TWI678861B - Power control device and control method for power control device - Google Patents

Abstract

After the switch circuit is turned on, the drive control unit of the power control device is started by being supplied with the reference voltage of the reference battery through the switch circuit. After the startup, the first battery is started and the communication is performed through the communication line to set the first The identification information of the battery will then start the second battery and communicate through the communication line to set the identification information of the second battery and set it to be different from the identification information of the first battery.

Description

Power control device and control method for power control device

The invention relates to a power control device and a control method of the power control device.

Conventionally, an electric two-wheeled vehicle using a motor as a power source has been known. In the conventional electric two-wheeled vehicle, one battery was used as a power source.

Here, when a plurality of (for example, two) mobile batteries are applied to the electric two-wheeled vehicle, a case where a plurality of batteries are connected in parallel or in series is assumed (for example, refer to Patent Documents 1 and 2).

As described above, when a plurality of batteries are activated, expandability for identification (connection determination) of the batteries is required, and it is required to respond at a low cost.

Prior art literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. 2014-155377

Patent Document 2: Japanese Patent Laid-Open No. 2015-133766

Summary of invention

Therefore, an object of the present invention is to provide a power control device, which can improve the expandability for identifying the batteries when starting a plurality of batteries, and pursue low cost.

A power control device according to an aspect of the present invention includes: a reference battery terminal connected to a positive electrode of the reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; and a first positive battery terminal. And a first negative battery terminal, the first positive battery terminal can be connected to the positive electrode of the first battery, the first negative battery terminal can be connected to the negative electrode of the aforementioned first battery, the second positive battery terminal and the second negative battery terminal, the first 2 The positive battery terminal can be connected to the positive electrode of the second battery, and the second negative battery terminal can be connected to the negative electrode of the second battery; the switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charging terminal and the first battery. Power terminal and power terminal for drive control unit; communication line for communication between the first battery connected to the first positive battery terminal and the first negative battery terminal, and for connection to the second positive battery terminal Communicates with the second battery of the second negative battery terminal; and the drive control unit receives the following data through the communication line, that is, including the connection to the front The first positive battery terminal and the first negative battery terminal The data including the identification information of the first battery, and the data including the identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal, thereby identifying the first and second batteries. The aforementioned identification information is used to control the electrical circuit connection between the first battery and the second battery, and to control the charge and discharge of the first battery and the second battery, and in the initial state before the first battery is connected. The identification information of the first battery is set as initial identification information. In the initial state before the second battery is connected, the identification information of the second battery is set as the initial identification information, and the drive control unit is in the switch circuit. After being turned on, the reference voltage supplied to the reference battery is started through the switch circuit, and after the startup, the first battery is started, and communication is performed through the communication line to set the identification information of the first battery. After that, the second battery will be activated and communicate through the communication line to set the identification information of the second battery, and set to be different The identification information of the first cell.

The power control device is characterized in that the drive control unit generates a motor drive voltage from the voltages of the first battery and the second battery, and drives the motor by the motor drive voltage.

The power control device further includes a first startup voltage terminal connected to the drive control unit, a second startup voltage terminal connected to the charger, and the first battery power terminal connected to the first battery. 1 battery, which is connected to the other end of the aforementioned switching circuit and the reference charging terminal; and The second battery power terminal can be connected to the second battery and connected to the first and second start-up voltage terminals, and the drive control section passes through the switch circuit and the drive control section after the switch circuit is turned on. The power supply terminal TPS1 is activated by being supplied with the reference voltage of the reference battery, and after the first battery is activated by being supplied with the reference voltage of the reference battery through the switch circuit and the first battery power terminal, the receiver includes the Initial data including the identification information output by the first battery through the communication line is used to confirm that the first battery is properly connected. After confirming that the first battery is properly connected, the first battery is instructed through the communication line. The identification information is switched from the initial identification information to the first identification information which is different from the initial identification information. After instructing to switch to the first identification information, the first identification information including the first battery output through the communication line is received. Switching data including 1 identification information, thereby confirming that the identification information of the first battery is switched to the first The setting of the other information is completed. After confirming that the setting for switching to the first identification information is completed, the second start-up voltage terminal and the second battery power terminal will be used for the second start-up of the second battery. The starting voltage is supplied to the second battery. After the second battery is started by being supplied with the second starting voltage, it receives initial data including identification information output by the second battery through the communication line, thereby confirming the first battery. 2 The battery is normally connected. After confirming that the second battery is properly connected, it will instruct the second battery through the communication line to not identify information from the initial identification information. After the information is switched, after instructing not to switch the initial identification information, it will receive switching data including the initial identification information output by the second battery through the communication line, thereby confirming that the identification information of the second battery is maintained at The setting of the aforementioned initial identification information is completed.

The power control device further includes a first startup voltage terminal connected to the drive control unit, a second startup voltage terminal connected to the charger, and the first battery power terminal connected to the first battery. 1 battery, which is connected to the other end of the switch circuit and the reference charging terminal; and a second battery power terminal, which can be connected to the second battery and connected to the first and second start voltage terminals, and the drive control After the switch circuit is turned on, the reference voltage of the reference battery is supplied and activated through the switch circuit and the power supply terminal for the drive control unit, and the first battery passes through the switch circuit and the first battery power terminal. After being started by being supplied with the reference voltage of the reference battery, it will receive initial data including identification information output by the first battery through the communication line, thereby confirming that the first battery is properly connected, and confirming that the first After the battery is connected normally, it will instruct the first battery to pass the identification information Identification information is switched to the first identification information is different from the initial identification information, after indicating to switch to the first identification information, receives the first battery comprising output through the communication line, including the first identification information After confirming that the setting of switching the first identification information to the first identification information is completed, the first switching voltage terminal and The second battery power terminal supplies a second starting voltage for starting the second battery to the second battery. After the second battery is started by supplying the second starting voltage, the second battery includes the second battery. The initial data including the identification information output by the communication line is used to confirm that the second battery is normally connected. After confirming that the second battery is normally connected, the second battery is instructed to identify the information through the communication line. Switching from the initial identification information to second identification information different from the initial identification information and the first identification information, after instructing to switch to the second identification information, it will receive the output including the second battery through the communication line. Switching data including the second identification information of the above, thereby confirming that the identification information of the second battery is switched to the setting of the second identification information. to make.

The electric power control device is characterized in that the drive control unit supplies the voltages of the first battery and the second battery to a motor to drive the motor after setting the identification information of the first and second batteries. , The circuit connection is controlled so that the first battery and the second battery are connected in series, and the motor is driven by a voltage after the first battery and the second battery are connected in series.

