JP7368099B2 - Vehicle control device and vehicle control method - Google Patents

Description

The present invention relates to a vehicle control device and a vehicle control method for controlling a vehicle equipped with a vehicle body having a motor as a driving power source and a temperature control device capable of adjusting the temperature of a luggage compartment of the vehicle body.

As one type of vehicle equipped with a motor as a driving power source, there is a vehicle equipped with a temperature control device mounted on the vehicle body that can adjust the temperature of the luggage compartment by supplying electricity even while the vehicle is in motion. . In such a vehicle, electric power is supplied to the motor and the temperature control device from a common battery, and the supply of electric power to the motor and the temperature control device is controlled by a vehicle control device, for example, as in Patent Document 1. The vehicle control device controls the supply of electric power to the motor and the temperature control device within a range that is equal to or less than the allowable output of the battery.

Japanese Patent Application Publication No. 2011-160613

In the above-mentioned vehicles, power is supplied to the temperature control device even while the vehicle is moving, so compared to mounted vehicles that are equipped with devices that are not used while the vehicle is moving, such as cranes, it is easier to move the vehicle. During this period, the battery output often reaches the allowable output. When the output of the battery reaches the allowable output, the degree of freedom in supplying power to the motor decreases, which may reduce the driving performance of the vehicle body.

The present invention provides a vehicle equipped with a vehicle body that has a motor as a driving power source and a temperature control device that can adjust the temperature of the luggage compartment of the vehicle body, even if the battery output reaches the allowable output while the vehicle is moving. It is an object of the present invention to provide a vehicle control device and a vehicle control method that can suppress deterioration in driving performance of a vehicle body.

A vehicle control device that solves the above problem is a vehicle control device that is installed in a vehicle that has a vehicle body that has a motor as a driving power source and a temperature control device that can adjust the temperature of a luggage compartment of the vehicle body, a power control unit that controls power supplied from the battery to the motor and power supplied from the battery to the temperature control device; and a power control unit that controls the power supplied to the motor and the temperature control device; an output acquisition unit that acquires the output as the output of the battery, and the power control unit maintains the allowable output of the battery and acquires the output of the battery when power is being supplied to both the motor and the temperature control device. When the temperature reaches the permissible output, the power supplied to the temperature control device is reduced.

A vehicle control method for solving the above problems is a method for controlling a vehicle that includes a vehicle body having a motor as a driving power source and a temperature control device capable of adjusting the temperature of a luggage compartment of the vehicle body, the vehicle comprising: a vehicle control device that controls power supplied from a battery to the motor and power supplied from the battery to the temperature control device; the vehicle control device controls power supply to the motor and power supply to the temperature control device; The total with the electric power is obtained as the output of the battery, and when the output of the battery reaches the allowable output of the battery while power is being supplied to both the motor and the temperature control device, the output to the temperature control device is obtained. Reduce power supply.

According to the above configuration, when the output of the battery reaches the allowable output, the power supplied to the temperature control device is reduced. Therefore, the degree of freedom in supplying power to the motor can be increased by the amount of decrease in power supplied to the temperature control device. As a result, even if the output of the battery reaches the allowable output while the vehicle is running, it is possible to suppress a decrease in the running performance of the vehicle body.

The vehicle control device configured as described above includes a temperature acquisition unit that acquires a battery temperature that is the temperature of the battery, and the power control unit maintains a table in which the allowable output is defined for each battery temperature, and the power control unit maintains a table in which the allowable output is defined for each battery temperature. The allowable output may be set based on the battery temperature and the table.

According to the above configuration, since the permissible output is set according to the battery temperature, it is possible to suppress a decrease in driving performance while maintaining the battery output below the permissible output according to the battery temperature.

In the vehicle control device configured as described above, the vehicle is a hybrid vehicle having the motor and the engine as a driving power source, and the vehicle control device has an idling stop function that stops the engine when the vehicle is stopped. , the power control unit may reduce power supplied to the temperature control device when restarting the engine.

According to the above configuration, the degree of freedom in supplying power to the motor can be increased by reducing the power supplied to the temperature control device when restarting the engine. As a result, the amount of motor assistance for restarting the engine can be more reliably secured.

