the second positive battery terminal T2P.
  • the first contactor CA is controlled to be turned on / off by the drive control unit PDU.
  • the second contactor CB is connected between the first negative battery terminal T1N and the second charging terminal TCN.
  • the second contactor CB is controlled to be turned on / off by the drive control unit PDU.
  • the drive control unit PDU generates a motor drive voltage from the voltages of the first battery B1 and the second batteries B1 and B2, and drives the motor by this motor drive voltage. It is supposed to be.
  • the drive control unit PDU controls the rotation of the wheel by controlling the drive of the motor M.
  • the drive control unit PDU includes a capacitor Z connected between a first drive voltage terminal TDP and a second drive voltage terminal TDN, and a first drive voltage terminal TDP.
  • a voltage (voltage of the capacitor Z) between the second drive voltage terminal TDN and the bridge circuit Y which outputs the motor drive voltage to the motor M to drive the motor M is supplied.
  • the drive control unit PDU generates a motor drive voltage by the bridge circuit Y from the voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN, and drives the motor by the motor drive voltage. It is supposed to be.
  • the drive control unit PDU includes data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N via the communication line CAN, and a second positive Data including identification information of the second battery B2 connected to the battery terminal T1P and the second negative battery terminal T2N is received.
  • the drive control unit PDU recognizes the identification information of the first and second batteries B1 and B2, and electrically connects the first battery B1 to the second battery B2 (first and second circuit connections). And the charge and discharge of the first battery B1 and the second battery B2 are controlled.
  • the drive control unit PDU when discharging the first battery B1 and the second battery B2 (when the vehicle is traveling), the drive control unit PDU turns on the first contactor CA and turns off the second contactor CB. Then, the first battery B1 and the second battery B2 are connected in series.
  • the drive control unit PDU turns off the first contactor CA and turns on the second contactor CB. By doing this, the first battery B1 and the second battery B2 are connected in parallel.
  • the drive control unit PDU is supplied with the reference voltage of the reference battery K via the switch circuit SW and starts up.
  • the drive control unit PDU activates the first battery B1 and communicates via the communication line CAN to set identification information of the first battery B1, and then the second battery B2 is The identification information of the second battery B2 is set to be different from the identification information of the first battery B1 by activating and communicating via the communication line CAN.
  • the drive control unit PDU is configured to obtain a plurality of pieces of information from the management units BMU1 and BMU2 via the communication line CAN.
  • the drive control unit PDU determines that the state of the first battery B1 is normal or abnormal based on battery information on the state of the first battery B1 and the second battery B2 output from the management units BMU1 and BMU2. It is determined to be (whether it is broken).
  • the drive control unit PDU stops the drive function of the motor M, for example, all the transistors of the bridge circuit Y are opened, or the high side or low side transistors are shorted. There is.
  • the drive control unit PDU can communicate with the above-described charger CH via the communication line CAN. Then, when the charger CH is connected to the reference charging terminal TCS, the drive control unit PDU supplies the first activation voltage output from the charger CH via the reference charging terminal TCS and the drive control unit power terminal TG. It is supposed to be launched.
  • the charger CH also includes data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N via the communication line CAN, and the second positive Data including identification information of the second battery B2 connected to the battery terminal T1P and the second negative battery terminal T2N is received.
  • the charger CH activates the first battery B1, communicates via the communication line CAN, sets identification information of the first battery B1, and then activates the second battery B2.
  • the identification information of the second battery B2 can be set to be different from the identification information of the first battery B1.
  • the drive control unit PDU supplies the voltage of the first battery B1 and the second battery B2 to the motor after setting the identification information of the first and second batteries B1 and B2 described above, and the motor M is generated.
  • the circuit connection first and second contactors CA, CB
  • the motor M is driven by a voltage in which B1 and the second battery B2 are connected in series.
  • the drive control unit PDU sets the identification information of the first and second batteries B1 and B2, and then sets the first battery B1 and the second battery B1.
  • the circuit connection first and second contactors CA, CB
  • the charger CH charges the first battery B1 and the second battery B2 in parallel in a state where the first battery B1 and the second battery B2 are connected in parallel.
  • FIG. 2 is a diagram for explaining an example of an operation of determining a failure of the second contactor CB of the power control apparatus 100 shown in FIG.
  • FIG. 3 is a diagram for explaining an example of an operation of determining a failure of the first contactor CA of the power control apparatus 100 shown in FIG.
  • FIG. 4 is a diagram showing an example of the operation of the first and second contactors CA and CB and the first and second batteries B1 and B2 in the failure determination mode of the power control apparatus 100 shown in FIG.
  • the drive control unit PDU controls the first contactor CA and the second contactor CB to control the first positive battery terminal T1P and the first negative battery terminal T1N. Control the electrical circuit connection between the first battery B1 and the second battery B2 connected to the second positive battery terminal T2P and the second negative battery terminal T2N, and the first battery B1 and the second battery The charge and discharge of the battery B2 are controlled.
  • the drive control unit PDU is configured such that the first battery B1 and the second battery are connected in parallel or in series in the failure determination mode in which the failure of the first contactor CA and the second contactor CB is determined.
  • the first contactor CA or the second contactor CA is controlled based on a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN when the first contactor CA and the second contactor CB are controlled. At least one failure of the contactor CB is determined.
  • the drive control unit PDU is notified that the first battery B1 is normally connected from the first management unit BMU1 via the communication line CAN, and the second battery from the second management unit BMU2 After being notified that B2 is normally connected, the failure determination mode is executed. Also, this failure determination mode may be executed after the drive control unit PDU confirms that the first rectifier element D1 and the second rectifier element D2 are operating normally.
  • the drive control unit PDU controls the first contactor CA to be off (cutoff state) and controls the second contactor CB to be off (cutoff state)
  • the first battery B1 is activated (turned on) to output the first battery voltage in a state where no charge remains in the capacitor Z (time N1 in FIG. 4).
  • the second battery B2 is not activated (is off).
  • the drive control unit PDU discharges the voltage of the capacitor Z by the bridge circuit Y, for example, before activating the first battery B1 in the failure determination mode.
  • the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN after outputting the first battery voltage from the first battery B1.
  • the drive control unit PDU performs the second contactor. It is determined that CB has a short circuit failure (is in the conductive state despite the fact that the second contactor CB is controlled to be off).
  • the drive control unit PDU does not cause a short circuit failure of the second contactor CB (second contactor CB is controlled to be off and it is determined that the switch is normally shut off.
  • the drive control unit PDU controls the second contactor CB to be on (conductive state) (time N2 in FIG. 4).
  • the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
  • the drive control unit PDU causes an open failure of the second contactor CB (the It is determined that the contactor CB is turned on despite the control of the second contactor CB.
  • the drive control unit PDU does not have an open failure in the second contactor CB (see FIG. It is determined that the second contactor CB is controlled to be on and normally in conduction state).
  • the failure of the second contactor CB can be determined by the control operation of the drive control unit PDU described above.
  • the drive control unit PDU determines that the second contactor CB does not have an open failure in the failure determination mode
  • the second contactor CB is turned off (blocked state) It controls (time N3 of FIG. 4).
  • the drive control unit PDU causes the second battery B2 to be activated (turned on) to output a second battery voltage (for example, as shown in FIG. Time N4 in FIG. 4).
  • the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
  • the drive control unit PDU sets the detected third detection voltage (capacitor voltage) higher than the above-described first threshold voltage (predetermined than the first battery voltage) or higher to the second threshold voltage.
  • the first contactor CA is short-circuited (the first contactor CA is controlled to be off). Regardless, it is determined to be in a conducting state).
  • the drive control unit PDU does not cause a short circuit failure of the first contactor CA (turns off the first contactor CA). Control is determined to be normally shut off).
  • the drive control unit PDU controls the first contactor CA to be on (conductive state) (time N5 in FIG. 4).
  • the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
  • the drive control unit PDU causes an open failure in the first contactor CA (the It is determined that the contactor CA is turned on despite the fact that the contactor CA is turned on.
  • the drive control unit PDU does not have an open failure in the first contactor CB (a first contactor CA is controlled to be on, and it is determined that the circuit is normally conducted).
  • the failure of the first contactor CA can be determined by the control operation of the drive control unit PDU described above.
  • the drive control unit PDU supplies the voltages of the first battery B1 and the second battery B2 to the motor to drive the motor M in the drive mode after the failure determination mode described above.
  • the first contactor CA and the second contactor CB are controlled such that the first battery B1 and the second battery B2 are connected in series, and the first battery B1 and the second battery B2 are connected in series
  • the motor M is driven by the output voltage.
  • the drive control unit PDU is configured to charge the first battery B1 and the second battery B1 when charging the first battery B1 and the second battery B2 with the charger CH.
  • the first contactor CA and the second contactor CB are controlled such that the first battery B1 and the second battery B2 are charged in parallel by the charger CH such that the first battery B2 and the second battery B2 are connected in parallel.
  • the first positive battery terminal to which the positive electrode of the first battery can be connected and the negative electrode of the first battery can be connected.
  • the first charge terminal to which the high potential side output of the charger is connected and the high potential side voltage of the charger is applied is connected to the low potential side output of the charger, and the low potential side of the charger ,
  • the node is connected to the first charging terminal and the second node to the first positive battery terminal
  • the first contactor is connected such that the first battery and the second battery are connected in parallel or in series. And determining a failure of at least one of the first contactor and the second contactor based on the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal when controlling the second contactor Do.
  • failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series can be performed.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

In a failure determination mode of determining a failure in a first contactor and a second contactor, a driving control unit of this power control device determines a failure in at least either the first contactor or the second contactor, on the basis of capacitor voltage obtained between a first drive voltage terminal and a second drive voltage terminal when the first contactor and the second contactor are controlled so as to connect the first battery and the second battery in parallel or in series.

Description

電力制御装置、および、電力制御装置の制御方法Power control device and control method of power control device
　本発明は、電力制御装置、および、電力制御装置の制御方法に関する。　 The present invention relates to a power control device and a control method of the power control device.
　従来、モータを動力源とした電動二輪車が知られている。この従来の電動二輪車では、１個のバッテリを電源として用いていた。 Conventionally, an electric two-wheeled vehicle using a motor as a power source is known. In this conventional electric motorcycle, one battery is used as a power source.
　ここで、複数（例えば、２個）のモバイルバッテリを、上記電動二輪車に適用する場合、コンタクタを用いて、複数のバッテリを並列又は直列に接続することが想定される。 Here, in the case where a plurality of (for example, two) mobile batteries are applied to the electric motorcycle, it is assumed that a plurality of batteries are connected in parallel or in series using a contactor.
　そして、当該コンタクタが故障した場合、モータ出力に必要な電力を各モバイルバッテリから供給できず、若しくは、充電器から各モバイルバッテリに対して充電できないこととなる。また、当該コンタクタが故障した場合、走行時/充電器システム起動におけるコンタクタ操作時にバッテリ短絡モードになり、バッテリ故障につながる。 And when the said contactor breaks down, electric power required for a motor output can not be supplied from each mobile battery, or it will be unable to charge with respect to each mobile battery from a charger. In addition, if the contactor fails, the battery short circuit mode is established at the time of operation of the contactor during driving / charger system activation, leading to battery failure.
　このように、複数のバッテリを並列又は直列に接続するためのコンタクタの故障診断が求められている（特許文献１、特許文献２参照）。 Thus, there is a need for failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series (see Patent Document 1 and Patent Document 2).
特開２０１１-１６０５８９号公報JP 2011-160589 A 特開２０１４-１４７１３９号公報JP, 2014-147139, A
　そこで、本発明は、複数のバッテリを並列又は直列に接続するためのコンタクタの故障診断を実行することが可能な電力制御装置を提供することを目的とする。 Therefore, an object of the present invention is to provide a power control device capable of executing a failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series.