The power control device is characterized in that the drive control unit transmits a signal after the charger is connected to the reference charging terminal. The reference charging terminal is activated by being supplied with the first starting voltage output from the charger. The charger is supplied from the charger to the first battery through the reference charging terminal and the first battery power terminal. After starting with the voltage, it will receive the initial data including the identification information output by the first battery through the communication line to confirm that the first battery is properly connected. After confirming that the first battery is normally connected, it will Through the communication line, the first battery is instructed to switch the identification information from the initial identification information to the first identification information different from the initial identification information. After instructing to switch to the first identification information, it will receive the first 1 The switching data including the first identification information output by the battery through the communication line is used to confirm that the setting of switching the identification information of the first battery to the first identification information is completed, and the switching to the first identification information is confirmed after confirmation After the setting is completed, it will be used for the above-mentioned through the second start voltage terminal and the second battery power terminal. The second starting voltage of the 2 battery start is supplied to the second battery. After the second battery is started by being supplied with the second starting voltage, it will receive initial data including identification information output by the second battery through the communication line. This confirms that the second battery is properly connected. After confirming that the second battery is normally connected, it will instruct the second battery through the communication line to not switch the identification information from the initial identification information, and do not switch when instructed. After the aforementioned initial identification information, The switching data including the initial identification information output by the second battery through the communication line is used to confirm that the setting of maintaining the identification information of the second battery at the initial identification information is completed.

The power control device is characterized in that, after the charger is connected to the reference charging terminal, the drive control unit is activated by supplying the first starting voltage output from the charger through the reference charging terminal, and the charger is activated. After the first battery is activated from the charger through the reference charging terminal TCS and the first battery power terminal, the first start voltage is supplied, and the first battery receives identification information including the first battery output through the communication line. The initial information in this section confirms that the first battery is properly connected. After confirming that the first battery is normally connected, it will instruct the first battery to switch the identification information from the initial identification information to the original through the communication line. After the first identification information of the foregoing initial identification information is instructed to switch to the first identification information, it will receive switching data including the first identification information output by the first battery through the communication line, thereby confirming The setting of switching the identification information of the first battery to the first identification information is completed, and the switching is confirmed. After the setting of the first identification information is completed, the second starting voltage for starting the second battery is supplied to the second battery through the second starting voltage terminal and the second battery power terminal. 2 When the battery is started by being supplied with the second starting voltage, it will receive identification information including the output of the second battery through the communication line. To confirm the normal connection of the second battery. After confirming that the second battery is normally connected, the second battery will be instructed to switch the identification information from the initial identification information to be different from the initial identification information through the communication line. After the initial identification information and the second identification information of the first identification information are instructed to switch to the second identification information, a switch including the second identification information output by the second battery through the communication line is received. Data, thereby confirming that the setting of the identification information of the second battery to the second identification information is completed.

The power control device is characterized in that the drive control unit is configured to charge the first battery and the second battery by the charger after the identification information of the first and second batteries is set, and then The circuit connection is controlled so that the first battery and the second battery are connected in parallel, and the first battery and the second battery are charged in parallel by the charger.

The power control device further includes: a first charging terminal connected to the output of the high potential side of the charger to be applied with a voltage of the high potential side of the charger; and a second charging terminal connected to the charging The output of the low potential side of the charger is applied with the voltage of the low potential side of the charger; the first driving voltage terminal is connected to the first positive battery terminal; the second driving voltage terminal is connected to the second charging terminal; The first rectifier element, the first node of which is connected to the first charging terminal, and the second node of which is connected to the first positive battery terminal, will prevent reverse current flow; The second rectifier element, the first node is connected to the first charging terminal, and the second node is connected to the second positive battery terminal, which prevents the reverse flow of current; the first contactor is connected to the first negative battery terminal and the first 2 between the positive battery terminals are controlled by the aforementioned drive control section; and the second contactor is connected between the first negative battery terminal and the second charging terminal and controlled by the aforementioned drive control section, The drive control unit generates the motor drive voltage from a voltage between the first drive voltage terminal and the second drive voltage terminal, and drives the motor based on the motor drive voltage.

The power control device is characterized in that, when the drive control unit discharges the first battery and the second battery, the first contactor is opened and the second contactor is closed, thereby connecting in series. On the other hand, when the first battery and the second battery are charged, when the first battery and the second battery are charged, the first contactor is closed and the second contactor is opened, thereby connecting the first contactor in parallel. 1 battery and the aforementioned second battery.

In the power control device, the configuration of the second battery is the same as the configuration of the first battery.

The power control device is characterized in that the communication line includes: a first communication line for transmitting the data to the drive control section by the first and second batteries; and a second communication line for transmitting the drive A command from the control unit or the charger is sent to the first and second batteries.

The electric power control device is characterized in that the electric power control device is mounted on an electric two-wheeled vehicle, and the motor is connected to the electric motor. The wheel of the two-wheeled vehicle, the drive control unit controls the rotation of the wheel by controlling the drive of the motor.

In the power control device, the reference battery is a lead battery, and the first and second batteries are lithium batteries.

In the method for controlling a power control device according to an aspect of the present invention, the power control device includes: a reference battery terminal connected to a positive electrode of the reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; A first positive battery terminal and a first negative battery terminal, the first positive battery terminal can be connected to the positive electrode of the first battery, and the first negative battery terminal can be connected to the negative electrode of the aforementioned first battery; the second positive battery terminal and the second negative battery Battery terminal, the second positive battery terminal can be connected to the positive electrode of the second battery, and the second negative battery terminal can be connected to the negative electrode of the second battery; the switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charge. Terminal, first battery power terminal and power control terminal for drive control unit; communication line for communication between the first battery connected to the first positive battery terminal and the first negative battery terminal, and for connection to the foregoing The second positive battery terminal and the second negative battery terminal communicate with the aforementioned second battery; and the drive control unit receives the following data through the aforementioned communication line, That is, the data including the identification information of the first battery connected to the first positive battery terminal and the first negative battery terminal, and the second data including the second positive battery terminal and the second negative battery terminal are included. The battery identification information is used to identify the first and second batteries, to control the electrical connection between the first battery and the second battery, and to control the first battery and the first battery. 2 battery charge and discharge, the power control device The control method is characterized in that in the initial state before the first battery is connected, the identification information of the first battery is set as the initial identification information, and in the initial state before the second battery is connected, the second battery is identified The information is set as the initial identification information, and the drive control unit starts the reference voltage supplied to the reference battery through the switch circuit after the switch circuit is turned on. The first battery is activated and communicates through the communication line to set the identification information of the first battery. After that, the second battery is activated and communicates through the communication line to set the identification information of the second battery. , And set to be different from the identification information of the first battery.