In the vehicle control device configured as described above, the power control unit controls the power supply to the temperature control device if the restart of the engine is not completed when the normally required time has elapsed from the start of the restart of the engine. may be decreased.

According to the above configuration, the power supplied to the temperature control device is reduced only when restarting the engine is not completed even after the normally required time has elapsed since restarting the engine was started. As a result, the temperature control performance of the temperature control device is easily maintained while ensuring the amount of motor assistance for restarting the engine.

1 is a diagram showing a schematic configuration of a refrigerated vehicle equipped with an embodiment of a vehicle control device. FIG. 1 is a block diagram showing an example of an electrical configuration of a refrigerated vehicle. FIG. 3 is a diagram schematically showing an example of an allowable output table. 5 is a flowchart illustrating an example of selection processing. 5 is a flowchart illustrating an example of startup processing. (a) A diagram showing an example of the relationship between the battery output and the running power of the refrigerated vehicle in a comparative example, and (b) a diagram showing an example of the relationship between the battery output and the running power of the refrigerated vehicle in the example. (a) A diagram showing an example of changes in the battery output and the power supplied to the refrigerator when the engine restart is completed before the normally required time elapses, (b) The engine restart is completed before the normally required time elapses. The figure which shows an example of the transition of the battery output and the electric power supplied to a refrigerator when restart is not completed.

An embodiment of a vehicle control device and a vehicle control method will be described with reference to FIGS. 1 to 7.
As shown in FIG. 1, the vehicle 10 includes a vehicle main body 11 having a loading platform, and a refrigerator 60 that serves as a temperature control device to adjust the temperature of the luggage compartment, which is an internal space of the loading platform, to maintain the luggage compartment at a low temperature. It is a vehicle. The vehicle body 11 is a hybrid vehicle that includes an engine 12 and a motor generator (hereinafter referred to as M/G) 13 as a driving power source.

A rotating shaft 14 of the engine 12 and a rotating shaft 15 of the M/G 13 are connectably and disconnectably connected by a clutch 16 . The M/G 13 is connected to drive wheels 19 via a transmission 17, a drive shaft 18, and the like.

The engine 12 is, for example, a diesel engine, a gasoline engine, or a gas engine, and rotates the rotating shaft 14 by burning a mixture of fuel and air.
The M/G 13 is electrically connected to a battery 20 via an inverter 21. Battery 20 is an energy source for M/G 13 and refrigerator 60. The battery 20 is a rechargeable and dischargeable secondary battery, and is composed of a plurality of cells that are electrically connected to each other. The M/G 13 functions as a motor that assists the engine 12 by rotating the rotating shaft 15 and the drive shaft 18 by supplying electric power stored in the battery 20 via the inverter 21 . Motor torque generated when the M/G 13 functions as a motor is transmitted to the drive wheels 19 via the transmission 17 and the drive shaft 18. Further, the M/G 13 functions as a generator that stores electric power generated by using the rotation of the rotating shaft 15 when the accelerator is off, in the battery 20 via the inverter 21, for example.

The transmission 17 shifts the torque of the rotating shaft 15 of the M/G 13, and transmits the shifted torque to the drive wheels 19 via the drive shaft 18. The transmission 17 is configured to be able to set a plurality of speed ratios.

When the M/G 13 functions as a motor, the inverter 21 converts the DC voltage from the battery 20 into a three-phase AC voltage and supplies it to the M/G 13. Further, when the M/G 13 functions as a generator, the inverter 21 converts the three-phase AC voltage from the M/G 13 into a DC voltage, supplies it to the battery 20, and charges the battery 20.

The vehicle 10 has an accelerator opening sensor 31 , a brake opening sensor 32 , an engine rotation speed sensor 33 , a vehicle speed sensor 34 , a shift position sensor 35 , a battery output sensor 36 , and a battery temperature sensor 37 .