　本発明の一態様に係る実施形態に従った電力制御装置は、
　第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び前記第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、
　第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び前記第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、
　充電器の高電位側の出力が接続され、前記充電器の高電位側の電圧が印加される第１の充電端子と、
　前記充電器の低電位側の出力が接続され、前記充電器の低電位側の電圧が印加される第２の充電端子と、
　前記第１の正バッテリ端子に接続された第１の駆動電圧端子と、
　前記第２の充電端子に接続された第２の駆動電圧端子と、
　第１ノードが前記第１の充電端子に接続され、第２ノードが前記第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、
　第１ノードが前記第１の充電端子に接続され、第２ノードが前記第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、
　前記第１の負バッテリ端子と前記第２の正バッテリ端子との間に接続された第１のコンタクタと、
　前記第１の負バッテリ端子と前記第２の充電端子との間に接続された第２のコンタクタと、
　前記第１のコンタクタ及び前記第２のコンタクタを制御することで、前記第１の正バッテリ端子及び第１の負バッテリ端子に接続された前記第１のバッテリと、前記第２の正バッテリ端子及び第２の負バッテリ端子に接続された前記第２のバッテリとの電気的な回路接続を制御するとともに、前記第１のバッテリ及び前記第２のバッテリの充放電を制御するものであり、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部と、を備え、
　前記駆動制御部は、
　前記第１のコンタクタ及び前記第２のコンタクタの故障を判定する故障判定モードにおいて、
　前記第１のバッテリと前記第２のバッテリとが並列又は直列に接続されるように前記第１のコンタクタ及び前記第２のコンタクタを制御したときの前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧に基づいて、前記第１のコンタクタ又は前記第２のコンタクタの少なくとも何れかの故障を判定する
　ことを特徴とする。 A power control apparatus according to an embodiment of the present invention is:
A first positive battery terminal to which the positive electrode of the first battery is connectable, and a first negative battery terminal to which the negative electrode of the first battery is connectable;
A second positive battery terminal to which the positive electrode of the second battery is connectable, and a second negative battery terminal to which the negative electrode of the second battery is connectable;
A first charging terminal connected to the high potential side output of the charger, to which a voltage on the high potential side of the charger is applied;
A second charge terminal connected to the low potential side output of the charger and to which a low potential side voltage of the charger is applied;
A first drive voltage terminal connected to the first positive battery terminal;
A second drive voltage terminal connected to the second charging terminal;
A first rectifier element connected to the first charging terminal and connected to the first positive battery terminal to prevent the backflow of current;
A second rectifying element connected to the first charging terminal and connected to the second positive battery terminal for preventing the backflow of current;
A first contactor connected between the first negative battery terminal and the second positive battery terminal;
A second contactor connected between the first negative battery terminal and the second charging terminal;
The first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor, the second positive battery terminal, and It controls electrical circuit connection with the second battery connected to the second negative battery terminal, and controls charging / discharging of the first battery and the second battery, A drive control unit having a capacitor connected between the first drive voltage terminal and the second drive voltage terminal;
The drive control unit
In a failure determination mode for determining failure of the first contactor and the second contactor,
The first drive voltage terminal and the second when the first contactor and the second contactor are controlled so that the first battery and the second battery are connected in parallel or in series. It is characterized in that a failure of at least one of the first contactor and the second contactor is determined based on a capacitor voltage to a drive voltage terminal.
　前記電力制御装置において、
　前記故障判定モードにおいて、
　前記駆動制御部は、
　前記第１のコンタクタをオフに制御し且つ前記第２のコンタクタをオフに制御した後、前記キャパシタに電荷が残っていない状態で、前記第１のバッテリを起動させて第１のバッテリ電圧を出力させ、
　前記第１のバッテリから前記第１のバッテリ電圧を出力させた後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第１の検出電圧が予め設定した第１の閾値電圧以上である場合には、前記第２のコンタクタがショート故障していると判定し、一方、検出した前記第１の検出電圧が前記第１の閾値電圧未満である場合には、前記第２のコンタクタがショート故障していないと判定し、
　前記第２のコンタクタがショート故障していないと判定した場合、前記第２のコンタクタをオンに制御した後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第２の検出電圧が前記第１の閾値電圧未満である場合には、前記第２のコンタクタがオープン故障していると判定し、一方、検出した前記第２の検出電圧が前記第１の閾値電圧以上である場合には、前記第２のコンタクタがオープン故障していないと判定する
　ことを特徴とする。 In the power controller,
In the failure determination mode,
The drive control unit
After controlling the first contactor to be turned off and controlling the second contactor to be turned off, the first battery is started to output a first battery voltage in a state where no electric charge remains in the capacitor Let
After outputting the first battery voltage from the first battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected and detected. If the second contactor is equal to or greater than a preset first threshold voltage, it is determined that the second contactor has a short circuit failure, while the detected first detected voltage is less than the first threshold voltage. In some cases, it is determined that the second contactor is not short circuited,
When it is determined that the second contactor does not have a short circuit failure, the second contactor is controlled to be turned on, and then the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is If the detected and detected second detection voltage is less than the first threshold voltage, it is determined that the second contactor has an open failure, while the detected second detection voltage is When the voltage is equal to or higher than the first threshold voltage, it is determined that the second contactor does not have an open failure.
　前記電力制御装置において、
　前記故障判定モードにおいて、
　前記駆動制御部は、
　前記第２のコンタクタがオープン故障していないと判定した場合、前記第２のコンタクタをオフに制御した後、前記第２のバッテリを起動させて第２のバッテリ電圧を出力させ、
　前記第２のバッテリから前記第２のバッテリ電圧を出力させた後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第３の検出電圧が予め設定した前記第１の閾値電圧よりも高い第２の閾値電圧以上である場合には、前記第１のコンタクタがショート故障していると判定し、一方、検出した前記第３の検出電圧が前記第２の閾値電圧未満である場合には、前記第１のコンタクタがショート故障していないと判定し、
　前記第１のコンタクタがショート故障していないと判定した場合、前記第１のコンタクタをオンに制御した後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第４の検出電圧が前記第２の閾値電圧未満である場合には、前記第１のコンタクタがオープン故障していると判定し、一方、検出した前記第４の検出電圧が前記第２の閾値電圧以上である場合には、前記第１のコンタクタがオープン故障していないと判定する
　ことを特徴とする。 In the power controller,
In the failure determination mode,
The drive control unit
If it is determined that the second contactor does not have an open failure, the second contactor is controlled to be turned off, and then the second battery is activated to output a second battery voltage.
After outputting the second battery voltage from the second battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected, and a third detection voltage detected If it is equal to or higher than a second threshold voltage higher than the first threshold voltage set in advance, it is determined that the first contactor has a short circuit failure, while the detected third detected voltage If it is less than the second threshold voltage, it is determined that the first contactor is not short circuited,
When it is determined that the first contactor does not have a short circuit failure, the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is controlled after the first contactor is controlled to be turned on. If the detected and detected fourth detection voltage is less than the second threshold voltage, it is determined that the first contactor has an open failure, while the detected fourth detection voltage is When the voltage is equal to or higher than the second threshold voltage, it is determined that the first contactor does not have an open failure.
　前記電力制御装置において、
　前記駆動制御部は、
　前記第１の駆動電圧端子と前記第２の駆動電圧端子との間の電圧からモータ駆動電圧を生成して、前記モータ駆動電圧によりモータを駆動する　、
　ことを特徴とする。 In the power controller,
The drive control unit
A motor drive voltage is generated from a voltage between the first drive voltage terminal and the second drive voltage terminal, and the motor is driven by the motor drive voltage.
It is characterized by
　前記電力制御装置において、　
　前記駆動制御部は、
　前記第１の駆動電圧端子と前記第２の駆動電圧端子との間の電圧が供給され、前記モータにモータ駆動電圧を出力して前記モータを駆動するブリッジ回路をさらに備え、
　前記駆動制御部は、
　前記故障判定モードにおいて前記第１のバッテリを起動させる前に、前記ブリッジ回路により、前記キャパシタの電圧を放電する
　ことを特徴とする。 In the power controller,
The drive control unit
It further comprises a bridge circuit which is supplied with a voltage between the first drive voltage terminal and the second drive voltage terminal and outputs a motor drive voltage to the motor to drive the motor.
The drive control unit
The bridge circuit discharges the voltage of the capacitor before the first battery is activated in the failure determination mode.
　前記電力制御装置において、
　基準バッテリの正極が接続され、基準電圧が供給される基準バッテリ端子と、
　前記充電器が接続可能になっている基準充電端子と、
　一端が前記基準バッテリ端子に接続され、他端が前記基準充電端子、第１のバッテリ用電源端子及び駆動制御部用電源端子に接続されたスイッチ回路と、を備える
　ことを特徴とする。 In the power controller,
A reference battery terminal connected to a positive electrode of a reference battery and supplied with a reference voltage;
A reference charging terminal to which the charger can be connected;
And a switch circuit having one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power supply terminal, and the drive control unit power supply terminal.
　前記電力制御装置において、
　前記第１のバッテリは、
　前記第１の正バッテリ端子と前記第１の負バッテリ端子との間の電圧を充電し又は前記第１の正バッテリ端子と前記第１の負バッテリ端子との間に充電電圧を放電する第１のセルと、
　前記第１のバッテリ用電源端子に供給される前記基準電圧で起動し、前記第１のセルの状態を監視し、前記第１のセルの状態に関する情報を出力する第１のマネジメント部と、を備え、
　前記第２のバッテリは、
　前記第２の正バッテリ端子と前記第２の負バッテリ端子との間の電圧を充電し又は前記第２の正バッテリ端子と前記第２の負バッテリ端子との間に充電電圧を放電する第２のセルと、
　前記駆動制御部から供給される第１の起動電圧又は前記充電器から供給される第２の起動電圧で起動し、前記第２のセルの状態を監視し、前記第２のセルの状態に関する情報を出力する第２のマネジメント部と、を備える
　ことを特徴とする。 In the power controller,
The first battery is
First charging a voltage between the first positive battery terminal and the first negative battery terminal or discharging a charging voltage between the first positive battery terminal and the first negative battery terminal Cells, and
A first management unit activated by the reference voltage supplied to the first battery power supply terminal, monitoring a state of the first cell, and outputting information on the state of the first cell; Equipped
The second battery is
Second charging the voltage between the second positive battery terminal and the second negative battery terminal or discharging the charging voltage between the second positive battery terminal and the second negative battery terminal Cells, and
It starts with the 1st starting voltage supplied from the said drive control part, or the 2nd starting voltage supplied from the said charger, monitors the state of the said 2nd cell, and the information regarding the state of the said 2nd cell And a second management unit that outputs the
　前記電力制御装置において、
　前記駆動制御部は、
　前記第１のマネジメント部から前記第１のバッテリが正常に接続されている旨を通知され且つ第２のマネジメント部から前記第２のバッテリが正常に接続されている旨を通知された後に、前記故障判定モードを実行する
　ことを特徴とする。 In the power controller,
The drive control unit
After being notified by the first management unit that the first battery is normally connected and notified by the second management unit that the second battery is normally connected, It is characterized in that a failure determination mode is executed.
　前記電力制御装置において、
　前記駆動制御部は
　前記故障判定モードの後の駆動モードにおいて、前記第１のバッテリ及び前記第２のバッテリの電圧をモータに供給して、前記モータを駆動する場合には、前記第１のバッテリと前記第２のバッテリとが直列に接続されるように、前記第１のコンタクタ及び前記第２のコンタクタを制御して、前記第１のバッテリと前記第２のバッテリとを直列した電圧により、前記モータを駆動する
　ことを特徴とする。 In the power controller,
The drive control unit supplies a voltage of the first battery and the second battery to a motor in a drive mode after the failure determination mode, and drives the motor. Control the first contactor and the second contactor such that the first battery and the second battery are connected in series so that the second battery and the second battery are connected in series, It is characterized in that the motor is driven.
　前記電力制御装置において、
　前記駆動制御部は
　前記故障判定モードの後の充電モードにおいて、前記第１のバッテリ及び前記第２のバッテリを前記充電器により充電する場合には、前記第１のバッテリと前記第２のバッテリとが並列に接続されるように、前記第１のコンタクタ及び前記第２のコンタクタを制御して、前記充電器により前記第１のバッテリ及び前記第２のバッテリを並列に充電する
　ことを特徴とする。 In the power controller,
When charging the first battery and the second battery by the charger in the charge mode after the failure determination mode, the drive control unit is configured to transmit the first battery and the second battery. And controlling the first contactor and the second contactor such that the first battery and the second battery are charged in parallel by the charger. .
　前記電力制御装置において、
　前記駆動制御部は、
　前記第１のバッテリ及び前記第２のバッテリを放電する場合には、前記第１のコンタクタをオンし且つ前記第２のコンタクタをオフすることで、前記第１のバッテリと前記第２のバッテリとを直列に接続し、
　一方、前記第１のバッテリ及び前記第２のバッテリを充電する場合には、第１のコンタクタをオフし且つ第２のコンタクタをオンすることで、前記第１のバッテリと前記第２のバッテリとを並列に接続する
　ことを特徴とする。 In the power controller,
The drive control unit
When discharging the first battery and the second battery, the first battery and the second battery are turned on by turning on the first contactor and turning off the second contactor. Connected in series,
On the other hand, when charging the first battery and the second battery, the first battery and the second battery are turned off by turning off the first contactor and turning on the second contactor. Are connected in parallel.
　前記電力制御装置において、
　前記第２のバッテリの構成は、前記第１のバッテリの構成と同じであることを特徴とする。 In the power controller,
The configuration of the second battery is characterized by being the same as the configuration of the first battery.
　前記電力制御装置において、
　前記電力制御装置は電動二輪車に積載され、前記モータは前記電動二輪車の車輪に接続され、前記駆動制御部は、前記モータの駆動を制御することにより、前記車輪の回転を制御する
　ことを特徴とする。 In the power controller,
The power control device is mounted on an electric two-wheeled vehicle, the motor is connected to a wheel of the electric two-wheeled vehicle, and the drive control unit controls the rotation of the wheel by controlling the driving of the motor. Do.
　前記電力制御装置において、
　前記基準バッテリは、鉛バッテリであり、
　前記第１及び第２のバッテリは、リチウムバッテリであることを特徴とする。 In the power controller,
The reference battery is a lead battery,
The first and second batteries may be lithium batteries.
