WO2019049339A1

WO2019049339A1 - Power control device and control method for power control device

Info

Publication number: WO2019049339A1
Application number: PCT/JP2017/032577
Authority: WO
Inventors: 一由希目黒; 雄大井ノ口
Original assignee: 新電元工業株式会社
Priority date: 2017-09-08
Filing date: 2017-09-08
Publication date: 2019-03-14
Also published as: TWI678861B; JPWO2019049339A1; TW201914160A; JP6866490B2

Abstract

When a switch circuit is turned on, a driving control unit of this power control device starts up by receiving supply of reference voltage of a reference battery via the switch circuit. After the startup, the driving control unit starts up a first battery, and sets identification information for the first battery through communication over a communication line, and then, starts up a second battery, and sets identification information for the second battery through communication over the communication line such that the identification information for the second battery differs from the identification information for the first battery.

Description

Power control device and control method of power control device

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

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

Here, when 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 (for example, see Patent Documents 1 and 2).

As described above, when activating a plurality of batteries, extensibility for recognizing (connection determination) these batteries is required, and it is required to cope with it at relatively low cost.

JP, 2014-155377, A JP, 2015-133766, A

Therefore, an object of the present invention is to provide a power control apparatus capable of achieving cost reduction while improving the extensibility for recognizing a battery when starting up a plurality of batteries.

A power control apparatus according to an embodiment of the present invention is:
A reference battery terminal connected to a positive electrode of a reference battery and supplied with a reference voltage;
Reference charging terminal to which the charger can be connected,
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 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 connected to the first positive battery terminal and the first negative battery terminal communicates, and the second battery connected to the second positive battery terminal and the second negative battery terminal A communication line for the two batteries to communicate,
Data including identification information of the first battery connected to the first positive battery terminal and the first negative battery terminal via the communication line, the second positive battery terminal and the second negative The identification information of the first and second batteries is recognized by receiving data including the identification information of the second battery connected to the battery terminal, and the first battery and the second battery are identified. A drive control unit that controls the electrical circuit connection of the battery and controls charging and discharging of the first battery and the second battery,
In an initial state before connection of the first battery, identification information of the first battery is set to initial identification information,
In an initial state before connection of the second battery, identification information of the second battery is set in the initial identification information,
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit to start up.
After activation, the first battery is activated to communicate via the communication line to set identification information of the first battery, and then the second battery is activated to communicate via the communication line The identification information of the second battery may be set to be different from the identification information of the first battery.

In the power controller,
The drive control unit
A motor drive voltage is generated from voltages of the first battery and the second battery, and a motor is driven by the motor drive voltage.

In the power controller,
A first start voltage terminal connected to the drive control unit;
A second starting voltage terminal to which the charger is connectable;
The first battery power supply terminal connectable to the first battery and connected to the other end of the switch circuit and a reference charging terminal;
And a second battery power supply terminal connectable to the second battery and connected to the first and second start voltage terminals.
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit and the drive control unit power supply terminal TPS1 to start up.
After the first battery is supplied with the reference voltage of the reference battery via the switch circuit and the first battery power supply terminal and started up, the first battery outputs the signal via the communication line Confirming that the first battery is properly connected by receiving initial data including identification information;
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting for switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the first activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, the second battery is instructed via the communication line not to switch identification information from the initial identification information,
After instructing to not switch the initial identification information, the second battery receives the switching data including the initial identification information output through the communication line, thereby identifying the second battery identification information. It is characterized in that it is confirmed that the setting to maintain the initial identification information is completed.

In the power controller,
A first start voltage terminal connected to the drive control unit;
A second starting voltage terminal to which the charger is connectable;
The first battery power supply terminal connectable to the first battery and connected to the other end of the switch circuit and a reference charging terminal;
And a second battery power supply terminal connectable to the second battery and connected to the first and second start voltage terminals.
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied through the switch circuit and the power supply terminal for the drive control unit to start up.
After the first battery is supplied with the reference voltage of the reference battery via the switch circuit and the first battery power supply terminal and started up, the first battery outputs the signal via the communication line Confirming that the first battery is properly connected by receiving initial data including identification information;
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting for switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the first activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, identification information is transmitted to the second battery from the initial identification information through the communication line. The initial identification information and the first identification information To switch to a second identification information different from
After instructing to switch to the second identification information, the second battery receives switching data including the second identification information output through the communication line, whereby the second battery It is characterized in that it is confirmed that the setting of switching of the identification information to the second identification information is completed.