According to one aspect of the present invention, a power control device includes: a reference battery terminal connected to a positive electrode of the reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; a first positive battery terminal and a first negative battery terminal. The first positive battery terminal can be connected to the positive electrode of the first battery, and the first negative battery terminal can be connected to the negative electrode of the first battery; the second positive battery terminal and the second negative battery terminal, and the second positive battery terminal can be connected to the second battery The negative terminal of the second negative battery can be connected to the negative terminal of the second battery; the switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power terminal, and the drive control unit power terminal; communication Wire for communicating the first battery connected to the first positive battery terminal and the first negative battery terminal And for the second battery connected to the second positive battery terminal and the second negative battery terminal to communicate; and the drive control unit, through the communication line, receives the following data, including connection to the first positive battery terminal and the first The data including identification information of the first battery of the negative battery terminal and the identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal are used to identify the first and the second battery terminals. 2 battery identification information to control the electrical connection between the first battery and the second battery, and to control the charge and discharge of the first battery and the second battery.

In the initial state before the first battery is connected, the identification information of the first battery is set as the initial identification information.

In the initial state before the second battery is connected, the identification information of the second battery is set as the initial identification information.

In addition, after the switch circuit is turned on, the drive control unit is activated by the reference voltage supplied to the reference battery through the switch circuit, and after the startup, the first battery is activated and communicates through the communication line to set the first battery. The identification information will then start the second battery and communicate through the communication line to set the identification information of the second battery and set it to be different from the identification information of the first battery.

As such, the present invention enables the next battery to be started by switching the setting of the identification information between the battery and the drive control unit for the initial identification information after the battery is started, so that a plurality of batteries can be made without duplication. The startup was completed.

In particular, by connecting a plurality of identical batteries to one communication line (bus), and sequentially switching IDs when the plurality of batteries are activated, this enables the It is necessary to improve the expandability for identifying the battery (connection determination) when starting a plurality of batteries, and to reduce costs.

As described above, according to the present invention, it is possible to improve the expandability for identifying the batteries when starting a plurality of batteries, and to reduce the cost.

100‧‧‧Power control device

B1‧‧‧The first battery

B2‧‧‧ 2nd battery

BMU1‧‧‧The first management department

BMU2‧‧‧Second Management Department

CA‧‧‧The first contactor

CB‧‧‧The second contactor

CAN‧‧‧ communication line

CAN1‧‧‧1st communication line

CAN2‧‧‧2nd communication line

CH‧‧‧ Charger

DA‧‧‧The first rectifier element

DB‧‧‧Second rectifier element

DR‧‧‧ Buck Regulator

K‧‧‧ reference battery

Load‧‧‧Load

M‧‧‧Motor

PDU‧‧‧Drive Control Department

S1‧‧‧The first trough

S2‧‧‧The second trough

SW‧‧‧Switch circuit

T1‧‧‧1st contactor for management

T2‧‧‧ 2nd contactor for management

T1B‧‧‧The first battery power terminal

T2B‧‧‧Second Battery Power Terminal

T1N‧‧‧The first negative battery terminal

T2N‧‧‧Second negative battery terminal

T1P‧‧‧The first positive battery terminal

T2P‧‧‧Second positive battery terminal

TCP‧‧‧The first charging terminal

TCN‧‧‧ 2nd charging terminal

TCS‧‧‧Reference Charging Terminal

TCOUT‧‧‧ 2nd starting voltage terminal

TDP‧‧‧1st drive voltage terminal

TDN‧‧‧Second driving voltage terminal

TG‧‧‧ Power terminal for drive control unit

TK‧‧‧Reference battery terminal

TPS1‧‧‧ Power terminal for drive control unit

TPS2‧‧‧The first starting voltage terminal

TR‧‧‧Load terminal

X‧‧‧Main switch control section

Y‧‧‧bridge circuit

Z‧‧‧Capacitor

FIG. 1 is a diagram showing an example of a configuration of a power control device 100 according to the embodiment.

FIG. 2 is a diagram for explaining an example of the operation when the first and second batteries of the power control device 100 shown in FIG. 1 are activated.

FIG. 3 is a diagram for explaining another example of the operation when the first and second batteries of the power control device 100 shown in FIG. 1 are activated.

Forms used to implement the invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First Embodiment

FIG. 1 is a diagram showing an example of a configuration of a power control device 100 according to the embodiment. In addition, although FIG. 1 shows the case where two mobile batteries are the smallest unit (the first and second batteries B1 and B2), the case where three or more mobile batteries are connected is also described in the same manner. .

The power control device 100 according to this embodiment includes, for example, as shown in FIG. 1, a reference battery terminal TK, a reference charging terminal TCS, a first positive battery terminal T1P, a first negative battery terminal T1N, a second positive battery terminal T2P, and a second negative Battery terminal T2N, first battery power 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 startup voltage terminal TPS2, second startup voltage terminal TCOUT, and first charging terminal TCP , Second charging terminal TCN, switch circuit SW, main switch control unit X, drive control unit PDU, step-down regulator DR, first rectifier element DA, second rectifier element DB, first contactor CA, second contactor CB.

The power control device 100 is configured to be mounted on, for example, an electric two-wheeled vehicle (vehicle). The motor M is connected to the wheels of the electric motorcycle.

The power control device 100 is configured to be activated by the voltage of a reference battery (lead battery) K. The power control device 100 is configured to generate a motor drive voltage from the voltages of the first and second batteries (Li batteries) B1 and B2, and drive the motor M based on the motor drive voltage. The power control device 100 is configured to control the rotation of the wheels by controlling the driving of the motor M.

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.

In the example shown in FIG. 1, the first charging terminal TCP is configured to be connected to the output of the high potential side of the charger CH and to be applied with the voltage of the high potential side of the charger CH.

In the example of FIG. 1, the second charging terminal TCN is configured to be connected to the output of the low potential side of the charger CH, and to be applied with the voltage of the low potential side of the charger CH.

The reference charging terminal TCS can be connected to the charger CH, and Electrically connected to the first battery power terminal T1B and the drive control unit power terminal TPS1.

In addition, the charger CH may be connected at least when the first and second batteries B1 and B2 are charged, or from the power control device 100 (each terminal TCN) mounted on the electric two-wheeled vehicle while the aforementioned electric two-wheeled vehicle is running or the like. , TCP, TCOUT, TCS).

The first driving voltage terminal TDP is electrically connected to the first positive battery terminal T1P.

The second driving voltage terminal TDN is electrically connected to the second charging terminal TCN.

The power control terminal TG for the drive control unit is electrically connected to the reference charging terminal TCS.

The first starting voltage terminal TPS2 is connected to the drive control unit PDU, and is electrically connected to the second battery power terminal T2B.