　本発明の一態様に係る実施形態に従った電力制御装置の制御方法は、
　第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び前記第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び前記第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、充電器の高電位側の出力が接続され、前記充電器の高電位側の電圧が印加される第１の充電端子と、前記充電器の低電位側の出力が接続され、前記充電器の低電位側の電圧が印加される第２の充電端子と、前記第１の正バッテリ端子に接続された第１の駆動電圧端子と、前記第２の充電端子に接続された第２の駆動電圧端子と、第１ノードが前記第１の充電端子に接続され、第２ノードが前記第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、第１ノードが前記第１の充電端子に接続され、第２ノードが前記第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、前記第１の負バッテリ端子と前記第２の正バッテリ端子との間に接続された第１のコンタクタと、前記第１の負バッテリ端子と前記第２の充電端子との間に接続された第２のコンタクタと、前記第１のコンタクタ及び前記第２のコンタクタを制御することで、前記第１の正バッテリ端子及び第１の負バッテリ端子に接続された前記第１のバッテリと、前記第２の正バッテリ端子及び第２の負バッテリ端子に接続された前記第２のバッテリとの電気的な回路接続を制御するとともに、前記第１のバッテリ及び前記第２のバッテリの充放電を制御するものであり、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部とを備えた電力制御装置の制御方法であって、
　前記第１のコンタクタ及び前記第２のコンタクタの故障を判定する故障判定モードにおいて、
　前記駆動制御部により、前記第１のバッテリと前記第２のバッテリとが並列又は直列に接続されるように前記第１のコンタクタ及び前記第２のコンタクタを制御したときの前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧に基づいて、前記第１のコンタクタ又は前記第２のコンタクタの少なくとも何れかの故障を判定する
　ことを特徴とする。 According to an embodiment of the present invention, there is provided a control method of a power control apparatus,
The first positive battery terminal to which the positive electrode of the first battery can be connected, the first negative battery terminal to which the negative electrode of the first battery can be connected, and the positive electrode of the second battery A second positive battery terminal that can be connected, and a second negative battery terminal that can be connected to the negative electrode of the second battery, and an output on the high potential side of a charger are connected, the charging A first charging terminal to which the high potential side voltage of the charger is applied, and a second charging terminal to which the low potential side output of the charger is connected and to which the low potential side voltage of the charger is applied A first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and a first node connected to the first charge terminal The second node is connected to the first positive battery terminal, and A first rectifying element for preventing current flow, and a second rectifying element for connecting a first node to the first charging terminal and a second node to the second positive battery terminal to prevent reverse current flow Element, a first contactor connected between the first negative battery terminal and the second positive battery terminal, and a connection between the first negative battery terminal and the second charging terminal A second contactor, and the first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor; Controlling the electrical circuit connection with the second battery connected to the second positive battery terminal and the second negative battery terminal, and charging / discharging the first battery and the second battery Control, and A control method of a power control apparatus and a drive control section having a capacitor connected between the first driving voltage terminal and the second driving voltage terminal,
In a failure determination mode for determining failure of the first contactor and the second contactor,
The first drive voltage when the first contactor and the second contactor are controlled by the drive control unit to connect the first battery and the second battery in parallel or in series. It is characterized in that a failure of at least one of the first contactor and the second contactor is determined based on a capacitor voltage between a terminal and the second drive voltage terminal.
　本発明の一態様に係る電力制御装置は、第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、充電器の高電位側の出力が接続され、充電器の高電位側の電圧が印加される第１の充電端子と、充電器の低電位側の出力が接続され、充電器の低電位側の電圧が印加される第２の充電端子と、第１の正バッテリ端子に接続された第１の駆動電圧端子と、第２の充電端子に接続された第２の駆動電圧端子と、第１ノードが第１の充電端子に接続され、第２ノードが第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、第１ノードが第１の充電端子に接続され、第２ノードが第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、第１の負バッテリ端子と第２の正バッテリ端子との間に接続された第１のコンタクタと、第１の負バッテリ端子と第２の充電端子との間に接続された第２のコンタクタと、第１のコンタクタ及び第２のコンタクタを制御することで、第１の正バッテリ端子及び第１の負バッテリ端子に接続された第１のバッテリと、第２の正バッテリ端子及び第２の負バッテリ端子に接続された第２のバッテリとの電気的な回路接続を制御するとともに、第１のバッテリ及び第２のバッテリの充放電を制御するものであり、第１の駆動電圧端子と第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部と、を備える。 A power control apparatus according to an aspect of the present invention is a first positive battery terminal to which a positive electrode of a first battery is connectable, and a first negative terminal to which a negative electrode of the first battery is connectable. The second positive battery terminal to which the battery terminal and the positive terminal of the second battery are connectable, and the second negative battery terminal to which the negative terminal of the second battery is connectable; The output of the potential side is connected, the first charging terminal to which the high potential side voltage of the charger is applied, and the output of the low potential side of the charger are connected, the voltage of the low potential side of the charger is applied Second charge terminal, a first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and a first node Connected to the charge terminal, the second node is connected to the first positive battery terminal, and A first rectifying element for preventing reverse flow, a second rectifying element for connecting the first node to the first charging terminal and the second node to the second positive battery terminal for preventing the reverse flow of current; A first contactor connected between the first negative battery terminal and the second positive battery terminal, and a second contactor connected between the first negative battery terminal and the second charging terminal And a first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor, a second positive battery terminal, and a second battery terminal. It controls the electrical circuit connection with the second battery connected to the negative battery terminal, and controls the charging and discharging of the first battery and the second battery. Key connected between the two drive voltage terminals And a drive control section having a Pashita.
　そして、駆動制御部は、第１のコンタクタ及び第２のコンタクタの故障を判定する故障判定モードにおいて、第１のバッテリと第２のバッテリとが並列又は直列に接続されるように第１のコンタクタ及び第２のコンタクタを制御したときの第１の駆動電圧端子と第２の駆動電圧端子との間のキャパシタ電圧に基づいて、第１のコンタクタ又は第２のコンタクタの少なくとも何れかの故障を判定する。 Then, in the failure determination mode in which the drive control unit determines the failure of the first contactor and the second contactor, the first contactor is connected such that the first battery and the second battery are connected in parallel or in series. And determining a failure of at least one of the first contactor and the second contactor based on the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal when controlling the second contactor Do.
　このように、本発明によれば、複数のバッテリを並列又は直列に接続するためのコンタクタの故障診断を適切に実行することができる。 Thus, according to the present invention, it is possible to appropriately execute a failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series.
図１は、実施形態に係る電力制御装置１００の構成の一例を示す図である。FIG. 1 is a diagram showing an example of the configuration of a power control apparatus 100 according to the embodiment. 図２は、図１に示す電力制御装置１００の第２のコンタクタＣＢの故障を判定する動作の一例を説明するための図である。FIG. 2 is a diagram for explaining an example of an operation of determining a failure of the second contactor CB of the power control apparatus 100 shown in FIG. 図３は、図１に示す電力制御装置１００の第１のコンタクタＣＡの故障を判定する動作の一例を説明するための図である。FIG. 3 is a diagram for explaining an example of an operation of determining a failure of the first contactor CA of the power control apparatus 100 shown in FIG. 図４は、図１に示す電力制御装置１００の故障判定モードにおける第１及び第２のコンタクタＣＡ、ＣＢ、第１及び第２のバッテリＢ１、Ｂ２の動作の一例を示す図である。FIG. 4 is a diagram showing an example of the operation of the first and second contactors CA, CB and the first and second batteries B1, B2 in the failure determination mode of the power control apparatus 100 shown in FIG.
以下、本発明に係る実施形態について図面に基づいて説明する。 Hereinafter, embodiments according to the present invention will be described based on the drawings.
第１の実施形態First embodiment
　図１は、実施形態に係る電力制御装置１００の構成の一例を示す図である。なお、図１においては、モバイルバッテリが最小単位の２個（第１、第２のバッテリＢ１、Ｂ２）の場合を記載しているが、３個以上のモバイルバッテリが接続されるようにした場合も、同様に説明される。 FIG. 1 is a diagram showing an example of the configuration of a power control apparatus 100 according to the embodiment. In addition, in FIG. 1, although the case where the mobile battery is two pieces (1st, 2nd battery B1, B2) of the minimum unit is described, when three or more mobile batteries are connected Is also described similarly.
　本実施形態に係る電力制御装置１００は、例えば、図１に示すように、基準バッテリ端子ＴＫと、基準充電端子ＴＣＳと、第１の正バッテリ端子Ｔ１Ｐと、第１の負バッテリ端子Ｔ１Ｎと、第２の正バッテリ端子Ｔ２Ｐと、第２の負バッテリ端子Ｔ２Ｎと、第１のバッテリ用電源端子Ｔ１Ｂと、第２のバッテリ用電源端子Ｔ２Ｂと、第１の駆動電圧端子ＴＤＰと、第２の駆動電圧端子ＴＤＮと、通信線ＣＡＮと、駆動制御部用電源端子ＴＧと、第１の起動電圧端子ＴＰＳ２と、第２の起動電圧端子ＴＣＯＵＴと、第１の充電端子ＴＣＰと、第２の充電端子ＴＣＮと、スイッチ回路ＳＷと、メインスイッチ制御部Ｘと、駆動制御部ＰＤＵと、ダウンレギュレータＤＲと、第１の整流素子ＤＡと、第２の整流素子ＤＢと、第１のコンタクタＣＡと、第２のコンタクタＣＢと、を備える。 For example, as shown in FIG. 1, the power control apparatus 100 according to the present embodiment includes a reference battery terminal TK, a reference charging terminal TCS, a first positive battery terminal T1P, and a first negative battery terminal T1N. Second positive battery terminal T2P, second negative battery terminal T2N, first battery power supply terminal T1B, second battery power supply terminal T2B, first drive voltage terminal TDP, second Drive voltage terminal TDN, communication line CAN, drive control unit power supply terminal TG, first start voltage terminal TPS2, second start voltage terminal TCOUT, first charge terminal TCP, second charge A terminal TCN, a switch circuit SW, a main switch control unit X, a drive control unit PDU, a down regulator DR, a first rectifying element DA, a second rectifying element DB, and a first contactor CA Comprises a second contactor CB, the.
　この電力制御装置１００は、例えば、電動二輪車（車両）に積載されるようになっている。そして、モータＭは、当該電動二輪車の車輪に接続されている。 The power control device 100 is, for example, loaded on an electric two-wheeled vehicle (vehicle). The motor M is connected to the wheels of the electric motorcycle.
　この電力制御装置１００は、基準バッテリ（鉛バッテリ）Ｋの電圧により起動するようになっている。そして、電力制御装置１００は、第１及び第２のバッテリ（Ｌｉバッテリ）Ｂ１、Ｂ２の電圧からモータ駆動電圧を生成して、このモータ駆動電圧によりモータＭを駆動するようになっている。そして、電力制御装置１００は、モータＭの駆動を制御することにより、当該車輪の回転を制御するようになっている。 The power control apparatus 100 is started by the voltage of a reference battery (lead battery) K. Then, the power control apparatus 100 generates a motor drive voltage from the voltages of the first and second batteries (Li batteries) B1 and B2, and drives the motor M with this motor drive voltage. Then, the power control device 100 controls the rotation of the wheel by controlling the drive of the motor M.
　ここで、基準バッテリ端子ＴＫは、基準バッテリＫの正極が接続され、基準電圧が供給される。なお、基準バッテリＫは、例えば、鉛バッテリである。 Here, the reference battery terminal TK is connected to the positive electrode of the reference battery K, and is supplied with a reference voltage. The reference battery K is, for example, a lead battery.
　また、第１の充電端子ＴＣＰは、図１の例では、充電器ＣＨの高電位側の出力が接続され、充電器ＣＨの高電位側の電圧が印加されるようになっている。 Further, in the example of FIG. 1, the first charge terminal TCP is connected to the output on the high potential side of the charger CH, and the voltage on the high potential side of the charger CH is applied.
　また、第２の充電端子ＴＣＮは、図１の例では、充電器ＣＨの低電位側の出力が接続され、充電器ＣＨの低電位側の電圧が印加されるようになっている。 Further, in the example of FIG. 1, the second charge terminal TCN is connected to the low potential side output of the charger CH, and a voltage on the low potential side of the charger CH is applied.
　また、基準充電端子ＴＣＳは、充電器ＣＨが接続可能になっており、第１のバッテリ用電源端子Ｔ１Ｂ及び駆動制御部用電源端子ＴＰＳ１に電気的に接続されている。 The reference charging terminal TCS is connectable to the charger CH, and is electrically connected to the first battery power supply terminal T1B and the drive control unit power supply terminal TPS1.
　なお、充電器ＣＨは、少なくとも第１及び第２のバッテリＢ１、Ｂ２の充電時に接続されていればよく、既述の電動二輪車の走行時等には、当該電動二輪車に積載された電力制御装置１００（各端子ＴＣＮ、ＴＣＰ、ＴＣＯＵＴ、ＴＣＳ）から外されていてもよい。 The charger CH may be connected as long as at least the first and second batteries B1 and B2 are charged, and the electric power control device mounted on the electric motorcycle when the electric motorcycle is traveling as described above. It may be disconnected from 100 (each terminal TCN, TCP, TCOUT, TCS).