In the power controller,
When the drive control unit supplies a voltage 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 such that the first battery and the second battery are connected in series, and the voltage of the first battery and the second battery are connected in series to the motor. It is characterized by driving.

In the power controller,
The drive control unit
When the charger is connected to the reference charging terminal, a first activation voltage output from the charger is supplied via the reference charging terminal and activated.
The charger is
After the first battery is supplied with the first activation voltage from the charger via the reference charging terminal and the first battery power supply terminal and started up, the first battery transmits the communication line. Confirming that the first battery is normally connected by receiving initial data including identification information output via:
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting of switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the second activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, the second battery is instructed via the communication line not to switch identification information from the initial identification information,
After instructing to not switch the initial identification information, the second battery receives the switching data including the initial identification information output through the communication line, thereby identifying the second battery identification information. It is characterized in that it is confirmed that the setting to maintain the initial identification information is completed.

In the power controller,
The drive control unit
When the charger is connected to the reference charging terminal, a first activation voltage output from the charger is supplied via the reference charging terminal and activated.
The charger is
After the first battery is supplied with the first activation voltage from the charger via the reference charging terminal TCS and the first battery power supply terminal and started up, the first battery is connected to the communication line By confirming that the first battery is normally connected by receiving initial data including identification information output via
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting of switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the second activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, identification information is transmitted to the second battery from the initial identification information through the communication line. The initial identification information and the first identification information To switch to a second identification information different from
After instructing to switch to the second identification information, the second battery receives switching data including the second identification information output through the communication line, whereby the second battery It is characterized in that it is confirmed that the setting of switching of the identification information to the second identification information is completed.

In the power controller,
In the case where the first battery and the second battery are charged by the charger after the setting of the identification information of the first and second batteries, the drive control unit is configured to set the first battery and the first battery and the second battery. The circuit connection is controlled such that the second battery and the second battery are connected in parallel, and the first battery and the second battery are charged in parallel by the charger.

In the power controller,
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 and controlled by the drive control unit;
And a second contactor connected between the first negative battery terminal and the second charging terminal and controlled by the drive control unit.
The drive control unit
The 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.

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.

In the power controller,
The configuration of the second battery is characterized by being the same as the configuration of the first battery.

In the power controller,
The communication line is a first communication line for the first and second batteries to transmit data to the drive control unit, and an instruction for the drive control unit or the charger is transmitted to the first and second communication lines. And a second communication line for transmission to the battery.

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.

In the power controller,
The reference battery is a lead battery,
The first and second batteries may be lithium batteries.

According to an embodiment of the present invention, there is provided a control method of a power control apparatus,
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 a charger is connectable, and a first positive terminal to which a positive electrode of a first battery can be connected A battery terminal and a first negative battery terminal connectable to the negative electrode of the first battery, and a second positive battery terminal connectable to the positive electrode of the second battery, and the second And a second negative battery terminal to which the negative electrode of the battery is connectable, one end is connected to the reference battery terminal, and the other end is the reference charging terminal, the first battery power terminal, and the power supply for drive control unit A switch circuit connected to a terminal communicates with the first battery connected to the first positive battery terminal and the first negative battery terminal, and the second positive battery terminal and the second battery terminal communicate with each other. A communication line for communication by the second battery connected to the negative battery terminal, and the first connected to the first positive battery terminal and the first negative battery terminal via the communication line By receiving data including identification information of a battery and data including identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal, the first and second ones While recognizing the said identification information of 2 batteries, while controlling the electrical circuit connection of said 1st battery and said 2nd battery, charge / discharge of said 1st battery and said 2nd battery is controlled A control method of a power control apparatus comprising:
In an initial state before connection of the first battery, identification information of the first battery is set to initial identification information,
In an initial state before connection of the second battery, identification information of the second battery is set in the initial identification information,
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit to start up.
After activation, the first battery is activated to communicate via the communication line to set identification information of the first battery, and then the second battery is activated to communicate via the communication line The identification information of the second battery may be set to be different from the identification information of the first battery.

