JP2010028881A - Control device, and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device and method, capable of increasing the amount of charge, when charged after removing a removable battery from a vehicle. <P>SOLUTION: The control device controls supply from a plurality of batteries 150 mounted on a vehicle to a rotary electric machine 110 thereby running the vehicle. The control device includes: a storage unit for storing a battery charge state of each battery 150; and a control unit for performing supply battery selection processing and switching control processing. In the feed battery selection processing, it selects which battery 150 the rotary electric machine 110 should be supplied with power from out of the plurality of batteries 150, based on the battery charge state, and for the selection, a specified battery 151, which can be removed from the vehicle out of the plurality of batteries 150 and can be charged with power from a power supply outside the vehicle, is performed preferentially to other batteries 152. In the switching control processing, switches 153 and 154 in current paths are controlled so that the power of the selected specified battery 151 may be supplied to the rotary electric machine 110. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a control device that controls power feeding from a plurality of batteries mounted on a vehicle to a rotating electric machine for traveling to drive the vehicle, and controls charging of electric power generated by the rotating electric machine for power generation to the plurality of batteries, and It relates to a control method.

  In recent years, electric vehicles, hybrid vehicles, fuel cell vehicles, and the like have attracted attention as environmentally friendly vehicles. These vehicles are equipped with a rotating electrical machine that generates a driving force for driving and a battery that stores electric power supplied to the rotating electrical machine. The hybrid vehicle is further equipped with a rotating electric machine as a power source and an internal combustion engine, and the fuel cell vehicle is equipped with a fuel cell as a DC power source for driving the vehicle.

  A vehicle capable of directly charging a vehicle driving battery mounted on such a vehicle from a power source of a general household is known. For example, by connecting a commercial power outlet provided in a house and a charging port provided in a vehicle with a charging cable, power is supplied from the power supply of a general household to the battery. A vehicle capable of directly charging a battery mounted on the vehicle from a power source outside the vehicle is referred to as a “plug-in vehicle”.

  However, in the case of an apartment or the like, a commercial power outlet is not always provided in the parking lot. When the commercial power outlet is not provided in the parking lot, the battery of the plug-in vehicle cannot be charged at night when the plug-in vehicle is parked in the parking lot.

  Therefore, there is a possibility that the commercial value of the plug-in vehicle for a person who does not have a commercial power outlet in the parking lot of his vehicle may be reduced.

  In order to solve the above problem, it is conceivable to configure the plug-in vehicle as follows. In other words, a plurality of batteries including a battery that can be attached to and detached from the vehicle and a battery that is fixedly installed on the vehicle are mounted on the plug-in vehicle. Take it to a place where it exists and charge it.

In addition, as a power supply device comprising a plurality of batteries mounted on a hybrid vehicle, Patent Document 1 discloses a plurality of batteries each detachable from the hybrid vehicle and connected in series, and electric power stored in the batteries. And when the motor is driven in a state where any one of the plurality of batteries is removed, a battery that is not removed and a relay that connects the motor are provided. A power supply device for a hybrid vehicle that supplies electric power is disclosed.
JP 2006-6077 A

  In vehicles equipped with a plurality of batteries, each battery is normally charged and discharged equally.

  Therefore, when a plurality of batteries including a battery detachable from the vehicle and a battery fixedly installed on the vehicle are mounted on the plug-in vehicle, the detachable battery and the fixedly installed battery are charged and discharged equally, Since the decrease in the remaining capacity of the detachable battery is less than when only the detachable battery is mounted on the plug-in vehicle, the merit of removing and charging the detachable battery is reduced.

  In addition, since a battery fixedly installed in a plug-in vehicle is not normally attached or detached for charging from a commercial power source, the only opportunity for charging is charging by the power generation of a rotating electric machine while the vehicle is running. Less than Therefore, it is preferable that the fixedly installed battery does not discharge as much as possible.

  An object of the present invention is to reduce the amount of discharge of a battery fixedly installed in a vehicle while increasing the amount of charge when a battery that is detachable from a vehicle is removed and charged in view of the conventional problems described above. It is in the point which provides the control apparatus and control method which can be performed.

  In order to achieve the above-described object, a characteristic configuration of a control device according to the present invention is a control device that controls power feeding from a plurality of batteries mounted on a vehicle to a rotating electrical machine so that the vehicle travels, and charging included in the plurality of batteries. Based on the battery charge state determined based on the detection value from the state detection unit and the battery charge state stored in the storage unit, power supply control is performed from any of the plurality of batteries to the rotating electrical machine. The selection is made by selecting a power supply battery selection process in which a specific battery that can be removed from the vehicle and charged by a power source outside the vehicle is preferentially given over other batteries, and a power supply battery selection process. The switching control process for controlling the switching unit in the current path is executed so that the electric power of the specific battery selected by is supplied to the rotating electrical machine It lies in the fact that includes a control unit.

  According to the above-described configuration, the control unit preferentially selects a specific battery that is detachable from the vehicle over another battery (for example, a battery that is fixedly installed on the vehicle), and controls power feeding to the rotating electrical machine. Since the path is switched, the discharge amount of a specific battery is larger than the discharge amounts of other batteries. As a result, the remaining capacity of the specific battery is smaller than the remaining capacity of the other batteries, and the merit of removing and charging the specific battery is increased.

  As described above, according to the present invention, there is provided a control device capable of increasing the amount of charge when a detachable battery is removed from a vehicle and charging, and reducing the amount of discharge of a battery fixedly installed in the vehicle. Can now be offered.

  Hereinafter, a control device and a control method according to the present invention will be described.

  As shown in FIG. 1, the plug-in hybrid vehicle includes an engine 100, a rotating electrical machine 110 including a generator 111 and a motor 121, a power split mechanism 130, a speed reducer 140, a plurality of batteries 150, driving wheels 160, an inverter 180, and a converter. 190 and a plurality of electronic control units (hereinafter referred to as ECUs) 170 and the like. ECU 170 includes a hybrid ECU (hereinafter referred to as HV-ECU) 171 as a control device according to the present invention.

  In the plug-in hybrid vehicle, the engine 100, the generator 111, and the motor 112 are connected to the power split mechanism 130 so that the plug-in hybrid vehicle can run with driving force from at least one of the engine 100 and the motor 112.

  The power generated in the engine 100 is divided by the power split mechanism 130 into two paths: a path transmitted to the drive wheels 160 via the speed reducer 140 and a path transmitted to the generator 111.

  The generator 111 and the motor 112 are AC rotating electrical machines, and for example, a three-phase AC synchronous motor including a U-phase coil, a V-phase coil, and a W-phase coil is used.

  The generator 111 is driven by the power of the engine 100 divided by the power split mechanism 130 to generate power. For example, when the remaining capacity of battery 150 (hereinafter also referred to as “SOC (State Of Charge)”) becomes lower than a predetermined value, engine 100 is started and power is generated by power generator 111, and power generator 111. Is converted from alternating current to direct current through the inverter 180, and the voltage is adjusted through the converter 190 and then stored in the battery 150. Note that the SOC of the battery 150 is calculated by a battery ECU 172 described later.