　また、第１の駆動電圧端子ＴＤＰは、第１の正バッテリ端子Ｔ１Ｐに電気的に接続されている。 Also, the first drive voltage terminal TDP is electrically connected to the first positive battery terminal T1P.
　また、第２の駆動電圧端子ＴＤＮは、第２の充電端子ＴＣＮに電気的に接続されている。 The second drive voltage terminal TDN is electrically connected to the second charging terminal TCN.
　また、駆動制御部用電源端子ＴＧは、基準充電端子ＴＣＳに電気的に接続されている。 The drive control unit power supply terminal TG is electrically connected to the reference charging terminal TCS.
　また、第１の起動電圧端子ＴＰＳ２は、駆動制御部ＰＤＵに接続されており、第２のバッテリ用電源端子Ｔ２Ｂに電気的に接続されている。 The first start-up voltage terminal TPS2 is connected to the drive control unit PDU and is electrically connected to the second battery power supply terminal T2B.
　また、第２の起動電圧端子ＴＣＯＵＴは、充電器ＣＨが接続可能になっており、第２のバッテリ用電源端子Ｔ２Ｂに電気的に接続されている。 Further, the charger CH can be connected to the second start voltage terminal TCOUT, and the second start voltage terminal TCOUT is electrically connected to the second battery power supply terminal T2B.
　また、第１のバッテリ用電源端子Ｔ１Ｂは、第１のバッテリＢ１が接続可能になっており、スイッチ回路ＳＷの他端及び基準充電端子ＴＣＳに接続されている。 Further, the first battery B1 can be connected to the first battery power supply terminal T1B, and the first battery power supply terminal T1B is connected to the other end of the switch circuit SW and the reference charging terminal TCS.
　また、第２のバッテリ用電源端子Ｔ２Ｂは、第２のバッテリＢ２が接続可能になっており、第１及び第２の起動電圧端子ＴＰＳ２、ＴＣＯＵＴに接続されている。 The second battery power supply terminal T2B is connectable to the second battery B2, and is connected to the first and second start voltage terminals TPS2 and TCOUT.
　また、モバイルバッテリである第１及び第２のバッテリＢ１、Ｂ２は、例えば、リチウムバッテリである。すなわち、第１及び第２のバッテリＢ１、Ｂ２が出力するバッテリ電圧（４８Ｖ）は、基準バッテリＫが出力する基準電圧であるバッテリ電圧（１２Ｖ）よりも高くなるように設定されている。 In addition, the first and second batteries B1 and B2 which are mobile batteries are, for example, lithium batteries. That is, the battery voltage (48 V) output by the first and second batteries B1 and B2 is set to be higher than the battery voltage (12 V) which is the reference voltage output by the reference battery K.
　また、第１の正バッテリ端子Ｔ１Ｐは、既述の第１のバッテリＢ１の正極が接続可能になっている。そして、第１の負バッテリ端子Ｔ１Ｎは、この第１のバッテリＢ１の負極が接続可能になっている。 The positive terminal of the first battery B1 described above can be connected to the first positive battery terminal T1P. The first negative battery terminal T1N is connectable to the negative electrode of the first battery B1.
　ここで、第１のバッテリＢ１は、例えば、図１に示すように、第１のセル（直列に接続された複数のリチウムイオン電池）Ｓ１と、第１のマネジメント部ＢＭＵ１と、を備える。 Here, for example, as shown in FIG. 1, the first battery B1 includes a first cell (a plurality of lithium ion batteries connected in series) S1 and a first management unit BMU1.
　そして、第１のセルＳ１は、第１の正バッテリ端子Ｔ１Ｐと第１の負バッテリ端子Ｔ１Ｎとの間の電圧を充電し、又は、第１の正バッテリ端子Ｔ１Ｐと第１の負バッテリ端子Ｔ１Ｎとの間に充電電圧を放電するようになっている。 Then, the first cell S1 charges the voltage between the first positive battery terminal T1P and the first negative battery terminal T1N, or the first positive battery terminal T1P and the first negative battery terminal T1N. And discharge the charge voltage between them.
　そして、第１のマネジメント部ＢＭＵ１は、第１のバッテリ用電源端子Ｔ１Ｂに供給される基準電圧で起動し、第１のセルＳ１（すなわち、第１のバッテリＢ１）の状態（第１のセルＳ１のセル電圧、第１のセルＳ１のＳＯＣ、第１のセルＳ１の温度、第１のセルＳ１の電流等）を監視し、この第１のセルＳ１（すなわち、第１のバッテリＢ１）の状態に関する情報や、既述の識別情報等を含むデータを、通信線ＣＡＮを介して、断続的に出力するようになっている。 Then, the first management unit BMU1 is activated by the reference voltage supplied to the first battery power supply terminal T1B, and the state (first cell S1) of the first cell S1 (that is, the first battery B1). Cell voltage, the SOC of the first cell S1, the temperature of the first cell S1, the current of the first cell S1, etc.), and the state of the first cell S1 (ie, the first battery B1) Data including the above-mentioned identification information etc. are intermittently output via the communication line CAN.
　なお、この第１のバッテリＢ１の接続前の初期状態において、第１のバッテリＢ１の識別情報は、初期識別情報に設定されている。 In the initial state before the connection of the first battery B1, the identification information of the first battery B1 is set as the initial identification information.
　また、第１のバッテリＢ１は、電力制御装置１００（例えば、各端子Ｔ１Ｐ、Ｔ１Ｎ、及びＴ１Ｂ）から外されると、その識別情報が該初期識別情報にリセットされるようになっている。 When the first battery B1 is removed from the power control apparatus 100 (for example, each of the terminals T1P, T1N, and T1B), its identification information is reset to the initial identification information.
　そして、この第１のマネジメント部ＢＭＵ１は、第１のセルＳ１の状態（故障等）に応じて、強制的に第１のセルＳ１の充放電を停止するための第１の管理用コンタクタＴ１を備える。 Then, the first management unit BMU1 forcibly contacts the first management contactor T1 for stopping charging / discharging of the first cell S1 according to the state (fault etc.) of the first cell S1. Prepare.
　また、第２の正バッテリ端子Ｔ２Ｐは、既述の第２のバッテリＢ２の正極が接続可能になっている。そして、第２の負バッテリ端子Ｔ２Ｎは、この第２のバッテリＢ２の負極が接続可能になっている。 Further, the positive terminal of the second battery B2 described above can be connected to the second positive battery terminal T2P. The second negative battery terminal T2N can be connected to the negative electrode of the second battery B2.
　ここで、第２のバッテリＢ２は、第２のセル（直列に接続された複数のリチウムイオン電池）Ｓ２と、第２のマネジメント部ＢＭＵ２と、を備える。 Here, the second battery B2 includes a second cell (a plurality of lithium ion batteries connected in series) S2 and a second management unit BMU2.
　そして、第２のセルＳ２は、第２の正バッテリ端子Ｔ２Ｐと第２の負バッテリ端子Ｔ２Ｎとの間の電圧を充電し、又は、第２の正バッテリ端子Ｔ２Ｐと第２の負バッテリ端子Ｔ２Ｎとの間に充電電圧を放電するようになっている。 Then, the second cell S2 charges the voltage between the second positive battery terminal T2P and the second negative battery terminal T2N, or the second positive battery terminal T2P and the second negative battery terminal T2N. And discharge the charge voltage between them.
　そして、第２のマネジメント部ＢＭＵ２は、駆動制御部ＰＤＵから供給される第１の起動電圧又は充電器ＣＨから供給される第２の起動電圧（すなわち、第２のバッテリ用電源端子Ｔ２Ｂに供給される第１又は第２の起動電圧）で起動し、第２のセルＳ２（すなわち、第２のバッテリＢ２）の状態（第２のセルＳ２のセル電圧、第２のセルＳ２のＳＯＣ、第２のセルＳ２の温度、第２のセルＳ２の電流等）を監視し、第２のセルＳ２（すなわち、第２のバッテリＢ２）の状態に関する情報を出力するようになっている。 Then, the second management unit BMU2 is supplied with the first start voltage supplied from the drive control unit PDU or the second start voltage supplied from the charger CH (that is, supplied to the second battery power supply terminal T2B). And the second cell S2 (ie, the second battery B2) (the cell voltage of the second cell S2, the SOC of the second cell S2, and the second cell S2). The temperature of the cell S2, the current of the second cell S2, etc.) is monitored, and information on the state of the second cell S2 (ie, the second battery B2) is output.
　なお、この第２のバッテリＢ２の接続前の初期状態において、第２のバッテリＢ２の識別情報は、第１のバッテリＢ１の識別情報と同じ該初期識別情報に設定されている。 In the initial state before the connection of the second battery B2, the identification information of the second battery B2 is set to the same initial identification information as the identification information of the first battery B1.
　そして、この第２のマネジメント部ＢＭＵ２は、第２のセルＳ２の状態（故障等）に応じて、強制的に第２のセルＳ２の充放電を停止するための第２の管理用コンタクタＴ２を備える。 Then, the second management unit BMU2 forcibly contacts the second management contactor T2 for stopping the charge / discharge of the second cell S2 according to the state (fault etc.) of the second cell S2. Prepare.
　また、第２のバッテリＢ２は、電力制御装置１００（例えば、各端子Ｔ２Ｐ、Ｔ２Ｎ、及びＴ２Ｂ）から外されると、その識別情報が該初期識別情報にリセットされるようになっている。 When the second battery B2 is removed from the power control apparatus 100 (for example, each of the terminals T2P, T2N, and T2B), the identification information thereof is reset to the initial identification information.
　なお、この第２のバッテリＢ２の構成は、既述の第１のバッテリＢ１の構成と同じである。 The configuration of the second battery B2 is the same as the configuration of the first battery B1 described above.
　また、スイッチ回路ＳＷは、一端が基準バッテリ端子ＴＫに接続され、他端が基準充電端子ＴＣＳ、第１のバッテリ用電源端子Ｔ１Ｂ及び駆動制御部用電源端子ＴＰＳ１に電気的に接続されている。 The switch circuit SW has one end connected to the reference battery terminal TK and the other end electrically connected to the reference charging terminal TCS, the first battery power supply terminal T1B, and the drive control unit power supply terminal TPS1.
　このスイッチ回路ＳＷは、例えば、オンすることにより基準バッテリＫの基準電圧を駆動制御部ＰＤＵ及び第１のバッテリＢ１に供給するようになっている。 The switch circuit SW is configured to supply the reference voltage of the reference battery K to the drive control unit PDU and the first battery B1, for example, by being turned on.
　一方、このスイッチ回路ＳＷは、オフすることにより基準バッテリＫの基準電圧の駆動制御部ＰＤＵ及び第１のバッテリＢ１への供給を遮断するようになっている。 On the other hand, the switch circuit SW is configured to cut off the supply of the reference voltage of the reference battery K to the drive control unit PDU and the first battery B1 by being turned off.
　また、メインスイッチ制御部Ｘは、基準バッテリＫの正極から電力が供給され、ユーザの操作（行為）等に応じてスイッチ回路ＳＷを制御するようになっている。 Further, the main switch control unit X is supplied with power from the positive electrode of the reference battery K, and controls the switch circuit SW in accordance with the operation (action) of the user.
　また、通信線ＣＡＮは、第１の正バッテリ端子Ｔ１Ｐ及び第１の負バッテリ端子Ｔ１Ｎに接続された第１のバッテリＢ１と駆動制御部ＰＤＵ（又は充電器ＣＨ）とが通信するとともに、第２の正バッテリ端子Ｔ２Ｐ及び第２の負バッテリ端子Ｔ２Ｎに接続された第２のバッテリＢ２と、駆動制御部ＰＤＵ（又は充電器ＣＨ）とが通信するためのものである。 In addition, the communication line CAN allows the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N to communicate with the drive control unit PDU (or the charger CH), and The second battery B2 connected to the positive battery terminal T2P and the second negative battery terminal T2N communicate with the drive control unit PDU (or the charger CH).
　この通信線ＣＡＮは、第１及び第２のバッテリＢ１、Ｂ２がデータを駆動制御部ＰＤＵに送信するための第１の通信線ＣＡＮ１と、駆動制御部ＰＤＵ又は充電器ＣＨの指令を第１及び第２のバッテリＢ１、Ｂ２に送信するための第２の通信線ＣＡＮ２とを備える。 The communication line CAN includes a first communication line CAN1 for the first and second batteries B1 and B2 to transmit data to the drive control unit PDU, a command from the drive control unit PDU or the charger CH, and the like. A second communication line CAN2 for transmitting to the second batteries B1 and B2 is provided.
　また、ダウンレギュレータＤＲは、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮと間の電圧を降圧して出力するようになっている。 Further, the down regulator DR is configured to step down and output a voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
　このダウンレギュレータＤＲは、例えば、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮと間の電圧を降圧して、負荷Ｌｏａｄが接続される負荷端子ＴＲに出力するＤＣ－ＤＣコンバータである。なお、基準バッテリＫは、このダウンレギュレータＤＲが出力する電圧により充電されるようになっている。 The down regulator DR is, for example, a DC-DC converter that steps down a voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN and outputs the voltage to the load terminal TR to which the load Load is connected. . The reference battery K is charged by the voltage output from the down regulator DR.