The second startup voltage terminal TCOUT can be connected to the charger CH, and is electrically connected to the second battery power terminal T2B.

The first battery power terminal T1B can be connected to the first battery B1, and is connected to the other end of the switching circuit SW and the reference charging terminal TCS.

The second battery power terminal T2B can be connected to the second battery B2, and is connected to the first and second startup 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 (48V) output from the first and second batteries B1 and B2 is set to be higher than the battery voltage (12V) which is the reference voltage output from the reference battery K.

The first positive battery terminal T1P can be connected to the positive electrode of the first battery B1 described above. The first negative battery terminal T1N can be connected to the negative electrode of the first battery B1.

Here, as shown in FIG. 1, for example, the first battery B1 includes a first electric tank (a plurality of lithium ion batteries connected in series) S1 and a first management unit BMU1.

The first electric tank S1 is configured to charge the voltage between the first positive battery terminal T1P and the first negative battery terminal T1N, or to charge between the first positive battery terminal T1P and the first negative battery terminal T1N. Voltage discharge.

The first management unit BMU1 is configured to be activated with a reference voltage supplied to the first battery power terminal T1B, and monitors the state of the first battery slot S1 (that is, the first battery B1) (the first battery slot). The voltage of the electrical slot of S1, the SOC of the first electrical slot S1, the temperature of the first electrical slot S1, the current of the first electrical slot S1, etc.), and through the communication line CAN, the intermittent output including the first electrical slot S1 (also That is, information about the state of the first battery B1), or information such as the above-mentioned identification information.

In the initial state before the first battery B1 is connected, the identification information of the first battery B1 is set as the initial identification information.

In addition, the first battery B1 is configured such that the identification information is reset to the initial identification information after being removed from the power control device 100 (for example, the terminals T1P, T1N, and T1B).

In addition, the first management unit BMU1 includes a first management contactor T1. The first management contactor T1 is for forcibly stopping the first electrical slot S1 in response to the state (failure, etc.) of the first electrical slot S1. Discharge.

In addition, the second positive battery terminal T2P can be connected to the above-mentioned second battery. Positive terminal of cell B2. The second negative battery terminal T2N can be connected to the negative electrode of the second battery B2.

Here, the second battery B2 includes a second electric tank (a plurality of lithium ion batteries connected in series) S2 and a second management unit BMU2.

The second electric tank S2 is configured to charge the voltage between the second positive battery terminal T2P and the second negative battery terminal T2N, or to charge between the second positive battery terminal T2P and the second negative battery terminal T2N. Voltage discharge.

In addition, the second management unit BMU2 is configured to be activated by the first or second starting voltage supplied to the second battery power supply terminal T2B, and monitors the state of the second battery slot S2 (that is, the second battery B2). (The voltage of the second electrical slot S2, the SOC of the second electrical slot S2, the temperature of the second electrical slot S2, the current of the second electrical slot S2, etc.), and output the same voltage as the second electrical slot S2 (that is, the first 2 battery B2).

In the initial state before the second battery B2 is connected, the identification information of the second battery B2 is set as the initial identification information in the same manner as the identification information of the first battery B1.

The second management unit MBU2 is provided with a second management contactor T2. The second management contactor T2 is used to forcibly stop the second electrical slot S2 in response to the state (failure, etc.) of the second electrical slot S2. Discharge.

The second battery B2 is configured to be reset to the initial identification information when the second battery B2 is removed from the power control device 100 (for example, the terminals T2P, T2N, and T2B).

The configuration of the second battery B2 is the same as the configuration of the first battery B1 described above.

One end of the switching circuit SW is connected to the reference battery terminal TK, and the other end is electrically connected to the reference charging terminal TCS, the first battery power terminal T1B, and the drive control unit power 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 by turning it on, for example.

On the other hand, the switch circuit SW is configured to shut off the supply of the reference voltage of the reference battery K to the drive control unit PDU and the first battery B1.

In addition, the main switch control unit X is configured to be supplied with power from the positive electrode of the reference battery K and to control the switch circuit SW in accordance with a user's operation (behavior) and the like.

The communication line CAN is used for communication between the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N and the drive control unit PDU (or charger CH), and for connection to the second positive battery. The second battery B2 of the battery terminal T2P and the second negative battery terminal T2N communicates with the drive control unit PDU (or the charger CH).

The communication line CAN includes a first communication line CAN1 for sending data to the drive control unit PDU for the first and second batteries B1 and B2, and a second communication line CAN2 for sending the drive control unit PDU or charger. The command from CH is sent to the first and second batteries B1 and B2.

The step-down regulator DR is configured to step down the voltage between the first driving voltage terminal TDP and the second driving voltage terminal TDN and output the voltage.

The step-down regulator DR is, for example, a DC-DC converter, and steps down the voltage between the first driving voltage terminal TDP and the second driving voltage terminal TDN and outputs the voltage to a load terminal TR connected to a load Load. The reference battery K is configured to be charged by a voltage output from the step-down regulator DR.

The load Load includes, for example, any of the above-mentioned electric motorcycles' headlights, blinkers, indicators, or other electronic components required for travel of other electric motorcycles.

The reference battery K is configured to be charged by a voltage output from the step-down regulator DR.

The first rectifier element DA is a first diode. The first node (anode) is connected to the first charging terminal TCP, and the second node (cathode) is connected to the first positive battery terminal T1P, which prevents a reverse current flow.

The second rectifier element DB is a second diode. The first node (anode) is connected to the first charging terminal TCP, and the second node (cathode) is connected to the second positive battery terminal T2P. This prevents a reverse current flow.

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 configured to be controlled to be ON / OFF by a 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 configured to be turned on / off by a drive control unit PDU.

The drive control unit PDU is configured to generate a motor drive current from the voltages of the first battery B1 and the second battery B2, as shown in FIG. 1, for example. And driving the motor by the motor driving voltage. The drive control unit PDU is configured to control the rotation of the wheel by controlling the driving of the motor M.

The drive control unit PDU includes, for example, as shown in FIG. 1, a capacitor Z connected between a first drive voltage terminal TDP and a second drive voltage terminal TDN, and a bridge circuit Y to be supplied to the first drive voltage terminal TDP and The voltage between the second driving voltage terminals TDN outputs a motor driving voltage to the motor M to drive the motor M.

For example, the drive control unit PDU is configured to generate a motor drive voltage from the voltage between the first drive voltage terminal TDP and the second drive voltage terminal TDN by the bridge circuit Y, and drive the motor by the motor drive voltage. .

The drive control unit PDU is configured to receive, through the communication line CAN, data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N, and Data including identification information of the second battery B2 connected to the second positive battery terminal T1P and the second negative battery terminal T2N.