  The motor 112 generates a driving force using at least one of the electric power stored in the battery 150 and the electric power generated by the generator 111, and the driving force is applied to the driving wheel 160 via the gear mechanism 131 and the speed reducer 140. Communicated. The motor 120 drives the vehicle by assisting the engine 100 or by its own driving force. In FIG. 1, the driving wheel 160 is shown as a front wheel, but the rear wheel 162 may be driven by the motor 120 instead of the front wheel or together with the front wheel.

  Converter 190 steps up or steps down the voltage of battery 150. For example, the converter 190 boosts the input voltage (for example, 200 (V)) from the battery 150 to a voltage in the range up to the output voltage (for example, 400 (V)), and the output voltage of the inverter 180 is increased to the voltage of the battery 150. Step down to

  To what extent the voltage is boosted is made variable based on the magnitude of the required torque described later. For example, when the driver is not squeezing the accelerator, the voltage is not boosted, and the boost is increased to a larger voltage as the driver steps on the accelerator. Converter 190 is controlled by one of ECUs 170 described below, for example, HV-ECU 171.

  Inverter 180 is controlled by MG-ECU 174, which will be described later, among a plurality of ECUs 170, converts DC power input from battery 150 into AC power and outputs it to rotating electrical machine 110, and AC input from rotating electrical machine 110. The electric power is converted into DC power and output to the battery 150.

  When the vehicle is braked or the like, the motor 112 is driven by the drive wheel 160 via the speed reducer 140, and the motor 112 operates as a generator. That is, the motor 112 functions as a regenerative brake that converts braking energy into electric power. The electric power generated by the motor 112 is stored in the battery 150.

  Power split device 130 is constituted by a planetary gear including a sun gear, a pinion gear, a carrier, and a ring gear. The pinion gear engages with the sun gear and the ring gear, and the carrier supports the pinion gear so as to be capable of rotating, and is connected to the crankshaft of the engine 100. The sun gear is connected to the rotating shaft of the generator 111, and the ring gear is connected to the rotating shaft of the motor 112 and the speed reducer 140.

  The engine 100, the generator 111, and the motor 112 are connected via a power split mechanism 130 that is a planetary gear, so that the rotation speed of the engine 100, the generator 111, and the motor 112 is reduced as shown in FIG. The relationship is connected by a straight line on the alignment chart.

  As shown in FIG. 1, each battery 150 is a DC power source that can be charged and discharged, and is composed of, for example, a secondary battery such as nickel metal hydride or lithium ion. The voltage of each battery 150 is, for example, about 200V.

  The plurality of batteries 150 includes a specific battery that can be removed from the vehicle and can be charged by a power supply external to the vehicle, and another battery.

  In the present embodiment, the plurality of batteries 150 includes a specific battery 151 that can be attached to and detached from the vehicle (hereinafter referred to as a removable battery 151) and another battery 152 that is fixedly installed in the vehicle (hereinafter referred to as a fixed installation battery 152). The description will be made assuming that it consists of: In FIG. 1, only two batteries 150, ie, the detachable battery 151 and the fixed installation battery 152 are illustrated, but the number of the batteries 150 is not limited to two, and may be three or more.

  The detachable battery 151 can be easily removed as compared with the fixed installation battery 151 by manually operating a detachable switch provided in the vicinity of the detachable battery 151 or in the vicinity of the dashboard by the user of the vehicle. It is configured.

  In addition to the electric power generated by the rotating electrical machine 110, the removable battery 151 stores electric power supplied from a vehicle external power source such as a commercial power source. When charging the detachable battery 151 from the vehicle external power supply, the detachable battery 151 is removed from the vehicle and taken to a place where the outlet of the vehicle external power supply exists, and the detachable battery 151 and the outlet of the vehicle external power supply are connected to a charging cable or the like. The battery is charged by connecting via the.

  The fixed installation battery 152 can be removed by removing a screw or the like that fixes the fixed installation battery 152 when it is necessary to replace the fixed installation battery 152 due to a failure or a lifetime of the fixed installation battery 152. It is configured. The fixed installation battery 152 stores electric power generated by the rotating electrical machine 110.

  ECU 170 includes a battery ECU 172 that monitors the state of charge of battery 150, an engine ECU 173 that controls the intake air amount and fuel injection amount of engine 100, an MG-ECU 174 that controls rotating electrical machine 110, and a plug-in hybrid vehicle. Power distribution between the engine 150 and the rotating electrical machine 110 is determined based on the requested power, the charging permission power Win and the discharge permission power Wout of the battery 150, and power corresponding to the distribution is output to the engine ECU 173 and the MG-ECU 174 HV-ECU171 etc. which instruct | indicate to do are comprised.

  Each ECU 170 is provided with a microcomputer including a CPU, a ROM and / or EEPROM storing a control program executed by the CPU, a RAM used as a working area, an input / output circuit, and the like. Each ECU 170 is connected to be communicable with each other.

  The battery ECU 172 receives measurement values from a voltage measurement unit that measures the output voltage of each battery 150, a current measurement unit that measures the output current of each battery 150, a temperature measurement unit that measures the temperature of each battery 150, and the like. The SOC of each battery 150 is calculated based on these measured values.

  The engine ECU 173 outputs signals from sensors such as a throttle opening sensor and an A / F sensor provided in the engine 100, and communication data from other ECUs 170 (for example, data indicating required power from the HV-ECU 171). Based on the above, the state of the engine 100 is ascertained, and the amount of fuel supplied to the engine 100, the supply timing, and the like are controlled, so that the engine 100 is driven and controlled to achieve an appropriate rotational speed.

  The MG-ECU 174 drives and controls the rotating electrical machine 110 so as to satisfy the required torque of the rotating electrical machine 110 input from the HV-ECU 171, and the HV-ECU 171 requests the rotating electrical machine 110 to output each battery 150. In some cases, the rotary electric machine 110 is driven and controlled in order to secure a power generation amount that satisfies the output request.

  The HV-ECU 171 controls the power supply from the plurality of batteries 150 mounted on the vehicle to the rotating electrical machine 110 to drive the vehicle.

  In addition, the HV-ECU 171 controls the power supply from the plurality of batteries 150 mounted on the vehicle to the traveling rotating electrical machine (motor 112) to travel the vehicle, and also travels the rotating electrical machine (motor 112) or power generation. The electric power generated by the rotating electrical machine (generator 111) may be controlled to charge the plurality of batteries 150.

  This will be described in detail below. As shown in the flowchart of FIG. 3, the HV-ECU 171 is a plug-in hybrid vehicle such as an accelerator opening obtained from an accelerator position sensor, a shift position obtained from a shift position sensor, and vehicle speed information obtained from a vehicle speed sensor. The driver request output is calculated based on the driving state (SA1).