A power control apparatus according to an aspect of the present invention includes a reference battery terminal to which a positive electrode of a reference battery is connected and to which a reference voltage is supplied, a reference charging terminal to which a charger is connectable, The first positive battery terminal to which the positive electrode of the first battery can be connected, and 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 can be connected A second positive battery terminal, and a second negative battery terminal to which the negative electrode of the second battery is connectable, one end is connected to the reference battery terminal, and the other end is a reference charging terminal, the first Switch control circuit connected to the battery power supply terminal and the drive control unit power supply terminal, the first battery connected to the first positive battery terminal and the first negative battery terminal, and the drive control unit , Second A first positive battery terminal and a first negative terminal are connected via a communication line for communication between the second battery connected to the positive battery terminal and the second negative battery terminal, the drive control unit, and the communication line. Receiving data including identification information of a first battery connected to a battery terminal, and data including identification information of a second battery connected to a second positive battery terminal and a second negative battery terminal By recognizing the identification information of the first and second batteries, and controlling the electrical circuit connection between the first and second batteries, as well as charging and discharging the first and second batteries. And a drive control unit to control.

Then, in the initial state before the connection of the first battery, the identification information of the first battery is set to the initial identification information.

Then, in the initial state before connection of the second battery, the identification information of the second battery is set to the initial identification information.

Then, when the switch circuit is turned on, the drive control unit is supplied with the reference voltage of the reference battery via the switch circuit to be activated, and after activation, the first battery is activated to communicate via the communication line. The identification information of the first battery is set, and then the second battery is activated to communicate via the communication line, and the identification information of the second battery is set to be different from the identification information of the first battery. .

As described above, according to the present invention, the setting of the identification information is switched between the battery and the drive control unit with respect to the initial identification information after the battery is started to start up the next battery, and the plurality of batteries do not overlap. The lift can be completed.

In particular, when a plurality of the same batteries are connected to one communication line (bus), and the plurality of batteries are activated, the battery is recognized in the case of activating the plurality of batteries by sequentially switching the ID The cost reduction can be achieved while improving the extensibility for the determination.

As described above, according to the present invention, it is possible to achieve cost reduction while improving the extensibility for recognizing a battery when activating a plurality of batteries.

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 at the time of starting of the first and second batteries of the power control apparatus 100 shown in FIG. FIG. 3 is a diagram for explaining another example of the operation at the time of activation of the first and second batteries of power control apparatus 100 shown in FIG. 1.

Hereinafter, it will be described with reference to the drawings an embodiment of the present invention.

First embodiment

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.

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.

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.

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.

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.

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.

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.

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).

Also, 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Then, the second management unit BMU2 is activated by the first or second activation voltage supplied to the second battery power supply terminal T2B, and the state of the second cell S2 (that is, the second battery B2) (The cell voltage of the second cell S2, the SOC of the second cell S2, the temperature of the second cell S2, the current of the second cell S2, etc.) are monitored, and the second cell S2 (ie, the second cell S2) is monitored. Information on the state of the battery B2) is output.

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.

Then, the second management unit MBU2 makes the second management contactor T2 for forcibly stopping the charge / discharge of the second cell S2 according to the state (fault etc.) of the second cell S2. Prepare.

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.

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.

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.

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.

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).

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.

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.

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 reference battery K is charged by the voltage output from the down regulator DR.

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.

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.

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 battery B2, and drives the motor by this motor drive voltage. It has become. The drive control unit PDU controls the rotation of the wheel by controlling the drive of the motor M.

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. And a bridge circuit Y which is supplied with a voltage between the second drive voltage terminal TDN and outputs the motor drive voltage to the motor M to drive the motor M.