The accelerator opening sensor 31 detects the accelerator opening, which is the amount of operation of the accelerator pedal 41 by the driver. The brake opening sensor 32 detects the brake opening, which is the amount of operation of the brake pedal 42 by the driver. The engine rotation speed sensor 33 detects the engine rotation speed, which is the rotation speed of the rotating shaft 14 of the engine 12. Vehicle speed sensor 34 detects vehicle speed based on the rotation speed of drive shaft 18 . The shift position sensor 35 detects the shift position, which is the operating position of the shift lever 43 that operates the transmission 17. The battery output sensor 36 is provided in an electric circuit 44 that connects the battery 20 and the inverter 21. The battery output sensor 36 detects the voltage of the battery 20 and the charging/discharging current of the battery 20, and detects the battery output W based on the voltage and charging/discharging current. Battery temperature sensor 37 detects battery temperature T, which is the temperature of battery 20. Each of the sensors 31 to 37 outputs a signal indicating the detected value to the vehicle control device 50, which is a control device that centrally controls the vehicle 10, via an in-vehicle network (not shown).

The vehicle body 11 also includes an IS switch 45, which is one of the switches that can be operated by the driver, and can turn on/off the idling stop function. Each time the IS switch 45 is turned on and off by the driver, it outputs an operation signal to the vehicle control device 50 via an in-vehicle network (not shown).

The vehicle control device 50 is mainly configured with one or more ECUs (Electronic Control Units) each including a microcomputer, etc., in which a processor, a memory 51, an input interface, an output interface, etc. are connected to each other via a bus. Ru. Vehicle control device 50, as an acquisition unit, acquires various information output from various sensors 31 to 37 and IS switch 45. The vehicle control device 50 controls the vehicle 10 in an integrated manner by executing various processes based on the acquired various information and the control programs and various data stored in the memory 51.

Refrigerator 60 has a driving state (on) and a resting state (off). The refrigerator 60 in the operating state maintains the temperature of the luggage compartment at a target temperature (for example, -18° C.). The refrigerator 60 is supplied with electric power from the battery 20 through a branch circuit 61 branched from between the inverter 21 and the battery output sensor 36 in the electric circuit 44 . The battery output sensor 36 detects the sum of the power supplied to the M/G 13 and the power supplied to the refrigerator 60 as the battery output W. The refrigerator 60 has a compressor (not shown) that is driven by power supplied from the battery 20. The refrigerator 60 has a condenser and an evaporator in addition to a compressor (not shown), and the refrigerant compressed by the compressor is liquefied in the condenser, and when the liquefied refrigerant is evaporated in the evaporator, heat is taken away. to lower the temperature of the luggage compartment.

As shown in FIG. 2, the refrigerator 60 includes a refrigerator ECU 62 and a refrigerator inverter 63. The refrigerator ECU 62 is electrically connected to the vehicle control device 50 via an in-vehicle network (not shown). The refrigerator ECU 62 switches the refrigerator 60 between a driving state and a rest state based on a control signal input from the vehicle control device 50. The refrigerator ECU 62 is composed of a microcomputer, etc., in which a processor, memory, input interface, output interface, etc. are connected to each other via a bus. The refrigerator ECU 62 in the driving state, for example, obtains the temperature of the luggage compartment and controls the refrigerator inverter 63 by feedback control based on the deviation between the temperature of the luggage compartment and the target temperature, thereby controlling the supply to the compressor (not shown). Control power.

The control of the vehicle control device 50 while the vehicle 10 is moving will be described in more detail with reference to FIGS. 2 to 7. Here, "while the vehicle is moving" means the movement of the vehicle 10 from the current position to the destination, and includes stops due to traffic lights, traffic jams, etc. in addition to normal driving.

As shown in FIG. 2, the vehicle control device 50 is configured to be able to execute the idling stop function when the IS switch 45 is in the ON state. In the idling stop function, the vehicle control device 50 stops the engine 12 when a stop condition set regarding, for example, the accelerator opening, the brake opening, the vehicle speed, the charging rate of the battery 20, etc. is satisfied. Further, the vehicle control device 50 restarts the engine 12 when restart conditions set regarding, for example, the accelerator opening, the brake opening, the operation of the shift lever 43, the charging rate of the battery 20, etc. are satisfied. The vehicle control device 50 controls the output of the engine 12 according to the state of the engine 12 due to the idling stop function, and also controls the output of the M/G 13 and the on/off of the refrigerator 60 as a power control section. Note that the vehicle control device 50 calculates the charging rate of the battery 20 from the integrated value of the charging and discharging current of the battery 20 based on the detection signal from the battery output sensor 36.