  Further, when braking the vehicle, the motor 112 is required to operate as a generator, that is, to function as a regenerative brake (SA1). Further, the HV-ECU 171 receives from the battery ECU 172 a power value required by the battery 150 calculated by the battery ECU 172 from the SOC or the like, that is, a battery request output (SA1).

  Then, the HV-ECU 171 calculates the required output to the engine to be output to the engine ECU 173 in order to generate the required power using the calculated driver required output and the total value of the received battery required output as the required power. A required torque for rotating electrical machine 110 output to MG-ECU 174 is calculated (SA2).

  The HV-ECU 171 supplies electric power from the battery 150 to the rotating electric machine 110 during powering of the plug-in hybrid vehicle, and charges the MG-ECU 174 to charge the battery 150 with electric power generated by the rotating electric machine 110 during braking of the plug-in hybrid vehicle. The rotating electrical machine 110 is controlled (SA3).

  Specifically, the HV-ECU 171 outputs a request to the engine and a request to the rotating electrical machine 110 for the operating state of the plug-in hybrid vehicle stored in the SOC of the battery 150 input from the battery ECU 172 and the ROM of the HV-ECU 171. MG is executed so that the battery 150 is charged and discharged so that the SOC is within the target range within the range of the allowable charging power Win and the allowable discharging power Wout within the range of the allowable charging power Win and the allowable discharging power Wout. -Let the ECU 174 control the rotating electrical machine 110.

  The HV-ECU 171 instructs the engine ECU 173 to start and stop the engine 100. For example, the HV-ECU 171 does not start the engine 100 and starts the plug-in hybrid without starting the engine 100 when the plug-in hybrid vehicle starts, runs at a low speed, or goes down a gentle slope. Engine ECU 173 and MG-ECU 174 are controlled so that the vehicle travels. Then, when an operation state that requires a driving force of a predetermined value or more is reached, the engine ECU 173 is commanded to start the engine 100.

  As described above, the HV-ECU 171 determines the power distribution between the engine 100 and the rotating electrical machine 110 based on the required power of the vehicle and the SOC of the battery 150, controls the power split mechanism 130, and controls the engine ECU 100 and the MG- The ECU 174 is instructed to output power according to the distribution. The HV-ECU 171 repeats the above processing at a predetermined interval.

  The HV-ECU 171 includes a storage unit that stores a battery charge state that is determined based on detection values from charge state detection units provided in the plurality of batteries 150, and a control unit that will be described later.

  Here, the charge state detection unit is, for example, a voltage measurement unit, a current measurement unit, a temperature measurement unit, and the like provided in each battery 150, and the battery charge state is, for example, the SOC of each battery 150. That is. That is, the SOC of each battery transferred from the battery ECU 172 to the HV-ECU 171 is stored in the storage unit.

  The function of the control unit is realized by the CPU executing a control program. The storage unit is configured by the above-described RAM and / or EEPROM.

  Based on the state of charge of each battery 150 stored in the storage unit, the control unit selects one of the plurality of batteries 150 and controls power feeding to the rotating electrical machine 110. At this time, the control unit switches the path so that the removable battery 151 is preferentially selected over the fixed installation battery 152 and the power supply to the rotating electrical machine 110 is controlled. Here, the state of charge of each battery 150 is the SOC of each battery 150.

  This will be described in detail below. As shown in FIG. 1, the removable battery 151 and the inverter 180 are connected via a switch 153 as a switching unit, and the fixed installation battery 152 and the inverter 180 are connected via a switch 154 as a switching unit. . The switches 153 and 154 are constituted by relays, for example.

  The control unit switches the switches 153 and 154 on and off by outputting control signals to the switches 153 and 154. By switching on and off the switches 153 and 154, either the detachable battery 151 or the fixed installation battery 152 is connected to the inverter 180, and power feeding is controlled to the rotating electrical machine 110 by the connected battery 150.

  The control unit reads the SOCs of the removable battery 151 and the fixed installation battery 152 stored in the storage unit, and supplies power to the rotating electrical machine 110 based on the read SOC and map data as shown in FIG. The battery 150 to be used is determined.

  In FIG. 4A and FIG. 4B described later, the predetermined value 1 is the discharge permission power Wout (for example, 40 (%)) of the fixed installation battery 152, and the predetermined value 2 is the charge permission power Win ( For example, 60 (%)), the predetermined value 3 is the discharge permission power Wout (for example, 40 (%)) of the detachable battery 151, and the predetermined value 4 is the charge permission power Win (for example, 60 (%)) of the detachable battery 151. .

  In the map data of FIG. 4A, the rotating electrical machine 110 is fed by the fixed installation battery 152 only when the SOC of the detachable battery 151 is smaller than the discharge permission power Wout (predetermined value 3) and further discharge is not preferable. In other cases, the rotating electrical machine 110 is powered by the detachable battery 151. That is, the map data in FIG. 4A is configured such that the removable battery 151 is selected with priority over the fixed installation battery 152.

  For example, the SOC of the fixed installation battery 152 is 50 (%) (predetermined value 1 or more and smaller than the predetermined value 2), and the SOC of the removable battery 151 is 40 (%) (predetermined value 3 or more and smaller than the predetermined value 4). .)), The control unit applies these SOCs to the map data shown in FIG. 4A, and turns off the switch 154 and turns on the switch 153. That is, the detachable battery 151 supplies power to the rotating electrical machine 110. Decide that.

  From the above description, the control unit selects, based on the battery charge state stored in the storage unit, which battery 150 from the plurality of batteries 150 should be controlled to feed power, and the selection is A power supply in which a specific battery (detachable battery 151 in this description) that can be removed from the vehicle and charged by a power source outside the vehicle among the plurality of batteries 150 is given priority over other batteries (fixed installation battery 152 in this description). The battery selection process and the switching control process for controlling the switching unit in the current path are executed so that the power of the specific battery selected by the power supply battery selection process is supplied to the rotating electrical machine 110.

  Further, the control unit may select one of the plurality of batteries 150 based on the charging state of each battery 150 stored in the storage unit, and may perform charge control on the power generated by the rotating electrical machine 110. In this case, the control unit may switch the path so as to preferentially select the fixed installation battery 152 over the removable battery 151 and perform charge control.

  This will be described in detail below. The control unit reads the SOCs of the removable battery 151 and the fixed installation battery 152 stored in the storage unit, and charges the battery 150 to be charged based on the read SOC and map data as shown in FIG. decide.

  In the map data of FIG. 4B, the detachable battery 151 is charged only when the SOC of the fixed installation battery 152 is larger than the charging permission power Win (predetermined value 2), and charging beyond this is not preferable. The fixed installation battery 152 is charged. That is, the map data in FIG. 4B is configured such that the fixed installation battery 152 is preferentially selected over the removable battery 151.