　なお、当該負荷Ｌｏａｄは、例えば、既述の電動二輪車のライト、ウインカー、又はインジケータ、その他の電動二輪車の走行等に必要な電子部品の何れかを含む。 The load Load includes, for example, any of the lights, blinkers, and indicators of the electric motorcycle described above, and other electronic components necessary for traveling the electric motorcycle and the like.
　また、第１の整流素子ＤＡは、第１ノード（アノード）が第１の充電端子ＴＣＰに接続され、第２ノード（カソード）が第１の正バッテリ端子Ｔ１Ｐに接続され、電流の逆流を防止する第１のダイオードである。 Further, in the first rectifier element DA, the first node (anode) is connected to the first charge terminal TCP, and the second node (cathode) is connected to the first positive battery terminal T1P to prevent reverse current flow First diode.
　また、第２の整流素子ＤＢは、第１ノード（アノード）が第１の充電端子ＴＣＰに接続され、第２ノード（カソード）が第２の正バッテリ端子Ｔ２Ｐに接続され、電流の逆流を防止する第２のダイオードである。 The second rectifier element DB has a first node (anode) connected to the first charging terminal TCP, and a second node (cathode) connected to the second positive battery terminal T2P to prevent reverse current flow. Second diode.
　また、第１のコンタクタＣＡは、第１の負バッテリ端子Ｔ１Ｎと第２の正バッテリ端子Ｔ２Ｐとの間に接続されている。この第１のコンタクタＣＡは、駆動制御部ＰＤＵにより、オン／オフが制御されるようになっている。 The first contactor CA is connected between the first negative battery terminal T1N and the second positive battery terminal T2P. The first contactor CA is controlled to be turned on / off by the drive control unit PDU.
　また、第２のコンタクタＣＢは、第１の負バッテリ端子Ｔ１Ｎと第２の充電端子ＴＣＮとの間に接続されている。この第２のコンタクタＣＢは、駆動制御部ＰＤＵによりオン／オフが制御されるようになっている。 The second contactor CB is connected between the first negative battery terminal T1N and the second charging terminal TCN. The second contactor CB is controlled to be turned on / off by the drive control unit PDU.
　また、駆動制御部ＰＤＵは、例えば、図１に示すように、第１のバッテリＢ１及び第２のバッテリＢ１、Ｂ２の電圧からモータ駆動電圧を生成して、このモータ駆動電圧によりモータを駆動するようになっている。そして、駆動制御部ＰＤＵは、モータＭの駆動を制御することにより、当該車輪の回転を制御するようになっている。 Further, as shown in FIG. 1, for example, the drive control unit PDU generates a motor drive voltage from the voltages of the first battery B1 and the second batteries B1 and B2, and drives the motor by this motor drive voltage. It is supposed to be. The drive control unit PDU controls the rotation of the wheel by controlling the drive of the motor M.
　この駆動制御部ＰＤＵは、例えば、図１に示すように、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間に接続されたキャパシタＺと、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間の電圧（キャパシタＺの電圧）が供給され、モータＭにモータ駆動電圧を出力してモータＭを駆動するブリッジ回路Ｙと、を備える。 For example, as shown in FIG. 1, the drive control unit PDU includes a capacitor Z connected between a first drive voltage terminal TDP and a second drive voltage terminal TDN, and a first drive voltage terminal TDP. A voltage (voltage of the capacitor Z) between the second drive voltage terminal TDN and the bridge circuit Y which outputs the motor drive voltage to the motor M to drive the motor M is supplied.
　例えば、駆動制御部ＰＤＵは、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間の電圧からブリッジ回路Ｙによりモータ駆動電圧を生成して、当該モータ駆動電圧によりモータを駆動するようになっている。 For example, the drive control unit PDU generates a motor drive voltage by the bridge circuit Y from the voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN, and drives the motor by the motor drive voltage. It is supposed to be.
　この駆動制御部ＰＤＵは、通信線ＣＡＮを介して、第１の正バッテリ端子Ｔ１Ｐ及び第１の負バッテリ端子Ｔ１Ｎに接続された第１のバッテリＢ１の識別情報を含むデータと、第２の正バッテリ端子Ｔ１Ｐ及び第２の負バッテリ端子Ｔ２Ｎに接続された第２のバッテリＢ２の識別情報を含むデータと、を受信するようになっている。 The drive control unit PDU includes data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N via the communication line CAN, and a second positive Data including identification information of the second battery B2 connected to the battery terminal T1P and the second negative battery terminal T2N is received.
　これにより、駆動制御部ＰＤＵは、第１及び第２のバッテリＢ１、Ｂ２の識別情報を認識して、第１のバッテリＢ１と第２のバッテリＢ２の電気的な回路接続（第１及び第２のコンタクタＣＡ、ＣＢ）を制御するとともに、第１のバッテリＢ１及び第２のバッテリＢ２の充放電を制御するようになっている。 Thus, the drive control unit PDU recognizes the identification information of the first and second batteries B1 and B2, and electrically connects the first battery B1 to the second battery B2 (first and second circuit connections). And the charge and discharge of the first battery B1 and the second battery B2 are controlled.
　例えば、駆動制御部ＰＤＵは、第１のバッテリＢ１及び第２のバッテリＢ２を放電する場合（車両の走行時）には、第１のコンタクタＣＡをオンし且つ第２のコンタクタＣＢをオフすることで、第１のバッテリＢ１と第２のバッテリＢ２とを直列に接続するようになっている。 For example, when discharging the first battery B1 and the second battery B2 (when the vehicle is traveling), the drive control unit PDU turns on the first contactor CA and turns off the second contactor CB. Then, the first battery B1 and the second battery B2 are connected in series.
　一方、駆動制御部ＰＤＵは、第１のバッテリＢ１及び第２のバッテリＢ２を充電する場合（充電器ＣＨによる充電時）には、第１のコンタクタＣＡをオフし且つ第２のコンタクタＣＢをオンすることで、第１のバッテリＢ１と第２のバッテリＢ２とを並列に接続するようになっている。 On the other hand, when charging the first battery B1 and the second battery B2 (when charging by the charger CH), the drive control unit PDU turns off the first contactor CA and turns on the second contactor CB. By doing this, the first battery B1 and the second battery B2 are connected in parallel.
　また、駆動制御部ＰＤＵは、スイッチ回路ＳＷがオンすると、スイッチ回路ＳＷを介して基準バッテリＫの基準電圧が供給されて起動するようになっている。 Further, when the switch circuit SW is turned on, the drive control unit PDU is supplied with the reference voltage of the reference battery K via the switch circuit SW and starts up.
　そして、この駆動制御部ＰＤＵは、起動後、第１のバッテリＢ１を起動させて通信線ＣＡＮを介して通信して第１のバッテリＢ１の識別情報を設定し、その後、第２のバッテリＢ２を起動させて通信線ＣＡＮを介して通信して第２のバッテリＢ２の識別情報を、第１のバッテリＢ１の識別情報と異なるように設定するようになっている。 Then, after activation, the drive control unit PDU activates the first battery B1 and communicates via the communication line CAN to set identification information of the first battery B1, and then the second battery B2 is The identification information of the second battery B2 is set to be different from the identification information of the first battery B1 by activating and communicating via the communication line CAN.
　また、駆動制御部ＰＤＵは、通信線ＣＡＮを介して、マネジメント部ＢＭＵ１、ＢＭＵ２から複数の情報を取得するようになっている。特に、駆動制御部ＰＤＵは、マネジメント部ＢＭＵ１、ＢＭＵ２が出力した第１のバッテリＢ１、第２のバッテリＢ２の状態に関するバッテリ情報に基づいて、第１のバッテリＢ１の状態が正常であるか又は異常であるか（故障しているか）を判断するようになっている。 Further, the drive control unit PDU is configured to obtain a plurality of pieces of information from the management units BMU1 and BMU2 via the communication line CAN. In particular, the drive control unit PDU determines that the state of the first battery B1 is normal or abnormal based on battery information on the state of the first battery B1 and the second battery B2 output from the management units BMU1 and BMU2. It is determined to be (whether it is broken).
　ここで、この駆動制御部ＰＤＵは、モータＭの駆動機能を停止する場合には、例えば、ブリッジ回路Ｙのトランジスタを全てオープンにし、若しくは、ハイサイド又はローサイドのトランジスタをショートにするようになっている。 Here, when the drive control unit PDU stops the drive function of the motor M, for example, all the transistors of the bridge circuit Y are opened, or the high side or low side transistors are shorted. There is.
　なお、この駆動制御部ＰＤＵは、通信線ＣＡＮを介して既述の充電器ＣＨと通信できるようになっている。そして、駆動制御部ＰＤＵは、充電器ＣＨが基準充電端子ＴＣＳに接続されると、充電器ＣＨが出力する第１の起動電圧が基準充電端子ＴＣＳ及び駆動制御部用電源端子ＴＧを介して供給されて起動するようになっている。 The drive control unit PDU can communicate with the above-described charger CH via the communication line CAN. Then, when the charger CH is connected to the reference charging terminal TCS, the drive control unit PDU supplies the first activation voltage output from the charger CH via the reference charging terminal TCS and the drive control unit power terminal TG. It is supposed to be launched.
　そして、充電器ＣＨも、通信線ＣＡＮを介して、第１の正バッテリ端子Ｔ１Ｐ及び第１の負バッテリ端子Ｔ１Ｎに接続された第１のバッテリＢ１の識別情報を含むデータと、第２の正バッテリ端子Ｔ１Ｐ及び第２の負バッテリ端子Ｔ２Ｎに接続された第２のバッテリＢ２の識別情報を含むデータと、を受信するようになっている。 The charger CH also includes data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N via the communication line CAN, and the second positive Data including identification information of the second battery B2 connected to the battery terminal T1P and the second negative battery terminal T2N is received.
　そして、充電器ＣＨは、充電時に、第１のバッテリＢ１を起動させて通信線ＣＡＮを介して通信して第１のバッテリＢ１の識別情報を設定し、その後、第２のバッテリＢ２を起動させて通信線ＣＡＮを介して通信して第２のバッテリＢ２の識別情報を、第１のバッテリＢ１の識別情報と異なるように設定することが可能になっている。 Then, when charging, the charger CH activates the first battery B1, communicates via the communication line CAN, sets identification information of the first battery B1, and then activates the second battery B2. By communicating through the communication line CAN, the identification information of the second battery B2 can be set to be different from the identification information of the first battery B1.
　なお、駆動制御部ＰＤＵは、上述の第１及び第２のバッテリＢ１、Ｂ２の識別情報の設定後に、第１のバッテリＢ１及び第２のバッテリＢ２の電圧をモータに供給して、モータＭを駆動する場合には、第１のバッテリＢ１と第２のバッテリＢ２とが直列に接続されるように、回路接続（第１及び第２のコンタクタＣＡ、ＣＢ）を制御して、第１のバッテリＢ１と第２のバッテリＢ２とを直列した電圧により、モータＭを駆動する。このモータＭの駆動により、車輪が回転して、電動二輪車が走行することなる。 The drive control unit PDU supplies the voltage of the first battery B1 and the second battery B2 to the motor after setting the identification information of the first and second batteries B1 and B2 described above, and the motor M is generated. When driving, the circuit connection (first and second contactors CA, CB) is controlled so that the first battery B1 and the second battery B2 are connected in series, and the first battery The motor M is driven by a voltage in which B1 and the second battery B2 are connected in series. By driving the motor M, the wheels rotate and the electric two-wheeled vehicle travels.
　また、駆動制御部ＰＤＵは、上述の第１及び第２のバッテリＢ２の識別情報の設定後に、第１及び第２のバッテリＢ１、Ｂ２の識別情報の設定後に、第１のバッテリＢ１及び第２のバッテリＢ２を充電器ＣＨにより充電する場合には、第１のバッテリＢ１と第２のバッテリＢ２とが並列に接続されるように、回路接続（第１及び第２のコンタクタＣＡ、ＣＢ）を制御する。 Further, after setting the identification information of the first and second batteries B2, the drive control unit PDU sets the identification information of the first and second batteries B1 and B2, and then sets the first battery B1 and the second battery B1. When charging the battery B2 by the charger CH, the circuit connection (first and second contactors CA, CB) is made such that the first battery B1 and the second battery B2 are connected in parallel. Control.
　そして、充電器ＣＨは、第１のバッテリＢ１と第２のバッテリＢ２とが並列に接続された状態で、第１のバッテリＢ１及び第２のバッテリＢ２を並列に充電する。 Then, the charger CH charges the first battery B1 and the second battery B2 in parallel in a state where the first battery B1 and the second battery B2 are connected in parallel.
　次に、以上のような構成を有する電力制御装置１００の制御方法（第１のコンタクタＣＡ及び第２のコンタクタＣＢの故障を判定する故障判定モード）の動作の例について説明する。 Next, an example of the operation of the control method of the power control apparatus 100 having the configuration as described above (a failure determination mode for determining a failure of the first contactor CA and the second contactor CB) will be described.