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.

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.

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.

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.

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.

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.

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.

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).

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.

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.

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.

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

First, an example in which the first and second batteries B1 and B2 are started at the start of traveling of the electric motorcycle will be described. FIG. 2 is a diagram for explaining an example of the operation at the time of starting of the first, B1, and B2 of the power control apparatus 100 shown in FIG.

For example, as shown in FIG. 2, when the switch circuit SW is turned on under the control of the main switch control unit X, the drive control unit PDU references the reference voltage of the reference battery K via the switch circuit SW and the drive control unit power supply terminal TPS1. Is supplied and started (F1).

Then, the drive control unit PDU is activated after the first battery B1 is supplied with the reference voltage of the reference battery K via the switch circuit SW and the first battery power terminal T1B, and then the first battery B1 communicates. By receiving the initial data including the identification information output via the line CAN, it is confirmed that the first battery B1 is normally connected (F2).

Then, after confirming that the first battery B1 is normally connected, the drive control unit PDU recognizes the identification information in the first battery B1 from the above-described initial identification information through the communication line CAN. It instructs to switch to the first identification information different from the initial identification information (F3).

Then, after instructing the switching to the first identification information, the drive control unit PDU receives switching data including the first identification information output by the first battery B1 via the communication line CAN. It is confirmed that the setting of switching of the identification information of the first battery B1 to the first identification information is completed.

Then, after confirming that the setting for switching to the first identification information is completed, the drive control unit PDU confirms that the second start voltage for starting the second battery B2 is the first start voltage. The voltage is supplied to the second battery B2 via the terminal TPS2 and the second battery power supply terminal T2B (F4).

Then, the drive control unit PDU receives initial data including identification information output by the second battery B2 via the communication line CAN after the second battery B2 is activated by being supplied with the second activation voltage. Thus, it is confirmed that the second battery B2 is properly connected (F5).

Then, after confirming that the second battery B2 is normally connected, the drive control unit PDU does not switch the identification information to the second battery B2 from the initial identification information via the communication line CAN. Instruct (F6).

Then, after instructing the drive control unit PDU not to switch the initial identification information, the second battery B2 receives the switching data including the initial identification information output via the communication line CAN, thereby the second It is confirmed that the setting for maintaining the identification information of the battery B2 in the initial identification information is completed.

By the above-described operation of the drive control unit PDU, the identification information can be set differently and the first and second batteries B1 and B2 can be activated at the start of traveling of the electric motorcycle.

In the operation of setting the identification information described above, the drive control unit PDU confirms that the second battery B2 is normally connected, and then transmits the identification information to the second battery B2 through the communication line. May be instructed from the initial identification information to the second identification information different from the initial identification information and the first identification information (F6).

In this case, after instructing the switching to the second identification information, the drive control unit PDU receives switching data including the second identification information output by the second battery B2 via the communication line CAN. Then, it is confirmed that the setting of the switching to the second identification information of the identification information of the second battery B2 is completed.

The drive control unit PDU supplies the voltage of the first battery B1 and the voltage of the second battery B2 to the motor M after setting the identification information of the first and second batteries B1 and B2 described above, and the motor M Control the circuit connections (first and second contactors CA, CB) such that the first battery B1 and the second battery B2 are connected in series to drive the first battery B1 and the second battery B2. The motor M is driven by a voltage in which the battery 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.

Next, an example in which the first and second batteries B1 and B2 are started at the start of charging by the charger CH will be described. FIG. 3 is a diagram for explaining another example of the operation at the time of starting of the first and second batteries B1 and B2 of the power control apparatus 100 shown in FIG. In the example shown in FIG. 3, the switch circuit SW is off.

For example, as shown in FIG. 3, when the charger CH is connected to the reference charging terminal TCS, the drive control unit PDU is configured such that the first start voltage output from the charger CH is for the reference charging terminal TCS and the drive controller It is supplied through the power supply terminal TG and activated (F1a).