  For example, when the SOC of the fixed installation battery 152 is 35 (%) (smaller than the predetermined value 1) and the SOC of the removable battery 151 is 50 (%) (predetermined value 3 or more and smaller than the predetermined value 4). The control unit applies these SOCs to the map data shown in FIG. 4B, and determines that the switch 154 is turned on and the switch 153 is turned off, that is, the fixed installation battery 152 is charged.

  From the above description, the control unit selects, based on the battery charge state stored in the storage unit, which of the plurality of batteries 150 should be charged and controlled by the rotating electrical machine 110, The selection includes a charging battery selection process that preferentially uses a battery other than a specific battery that can be removed from the vehicle and can be charged by a power source external to the vehicle, and the other selected by the charging battery selection process. A switching control process for controlling the switching unit in the current path is executed so that the battery is charged by the electric power generated by the rotating electrical machine 110.

  As described above, HV-ECU 171 determines the distribution of power to rotating electrical machine 110 based on the required power of the vehicle and the like, and instructs MG-ECU 174 to output the power according to the distribution. That is, the HV-ECU 171 determines whether to perform power feeding control from the battery 150 to the rotating electrical machine 110 or to perform charging control from the rotating electrical machine 110 to the battery 150, and supplies power necessary for executing the determined control. Instructing MG-ECU 174 to output. For example, power supply control to the rotating electrical machine 110 is performed when the vehicle is accelerated, and charging control from the rotating electrical machine 110 is performed when the vehicle is braked.

  Therefore, when the HV-ECU 171 controls the power supply from the battery 150 mounted on the vehicle to the motor 112 to drive the vehicle and controls the charging of the power generated by the motor 112 or the generator 111 to the battery 150, the control unit performs the following. Such processing may be executed.

  That is, the control unit selects one of the plurality of batteries 150 based on the charging state of each battery 150 stored in the storage unit, controls power feeding to the rotating electrical machine 110, and charges the power generated by the rotating electrical machine 110. You may control. In this case, the control unit preferentially selects the detachable battery 151 over the fixed installation battery 152 and controls power feeding to the rotating electrical machine 110, or selects the fixed installation battery 152 with priority over the detachable battery 151. The path may be switched so as to control charging.

  Detailed description. The control unit determines map data to be used based on the control determined by the HV-ECU 171 (control of either power feeding control or charging control). That is, when power supply control from the battery 150 to the rotating electrical machine 110 is executed, the battery used for powering the rotating electrical machine 110 based on the SOC read from the storage unit and the map data as shown in FIG. 150 is determined, and when charging control from the rotating electrical machine 110 to the battery 150 is executed, the battery 150 to be charged is determined based on the SOC read from the storage unit and the map data as shown in FIG. To do.

  From the above description, based on the battery charge state stored in the storage unit, it is selected which of the plurality of batteries 150 should be controlled to feed power to the rotating electrical machine 110, and the selection is made based on the plurality of batteries 150. Based on the power supply battery selection process in which a specific battery that can be removed from the vehicle and can be charged by a power source outside the vehicle is given priority over other batteries, and the charging state of the plurality of batteries 150 stored in the storage unit The battery 150 is selected from among the batteries 150 to be charged and controlled by the rotating electrical machine 110, and the selection is performed by a charging battery selection process in which another battery is given priority over a specific battery, and power supply In the current path, the power of the specific battery selected by the battery selection process is supplied to the rotating electrical machine 110. A switching control process for controlling the switching unit in the current path so that another battery selected by the charging battery selection process is charged by the electric power generated by the rotating electrical machine 110. .

  The control unit controls the switching units (switches 153 and 154) when the traveling state of the vehicle stored in the storage unit changes, and supplies a battery 150 that is a power supply source to the rotating electrical machine 110 or a charging destination from the rotating electrical machine 110. Switch. Here, the running state of the vehicle is detected by the running state detection unit and stored in the storage unit. The travel state includes, for example, any of vehicle demand torque, accelerator operation, brake operation, transmission operation, steering operation, vehicle speed, acceleration, or travel environment.

  The running state detection unit includes, for example, a throttle opening sensor that detects a throttle valve opening that varies depending on an accelerator operation, a hydraulic sensor that detects a hydraulic pressure used to calculate a brake opening that varies depending on a brake operation, and the rotating electrical machine described above 110 is a functional block (for example, a control unit) of the HV-ECU 170 that calculates a vehicle request torque as a request torque to the vehicle 110, a shift position sensor that detects a shift position that varies depending on a transmission operation, and a steering angle of a front wheel that varies depending on a steering operation. These are functional blocks such as a steering angle sensor to detect, a vehicle speed sensor to detect the current vehicle speed, an acceleration sensor to detect the current acceleration, and an engine ECU 173 that calculates acceleration based on fluctuations and time of the vehicle speed.

  The traveling environment is, for example, an environment such as an uphill, a downhill, or road surface unevenness calculated based on the position information of the host vehicle received by a navigation device mounted on the vehicle via a GPS antenna. The traveling state detection unit that detects the traveling environment based on the above calculation, for example, autonomous navigation as a functional block of a navigation device that manages the traveling state of the vehicle based on the position information, the engine speed input from the engine ECU 173, and the like. Provided in the department.

  If the control unit switches the battery 150 when there is no change in the running state of the vehicle, the voltage may fluctuate and an impact such as light shaking may be applied to the driver, and the driver may be suspicious. However, according to the above-described configuration, the impact due to the switching of the battery 150 can be absorbed into the impact such as light shaking accompanying the change (for example, acceleration) of the running state of the vehicle. Can be prevented.

  Further, the running state detection unit may be a functional block of a safety control system ECU (not shown). For example, the safety control system ECU detects a brake slip or the like based on a detection value of a yaw G sensor mounted on the vehicle. Then, the control unit does not switch the power feeding path or the charging path, that is, the battery 150 to be used when the brake slips, and switches the path after the side slip is not detected by the yaw G sensor. This is because if the voltage is changed by switching the power supply or charging control target battery 150 during the side slip of the brake, an unexpected impact may be applied to the vehicle or the driver, which is dangerous.

  Hereinafter, switching of the route by the HV-ECU 171 will be described based on the flowchart shown in FIG.

  Battery ECU 172 calculates the SOC of each battery 150 (detachable battery 151 and fixed installation battery 152) (SB1).

  When power supply control to the rotating electrical machine 110 is being executed, for example, when the plug-in hybrid vehicle is in power running (SB2), the control unit receives the SOC input from the battery ECU 172 and the map data shown in FIG. The battery 150 to be used for power supply to the rotating electrical machine 110 is determined based on the above (SB3), and a control signal for switching the switches 153 and 154 according to the determination is output to the switches 153 and 154 (SB4).