Accordingly, the drive control unit PDU is configured to recognize the identification information of the first and second batteries B1 and B2 to control the electrical circuit connection between the first battery B1 and the second battery B2 (the first and second contactors CA, CB), and control the charge and discharge of the first battery B1 and the second battery B2.

For example, the drive control unit PDU is configured to connect the first contactor CA and close the second contactor CB in series when the first battery B1 and the second battery B2 are discharged (while the vehicle is running), thereby connecting the first contactor CA in series. 1 battery B1 With the second battery B2.

On the other hand, the drive control unit PDU is configured to close the first contactor CA and open the second contactor CB when charging the first battery B1 and the second battery B2 (while charging by the charger CH). Thereby, the first battery B1 and the second battery B2 are connected in parallel.

In addition, the drive control unit PDU is configured to be activated by being supplied with the reference voltage of the reference battery K through the switch circuit SW after the switch circuit SW is turned on.

In addition, the drive control unit PDU is configured to start the first battery B1 after the startup, and communicate through the communication line CAN to set the identification information of the first battery B1. After that, the second battery B2 is started, and Communication is performed through the communication line CAN to set the identification information of the second battery B2, and is set to be different from the identification information of the first battery B1.

The drive control unit PDU is configured to obtain a plurality of information from the management units BMU1 and BMU2 through the communication line CAN. In particular, the drive control unit PDU is configured to determine whether the state of the first battery B1 is normal or abnormal (whether there is a failure) based on battery information related to the state of the first battery B1 and the second battery B2 output by the management units BMU1 and BMU2. ).

Here, the drive control unit PDU is configured to stop all the transistors of the bridge circuit Y or to short-circuit the high-side or low-side transistors when the driving function of the motor M is stopped.

The drive control unit PDU is configured to communicate with the above-mentioned charger CH through a communication line CAN. The drive control unit PDU is configured such that after the charger CH is connected to the reference charging terminal TCS, It is started by being supplied with the first starting voltage output from the charger CH through the reference charging terminal TCS and the power control terminal TG for the drive control unit.

In addition, the charger CH is also configured to receive, through the communication line CAN, data including identification information of the first battery B1 connected to the first positive battery terminal T1P and the first negative battery terminal T1N, And data including identification information of the second battery B2 connected to the second positive battery terminal T1P and the second negative battery terminal T2N.

In addition, the charger CH can start the first battery B1 during charging, and communicate through the communication line CAN to set the identification information of the first battery B1, and then start the second battery B2 and perform the communication through the communication line CAN. Communication to set the identification information of the second battery B2 and set it to be different from the identification information of the first battery B1.

Here, an operation example of the control method of the power control device 100 having the above configuration will be described.

First, an example in which the first and second batteries B1 and B2 are activated when the electric motorcycle is started will be described. FIG. 2 is a diagram for explaining an example of operations when the first and second batteries B1 and B2 of the power control device 100 shown in FIG. 1 are activated.

For example, as shown in FIG. 2, after the drive control unit PDU is turned on by the control of the main switch control unit X, the drive control unit PDU is supplied with the reference voltage of the reference battery K through the switch circuit SW and the power supply terminal TPS1 for the drive control unit. START (F1).

The drive control unit PDU is supplied to the reference battery K through the first battery B1 through the switch circuit SW and the first battery power terminal T1B. After the reference voltage is activated, initial data including the identification information of the first battery B1 output through the communication line CAN is received, thereby confirming that the first battery B1 is normally connected (F2).

In addition, after confirming that the first battery B1 is normally connected, the drive control unit PDU instructs the first battery B1 to switch the identification information from the above-mentioned initial identification information to the first identification different from the initial identification information through the communication line CAN. Information (F3).

In addition, after the drive control unit PDU instructs to switch to the first identification information, it receives switching data including the first identification information of the first battery B1 output through the communication line CAN, thereby confirming the identification of the first battery B1. Setting of the information switching to the first identification information is completed.

After confirming that the setting of the switch to the first identification information is completed, the drive control unit PDU will use the first startup voltage terminal TPS2 and the second battery power terminal T2B to perform the second startup for the second battery B2. The voltage is supplied to the second battery B2 (F4).

In addition, after the PDU of the drive control unit is started after the second battery B2 is supplied with the second starting voltage, it receives initial data including identification information of the second battery B2 output through the communication line CAN, thereby confirming that the second battery B2 has Connect normally (F5).

In addition, after confirming that the second battery B2 is normally connected, the drive control unit PDU instructs the second battery B2 not to switch the identification information from the initial identification information through the communication line CAN (F6).

In addition, after the drive control unit PDU instructs not to switch this initial identification information, it will receive the second battery B2 including the second battery B2 through the communication line CAN. It is confirmed that the setting of maintaining the identification information of the second battery B2 to the initial identification information is completed by switching data including the initial identification information.

With the above operation of the drive control unit PDU, the identification information can be set to be different when starting the electric two-wheeled vehicle, and the first and second batteries B1 and B2 can be activated.

In addition, in the operation of setting the above identification information, the drive control unit PDU can also be used: after confirming that the second battery B2 is normally connected, it will instruct the second battery B2 to switch the identification information from the initial identification information through the communication line. The second identification information (F6) is different from the initial identification information and the first identification information.

At this time, after the drive control unit PDU instructs to switch to the second identification information, it will receive the switching data including the second identification information of the second battery B2 output through the communication line CAN, thereby confirming the identification of the second battery B2. The setting for switching the information to the second identification information is completed.

In addition, the drive control unit PDU controls the circuit when the voltage of the first battery B1 and the second battery B2 is supplied to the motor M after the identification information of the first and second batteries B1 and B2 is set as described above. The first battery B1 and the second battery B2 are connected in series (the first and second contactors CA and CB), and the motor M is driven by the voltage after the first battery B1 and the second battery B2 are connected in series. Driven by this motor M, the wheels will rotate and the electric two-wheeled vehicle will walk.

Next, an example in which the first and second batteries B1 and B2 are activated when charging by the charger CH is started will be described. FIG. 3 illustrates the first and second batteries B1 and B2 of the power control device 100 shown in FIG. 1. A diagram of another example of the operation at the time of startup. In addition, in the example shown in FIG. 3, the switching circuit SW is turned off.

For example, as shown in FIG. 3, after the charger control unit PDU is connected to the reference charging terminal TCS, the drive control unit PDU is supplied with the first starting voltage output from the charger CH through the reference charging terminal TCS and the power control terminal TG for the drive control unit. Start (F1a).