(When the engine 12 is in the driving state)
The vehicle control device 50 calculates a torque request from the driver based on the accelerator opening degree and the engine rotation speed. The vehicle control device 50 calculates the engine command torque based on the detected values of various sensors, and sets the motor command torque based on the calculated engine command torque and the required torque.

Vehicle control device 50 holds in memory 51 an optimal map showing the combustion efficiency of engine 12 for each engine speed and engine torque. The vehicle control device 50 calculates, as the engine instruction torque, an engine torque with the highest combustion efficiency of the engine 12 at the current engine rotation speed, or an engine torque close to the value with the highest combustion efficiency, with the required torque as the upper limit value. . The vehicle control device 50 controls the fuel injection amount, injection timing, etc. so that the torque acting on the rotating shaft 14 of the engine 12 becomes the engine command torque.

If the battery output W based on the detection signal of the battery output sensor 36 has not reached the allowable output W1, the vehicle control device 50 calculates a value obtained by subtracting the engine command torque from the required torque as the motor command torque. When the battery output W has reached the allowable output W1, the vehicle control device 50 calculates the current motor instruction torque using the previous motor instruction torque as the upper limit. The vehicle control device 50 controls the inverter 21 so that the torque acting on the rotating shaft 15 of the M/G 13 becomes the motor command torque.

As shown in FIG. 3, the allowable output W1 is the power that the battery 20 can output at any given time. The vehicle control device 50 has an allowable output table 52 in a predetermined area of the memory 51, in which the allowable output W1 of the battery 20 according to the battery temperature T is defined. In the allowable output table 52, a value that changes depending on the battery temperature T between the minimum operating temperature Tmin and the maximum operating temperature Tmax is defined as the allowable output W1. Specifically, the allowable output W1 increases as the battery temperature T rises from the allowable output W11 corresponding to the minimum operating temperature Tmin, and eventually reaches the maximum allowable output W12. After the allowable output W1 is maintained at the maximum allowable output W12, it changes to approximately 0 at the maximum operating temperature Tmax. The vehicle control device 50 applies the battery temperature T acquired from the battery temperature sensor 37 to the allowable output table 52 to obtain the allowable output W1 according to the battery temperature T.

As shown in FIG. 4, when the engine 12 is in the driving state, the vehicle control device 50 repeatedly executes a selection process for selecting a control method for the refrigerator 60.
In the selection process, the vehicle control device 50 acquires the battery temperature T based on the detection signal of the battery temperature sensor 37 (step S101). The vehicle control device 50 applies the obtained battery temperature T to the allowable output table 52 to obtain the allowable output W1 of the battery 20 according to the battery temperature T (step S102).

The vehicle control device 50 acquires the battery output W based on the detection signal of the battery output sensor 36, and determines whether the acquired battery output W has reached the allowable output W1 selected in step S102 (step S103). If the battery output W has not reached the allowable output W1 (step S103: YES), the vehicle control device 50 outputs a drive signal for controlling the refrigerator 60 to the driving state (on) to the refrigerator ECU 62 (step S104). ), the series of processing ends once. The refrigerator ECU 62 to which the drive signal has been input drives the refrigerator inverter 63 so that the temperature of the luggage compartment reaches the target temperature.

If the battery output W has reached the allowable output W1 (step S103: NO), the vehicle control device 50 outputs a suspension signal to the refrigerator ECU 62 to control the refrigerator 60 to a rest state (off) (step S105). ), the series of processing ends once.