The charger CH is activated after the first battery B1 is supplied with the first startup voltage from the charger CH via the reference charging terminal TCS and the first battery power terminal T1B (F1a). The first battery B1 receives the initial data including the identification information output via the communication line CAN, thereby confirming that the first battery B1 is normally connected (F2a).

Then, after confirming that the first battery B1 is normally connected, the charger CH identifies the identification information to the first battery B1 through the communication line CAN, and this initial identification information from the initial identification information. It instructs to switch to the first identification information different from F. (F3a).

Then, after instructing the charger CH to switch to the first identification information, the charger CH receives switching data including the first identification information output by the first battery B1 via the communication line CAN. It is confirmed that the setting of switching to the first identification information of the identification information of the battery B1 of No. 1 is completed.

Then, the charger CH confirms that the setting for switching to the first identification information is completed, and then the second activation voltage for activating the second battery B2 is the second activation voltage terminal. The voltage is supplied to the second battery B2 via TCOUT and the second battery power supply terminal T2B (F4a).

Then, the charger CH receives initial data including identification information output by the second battery B2 via the communication line CAN after the second battery B2 is activated by being supplied with the second activation voltage. Then, it is confirmed that the second battery B2 is properly connected (F5a).

Then, after confirming that the second battery B2 is normally connected, the charger CH instructs the second battery B2 not to switch the identification information from the initial identification information via the communication line CAN. Yes (F6a).

Then, after the charger CH instructs not to switch the initial identification information, the second battery B2 receives the switching data including the initial identification information output via the communication line CAN, thereby the second battery It is confirmed that the setting for maintaining the identification information of B2 as the initial identification information is completed.

By the above operation of the drive control unit PDU and the charger CH, when charging by the charger CH is started, the identification information can be set differently to activate the first and second batteries B1 and B2.

In the operation of setting the identification information described above, after confirming that the second battery B2 is normally connected, the charger CH identifies the identification information in the second battery B2 via the communication line CAN. May be instructed from the initial identification information to second identification information different from the initial identification information and the first identification information (F6a).

In this case, after instructing the charger CH to switch to the second identification information, the battery charger CH receives the switching data including the second identification information output by the second battery B2 via the communication line. It will be confirmed that the setting of switching of the identification information of the second battery B2 to the second identification information is completed.

The drive control unit PDU is configured to set the identification information of the first and second batteries B1 and B2 after setting the identification information of the first and second batteries B1 and B2. When the second battery B2 is charged by the charger CH, the circuit connection (the first and second contactors CA, CB is made so that the first battery B1 and the second battery B2 are connected in parallel. Control).

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, in the power control device according to one aspect of the present invention, the reference battery terminal to which the positive electrode of the reference battery is connected and the reference voltage is supplied, and the reference charging terminal to which the charger can be connected; The first positive battery terminal to which the positive terminal of the first battery is connectable, and the first negative battery terminal to which the negative terminal of the first battery is connectable are connected to the positive terminal of the second battery A second positive battery terminal that is enabled and a second negative battery terminal to which the negative electrode of the second battery is connectable, one end is connected to the reference battery terminal, and the other end is a reference charging terminal, Communication between the switch circuit connected to the first battery power supply terminal and the drive control unit power supply terminal, the first battery connected to the first positive battery terminal and the first negative battery terminal, and the drive control unit While A second battery connected to the second positive battery terminal and the second negative battery terminal, a communication line for communication with the drive control unit, and the first positive battery terminal and the second battery terminal via the communication line Data including identification information of a first battery connected to the negative battery terminal of 1; data including identification information of a second battery connected to the second positive battery terminal and the second negative battery terminal; By identifying the identification information of the first and second batteries, and controlling the electrical circuit connection between the first battery and the second battery, and the first battery and the second battery. And a drive control unit that controls charging and discharging.

As described above, according to the power control device according to the embodiment, it is possible to achieve cost reduction while improving the extensibility for recognizing a battery when starting up a plurality of batteries.