In addition, after the first battery B1 is started from the charger CH through the reference charging terminal TCS and the first battery power terminal T1B, the first battery B1 is supplied with the first start-up voltage (F1a) and receives the first battery B1 through the communication line The initial data including the identification information output by the CAN confirms that the first battery B1 is normally connected (F2a).

After confirming that the first battery B1 is normally connected, the charger CH instructs the first battery B1 to switch the identification information from the initial identification information to the first identification information different from the initial identification information ( F3a).

In addition, after the charger CH instructs to switch to the first identification information, it will receive the switching data including the first identification information of the first battery B1 output through the communication line CAN, thereby confirming the identification information switching of the first battery B1. The setting of the first identification information is completed.

After confirming that the setting of switching to the first identification information is completed, the charger CH will use the second starting voltage terminal TCOUT and the second battery power terminal T2B to use the second starting voltage for starting the second battery B2. It is supplied to the second battery B2 (F4a).

In addition, the charger CH is supplied to the second battery B2 in the second battery B2. After starting with the dynamic voltage, it will receive the initial data including the identification information of the second battery B2 output through the communication line CAN, thereby confirming that the second battery B2 is normally connected (F5a).

In addition, after the charger CH confirms that the second battery B2 is normally connected, it will instruct the second battery B2 not to switch the identification information from the initial identification information through the communication line CAN (F6a).

In addition, the charger CH, after instructing not to switch the initial identification information, will receive switching data including the initial identification information of the second battery B2 output through the communication line CAN, thereby confirming that the identification information of the second battery B2 is maintained at the initial stage. The setting of the identification information is completed.

With the above operation of the drive control unit PDU and the charger CH, the first and second batteries B1 and B2 can be activated by setting the identification information to be different when charging is started by the charger CH.

In addition, in the operation of setting the above identification information, the charger CH can also be used: after confirming that the second battery B2 is normally connected, it will instruct the second battery B2 to identify the identification information from the initial identification information through the communication line CAN. Switch to the second identification information (F6a) which is different from the initial identification information and the first identification information.

At this time, after the charger CH instructs to switch to the second identification information, it will receive the switching data including the second identification information output by the second battery B2 through the communication line, thereby confirming the identification information of the second battery B2. The setting for switching to the second identification information is completed.

In addition, after setting the identification information of the first and second batteries B1 and B2, the drive control unit PDU uses the charger CH to charge the first battery. When the battery B1 and the second battery B2 are charged, the circuit connection (the first and second contactors CA and CB) is controlled so that the first battery B1 and the second battery B2 are connected in parallel.

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.

As described above, one aspect of the power control device of the present invention includes: a reference battery terminal connected to a positive electrode of the reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; a first positive battery terminal and a first Negative battery terminal, the first positive battery terminal can be connected to the positive electrode of the first battery, the first negative battery terminal can be connected to the negative electrode of the first battery, the second positive battery terminal and the second negative battery terminal, and the second positive battery terminal The positive terminal of the second battery can be connected. The negative terminal of the second negative battery can be connected to the negative terminal of the second battery. The switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power terminal, and the drive control unit. Power terminal; communication line for communication between the first battery connected to the first positive battery terminal and the first negative battery terminal, and for the second battery connected to the second positive battery terminal and the second negative battery terminal Communication; and the drive control unit, through the communication line, to receive data including data including identification information of the first battery connected to the first positive battery terminal and the first negative battery terminal, and Data including identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal, thereby identifying the identification information of the first and second batteries to control the power of the first battery and the second battery The circuit is connected to the battery and controls the charge and discharge of the first battery and the second battery.

In the initial state before the first battery is connected, the first The battery identification information is set as the initial identification information.

In the initial state before the second battery is connected, the identification information of the second battery is set as the initial identification information.

In addition, after the switch circuit is turned on, the drive control unit is activated by the reference voltage supplied to the reference battery through the switch circuit, and after the startup, the first battery is activated and communicates through the communication line to set the first battery. The identification information will then start the second battery and communicate through the communication line to set the identification information of the second battery and set it to be different from the identification information of the first battery.

As such, the present invention enables the next battery to be started by switching the setting of the identification information between the battery and the drive control unit for the initial identification information after the battery is started, so that a plurality of batteries can be made without duplication. The startup was completed.

In particular, a plurality of identical batteries are connected to one communication line (bus), and IDs are sequentially switched when the plurality of batteries are activated, so that the batteries can be used to identify the batteries when the plurality of batteries are activated (connection determination). ) To improve the scalability and pursue cost reduction.

As described above, according to the power control device of the embodiment, when the plurality of batteries are activated, the expandability for identifying the batteries can be improved, and the cost can be reduced.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. Such The application form or its modification is included in the scope or gist of the invention, and is also included in the invention described in the scope of the patent application and its equivalent scope.

Claims (18)