　図２は、図１に示す電力制御装置１００の第２のコンタクタＣＢの故障を判定する動作の一例を説明するための図である。また、図３は、図１に示す電力制御装置１００の第１のコンタクタＣＡの故障を判定する動作の一例を説明するための図である。また、図４は、図１に示す電力制御装置１００の故障判定モードにおける第１及び第２のコンタクタＣＡ、ＣＢ、第１及び第２のバッテリＢ１、Ｂ２の動作の一例を示す図である。 FIG. 2 is a diagram for explaining an example of an operation of determining a failure of the second contactor CB of the power control apparatus 100 shown in FIG. FIG. 3 is a diagram for explaining an example of an operation of determining a failure of the first contactor CA of the power control apparatus 100 shown in FIG. FIG. 4 is a diagram showing an example of the operation of the first and second contactors CA and CB and the first and second batteries B1 and B2 in the failure determination mode of the power control apparatus 100 shown in FIG.
　既述のように、駆動制御部ＰＤＵは、第１のコンタクタＣＡ及び第２のコンタクタＣＢを制御することで、第１の正バッテリ端子Ｔ１Ｐ及び第１の負バッテリ端子Ｔ１Ｎに接続された第１のバッテリＢ１と、第２の正バッテリ端子Ｔ２Ｐ及び第２の負バッテリ端子Ｔ２Ｎに接続された第２のバッテリＢ２との電気的な回路接続を制御するとともに、第１のバッテリＢ１及び第２のバッテリＢ２の充放電を制御するようになっている。 As described above, the drive control unit PDU controls the first contactor CA and the second contactor CB to control the first positive battery terminal T1P and the first negative battery terminal T1N. Control the electrical circuit connection between the first battery B1 and the second battery B2 connected to the second positive battery terminal T2P and the second negative battery terminal T2N, and the first battery B1 and the second battery The charge and discharge of the battery B2 are controlled.
　そして、駆動制御部ＰＤＵは、第１のコンタクタＣＡ及び第２のコンタクタＣＢの故障を判定する故障判定モードにおいて、第１のバッテリＢ１と第２のバッテリとが並列又は直列に接続されるように第１のコンタクタＣＡ及び第２のコンタクタＣＢを制御したときの第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間のキャパシタ電圧に基づいて、第１のコンタクタＣＡ又は第２のコンタクタＣＢの少なくとも何れかの故障を判定するようになっている。 The drive control unit PDU is configured such that the first battery B1 and the second battery are connected in parallel or in series in the failure determination mode in which the failure of the first contactor CA and the second contactor CB is determined. The first contactor CA or the second contactor CA is controlled based on a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN when the first contactor CA and the second contactor CB are controlled. At least one failure of the contactor CB is determined.
　ここで、駆動制御部ＰＤＵが、当該故障判定モードにおいて、第２のコンタクタＣＢの故障を判定する動作の一例について説明する。 Here, an example of operation in which the drive control unit PDU determines the failure of the second contactor CB in the failure determination mode will be described.
　先ず、駆動制御部ＰＤＵは、通信線ＣＡＮを介して、第１のマネジメント部ＢＭＵ１から第１のバッテリＢ１が正常に接続されている旨を通知され且つ第２のマネジメント部ＢＭＵ２から第２のバッテリＢ２が正常に接続されている旨を通知された後に、故障判定モードを実行する。また、この故障判定モードは、駆動制御部ＰＤＵが第１の整流素子Ｄ１及び第２の整流素子Ｄ２が正常に動作していることが確認した後、実行されるようにしてもよい。 First, the drive control unit PDU is notified that the first battery B1 is normally connected from the first management unit BMU1 via the communication line CAN, and the second battery from the second management unit BMU2 After being notified that B2 is normally connected, the failure determination mode is executed. Also, this failure determination mode may be executed after the drive control unit PDU confirms that the first rectifier element D1 and the second rectifier element D2 are operating normally.
　例えば、図２に示すように、駆動制御部ＰＤＵは、故障判定モードにおいて、第１のコンタクタＣＡをオフ（遮断状態）に制御し且つ第２のコンタクタＣＢをオフ（遮断状態）に制御した後、キャパシタＺに電荷が残っていない状態で、第１のバッテリＢ１を起動（オン）させて第１のバッテリ電圧を出力させる（図４の時刻Ｎ１）。 For example, as shown in FIG. 2, in the failure determination mode, the drive control unit PDU controls the first contactor CA to be off (cutoff state) and controls the second contactor CB to be off (cutoff state) The first battery B1 is activated (turned on) to output the first battery voltage in a state where no charge remains in the capacitor Z (time N1 in FIG. 4).
　なお、この時刻Ｎ１において、第２のバッテリＢ２は、起動していない（オフしている）。また、駆動制御部ＰＤＵは、故障判定モードにおいて第１のバッテリＢ１を起動させる前に、例えば、ブリッジ回路Ｙにより、キャパシタＺの電圧を放電する。 At this time N1, the second battery B2 is not activated (is off). In addition, the drive control unit PDU discharges the voltage of the capacitor Z by the bridge circuit Y, for example, before activating the first battery B1 in the failure determination mode.
　そして、駆動制御部ＰＤＵは、第１のバッテリＢ１から第１のバッテリ電圧を出力させた後、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間のキャパシタ電圧を検出する。 Then, the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN after outputting the first battery voltage from the first battery B1.
　そして、駆動制御部ＰＤＵは、検出した第１の検出電圧（キャパシタ電圧）が予め設定した第１の閾値電圧以上（第１のバッテリ電圧（４８Ｖ近傍））である場合には、第２のコンタクタＣＢがショート故障している（第２のコンタクタＣＢをオフに制御したにも拘わらず導通状態にある）と判定する。 Then, when the detected first detection voltage (capacitor voltage) is equal to or higher than the predetermined first threshold voltage (the first battery voltage (around 48 V)), the drive control unit PDU performs the second contactor. It is determined that CB has a short circuit failure (is in the conductive state despite the fact that the second contactor CB is controlled to be off).
　一方、駆動制御部ＰＤＵは、検出した当該第１の検出電圧が該第１の閾値電圧未満（０Ｖ近傍）である場合には、第２のコンタクタＣＢがショート故障していない（第２のコンタクタＣＢをオフに制御して正常に遮断状態にある）と判定する。 On the other hand, when the detected first detection voltage is less than the first threshold voltage (near 0 V), the drive control unit PDU does not cause a short circuit failure of the second contactor CB (second contactor CB is controlled to be off and it is determined that the switch is normally shut off.
　次に、駆動制御部ＰＤＵは、第２のコンタクタＣＢがショート故障していないと判定した場合、第２のコンタクタＣＢをオン（導通状態）に制御する（図４の時刻Ｎ２）。 Next, when it is determined that the second contactor CB does not have a short circuit failure, the drive control unit PDU controls the second contactor CB to be on (conductive state) (time N2 in FIG. 4).
　そして、駆動制御部ＰＤＵは、第２のコンタクタＣＢをオンに制御した後、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間のキャパシタ電圧を検出する。 Then, after controlling the second contactor CB to be turned on, the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
　そして、駆動制御部ＰＤＵは、検出した第２の検出電圧（キャパシタ電圧）が該第１の閾値電圧未満（０Ｖ近傍）である場合には、第２のコンタクタＣＢがオープン故障している（第２のコンタクタＣＢをオンに制御したにも拘わらず遮断状態にある）と判定する。 When the detected second detection voltage (capacitor voltage) is less than the first threshold voltage (near 0 V), the drive control unit PDU causes an open failure of the second contactor CB (the It is determined that the contactor CB is turned on despite the control of the second contactor CB.
　一方、駆動制御部ＰＤＵは、検出した当該第２の検出電圧が該第１の閾値電圧以上（第１のバッテリ電圧近傍）である場合には、第２のコンタクタＣＢがオープン故障していない（第２のコンタクタＣＢをオンに制御して正常に導通状態にある）と判定する。 On the other hand, when the detected second detected voltage is equal to or higher than the first threshold voltage (near the first battery voltage), the drive control unit PDU does not have an open failure in the second contactor CB (see FIG. It is determined that the second contactor CB is controlled to be on and normally in conduction state).
　上述の駆動制御部ＰＤＵの制御動作により、第２のコンタクタＣＢの故障を判定することができる。 The failure of the second contactor CB can be determined by the control operation of the drive control unit PDU described above.
　次に、駆動制御部ＰＤＵが、故障判定モードにおいて、第１のコンタクタＣＡの故障を判定する動作の一例について説明する。 Next, an example of operation in which the drive control unit PDU determines the failure of the first contactor CA in the failure determination mode will be described.
　既述の図４の時刻Ｎ２の後、駆動制御部ＰＤＵは、故障判定モードにおいて、第２のコンタクタＣＢがオープン故障していないと判定した場合、第２のコンタクタＣＢをオフ（遮断状態）に制御する（図４の時刻Ｎ３）。そして、駆動制御部ＰＤＵは、第２のコンタクタＣＢをオフに制御した後、例えば、図３に示すように、第２のバッテリＢ２を起動（オン）させて第２のバッテリ電圧を出力させる（図４の時刻Ｎ４）。 After time N2 in FIG. 4 described above, when the drive control unit PDU determines that the second contactor CB does not have an open failure in the failure determination mode, the second contactor CB is turned off (blocked state) It controls (time N3 of FIG. 4). Then, after controlling the second contactor CB to be turned off, for example, as shown in FIG. 3, the drive control unit PDU causes the second battery B2 to be activated (turned on) to output a second battery voltage (for example, as shown in FIG. Time N4 in FIG. 4).
　そして、駆動制御部ＰＤＵは、第２のバッテリＢ２から第２のバッテリ電圧を出力させた後、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間のキャパシタ電圧を検出する。 Then, after causing the second battery B2 to output the second battery voltage, the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
　そして、駆動制御部ＰＤＵは、検出した第３の検出電圧（キャパシタ電圧）が予め設定した既述の第１の閾値電圧よりも高い（第１のバッテリ電圧よりも高い）第２の閾値電圧以上（第１のバッテリ電圧に第２のバッテリ電圧を加算した電圧（９６Ｖ）近傍）である場合には、第１のコンタクタＣＡがショート故障している（第１のコンタクタＣＡをオフに制御したにも拘わらず導通状態にある）と判定する。 Then, the drive control unit PDU sets the detected third detection voltage (capacitor voltage) higher than the above-described first threshold voltage (predetermined than the first battery voltage) or higher to the second threshold voltage. In the case of (the voltage (near 96V) obtained by adding the second battery voltage to the first battery voltage), the first contactor CA is short-circuited (the first contactor CA is controlled to be off). Regardless, it is determined to be in a conducting state).
　一方、駆動制御部ＰＤＵは、検出した当該第３の検出電圧が該第２の閾値電圧未満である場合には、第１のコンタクタＣＡがショート故障していない（第１のコンタクタＣＡをオフに制御して正常に遮断状態にある）と判定する。 On the other hand, when the detected third detected voltage is less than the second threshold voltage, the drive control unit PDU does not cause a short circuit failure of the first contactor CA (turns off the first contactor CA). Control is determined to be normally shut off).
　そして、駆動制御部ＰＤＵは、第１のコンタクタＣＡがショート故障していないと判定した場合、第１のコンタクタＣＡをオン（導通状態）に制御する（図４の時刻Ｎ５）。 Then, when it is determined that the first contactor CA does not have a short circuit failure, the drive control unit PDU controls the first contactor CA to be on (conductive state) (time N5 in FIG. 4).
　そして、駆動制御部ＰＤＵは、第１のコンタクタＣＡをオン（導通状態）に制御した後、第１の駆動電圧端子ＴＤＰと第２の駆動電圧端子ＴＤＮとの間のキャパシタ電圧を検出する。 Then, after controlling the first contactor CA to be on (conductive state), the drive control unit PDU detects a capacitor voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN.
　そして、駆動制御部ＰＤＵは、検出した第４の検出電圧（キャパシタ電圧）が該第２の閾値電圧未満（４８Ｖ近傍）である場合には、第１のコンタクタＣＡがオープン故障している（第１のコンタクタＣＡをオンに制御したにも拘わらず遮断状態にある）と判定する。 When the detected fourth detection voltage (capacitor voltage) is less than the second threshold voltage (near 48 V), the drive control unit PDU causes an open failure in the first contactor CA (the It is determined that the contactor CA is turned on despite the fact that the contactor CA is turned on.
　一方、駆動制御部ＰＤＵは、検出した当該第４の検出電圧が該第２の閾値電圧以上（９６Ｖ近傍）である場合には、第１のコンタクタＣＢがオープン故障していない（第１のコンタクタＣＡをオンに制御して正常に導通状態にある）と判定する。 On the other hand, when the detected fourth detection voltage is equal to or higher than the second threshold voltage (near 96 V), the drive control unit PDU does not have an open failure in the first contactor CB (a first contactor CA is controlled to be on, and it is determined that the circuit is normally conducted).