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 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

A reference battery terminal connected to a positive electrode of a reference battery and supplied with a reference voltage;
Reference charging terminal to which the charger can be connected,
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 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 connected to the first positive battery terminal and the first negative battery terminal communicates, and the second battery connected to the second positive battery terminal and the second negative battery terminal A communication line for the two batteries to communicate,
Data including identification information of the first battery connected to the first positive battery terminal and the first negative battery terminal via the communication line, the second positive battery terminal and the second negative The identification information of the first and second batteries is recognized by receiving data including the identification information of the second battery connected to the battery terminal, and the first battery and the second battery are identified. A drive control unit that controls the electrical circuit connection of the battery and controls charging and discharging of the first battery and the second battery,
In an initial state before connection of the first battery, identification information of the first battery is set to initial identification information,
In an initial state before connection of the second battery, identification information of the second battery is set in the initial identification information,
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit to start up.
After activation, the first battery is activated to communicate via the communication line to set identification information of the first battery, and then the second battery is activated to communicate via the communication line A power control apparatus, communicating to set identification information of the second battery to be different from identification information of the first battery.
The drive control unit
The power control apparatus according to claim 1, wherein a motor drive voltage is generated from voltages of the first battery and the second battery, and the motor is driven by the motor drive voltage.
A first start voltage terminal connected to the drive control unit;
A second starting voltage terminal to which the charger is connectable;
The first battery power supply terminal connectable to the first battery and connected to the other end of the switch circuit and a reference charging terminal;
And a second battery power supply terminal connectable to the second battery and connected to the first and second start voltage terminals.
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit and the drive control unit power supply terminal TPS1 to start up.
After the first battery is supplied with the reference voltage of the reference battery via the switch circuit and the first battery power supply terminal and started up, the first battery outputs the signal via the communication line Confirming that the first battery is properly connected by receiving initial data including identification information;
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting for switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the first activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, the second battery is instructed via the communication line not to switch identification information from the initial identification information,
After instructing to not switch the initial identification information, the second battery receives the switching data including the initial identification information output through the communication line, thereby identifying the second battery identification information. The power control apparatus according to claim 2, wherein it is confirmed that the setting for maintaining the initial identification information is completed.
A first start voltage terminal connected to the drive control unit;
A second starting voltage terminal to which the charger is connectable;
The first battery power supply terminal connectable to the first battery and connected to the other end of the switch circuit and a reference charging terminal;
And a second battery power supply terminal connectable to the second battery and connected to the first and second start voltage terminals.
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied through the switch circuit and the power supply terminal for the drive control unit to start up.
After the first battery is supplied with the reference voltage of the reference battery via the switch circuit and the first battery power supply terminal and started up, the first battery outputs the signal via the communication line Confirming that the first battery is properly connected by receiving initial data including identification information;
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting for switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the first activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, identification information is transmitted to the second battery from the initial identification information through the communication line. The initial identification information and the first identification information To switch to a second identification information different from
After instructing to switch to the second identification information, the second battery receives switching data including the second identification information output through the communication line, whereby the second battery The power control apparatus according to claim 2, wherein it is confirmed that the setting of switching of the identification information to the second identification information is completed.
When the drive control unit supplies a voltage 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 such that the first battery and the second battery are connected in series, and the voltage of the first battery and the second battery are connected in series to the motor. It drives, The power control apparatus of Claim 3 or 4 characterized by the above-mentioned.
The drive control unit
When the charger is connected to the reference charging terminal, a first activation voltage output from the charger is supplied via the reference charging terminal and activated.
The charger is
After the first battery is supplied with the first activation voltage from the charger via the reference charging terminal and the first battery power supply terminal and started up, the first battery transmits the communication line. Confirming that the first battery is normally connected by receiving initial data including identification information output via:
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting of switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the second activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, the second battery is instructed via the communication line not to switch identification information from the initial identification information,