The refrigerator ECU 62 to which the pause signal has been input controls the refrigerator inverter 63 to cut off the supply of power from the battery 20 to the refrigerator 60, and controls the refrigerator 60 to be in a dormant state. As a result, the battery output W decreases by the amount of power supplied from the battery 20 to the refrigerator 60, so the amount of power that can be supplied to the M/G 13 increases by the amount of the decrease.

Note that the refrigerator ECU 62 to which the suspension signal is input may be configured to control the refrigerator 60 to be in a halt state for a predetermined period of time. In this case, the battery output W may exceed the allowable output W1 for a certain period of time, based on the results of experiments and simulations conducted in advance, even if the temperature control of the luggage compartment by the refrigerator 60 is restarted after a certain period of time has elapsed. It is best to set it at a time when traffic is low. Further, the vehicle control device 50 may wait to execute the selection process until a certain period of time has elapsed. According to this configuration, since the refrigerator 60 is stopped for a certain period of time when the battery output W reaches the allowable output W1, the degree of freedom in supplying power to the M/G 13 can be increased with a simple control configuration. .

Furthermore, the refrigerator ECU 62 to which the stop signal is input may be configured to control the refrigerator 60 to be in a rest state until a drive signal is input from the vehicle control device 50. In such a case, the vehicle control device 50 may be configured to output a drive signal when the difference between the allowable output W1 of the battery 20 and the battery output W based on the detection signal of the battery output sensor 36 reaches a predetermined electric power. . As the predetermined electric power, for example, electric power required to fully open the refrigerator 60 can be mentioned. Further, the effect that the temporary stoppage of the refrigerator 60 has on the temperature drop in the luggage compartment becomes more limited as the temperature in the luggage compartment becomes more stable, that is, the temperature control period by the refrigerator 60 becomes longer. Therefore, the predetermined power may be configured to be smaller as the immediately preceding temperature control period is longer, that is, as the power required to control the luggage compartment to the target temperature at the time of re-driving is smaller. According to such a configuration, when the battery output W reaches the allowable output W1, the refrigerator 60 is stopped according to the power required for re-driving, so the amount of power required for re-driving the refrigerator 60 is taken into consideration. At the same time, the degree of freedom in supplying power to the M/G 13 can be increased.

(When the engine 12 is in a stopped state)
When the engine 12 is in the stopped state, the vehicle control device 50 cuts off the power supply to the M/G 13 and controls the refrigerator 60 to be in the driving state.

(When restarting engine 12)
When restarting the engine 12, the vehicle control device 50 controls the clutch 16 to be in the connected state and executes a process for starting the engine 12.

As shown in FIG. 5, in the starting process, the vehicle control device 50 acquires the battery temperature T based on the detection signal of the battery temperature sensor 37 (step S201). The vehicle control device 50 applies the obtained battery temperature T to the allowable output table 52 to obtain the allowable output W1 of the battery 20 according to the battery temperature T (step S202). Then, the vehicle control device 50 starts supplying power to the M/G 13, and controls the power supplied to the M/G 13 within a range where the battery output W is equal to or less than the allowable output W1.

In the next step S203, the vehicle control device 50 determines whether or not the normally required time A has elapsed since the start of the startup process. The normally required time A is the time required for restarting the engine 12 to be completed smoothly. The vehicle control device 50 stores the normally required time A in a predetermined area of the memory 51. For example, the vehicle control device 50 determines that starting of the engine 12 has been completed on the condition that the engine speed has reached the idling speed.

If the restart of the engine 12 is not completed when the normally required time has elapsed from the start of the restart of the engine 12 (step S203: YES), the vehicle control device 50 outputs a stop signal to the refrigerator 60. The refrigerator 60 is controlled to be in a rest state. After that, when the vehicle control device 50 detects the completion of restarting the engine 12 (step S205), it outputs a drive signal to the refrigerator 60 to control the refrigerator 60 to the driving state (step S206), and starts the startup process. finish.

On the other hand, if the vehicle control device 50 detects the restart of the engine 12 before the normally required time has elapsed from the start of the restart of the engine 12 (step S203: NO), the vehicle control device 50 immediately ends the startup process. At this time, the refrigerator 60 is maintained in a driving state.