　上述の駆動制御部ＰＤＵの制御動作により、第１のコンタクタＣＡの故障を判定することができる。 The failure of the first contactor CA can be determined by the control operation of the drive control unit PDU described above.
　なお、駆動制御部ＰＤＵは、上述の故障判定モードの後の駆動モードにおいて、第１のバッテリＢ１及び第２のバッテリＢ２の電圧をモータに供給して、モータＭを駆動する場合には、第１のバッテリＢ１と第２のバッテリＢ２とが直列に接続されるように、第１のコンタクタＣＡ及び第２のコンタクタＣＢを制御して、第１のバッテリＢ１と第２のバッテリＢ２とを直列した電圧により、モータＭを駆動する。 The drive control unit PDU supplies the voltages of the first battery B1 and the second battery B2 to the motor to drive the motor M in the drive mode after the failure determination mode described above. The first contactor CA and the second contactor CB are controlled such that the first battery B1 and the second battery B2 are connected in series, and the first battery B1 and the second battery B2 are connected in series The motor M is driven by the output voltage.
　また、駆動制御部ＰＤＵは、上述の故障判定モードの後の充電モードにおいて、第１のバッテリＢ１及び第２のバッテリＢ２を充電器ＣＨにより充電する場合には、第１のバッテリＢ１と第２のバッテリＢ２とが並列に接続されるように、第１のコンタクタＣＡ及び第２のコンタクタＣＢを制御して、充電器ＣＨにより第１のバッテリＢ１及び第２のバッテリＢ２を並列に充電する。 In addition, in the charging mode after the above-described failure determination mode, the drive control unit PDU is configured to charge the first battery B1 and the second battery B1 when charging the first battery B1 and the second battery B2 with the charger CH. The first contactor CA and the second contactor CB are controlled such that the first battery B1 and the second battery B2 are charged in parallel by the charger CH such that the first battery B2 and the second battery B2 are connected in parallel.
　以上のように、本発明の一態様に係る電力制御装置は、第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、充電器の高電位側の出力が接続され、充電器の高電位側の電圧が印加される第１の充電端子と、充電器の低電位側の出力が接続され、充電器の低電位側の電圧が印加される第２の充電端子と、第１の正バッテリ端子に接続された第１の駆動電圧端子と、第２の充電端子に接続された第２の駆動電圧端子と、第１ノードが第１の充電端子に接続され、第２ノードが第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、第１ノードが第１の充電端子に接続され、第２ノードが第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、第１の負バッテリ端子と第２の正バッテリ端子との間に接続された第１のコンタクタと、第１の負バッテリ端子と第２の充電端子との間に接続された第２のコンタクタと、第１のコンタクタ及び第２のコンタクタを制御することで、第１の正バッテリ端子及び第１の負バッテリ端子に接続された第１のバッテリと、第２の正バッテリ端子及び第２の負バッテリ端子に接続された第２のバッテリとの電気的な回路接続を制御するとともに、第１のバッテリ及び第２のバッテリの充放電を制御するものであり、第１の駆動電圧端子と第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部と、を備える。 As described above, in the power control device according to one aspect of the present invention, the first positive battery terminal to which the positive electrode of the first battery can be connected and the negative electrode of the first battery can be connected. A first negative battery terminal, a second positive battery terminal to which the positive electrode of the second battery is connectable, and a second negative battery terminal to which the negative electrode of the second battery is connectable; The first charge terminal to which the high potential side output of the charger is connected and the high potential side voltage of the charger is applied is connected to the low potential side output of the charger, and the low potential side of the charger , A first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and The node is connected to the first charging terminal and the second node to the first positive battery terminal A first rectifier element connected to prevent reverse current flow, a first node connected to the first charge terminal, and a second node connected to the second positive battery terminal to prevent reverse current flow Connected between the first rectifier and the first contactor connected between the first negative battery terminal and the second positive battery terminal, and between the first negative battery terminal and the second charging terminal A second contactor, and a first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor, and a second positive battery It controls the electrical circuit connection with the second battery connected to the terminal and the second negative battery terminal, and controls the charge and discharge of the first battery and the second battery. Between the drive voltage terminal and the second drive voltage terminal And a drive controller with connected capacitors.
　そして、駆動制御部は、第１のコンタクタ及び第２のコンタクタの故障を判定する故障判定モードにおいて、第１のバッテリと第２のバッテリとが並列又は直列に接続されるように第１のコンタクタ及び第２のコンタクタを制御したときの第１の駆動電圧端子と第２の駆動電圧端子との間のキャパシタ電圧に基づいて、第１のコンタクタ又は第２のコンタクタの少なくとも何れかの故障を判定する。 Then, in the failure determination mode in which the drive control unit determines the failure of the first contactor and the second contactor, the first contactor is connected such that the first battery and the second battery are connected in parallel or in series. And determining a failure of at least one of the first contactor and the second contactor based on the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal when controlling the second contactor Do.
　以上のように、実施形態に係る電力制御装置によれば、複数のバッテリを並列又は直列に接続するためのコンタクタの故障診断を実行することができる。 As described above, according to the power control device according to the embodiment, failure diagnosis of a contactor for connecting a plurality of batteries in parallel or in series can be performed.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These embodiments can be implemented in other various forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and the equivalents thereof as well as included in the scope and the gist of the invention.
１００　電力制御装置
ＴＫ　基準バッテリ端子
ＴＣＳ　基準充電端子
Ｔ１Ｐ　第１の正バッテリ端子
Ｔ１Ｎ　第１の負バッテリ端子
Ｔ２Ｐ　第２の正バッテリ端子
Ｔ２Ｎ　第２の負バッテリ端子
Ｔ１Ｂ　第１のバッテリ用電源端子
Ｔ２Ｂ　第２のバッテリ用電源端子
ＴＤＰ　第１の駆動電圧端子
ＴＤＮ　第２の駆動電圧端子
ＣＡＮ　通信線
ＴＰＳ２　第１の起動電圧端子
ＴＣＯＵＴ　第２の起動電圧端子
ＴＣＰ　第１の充電端子
ＴＣＮ　第２の充電端子
ＴＧ　駆動制御部用電源端子
ＳＷ　スイッチ回路
Ｘ　メインスイッチ制御部
ＰＤＵ　駆動制御部
ＤＲ　ダウンレギュレータ
ＤＡ　第１の整流素子
ＤＢ　第２の整流素子
ＣＡ　第１のコンタクタ
ＣＢ　第２のコンタクタ 100 power control device TK reference battery terminal TCS reference charging terminal T1P first positive battery terminal T1N first negative battery terminal T2P second positive battery terminal T2N second negative battery terminal T1B first battery power terminal T2B first 2, battery power supply terminal TDP first drive voltage terminal TDN second drive voltage terminal CAN communication line TPS2 first start voltage terminal TCOUT second start voltage terminal TCP first charge terminal TCN second charge terminal TG Drive control unit power supply terminal SW Switch circuit X Main switch control unit PDU Drive control unit DR Down regulator DA First rectifying element DB Second rectifying element CA First contactor CB Second contactor

Claims (15)

  1. 　第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び前記第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、
    　第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び前記第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、
    　充電器の高電位側の出力が接続され、前記充電器の高電位側の電圧が印加される第１の充電端子と、
    　前記充電器の低電位側の出力が接続され、前記充電器の低電位側の電圧が印加される第２の充電端子と、
    　前記第１の正バッテリ端子に接続された第１の駆動電圧端子と、
    　前記第２の充電端子に接続された第２の駆動電圧端子と、
    　第１ノードが前記第１の充電端子に接続され、第２ノードが前記第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、
    　第１ノードが前記第１の充電端子に接続され、第２ノードが前記第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、
    　前記第１の負バッテリ端子と前記第２の正バッテリ端子との間に接続された第１のコンタクタと、
    　前記第１の負バッテリ端子と前記第２の充電端子との間に接続された第２のコンタクタと、
    　前記第１のコンタクタ及び前記第２のコンタクタを制御することで、前記第１の正バッテリ端子及び第１の負バッテリ端子に接続された前記第１のバッテリと、前記第２の正バッテリ端子及び第２の負バッテリ端子に接続された前記第２のバッテリとの電気的な回路接続を制御するとともに、前記第１のバッテリ及び前記第２のバッテリの充放電を制御するものであり、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部と、を備え、
    　前記駆動制御部は、
    　前記第１のコンタクタ及び前記第２のコンタクタの故障を判定する故障判定モードにおいて、
    　前記第１のバッテリと前記第２のバッテリとが並列又は直列に接続されるように前記第１のコンタクタ及び前記第２のコンタクタを制御したときの前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧に基づいて、前記第１のコンタクタ又は前記第２のコンタクタの少なくとも何れかの故障を判定する
    　ことを特徴とする電力制御装置。     A first positive battery terminal to which the positive electrode of the first battery is connectable, and a first negative battery terminal to which the negative electrode of the first battery is connectable;
    A second positive battery terminal to which the positive electrode of the second battery is connectable, and a second negative battery terminal to which the negative electrode of the second battery is connectable;
    A first charging terminal connected to the high potential side output of the charger, to which a voltage on the high potential side of the charger is applied;
    A second charge terminal connected to the low potential side output of the charger and to which a low potential side voltage of the charger is applied;
    A first drive voltage terminal connected to the first positive battery terminal;
    A second drive voltage terminal connected to the second charging terminal;
    A first rectifier element connected to the first charging terminal and connected to the first positive battery terminal to prevent the backflow of current;
    A second rectifying element connected to the first charging terminal and connected to the second positive battery terminal for preventing the backflow of current;
    A first contactor connected between the first negative battery terminal and the second positive battery terminal;
    A second contactor connected between the first negative battery terminal and the second charging terminal;
    The first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor, the second positive battery terminal, and It controls electrical circuit connection with the second battery connected to the second negative battery terminal, and controls charging / discharging of the first battery and the second battery, A drive control unit having a capacitor connected between the first drive voltage terminal and the second drive voltage terminal;
    The drive control unit
    In a failure determination mode for determining failure of the first contactor and the second contactor,
    The first drive voltage terminal and the second when the first contactor and the second contactor are controlled so that the first battery and the second battery are connected in parallel or in series. A power control apparatus characterized in that a failure of at least one of the first contactor and the second contactor is determined based on a capacitor voltage to a drive voltage terminal.
  2. 　前記故障判定モードにおいて、
    　前記駆動制御部は、
    　前記第１のコンタクタをオフに制御し且つ前記第２のコンタクタをオフに制御した後、前記キャパシタに電荷が残っていない状態で、前記第１のバッテリを起動させて第１のバッテリ電圧を出力させ、
    　前記第１のバッテリから前記第１のバッテリ電圧を出力させた後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第１の検出電圧が予め設定した第１の閾値電圧以上である場合には、前記第２のコンタクタがショート故障していると判定し、一方、検出した前記第１の検出電圧が前記第１の閾値電圧未満である場合には、前記第２のコンタクタがショート故障していないと判定し、
    　前記第２のコンタクタがショート故障していないと判定した場合、前記第２のコンタクタをオンに制御した後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第２の検出電圧が前記第１の閾値電圧未満である場合には、前記第２のコンタクタがオープン故障していると判定し、一方、検出した前記第２の検出電圧が前記第１の閾値電圧以上である場合には、前記第２のコンタクタがオープン故障していないと判定する
    　ことを特徴とする請求項１に記載の電力制御装置。     In the failure determination mode,
    The drive control unit
    After controlling the first contactor to be turned off and controlling the second contactor to be turned off, the first battery is started to output a first battery voltage in a state where no electric charge remains in the capacitor Let
    After outputting the first battery voltage from the first battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected and detected. If the second contactor is equal to or greater than a preset first threshold voltage, it is determined that the second contactor has a short circuit failure, while the detected first detected voltage is less than the first threshold voltage. In some cases, it is determined that the second contactor is not short circuited,
    When it is determined that the second contactor does not have a short circuit failure, the second contactor is controlled to be turned on, and then the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is If the detected and detected second detection voltage is less than the first threshold voltage, it is determined that the second contactor has an open failure, while the detected second detection voltage is The power control apparatus according to claim 1, wherein if the voltage is equal to or higher than the first threshold voltage, it is determined that the second contactor does not have an open failure.
  3. 　前記故障判定モードにおいて、
    　前記駆動制御部は、
    　前記第２のコンタクタがオープン故障していないと判定した場合、前記第２のコンタクタをオフに制御した後、前記第２のバッテリを起動させて第２のバッテリ電圧を出力させ、
    　前記第２のバッテリから前記第２のバッテリ電圧を出力させた後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第３の検出電圧が予め設定した前記第１の閾値電圧よりも高い第２の閾値電圧以上である場合には、前記第１のコンタクタがショート故障していると判定し、一方、検出した前記第３の検出電圧が前記第２の閾値電圧未満である場合には、前記第１のコンタクタがショート故障していないと判定し、
    　前記第１のコンタクタがショート故障していないと判定した場合、前記第１のコンタクタをオンに制御した後、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧を検出し、検出した第４の検出電圧が前記第２の閾値電圧未満である場合には、前記第１のコンタクタがオープン故障していると判定し、一方、検出した前記第４の検出電圧が前記第２の閾値電圧以上である場合には、前記第１のコンタクタがオープン故障していないと判定する
    　ことを特徴とする請求項２に記載の電力制御装置。     In the failure determination mode,
    The drive control unit
    If it is determined that the second contactor does not have an open failure, the second contactor is controlled to be turned off, and then the second battery is activated to output a second battery voltage.