A power control device, comprising: a reference battery terminal connected to a positive electrode of a reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; a first positive battery terminal and a first negative battery terminal; 1 positive battery terminal can be connected to the positive electrode of the first battery, the first negative battery terminal can be connected to the negative electrode of the aforementioned first battery; the second positive battery terminal and the second negative battery terminal, and the second positive battery terminal can be connected to the second battery The second negative battery terminal can be connected to the negative electrode of the second battery; the switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power terminal, and the power source for the drive control unit. Terminal; communication line for communication between the first battery connected to the first positive battery terminal and the first negative battery terminal, and for connection to the second positive battery terminal and the second negative battery terminal The second battery performs communication; and the drive control unit receives the following data through the communication line, that is, including the connection to the first positive battery terminal and the first negative power The data including the identification information of the first battery of the terminal and the data including the identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal, thereby identifying the first and The identification information of the second battery controls the electrical circuit connection between the first battery and the second battery, and controls the charge and discharge of the first battery and the second battery. In the initial state, the identification information of the first battery is set as the initial identification information. In the initial state before the second battery is connected, the identification information of the second battery is set as the initial identification information, and the drive control unit is After the switch circuit is turned on, the reference voltage supplied to the reference battery is started through the switch circuit, and after the start, the first battery is started, and communication is performed through the communication line to set the first battery. The identification information of the second battery is then activated, and the communication is performed through the communication line to set the identification information of the second battery. It is set to be different from the identification information of the first cell. In the power control device according to claim 1, wherein the drive control unit generates a motor drive voltage from the voltages of the first battery and the second battery, and drives the motor by the motor drive voltage. For example, the electric power control device of claim 2 further includes: a first starting voltage terminal connected to the drive control unit; a second starting voltage terminal that can be connected to the charger; the first battery power terminal can be connected to the first 1 battery, which is connected to the other end of the switch circuit and the reference charging terminal; and a second battery power terminal, which can be connected to the second battery and connected to the first and second start voltage terminals, and the drive control After the switch circuit is turned on, the reference voltage of the reference battery is supplied and activated through the switch circuit and the power supply terminal for the drive control unit, and the first battery passes through the switch circuit and the first battery power terminal. After being started by being supplied with the reference voltage of the reference battery, it will receive initial data including identification information output by the first battery through the communication line, thereby confirming that the first battery is properly connected, and confirming that the first After the battery is properly connected, it will instruct the first battery to identify the identification information from the initial stage through the communication line. Information is switched to the first identification information which is different from the aforementioned initial identification information, and after instructing to switch to the first identification information, it will receive a switch including the first identification information output by the first battery through the communication line Data to confirm that the setting of the identification information of the first battery to the first identification information is completed. After confirming that the setting of the switching to the first identification information is completed, the first starting voltage terminal and the second The battery power terminal supplies a second starting voltage for starting the second battery to the second battery. After the second battery is started by being supplied with the second starting voltage, it receives the second battery including the second battery through the foregoing. Initial data including identification information output by the communication line, thereby confirming that the second battery is normally connected. After confirming that the second battery is normally connected, it will instruct the second battery through the communication line not to remove the identification information from the second battery. The initial identification information is switched, and after the initial identification information is instructed not to be switched, it will receive the second battery including the second battery through the communication line. Initial information including the identification information of the handover, to thereby confirm that the identifying information of the second cell is maintained in the initial setting has completed the identification information. For example, the electric power control device of claim 2 further includes: a first starting voltage terminal connected to the drive control unit; a second starting voltage terminal that can be connected to the charger; the first battery power terminal can be connected to the first 1 battery, which is connected to the other end of the switch circuit and the reference charging terminal; and a second battery power terminal, which can be connected to the second battery and connected to the first and second start voltage terminals, and the drive control After the switch circuit is turned on, the reference voltage of the reference battery is supplied and activated through the switch circuit and the power supply terminal for the drive control unit, and the first battery passes through the switch circuit and the first battery power terminal. After being started by being supplied with the reference voltage of the reference battery, it will receive initial data including identification information output by the first battery through the communication line, thereby confirming that the first battery is properly connected, and confirming that the first After the battery is properly connected, it will instruct the first battery to identify the identification information from the initial stage through the communication line. Information is switched to the first identification information which is different from the aforementioned initial identification information, and after instructing to switch to the first identification information, it will receive a switch including the first identification information output by the first battery through the communication line Data to confirm that the setting of the identification information of the first battery to the first identification information is completed. After confirming that the setting of the switching to the first identification information is completed, the first starting voltage terminal and the second The battery power terminal supplies a second starting voltage for starting the second battery to the second battery. After the second battery is started by being supplied with the second starting voltage, it receives the second battery including the second battery through the foregoing. The initial data including the identification information output by the communication line, thereby confirming that the second battery is normally connected. After confirming that the second battery is normally connected, it will instruct the second battery to pass the identification information from the foregoing through the communication line. The initial identification information is switched to the second identification information which is different from the aforementioned first identification information and the aforementioned first identification information, and it is instructed to switch to the aforementioned second identification information. Switching the second identification information, including the information after the information, comprising receive the second battery output through the communication line, whereby the second confirmation information is switched to the cell identification information identifying the second set has completed. The power control device according to claim 3, wherein the drive control unit supplies the voltages of the first battery and the second battery to the motor to drive the motor after the identification information of the first and second batteries is set. , The circuit connection is controlled so that the first battery and the second battery are connected in series, and the motor is driven by a voltage after the first battery and the second battery are connected in series. The power control device according to claim 4, wherein the drive control unit supplies the voltages of the first battery and the second battery to the motor to drive the motor after the identification information of the first and second batteries is set. , The circuit connection is controlled so that the first battery and the second battery are connected in series, and the motor is driven by a voltage after the first battery and the second battery are connected in series. For example, the power control device of claim 5, wherein after the charger is connected to the reference charging terminal, the drive control unit is started by supplying the first starting voltage output by the charger through the reference charging terminal, and the charger is started. After the first battery is activated from the charger through the reference charging terminal and the first battery power terminal, the first starting voltage is supplied, and the first battery receives identification information including the first battery output through the communication line. To confirm the first battery is normally connected. After confirming that the first battery is normally connected, the first battery will be instructed to switch the identification information from the initial identification information to be different from the initial identification information through the communication line. After the first identification information of the initial identification information is instructed to switch to the first identification information, it will receive switching data including the first identification information output by the first battery through the communication line to confirm the foregoing. The identification information of the first battery is switched to the setting of the first identification information. 1 After the setting of the identification information is completed, the second starting voltage for starting the second battery is supplied to the second battery and the second battery through the second starting voltage terminal and the second battery power terminal. After being started by being supplied with the second starting voltage, it will receive initial data including the identification information output by the second battery through the communication line, thereby confirming that the second battery is properly connected, and confirming that the second battery is After the normal connection, it will instruct the second battery through the aforementioned communication line not to switch the identification information from the initial identification information. After instructing not to switch the initial identification information, it will receive the information including the output of the second battery through the communication line. It is confirmed that the setting of maintaining the identification information of the second battery to the initial identification information is completed by switching data including the initial identification information. For example, the power control device of claim 6, wherein after the charger is connected to the reference charging terminal, the drive control unit is started by supplying the first starting voltage output by the charger through the reference charging terminal, and the charger is started. After the first battery is activated from the charger through the reference charging terminal and the first battery power terminal, the first starting voltage is supplied, and the first battery receives identification information including the first battery output through the communication line. To confirm the first battery is normally connected. After confirming that the first battery is normally connected, the first battery will be instructed to switch the identification information from the initial identification information to be different from the initial identification information through the communication line. After the first identification information of the initial identification information is instructed to switch to the first identification information, it will receive switching data including the first identification information output by the first battery through the communication line to confirm the foregoing. The identification information of the first battery is switched to the setting of the first identification information. 