  When the charging control to the battery 150 is being executed, for example, when the plug-in hybrid vehicle is braking (SB2), the control unit uses the SOC input from the battery ECU 172 and the map data shown in FIG. 4B. Based on this, the battery 150 to be charged is determined (SB5), and a control signal for switching the switches 153 and 154 according to the determination is output to the switches 153 and 154 (SB4). The HV-ECU 171 repeats the above processing at a predetermined interval.

  Hereinafter, the route switching by the HV-ECU 171 will be further described based on the timing charts shown in FIGS. 6 and 7.

  In FIG. 6, the initial state is that the vehicle speed is 0 (km / h), the SOC of the fixed installation battery 152 is greater than or equal to a predetermined value 1 and smaller than the predetermined value 2 during power supply control to the rotating electrical machine 110, and the SOC of the removable battery 151. Is greater than or equal to the predetermined value 3 and smaller than the predetermined value 4, the switch 154 is off, and the switch 153 is on (TA1). That is, the map data shown in FIG. 4A is in the state “5.”, and the detachable battery 151 is used for power supply to the rotating electrical machine 110.

  In this state, when the plug-in hybrid vehicle starts traveling (TA2), the detachable battery 151 is used for power supply to the rotating electrical machine 110, so that the SOC decreases and reaches a predetermined value 3 (TA3). Then, since the map data shown in FIG. 4A transitions from the “5.” state to the “4.” state, the switch 154 is turned on and the switch 153 is turned off.

  Therefore, electric power for further accelerating the plug-in hybrid vehicle is supplied from the fixed installation battery 152 to the rotating electrical machine 110, and its SOC decreases and reaches a predetermined value 1 (TA4). Then, the map data shown in FIG. 4A transitions from the “4.” state to the “1.” state.

  Thereafter, as shown in FIG. 6, the SOC of each of the batteries 151 and 152 is changed by switching the power feeding control to the rotating electrical machine 110 accompanying the acceleration of the vehicle and the charging control to the battery accompanying the deceleration of the vehicle. The control unit switches the batteries 151 and 152 to be used by switching the switches 153 and 154 on and off based on the SOCs of the batteries 151 and 152.

  In FIG. 7A, the initial state is that the vehicle speed is 0 (km / h), the power supply control to the rotating electrical machine 110 is in progress, the SOC of the fixed installation battery 152 is smaller than the predetermined value 1, and the SOC of the removable battery 151 is predetermined. When the value is larger than 4, the switch 154 is off and the switch 153 is on (TB1). That is, the map data shown in FIG. 4A is in the state “3.”, and the detachable battery 151 is used to supply power to the rotating electrical machine 110.

  In this state, when the plug-in hybrid vehicle starts running (TB2), the detachable battery 151 is used for power supply to the rotating electrical machine 110, so the SOC decreases. Then, the map data shown in FIG. 4A transitions from the “3.” state to the “2.” state.

  If the plug-in hybrid vehicle changes from acceleration to deceleration before the SOC of the detachable battery 151 reaches the predetermined value 3 (TB3), the power supply control by power running is switched to the charge control by regenerative braking. Then, since the map data shown in FIG. 4A transitions from the “2.” state to the “11.” state, the switch 154 is turned on and the switch 153 is turned off.

  As a result, charging to the fixed installation battery 152 is started, and the SOC increases. Then, the state of the map data shown in FIG. 4A changes from “11.” to “14.”.

  In FIG. 7B, the initial state is the same as that in FIG. 7A (TC1). When the plug-in hybrid vehicle starts running in this state, surplus power may be used to charge the battery 150 (TC2).

  In this case, since the map data shown in FIG. 4A transitions from the “3.” state to the “12.” state, the switch 154 is turned on and the switch 153 is turned off. As a result, the fixed installation battery 152 is charged and its SOC increases. Then, the state of the map data shown in FIG. 4A changes from “12.” to “15.”.

  If there is no surplus power during the acceleration of the plug-in hybrid vehicle and the charging control is switched to the power feeding control (TC3), the map data shown in FIG. 4A changes from the “15.” state to the “6.” state. Therefore, the switch 154 is turned off and the switch 153 is turned on.

  As a result, the detachable battery 151 is used to supply power to the rotating electrical machine 110, so that the SOC is reduced. Then, the state of the map data shown in FIG. 4A changes from “6.” to “5.”.

  As described above, the control method according to the present invention detects the charge state of each battery 150 with respect to a plurality of batteries 150 including one battery 151 detachable from the vehicle and another battery 152 fixedly installed on the vehicle. The battery state detection step to be performed, and based on the charging state of each battery 150 detected by the battery state detection step, the power supply control is performed for the rotating electrical machine 110 for traveling by selecting any of the plurality of batteries 150 and the rotating electrical machine. 110 includes a control step for controlling charging of the power generated by 110 to the plurality of batteries 150. The control step selects the detachable battery 151 preferentially over the fixed installation battery 152 and controls power feeding to the rotating electrical machine 110 or is fixed. Select and preferentially select the installation battery 152 over the removable battery 151, and control charging. A method of displaying a charging or powered state when the.

  The display unit includes, for example, a liquid crystal display of a navigation device mounted on a plug-in hybrid vehicle, and the liquid crystal display is provided on the instrument panel of the vehicle. In the control step, a symbol for identifying the battery, such as the current SOC of each battery 150 and the history of the SOC, and the name and number of the battery currently used for power supply control or charge control are displayed on the display unit. indicate.

  In addition, the control method according to the present invention controls the power supply from the plurality of batteries 150 mounted on the vehicle to the rotating electric machine (motor 112) for traveling to drive the vehicle, and the rotating electric machine for electric power generation (generator 111) It is a control method for controlling charging of a plurality of batteries 150 with electric power to be generated, and any one of the plurality of batteries 150 is determined based on a battery charge state determined by a detection value from a charge state detection unit included in the plurality of batteries 150. Whether or not to control power feeding from the battery 150 to the rotating electrical machine 110 is selected, and the selection is made by selecting a specific battery (detachable battery 151 in the present embodiment) that can be removed from the vehicle and charged by a power source outside the vehicle. ) Is performed preferentially over other batteries (in this embodiment, fixed installation battery 152). And which battery 150 of the plurality of batteries 150 should be charged with the power generated by the rotating electrical machine 110 based on the battery charge state determined by the detected value from the charge state detection unit included in the plurality of batteries 150 In this selection, the charging battery selection step in which another battery is given priority over the specific battery and the specific battery selected in the power supply battery selection step are supplied to the rotating electrical machine 110 so that the electric current is supplied to the rotating electrical machine 110. A switching control step for controlling the switching unit in the current path is performed such that the switching unit in the path is controlled or another battery selected in the charging battery selection step is charged by the electric power generated by the rotating electrical machine 110. It is a method to do.