    After outputting the second battery voltage from the second battery, a capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is detected, and a third detection voltage detected If it is equal to or higher than a second threshold voltage higher than the first threshold voltage set in advance, it is determined that the first contactor has a short circuit failure, while the detected third detected voltage If it is less than the second threshold voltage, it is determined that the first contactor is not short circuited,
    When it is determined that the first contactor does not have a short circuit failure, the capacitor voltage between the first drive voltage terminal and the second drive voltage terminal is controlled after the first contactor is controlled to be turned on. If the detected and detected fourth detection voltage is less than the second threshold voltage, it is determined that the first contactor has an open failure, while the detected fourth detection voltage is The power control device according to claim 2, wherein if the voltage is equal to or higher than the second threshold voltage, it is determined that the first contactor does not have an open failure.
  4. 　前記駆動制御部は、
    　前記第１の駆動電圧端子と前記第２の駆動電圧端子との間の電圧からモータ駆動電圧を生成して、前記モータ駆動電圧によりモータを駆動する
    　ことを特徴とする請求項３に記載の電力制御装置。     The drive control unit
    The electric power according to claim 3, wherein a motor drive voltage is generated from a voltage between the first drive voltage terminal and the second drive voltage terminal, and the motor is driven by the motor drive voltage. Control device.
  5. 　前記駆動制御部は、
    　前記第１の駆動電圧端子と前記第２の駆動電圧端子との間の電圧が供給され、前記モータにモータ駆動電圧を出力して前記モータを駆動するブリッジ回路をさらに備え、
    　前記駆動制御部は、
    　前記故障判定モードにおいて前記第１のバッテリを起動させる前に、前記ブリッジ回路により、前記キャパシタの電圧を放電する
    　ことを特徴とする請求項４に記載の電力制御装置。     The drive control unit
    It further comprises a bridge circuit which is supplied with a voltage between the first drive voltage terminal and the second drive voltage terminal and outputs a motor drive voltage to the motor to drive the motor.
    The drive control unit
    The power control apparatus according to claim 4, wherein the voltage of the capacitor is discharged by the bridge circuit before activating the first battery in the failure determination mode.
  6. 　基準バッテリの正極が接続され、基準電圧が供給される基準バッテリ端子と、
    　前記充電器が接続可能になっている基準充電端子と、
    　一端が前記基準バッテリ端子に接続され、他端が前記基準充電端子、第１のバッテリ用電源端子及び駆動制御部用電源端子に接続されたスイッチ回路と、を備える
    　ことを特徴とする請求項３に記載の電力制御装置。     A reference battery terminal connected to a positive electrode of a reference battery and supplied with a reference voltage;
    A reference charging terminal to which the charger can be connected;
    A switch circuit comprising one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power supply terminal, and the drive control unit power supply terminal. The power control device according to claim 1.
  7. 　前記第１のバッテリは、
    　前記第１の正バッテリ端子と前記第１の負バッテリ端子との間の電圧を充電し又は前記第１の正バッテリ端子と前記第１の負バッテリ端子との間に充電電圧を放電する第１のセルと、
    　前記第１のバッテリ用電源端子に供給される前記基準電圧で起動し、前記第１のセルの状態を監視し、前記第１のセルの状態に関する情報を出力する第１のマネジメント部と、を備え、
    　前記第２のバッテリは、
    　前記第２の正バッテリ端子と前記第２の負バッテリ端子との間の電圧を充電し又は前記第２の正バッテリ端子と前記第２の負バッテリ端子との間に充電電圧を放電する第２のセルと、
    　前記駆動制御部から供給される第１の起動電圧又は前記充電器から供給される第２の起動電圧で起動し、前記第２のセルの状態を監視し、前記第２のセルの状態に関する情報を出力する第２のマネジメント部と、を備える
    　ことを特徴とする請求項６に記載の電力制御装置。     The first battery is
    First charging a voltage between the first positive battery terminal and the first negative battery terminal or discharging a charging voltage between the first positive battery terminal and the first negative battery terminal Cells, and
    A first management unit activated by the reference voltage supplied to the first battery power supply terminal, monitoring a state of the first cell, and outputting information on the state of the first cell; Equipped
    The second battery is
    Second charging the voltage between the second positive battery terminal and the second negative battery terminal or discharging the charging voltage between the second positive battery terminal and the second negative battery terminal Cells, and
    It starts with the 1st starting voltage supplied from the said drive control part, or the 2nd starting voltage supplied from the said charger, monitors the state of the said 2nd cell, and the information regarding the state of the said 2nd cell The power control apparatus according to claim 6, further comprising: a second management unit that outputs
  8. 　前記駆動制御部は、
    　前記第１のマネジメント部から前記第１のバッテリが正常に接続されている旨を通知され且つ第２のマネジメント部から前記第２のバッテリが正常に接続されている旨を通知された後に、前記故障判定モードを実行する
    　ことを特徴とする請求項７に記載の電力制御装置。     The drive control unit
    After being notified by the first management unit that the first battery is normally connected and notified by the second management unit that the second battery is normally connected, The power control apparatus according to claim 7, wherein the failure determination mode is executed.
  9. 　前記駆動制御部は
    　前記故障判定モードの後の駆動モードにおいて、前記第１のバッテリ及び前記第２のバッテリの電圧をモータに供給して、前記モータを駆動する場合には、前記第１のバッテリと前記第２のバッテリとが直列に接続されるように、前記第１のコンタクタ及び前記第２のコンタクタを制御して、前記第１のバッテリと前記第２のバッテリとを直列した電圧により、前記モータを駆動する
    　ことを特徴とする請求項５に記載の電力制御装置。     The drive control unit supplies a voltage of the first battery and the second battery to a motor in a drive mode after the failure determination mode, and drives the motor. Control the first contactor and the second contactor such that the first battery and the second battery are connected in series so that the second battery and the second battery are connected in series, The power control apparatus according to claim 5, wherein the motor is driven.
  10. 　前記駆動制御部は
    　前記故障判定モードの後の充電モードにおいて、前記第１のバッテリ及び前記第２のバッテリを前記充電器により充電する場合には、前記第１のバッテリと前記第２のバッテリとが並列に接続されるように、前記第１のコンタクタ及び前記第２のコンタクタを制御して、前記充電器により前記第１のバッテリ及び前記第２のバッテリを並列に充電する
    　ことを特徴とする請求項５に記載の電力制御装置。     When charging the first battery and the second battery by the charger in the charge mode after the failure determination mode, the drive control unit is configured to transmit the first battery and the second battery. And controlling the first contactor and the second contactor such that the first battery and the second battery are charged in parallel by the charger. The power control device according to claim 5.
  11. 　前記駆動制御部は、
    　前記第１のバッテリ及び前記第２のバッテリを放電する場合には、前記第１のコンタクタをオンし且つ前記第２のコンタクタをオフすることで、前記第１のバッテリと前記第２のバッテリとを直列に接続し、
    　一方、前記第１のバッテリ及び前記第２のバッテリを充電する場合には、第１のコンタクタをオフし且つ第２のコンタクタをオンすることで、前記第１のバッテリと前記第２のバッテリとを並列に接続する
    　ことを特徴とする請求項１に記載の電力制御装置。     The drive control unit
    When discharging the first battery and the second battery, the first battery and the second battery are turned on by turning on the first contactor and turning off the second contactor. Connected in series,
    On the other hand, when charging the first battery and the second battery, the first battery and the second battery are turned off by turning off the first contactor and turning on the second contactor. The power control apparatus according to claim 1, wherein the power control apparatus is connected in parallel.
  12. 　前記第２のバッテリの構成は、前記第１のバッテリの構成と同じであることを特徴とする請求項３に記載の電力制御装置。 The power control apparatus according to claim 3, wherein the configuration of the second battery is the same as the configuration of the first battery.
  13. 　前記電力制御装置は電動二輪車に積載され、前記モータは前記電動二輪車の車輪に接続され、前記駆動制御部は、前記モータの駆動を制御することにより、前記車輪の回転を制御する
    　ことを特徴とする請求項５に記載の電力制御装置。     The power control device is mounted on an electric two-wheeled vehicle, the motor is connected to a wheel of the electric two-wheeled vehicle, and the drive control unit controls the rotation of the wheel by controlling the driving of the motor. The power control device according to claim 5.
  14. 　前記基準バッテリは、鉛バッテリであり、
    　前記第１及び第２のバッテリは、リチウムバッテリであることを特徴とする請求項７に記載の電力制御装置。     The reference battery is a lead battery,
    The power control apparatus according to claim 7, wherein the first and second batteries are lithium batteries.
  15. 　第１のバッテリの正極が接続可能になっている第１の正バッテリ端子、及び前記第１のバッテリの負極が接続可能になっている第１の負バッテリ端子と、第２のバッテリの正極が接続可能になっている第２の正バッテリ端子、及び前記第２のバッテリの負極が接続可能になっている第２の負バッテリ端子と、充電器の高電位側の出力が接続され、前記充電器の高電位側の電圧が印加される第１の充電端子と、前記充電器の低電位側の出力が接続され、前記充電器の低電位側の電圧が印加される第２の充電端子と、前記第１の正バッテリ端子に接続された第１の駆動電圧端子と、前記第２の充電端子に接続された第２の駆動電圧端子と、第１ノードが前記第１の充電端子に接続され、第２ノードが前記第１の正バッテリ端子に接続され、電流の逆流を防止する第１の整流素子と、第１ノードが前記第１の充電端子に接続され、第２ノードが前記第２の正バッテリ端子に接続され、電流の逆流を防止する第２の整流素子と、前記第１の負バッテリ端子と前記第２の正バッテリ端子との間に接続された第１のコンタクタと、前記第１の負バッテリ端子と前記第２の充電端子との間に接続された第２のコンタクタと、前記第１のコンタクタ及び前記第２のコンタクタを制御することで、前記第１の正バッテリ端子及び第１の負バッテリ端子に接続された前記第１のバッテリと、前記第２の正バッテリ端子及び第２の負バッテリ端子に接続された前記第２のバッテリとの電気的な回路接続を制御するとともに、前記第１のバッテリ及び前記第２のバッテリの充放電を制御するものであり、前記第１の駆動電圧端子と前記第２の駆動電圧端子との間に接続されたキャパシタを有する駆動制御部とを備えた電力制御装置の制御方法であって、
    　前記第１のコンタクタ及び前記第２のコンタクタの故障を判定する故障判定モードにおいて、
    　前記駆動制御部により、前記第１のバッテリと前記第２のバッテリとが並列又は直列に接続されるように前記第１のコンタクタ及び前記第２のコンタクタを制御したときの前記第１の駆動電圧端子と前記第２の駆動電圧端子との間のキャパシタ電圧に基づいて、前記第１のコンタクタ又は前記第２のコンタクタの少なくとも何れかの故障を判定する
    　ことを特徴とする電力制御装置の制御方法の制御方法。     The first positive battery terminal to which the positive electrode of the first battery can be connected, the first negative battery terminal to which the negative electrode of the first battery can be connected, and the positive electrode of the second battery A second positive battery terminal that can be connected, and a second negative battery terminal that can be connected to the negative electrode of the second battery, and an output on the high potential side of a charger are connected, the charging A first charging terminal to which the high potential side voltage of the charger is applied, and a second charging terminal to which the low potential side output of the charger is connected and to which the low potential side voltage of the charger is applied A first drive voltage terminal connected to the first positive battery terminal, a second drive voltage terminal connected to the second charge terminal, and a first node connected to the first charge terminal The second node is connected to the first positive battery terminal, and A first rectifying element for preventing current flow, and a second rectifying element for connecting a first node to the first charging terminal and a second node to the second positive battery terminal to prevent reverse current flow Element, a first contactor connected between the first negative battery terminal and the second positive battery terminal, and a connection between the first negative battery terminal and the second charging terminal A second contactor, and the first battery connected to the first positive battery terminal and the first negative battery terminal by controlling the first contactor and the second contactor; Controlling the electrical circuit connection with the second battery connected to the second positive battery terminal and the second negative battery terminal, and charging / discharging the first battery and the second battery Control, and A control method of a power control apparatus and a drive control section having a capacitor connected between the first driving voltage terminal and the second driving voltage terminal,
    In a failure determination mode for determining failure of the first contactor and the second contactor,
    The first drive voltage when the first contactor and the second contactor are controlled by the drive control unit to connect the first battery and the second battery in parallel or in series. A control method of a power control apparatus, wherein a failure of at least one of the first contactor and the second contactor is determined based on a capacitor voltage between a terminal and the second drive voltage terminal. Control method.
PCT/JP2017/032576 2017-09-08 2017-09-08 Power control device and control method for power control device WO2019049338A1 (en)

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