(effect)
The operation of the vehicle control device 50 described above will be explained with reference to FIGS. 6 and 7.
FIGS. 6(a) and 6(b) are diagrams showing an example of changes in battery output W, electric power Wf supplied to refrigerator 60, and running power P of vehicle 10 when engine 12 is in a driving state. It is. FIG. 6A shows an example of the results of a simulation performed in the vehicle 10 described above on the condition that the driving state of the refrigerator 60 is maintained when the battery output W reaches the allowable output W1. FIG. 6(b) shows an example of the results of a simulation performed in the above-described vehicle 10 on the condition that the refrigerator 60 is controlled to be in a rest state when the battery output W reaches the allowable output W1. Note that the running power P is the total value of the output of the engine 12 and the output of the M/G 13.

In the case shown in FIG. 6(a), the driving power P increases and the refrigerator 60 is maintained in the driving state even if the battery output W reaches the allowable output W1 at time t1, so the motor output cannot be increased. I can't. Therefore, the running power P cannot be increased to the necessary power P1 necessary to satisfy the required torque, and the running performance deteriorates.

On the other hand, in the case shown in FIG. 6(b), when the battery output W reaches the allowable output W1 at time t1, the refrigerator 60 is controlled to be in a dormant state, so the motor is Output can be increased. Therefore, it becomes possible to increase the running power P to the required power P1 in order to satisfy the required torque, and it is possible to suppress a decrease in running performance. Thereafter, at time t2, as the running power P decreases and the battery output W becomes available, the refrigerator 60 is controlled to be in the driving state.

FIGS. 7A and 7B are diagrams showing an example of changes in the battery output W and the power Wf supplied to the refrigerator 60 when the engine 12 is restarted. FIG. 7(a) shows an example in which the restart of the engine 12 is completed within the normally required time, and FIG. 7(b) shows an example in which the restart of the engine 12 is not completed even after the normally required time has elapsed. An example of a case is shown below.

As shown in FIG. 7(a), restart of the engine 12 is started at time t6, and before time t8, when the normally required time A has elapsed, the battery reaches the required output W2 required for restarting the engine 12. Output W increases. As a result, completion of restarting the engine 12 is detected at time t7, which is earlier than time t8. In this case, the refrigerator 60 is maintained in a driving state without being controlled to be in a rest state. Note that the battery output W may be controlled to increase to the allowable output W1 (>W2).

As shown in FIG. 7(b), if the restart of the engine 12 is started at time t6 and the restart of the engine 12 is not completed at time t8, when the normally required time A has elapsed, the refrigerator 60 is temporarily stopped. controlled by the state. This increases the degree of freedom and responsiveness regarding the battery output W, and reduces the time required for the battery output W to rise to the required output W2 required for restarting the engine 12. Thereafter, when the completion of restarting the engine 12 is detected at time t9, the refrigerator 60 is controlled to be in the driving state.

The effects of this embodiment will be explained.
(1) Vehicle control device 50 reduces the power supplied to refrigerator 60 when battery output W reaches allowable output W1. According to such a configuration, the degree of freedom in supplying power to the M/G 13 is increased by the amount of decrease in power supplied to the refrigerator 60. As a result, even if the battery output W reaches the allowable output W1 while the vehicle is running, it is possible to suppress a decrease in the running performance of the vehicle 10.

(2) Vehicle control device 50 cuts off power supply to refrigerator 60 when battery output W reaches allowable output W1. According to such a configuration, the degree of freedom in supplying power to the M/G 13 is further increased, and the remaining power of the battery output W is increased, so that the responsiveness of the output of the battery 20 can also be improved.

(3) When the allowable output W1 is a constant value, the value needs to be set to the smallest value among the allowable outputs based on the battery temperature T. In this regard, the vehicle control device 50 sets the allowable output W1 according to the battery temperature T. According to such a configuration, the frequency with which the refrigerator 60 is controlled to be in a rest state is reduced, and a decrease in the temperature control performance of the refrigerator 60 can be suppressed while suppressing a decrease in the driving performance of the vehicle body 11.