  Hereinafter, another embodiment will be described. As illustrated in FIG. 8, the rotating electrical machine 110 and each battery 150 are configured to be connected in parallel and in series via switches 153, 154, and 155, in other words, the switching unit connects the rotating electrical machine 110 and the plurality of batteries 150. The current path can be switched so that the parallel connection and the series connection are established, and the control unit supplies power to the rotating electrical machine 110 by connecting the removable battery 151 and the fixed installation battery 152 in series when the vehicle required torque is equal to or greater than the predetermined torque. You may control.

  This will be described in detail below. In FIG. 8, by controlling the switches 153 and 154 to be turned on and the switch 155 to be turned off, the batteries 151 and 152 are connected in parallel, and one of the switches 153 and 154 and the switch 155 are turned on, and the other of the switches 153 and 154 is turned on. Is controlled to be turned off, so that the batteries 151 and 152 are connected in series.

  When the vehicle request torque is smaller than the predetermined torque, the control unit switches the switches 153 and 154 as described in the above embodiment. On the other hand, when the vehicle required torque is equal to or greater than the predetermined torque, the control unit controls the switch 155 to be turned on in addition to any of the switches 153 and 154, thereby connecting the batteries 151 and 152 in series. The predetermined torque is set to, for example, a torque required when the driver's accelerator depression amount is larger than an amount assumed in normal driving.

  In addition, when the SOC of each battery 150 decreases, the output power of each battery 150 decreases, and the rotating electrical machine 110 cannot generate the vehicle required torque with only the power supplied from one battery 150. In addition, the control unit may connect the batteries 150 in series.

  According to the above-described configuration, the power supplied from the battery 150 to the rotating electrical machine 110 can be increased by connecting a plurality of batteries 150 in series. Even if the power is reduced, appropriate power can be supplied to the rotating electrical machine 110.

  Further, when the vehicle required torque is large, etc., it is necessary to increase the step-up rate of converter 190 in order to increase the voltage supplied from battery 150 to the rotating electrical machine. However, a plurality of batteries 150 are connected in series. By increasing the output voltage of the battery 150, it is not necessary to increase the boosting rate of the converter 190.

  When connecting the batteries 150 in series, the control unit may serially connect the batteries having a charge state difference within a predetermined range among the plurality of batteries 150. Here, the state of charge of each battery 150 is the SOC of each battery 150, and a predetermined range (for example, a threshold value to be compared with the absolute value of the difference in the SOC of each battery 150) so that the SOC of each battery 150 does not become a distant value. ) Is set.

  Since each battery 150 connected in series supplies power to the rotating electrical machine 110 substantially equally, when the battery 150 having a low SOC and the battery 150 having a high SOC are connected in series, the battery 150 having a lower SOC than the battery 150 having a high SOC is connected. There is a possibility that the discharge permission power Wout will be reached first, and the subsequent power supply may be hindered. Therefore, it is preferable to reduce the time difference to reach the discharge permission power Wout as much as possible. For this reason, when the batteries 150 are connected in series, the batteries 150 having a charged state difference within a predetermined range are connected in series. is there.

  For example, three batteries (battery A, battery B, and battery C) are mounted on the plug-in hybrid vehicle, the predetermined range is set to 5 (%), and the SOC of the battery A is 60 (%). When the SOC of battery B is 57 (%) and the SOC of battery C is 40 (%), the control unit connects battery A and battery B in series.

  A voltage change caused by switching the battery 150 may be absorbed by changing the boosting rate of the converter 190.

  For example, when the output voltage of the detachable battery 151 is 200 (V), but the output voltage of the fixed installation battery 152 drops to 190 (V) due to a decrease in SOC or the like, the detachable battery 151 is fixed. When the battery is switched to the installed battery 152, the output voltage of the battery 150 decreases by 10 (V). However, by switching the boost rate of the converter 190 in accordance with the decrease in the output voltage after the switching of the battery 150, the switching of the battery 150 is performed. Thereafter, the output voltage of the battery 150 can be maintained at 200 (V).

  When the rotating electrical machine 110 and each battery 150 are connected in parallel via a plurality of switches (for example, switches 153 and 154) and the control unit detects any abnormality of the switches 153 and 154 or the battery 150, the switch that has detected the abnormality The paths may be switched so that the switches 153 and 154 other than 153 and 154 and the battery 150 and the battery 150 are connected in parallel.

  That is, the rotating electrical machine 110 and the plurality of batteries 150 are connected in parallel via a plurality of switching units, and the control unit detects an abnormality in any of the plurality of switching units or the battery 150, and an abnormality detection process. The switching unit in which the abnormality is detected by the switching unit or the switching unit other than the battery 150 and the switching unit may be executed so as to control the switching unit so that the battery 150 is connected in parallel.

  This will be described in detail below. The control unit is connected to the inverter 180 through the switch or the switch when the voltage supplied to the rotating electrical machine 110 is not detected even though the switch is turned on and connected to the battery 150. It is determined that the battery 150 is abnormal. And a control part switches a switch so that electric power feeding control or charge control may be performed with respect to other batteries 150 other than the battery 150 determined to be abnormal.

  According to the above-described configuration, it is possible to prevent the battery 150 that is in a state where power cannot be supplied to or cannot be charged from the rotating electrical machine 110 due to an abnormality of the switch or due to an abnormality of the battery itself as a power supply source or a charge destination. Can do.

  In addition, the control unit turns off the switch, and when the voltage supplied to the rotating electrical machine 110 is detected even though the connection with the battery 150 is disconnected, the control unit or the inverter 180 via the switch is detected. It is determined that the battery 150 connected to is abnormal. The control unit may maintain power supply control or charge control for the battery 150 connected to the inverter 180 via the switch.

  In this case, when switching to another battery 150, not only the battery 150 but also the other battery 150 is connected to the inverter 180. However, according to the above configuration, this can be prevented. .

  The control unit may detect whether or not the detachable battery 151 is set at a predetermined position of the vehicle, and may switch the path so as to include the detachable battery 151 when set.

  For example, a sensor as a setting detection unit for identifying whether or not the removable battery 151 is mounted is provided in the vicinity of the mounting position of the removable battery 151, and the control unit inputs a detection value of the sensor. To check whether or not the removable battery 151 is attached. When the removable battery 151 is attached, the switch 153 may be controlled to be turned on. However, when the removable battery 151 is not attached, the switch 153 is not controlled to be turned on. .

  That is, the control unit determines whether the specific battery is set when the battery is set at the predetermined position based on the detection value from the setting detection unit that detects whether the specific battery is set at the predetermined position of the vehicle. The switching unit in the current path may be controlled so that power is supplied to the rotating electrical machine 110, or the switching unit in the current path may be controlled so that the electric power generated by the rotating electrical machine 110 is charged to a specific battery.

  According to the above-described configuration, the removable battery 151 that has been removed can be prevented from being selected as a power supply source or a charging destination for the rotating electrical machine 110.