1 After the setting of the identification information is completed, the second starting voltage for starting the second battery is supplied to the second battery and the second battery through the second starting voltage terminal and the second battery power terminal. After being started by being supplied with the second starting voltage, it will receive initial data including the identification information output by the second battery through the communication line, thereby confirming that the second battery is properly connected, and confirming that the second battery is After the normal connection, it will instruct the second battery through the aforementioned communication line not to switch the identification information from the initial identification information. After instructing not to switch the initial identification information, it will receive the information including the output of the second battery through the communication line. It is confirmed that the setting of maintaining the identification information of the second battery to the initial identification information is completed by switching data including the initial identification information. For example, the power control device of claim 5, wherein after the charger is connected to the reference charging terminal, the drive control unit is started by supplying the first starting voltage output by the charger through the reference charging terminal, and the charger is started. After the first battery is activated from the charger through the reference charging terminal and the first battery power terminal, the first starting voltage is supplied, and the first battery receives identification information including the first battery output through the communication line. To confirm the first battery is normally connected. After confirming that the first battery is normally connected, the first battery will be instructed to switch the identification information from the initial identification information to be different from the initial identification information through the communication line. After the first identification information of the initial identification information is instructed to switch to the first identification information, it will receive switching data including the first identification information output by the first battery through the communication line to confirm the foregoing. The identification information of the first battery is switched to the setting of the first identification information. 1 After the setting of the identification information is completed, the second starting voltage for starting the second battery is supplied to the second battery and the second battery through the second starting voltage terminal and the second battery power terminal. After being started by being supplied with the second starting voltage, it will receive initial data including the identification information output by the second battery through the communication line, thereby confirming that the second battery is properly connected, and confirming that the second battery is After the normal connection, it will instruct the second battery to switch the identification information from the initial identification information to the second identification information different from the initial identification information and the first identification information through the communication line, and instruct to switch to the foregoing. After the second identification information, switching data including the second identification information output by the second battery through the communication line is received, thereby confirming that the identification information of the second battery is switched to the setting of the second identification information. carry out. For example, the power control device of claim 6, wherein after the charger is connected to the reference charging terminal, the drive control unit is started by supplying the first starting voltage output by the charger through the reference charging terminal, and the charger is started. After the first battery is activated from the charger through the reference charging terminal and the first battery power terminal, the first starting voltage is supplied, and the first battery receives identification information including the first battery output through the communication line. To confirm the first battery is normally connected. After confirming that the first battery is normally connected, the first battery will be instructed to switch the identification information from the initial identification information to be different from the initial identification information through the communication line. After the first identification information of the initial identification information is instructed to switch to the first identification information, it will receive switching data including the first identification information output by the first battery through the communication line to confirm the foregoing. The identification information of the first battery is switched to the setting of the first identification information. 1 After the setting of the identification information is completed, the second starting voltage for starting the second battery is supplied to the second battery and the second battery through the second starting voltage terminal and the second battery power terminal. After being started by being supplied with the second starting voltage, it will receive initial data including the identification information output by the second battery through the communication line, thereby confirming that the second battery is properly connected, and confirming that the second battery is After the normal connection, it will instruct the second battery to switch the identification information from the initial identification information to the second identification information different from the initial identification information and the first identification information through the communication line, and instruct to switch to the foregoing. After the second identification information, switching data including the second identification information output by the second battery through the communication line is received, thereby confirming that the identification information of the second battery is switched to the setting of the second identification information. carry out. The power control device according to any one of claims 7 to 10, wherein the drive control unit sets the first battery and the first battery by the charger after the identification information of the first and second batteries is set. When the two batteries are charged, the circuit connection is controlled so that the first battery and the second battery are connected in parallel, and the first battery and the second battery are charged in parallel by the charger. For example, the power control device of claim 11 further includes: a first charging terminal connected to the output of the high-potential side of the charger, to which the voltage of the high-potential side of the charger is applied; and a second charging terminal connected to the charging The output of the low potential side of the charger is applied with the voltage of the low potential side of the charger; the first driving voltage terminal is connected to the first positive battery terminal; the second driving voltage terminal is connected to the second charging terminal; The first rectifying element, the first node is connected to the first charging terminal, and the second node is connected to the first positive battery terminal, which prevents the reverse flow of current; the second rectifying element, the first node is connected to the first charging terminal, The second node is connected to the second positive battery terminal to prevent a reverse current; the first contactor is connected between the first negative battery terminal and the second positive battery terminal, and is controlled by the drive control unit; And the second contactor are connected between the first negative battery terminal and the second charging terminal, and are controlled by the drive control section, and the drive control section is controlled from the first drive voltage terminal The voltage between the carrier and the second driving voltage terminal generates the motor driving voltage, and the motor is driven by the motor driving voltage. For example, the power control device according to claim 12, wherein the drive control unit opens the first contactor and closes the second contactor when discharging the first battery and the second battery, thereby connecting in series. On the other hand, when the first battery and the second battery are charged, when the first battery and the second battery are charged, the first contactor is closed and the second contactor is opened, thereby connecting the first contactor in parallel. 1 battery and the aforementioned second battery. The power control device according to claim 11, wherein the configuration of the second battery is the same as the configuration of the first battery. For example, the power control device of claim 1, wherein the aforementioned communication line is provided with: a first communication line for transmitting the data to the aforementioned drive control section by the aforementioned first and second batteries; and a second communication line for transmitting the aforementioned drive A command from the control unit or the charger is sent to the first and second batteries. The electric power control device according to claim 11, wherein the electric 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 drive of the motor. The power control device according to claim 14, wherein the reference battery is a lead battery, and the first and second batteries are lithium batteries. A control method for a power control device. The power control device includes a reference battery terminal connected to a positive electrode of the reference battery to be supplied with a reference voltage; a reference charging terminal to which a charger can be connected; a first positive battery terminal and a first negative battery terminal. The first positive battery terminal can be connected to the positive electrode of the first battery, the first negative battery terminal can be connected to the negative electrode of the aforementioned first battery; the second positive battery terminal and the second negative battery terminal, and the second positive battery terminal can be connected The positive electrode of the second battery, the second negative battery terminal can be connected to the negative electrode of the second battery; the switch circuit has one end connected to the reference battery terminal and the other end connected to the reference charging terminal, the first battery power terminal, and the drive control External power terminals; communication cables for communication between the first battery connected to the first positive battery terminal and the first negative battery terminal, and for connection to the second positive battery terminal and the second negative battery The aforementioned second battery of the terminal communicates; and the drive control unit receives the following data through the aforementioned communication line, that is, including the connection to the aforementioned first positive battery The data including the identification information of the first battery and the first negative battery terminal and the identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal are borrowed. This identification information identifying the first and second batteries controls the electrical circuit connection between the first battery and the second battery, and controls the charging and discharging of the first battery and the second battery. The power control device The control method is characterized in that in the initial state before the first battery is connected, the identification information of the first battery is set as the initial identification information, and in the initial state before the second battery is connected, the second battery is The identification information is set as the aforementioned initial identification information, and the drive control unit, after the switch circuit is turned on, is started by being supplied with the reference voltage of the reference battery through the switch circuit, and after the start, it causes The first battery is activated, and communication is performed through the communication line to set the identification information of the first battery. After that, the second battery is activated, and Communication is performed through the communication line to set the identification information of the second battery, and is set to be different from the identification information of the first battery.