After instructing to not switch the initial identification information, the second battery receives the switching data including the initial identification information output through the communication line, thereby identifying the second battery identification information. The power control apparatus according to claim 5, wherein it is confirmed that the setting for maintaining the initial identification information is completed.
The drive control unit
When the charger is connected to the reference charging terminal, a first activation voltage output from the charger is supplied via the reference charging terminal and activated.
The charger is
After the first battery is supplied with the first activation voltage from the charger via the reference charging terminal TCS and the first battery power supply terminal and started up, the first battery is connected to the communication line By confirming that the first battery is normally connected by receiving initial data including identification information output via
After confirming that the first battery is normally connected, identification information is transmitted from the initial identification information to the first battery via the communication line. The first identification is different from the initial identification information. To switch to the information,
After instructing to switch to the first identification information, the first battery receives switching data including the first identification information output through the communication line, whereby the first battery is Confirm that the setting of switching of the identification information to the first identification information is completed,
After confirming that the setting of switching to the first identification information is completed, a second activation voltage for activating the second battery is used as the second activation voltage terminal and the second battery Supply to the second battery via a power supply terminal,
After the second battery is supplied with the second activation voltage and activated, the second battery receives the initial data including the identification information output through the communication line. Make sure that the battery is properly connected,
After confirming that the second battery is normally connected, identification information is transmitted to the second battery from the initial identification information through the communication line. The initial identification information and the first identification information To switch to a second identification information different from
After instructing to switch to the second identification information, the second battery receives switching data including the second identification information output through the communication line, whereby the second battery The power control apparatus according to claim 5, wherein it is confirmed that the setting of switching of the identification information to the second identification information is completed.
In the case where the first battery and the second battery are charged by the charger after the setting of the identification information of the first and second batteries, the drive control unit is configured to set the first battery and the first battery and the second battery. The circuit connection is controlled such that the second battery is connected in parallel, and the first battery and the second battery are charged in parallel by the charger. Or the power control device according to 7.
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 and controlled by the drive control unit;
And a second contactor connected between the first negative battery terminal and the second charging terminal and controlled by the drive control unit.
The drive control unit
The 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.
The power control apparatus according to claim 8, characterized in that:
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 9, wherein the power control apparatus is connected in parallel.
The power control apparatus according to claim 8, wherein the configuration of the second battery is the same as the configuration of the first battery.
The communication line is a first communication line for the first and second batteries to transmit data to the drive control unit, and an instruction for the drive control unit or the charger is transmitted to the first and second communication lines. The power control apparatus according to claim 1, further comprising: a second communication line for transmitting to the 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. The power control apparatus according to claim 8.
The reference battery is a lead battery,
The power control device according to claim 11, wherein the first and second batteries are lithium batteries.
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 a charger is connectable, and a first positive terminal to which a positive electrode of a first battery can be connected A battery terminal and a first negative battery terminal connectable to the negative electrode of the first battery, and a second positive battery terminal connectable to the positive electrode of the second battery, and the second And a second negative battery terminal to which the negative electrode of the battery is connectable, one end is connected to the reference battery terminal, and the other end is the reference charging terminal, the first battery power terminal, and the power supply for drive control unit A switch circuit connected to a terminal communicates with the first battery connected to the first positive battery terminal and the first negative battery terminal, and the second positive battery terminal and the second battery terminal communicate with each other. A communication line for communication by the second battery connected to the negative battery terminal, and the first connected to the first positive battery terminal and the first negative battery terminal via the communication line By receiving data including identification information of a battery and data including identification information of the second battery connected to the second positive battery terminal and the second negative battery terminal, the first and second ones While recognizing the said identification information of 2 batteries, while controlling the electrical circuit connection of said 1st battery and said 2nd battery, charge / discharge of said 1st battery and said 2nd battery is controlled A control method of a power control apparatus comprising:
In an initial state before connection of the first battery, identification information of the first battery is set to initial identification information,
In an initial state before connection of the second battery, identification information of the second battery is set in the initial identification information,
The drive control unit
When the switch circuit is turned on, the reference voltage of the reference battery is supplied via the switch circuit to start up.
After activation, the first battery is activated to communicate via the communication line to set identification information of the first battery, and then the second battery is activated to communicate via the communication line A control method of a control method of a power control apparatus, comprising communicating to set identification information of the second battery to be different from identification information of the first battery.