  In the above-described embodiment, the HV-ECU 171 causes the MG-ECU 174 to control the rotating electrical machine 110 so that the battery 150 is charged and discharged so that the SOC is within the range of the allowable charging power Win and the allowable discharging power Wout. Explained.

  However, in all of the plurality of batteries 150 mounted on the vehicle including the detachable battery 151 and the fixed installation battery 152, the SOC has reached the discharge permission power Wout, and the SOC cannot be lowered from the current value. Even in such a case, the HV-ECU 171 may be able to control the feeding of the rotating electrical machine 110 in the case of a predetermined condition. In other words, in the case of a predetermined condition, the HV-ECU 171 may be able to control the SOC of the battery 150 to be smaller than the discharge permission power Wout.

  Here, the predetermined condition is, for example, when the gasoline in the fuel tank runs out on an expressway or the like, and traveling by the engine 100 becomes impossible. If the vehicle stops in such a case, there is a risk of an accident, but the SOC of the battery 150 decreases below the discharge permission power Wout by running the rotating electrical machine 110 regardless of the SOC of the battery 150. Therefore, priority can be given to the safety of the vehicle occupant by maintaining the running of the vehicle over the risk of a decrease in the life of the battery 150.

  In the case of a predetermined condition, the control unit may switch the path so that the removable battery 151 is preferentially selected over the fixed installation battery 152 and the power supply control is performed on the rotating electrical machine 110.

  Specifically, in the above-described embodiment, the map data in FIG. 4A indicates that the switch 154 is displayed when the fixed battery 152 is smaller than the predetermined value 1 and the removable battery 151 is smaller than the predetermined value 3. Although the switch 153 is turned on and the switch 153 is turned off, the switch 153 may be turned on and the switch 154 may be turned off in a predetermined condition.

  According to the above-described configuration, priority is given to the safety of the vehicle occupant, and the SOC of the detachable battery 151 is made smaller than the SOC of the fixed installation battery 152 to increase the merit of removing and charging the detachable battery 151. it can.

  In the above-described embodiment, the case where one detachable battery 151 and one fixed installation battery 152 are mounted on the plug-in hybrid vehicle has been described, but the mounted battery 150 is not limited to such a combination.

  For example, any of the detachable battery 151 and the fixed installation battery 152 may be two or more, or both of the detachable battery 151 and the fixed installation battery 152 may be two or more, and there are two or more detachable batteries. Thus, the fixed installation battery 152 may not be mounted.

  In this case, which of the plurality of removable batteries 151 or the plurality of fixed installation batteries 152 to be preferentially selected is selected is determined based on a predetermined rule. For example, the control unit selects the battery with the highest SOC when the current control is power supply control, and selects the battery with the lowest SOC when the current control is charge control.

  Hereinafter, as an example, selection of a specific battery from the plurality of batteries 150 when a plurality of detachable batteries 150 are mounted on the plug-in hybrid vehicle will be described.

  A specific battery that can be removed from the vehicle and can be charged by a power source outside the vehicle among the plurality of batteries 150 is preset by the control unit from among the plurality of batteries 150, and a selection unit for the user to select a specific battery The control unit determines based on the time or number of times each of the plurality of batteries 150 is responsible for a specific battery, or the control unit determines in a predetermined order.

  This will be described in detail below. In the above-described embodiment, the electric power of a specific battery that can be detached from the vehicle is preferentially supplied to the motor 112, and the electric power generated by the generator 111 is preferentially charged to another battery fixedly installed in the vehicle. When a user finishes using a vehicle and takes a specific battery home for charging, the free capacity of the power of the specific battery is larger than that of the other battery, and the free capacity of the other battery is Less than.

  In other words, when the battery is removed from the vehicle while it is stopped and brought into an area (for example, a house) that is different from the stop area and charged by the power source of the house, most of the free capacity of all the batteries installed in the vehicle is a specific battery. Therefore, the amount of power used by the vehicle external power source can be increased.

  However, among the plurality of batteries as described above, a specific battery that can be attached to and detached from the vehicle and another battery that is fixedly installed on the vehicle are fixed in advance, and charge / discharge control of the battery 150 as described above is performed. As a result, the charge / discharge control time of a specific battery becomes longer than the charge / discharge control time of another battery, and there is a problem that a specific battery is more likely to deteriorate.

  Therefore, all of the plurality of batteries 150 are detachable from the vehicle, and among the detachable batteries, the user can arbitrarily remove the battery from the vehicle while the vehicle is stopped, and can be charged by a power source outside the vehicle, that is, If the configuration is such that a specific battery is selected, the charge / discharge time does not become longer due to the specific battery among the plurality of batteries, and the deterioration does not occur preferentially.

  As a method for the user to arbitrarily select, a specific battery is selected by the user turning on a dip switch, which is a selection unit provided near the setting position of the battery 150, and the user can turn it off. There is a method of selecting the battery.

  The on / off signal of the dip switch is directly input to the HV-ECU 171, and the HV-ECU 171 recognizes which of the plurality of batteries is a specific battery. In addition, as a means for the user to arbitrarily select, a user may select a specific battery among the plurality of batteries 150 on a touch panel that is a selection unit, a display unit of the navigation device, and an input unit. In this case, the HV-ECU 171 acquires and recognizes the selection result information from the navigation device via the in-vehicle network (for example, CAN).

  Alternatively, a configuration in which the HV-ECU 171 selects instead of allowing the user to make the selection may be employed.

  For example, the HV-ECU 171 accumulates the time for each of the plurality of batteries 150 in charge of a specific battery, and stores the accumulated time in the storage unit. Based on the accumulated time stored in the storage unit, the battery with the longest value obtained by subtracting the accumulated time of its own battery from the average time of the accumulated time of other batteries is set as the next specific battery for all of the plurality of batteries. assign.

  The HV-ECU 171 transmits information on the battery assigned to the specific battery to the navigation device via the in-vehicle network. The navigation device that has received the information displays the information on a touch panel, which is a display / input unit, to notify the user.

  In this embodiment, the specific battery selected by the HV-ECU 171 is selected based on the time for which the specific battery is assigned. It may be based on the order.

  In the above description, the case where the specific battery is determined by the user or the control unit of the HV-ECU 171 has been described. The determination of the specific battery is based on the control method described in the above embodiment. But the same is done.

  That is, in the control method described in the above-described embodiment, the specific battery that can be removed from the vehicle and charged by the power supply outside the vehicle among the plurality of batteries 150 is set in advance from the plurality of batteries 150. Determined by a signal from a selection unit for selecting a specific battery, determined based on the time or number of times each of the plurality of batteries 150 is responsible for the specific battery, or determined in a predetermined order It is.

  In the above-described embodiment, the case has been described in which the plug-in hybrid vehicle includes the HV-ECU 171, the battery ECU 172, the engine ECU 173, the MG-ECU 174, and the like. However, each ECU 170 may be integrated into a smaller number of ECUs 170, or the functions of each ECU 170 may be subdivided and divided into a larger number of ECUs 170. For example, the function of the battery ECU 172 may be included in the HV-ECU 171 and configured as one HV-ECU 171.

  Note that the above-described embodiment is merely an example of the present invention, and it is needless to say that the specific configuration of each block can be changed and designed as appropriate within the scope of the effects of the present invention.

Functional block diagram of plug-in hybrid vehicle Collinear diagram of power split mechanism Flowchart for explaining processing of HV-ECU (A) is explanatory drawing of switch output determination map data at the time of electric power feeding control, (b) is explanatory drawing of switch output determination map data at the time of charge control. Flowchart for explaining route switching by HV-ECU Timing chart showing first example of path switching by HV-ECU (A) is a timing chart showing a second example of route switching by the HV-ECU, and (b) is a timing chart showing a third example of route switching by the HV-ECU. Functional block diagram of a plug-in hybrid vehicle in which the rotating electrical machine and each battery are configured to be connected in parallel and in series via a switch

Explanation of symbols

110: Rotating electrical machine 111: Generator 112: Motor 150: Battery 151: Specific battery (detachable battery)
152: Other battery (fixed installation battery)
153, 154: switch 171: HV-ECU (electronic control unit)

Claims (12)

A control device for running a vehicle by controlling power feeding from a plurality of batteries mounted on the vehicle to a rotating electrical machine,
A storage unit for storing a battery charge state to be determined based on a detection value from a charge state detection unit provided in a plurality of batteries;
Based on the state of charge of the battery stored in the storage unit, it is selected which of the plurality of batteries is to be controlled for feeding to the rotating electrical machine, and the selection is performed by removing the plurality of batteries from the vehicle and A power supply battery selection process in which a specific battery that can be charged by a power supply is given priority over other batteries;
And a control unit that executes a switching control process for controlling the switching unit in the current path so that the electric power of the specific battery selected by the power supply battery selection process is supplied to the rotating electrical machine. A control device that controls power feeding from a plurality of batteries mounted on a vehicle to a rotating electrical machine for traveling to drive the vehicle, and controls charging of the power generated by the rotating electrical machine for power generation to the plurality of batteries,
A storage unit for storing a battery charge state to be determined based on a detection value from a charge state detection unit provided in a plurality of batteries;
Based on the battery charge state stored in the storage unit, it is selected which of the plurality of batteries should be charged with the electric power generated by the rotating electrical machine, and the selection is performed by removing the battery from the vehicle. A charging battery selection process that preferentially uses another battery over a specific battery that can be charged by a power source external to the vehicle;
And a control unit that executes a switching control process for controlling the switching unit in the current path so that another battery selected by the charging battery selection process is charged by the electric power generated by the rotating electrical machine. A control device that controls power feeding from a plurality of batteries mounted on a vehicle to a rotating electrical machine for traveling to drive the vehicle, and controls charging of the power generated by the rotating electrical machine for power generation to the plurality of batteries,
A storage unit for storing a battery charge state determined by a detection value from a charge state detection unit included in a plurality of batteries;
Based on the state of charge of the battery stored in the storage unit, it is selected which of the plurality of batteries is to be controlled for feeding to the rotating electrical machine, and the selection is performed by removing the plurality of batteries from the vehicle and A power supply battery selection process in which a specific battery that can be charged by a power supply is given priority over other batteries;
Based on the state of charge of the plurality of batteries stored in the storage unit, it is selected which of the plurality of batteries should be charged with the power generated by the rotating electrical machine, and the selection is different from the specific battery. Charging battery selection processing for preferentially using the battery,
The switching unit in the current path is controlled so that the power of the specific battery selected by the power supply battery selection process is supplied to the rotating electrical machine, or another battery selected by the charging battery selection process is And a control unit that executes a switching control process for controlling the switching unit in the current path so as to be charged by the generated power.   4. The vehicle traveling state detected by the traveling state detection unit is stored in the storage unit, and the control unit controls the switching unit when the vehicle traveling state stored in the storage unit varies. A control device according to claim 1.   The control device according to claim 4, wherein the traveling state includes any of vehicle required torque, accelerator operation, brake operation, transmission operation, steering operation, vehicle speed, acceleration, or traveling environment.   The switching unit can switch the current path so that the rotating electrical machine and a plurality of batteries are connected in parallel and in series. The control device according to claim 1, wherein power supply control is performed for the rotating electrical machine by connecting in series.   The control device according to claim 6, wherein the control unit serially connects batteries having a difference in charge state within a predetermined range among the plurality of batteries.   The rotating electrical machine and a plurality of batteries are connected in parallel via a plurality of switching units, and the control unit detects an abnormality by detecting an abnormality of the plurality of switching units or the battery, and the abnormality detection processing. The control device according to any one of claims 1 to 7, wherein an abnormal time switching control process is performed to control the switching unit such that the switching unit or the switching unit other than the battery and the battery are connected in parallel.   Based on the detection value from the setting detection unit that detects whether or not the specific battery is set at a predetermined position of the vehicle, the control unit rotates from the specific battery when the battery is set at the predetermined position. The switching unit in the current path is controlled so as to control the switching unit in the current path so that power is supplied to the electric machine, or the specific battery is charged with the electric power generated by the rotating electric machine. The control device described in 1. A control method for controlling power feeding from a plurality of batteries mounted on a vehicle to a rotating electric machine for traveling to drive the vehicle, and charging control of electric power generated by the rotating electric machine for power generation to the plurality of batteries,
Based on the battery charge state determined by the detection value from the charge state detection unit provided in the plurality of batteries, it is selected which of the plurality of batteries is to be controlled for feeding to the rotating electrical machine, A power supply battery selection step that preferentially takes a specific battery that can be removed from the vehicle and rechargeable by a power source outside the vehicle over other batteries;
Based on the battery charge state determined by the detection value from the charge state detection unit provided in the plurality of batteries, it is selected which of the plurality of batteries should be charged with the electric power generated by the rotating electrical machine, and the selection is A charging battery selection step that preferentially uses another battery over a specific battery;
The rotating electrical machine generates power from another battery selected in the charging battery selection step, or the switching unit in the current path is controlled so that the specific battery selected in the feeding battery selection step is fed to the rotating electrical machine. A control method for executing a switching control step for controlling a switching unit in a current path so as to be charged by electric power.   The specific battery that can be removed from the vehicle and charged by the power supply outside the vehicle is set in advance by a signal from the selection unit for the user to select the specific battery. The control device according to any one of claims 1 to 9, wherein the determination is made based on a time or number of times each of the plurality of batteries is in charge of a specific battery, or in a predetermined order.   The specific battery that can be removed from the vehicle and charged by the power supply outside the vehicle is set in advance by a signal from the selection unit for the user to select the specific battery. The control method according to claim 10, wherein the determination is made based on a time or number of times each of the plurality of batteries takes charge of a specific battery, or in a predetermined order.

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