(4) The vehicle control device 50 is configured to be able to reduce the power supplied to the refrigerator 60 when the engine 12 is restarted. According to such a configuration, the degree of freedom regarding power supply to the M/G 13 is increased, so that the assist amount of the M/G 13 for restarting the engine 12 can be more reliably secured.

(5) Vehicle control device 50 stops power supply to refrigerator 60 if starting of engine 12 is not completed when the normally required time A has elapsed since starting of engine 12. According to such a configuration, the degree of freedom and responsiveness regarding the battery output W are increased, and the time required for the battery output W to rise to the required output W2 required for restarting the engine 12 can be shortened. . Further, the refrigerator 60 is not stopped excessively, and the temperature control performance of the refrigerator 60 is easily maintained.

(6) While the vehicle 10 is moving, the mechanical load on the clutch 16 is reduced by assisting the engine 12 by the M/G 13. As a result, deterioration of the clutch 16 caused by mechanical loads can be suppressed.

This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- The vehicle control device 50 may be configured to always maintain the refrigerator 60 in a driving state when the engine 12 is restarted. Even with such a configuration, the time required to restart the engine 12 becomes longer, but the engine 12 does not become unable to restart.

- The vehicle control device 50 may be configured to always control the refrigerator 60 to be in a rest state when the engine 12 is restarted.
- The vehicle control device 50 is not limited to a configuration in which the refrigerator 60 is stopped when the engine 12 is restarted, but may be configured to reduce the power supplied to the refrigerator 60.

- The vehicle control device 50 may maintain the allowable output W1 of the battery 20 as a constant value. The allowable output W1 in this case is set to the smallest value among the allowable outputs of the battery 20.

- The vehicle control device 50 is not limited to a configuration that stops the refrigerator 60 when the battery output W reaches the allowable output W1, but may have a configuration that reduces the power supplied to the refrigerator 60.
- The rest state of the refrigerator 60 may include a configuration in which a small amount of power is supplied to the refrigerator 60.

- The allowable output W1 of the battery 20 may be a value that depends not only on the battery temperature T but also on the charging rate of the battery 20. In this configuration, the memory 51 stores an allowable output map in which the allowable output W1 is defined for each battery temperature T and charging rate of the battery 20. For the same battery temperature T, the higher the charging rate is, the larger the allowable output W1 is defined as the allowable output W1.

- The vehicle may be an electric vehicle having only the M/G 13 as a driving power source.
・The temperature control device may be any device that can maintain a constant temperature in the luggage compartment. Therefore, the temperature control device is not limited to the refrigerator 60, but may be an air conditioner that maintains the temperature of the luggage compartment at, for example, about 25°C, or a temperature controller that maintains the liquid stored in the luggage compartment at a constant temperature. It can also be a machine.

DESCRIPTION OF SYMBOLS 10... Vehicle, 11... Vehicle body, 12... Engine, 13... Motor generator, 14, 15... Rotating shaft, 16... Clutch, 17... Transmission, 18... Drive shaft, 19... Drive wheel, 20... Battery, 21... Inverter , 31...Accelerator opening sensor, 32...Brake opening sensor, 33...Engine speed sensor, 34...Vehicle speed sensor, 35...Shift position sensor, 36...Battery output sensor, 37...Battery temperature sensor, 41...Accelerator pedal, 42... Brake pedal, 43... Shift lever, 44... Electric circuit, 45... IS switch, 50... Vehicle control device, 51... Memory, 52... Allowable output table, 60... Freezer, 61... Branch circuit, 62... Freezer ECU, 63... Refrigerator inverter.

Claims (3)

A vehicle control device installed in a hybrid vehicle, comprising a vehicle body having a motor and an engine as a driving power source, and a temperature control device capable of adjusting the temperature of a luggage compartment of the vehicle body,
a power control unit that controls power supplied from a battery to the motor and power supplied from the battery to the temperature control device;
an output acquisition unit that acquires the sum of power supplied to the motor and power supplied to the temperature control device as an output of the battery,
The power control unit maintains an allowable output of the battery, and when the output of the battery reaches the allowable output while power is being supplied to both the motor and the temperature controller, the power controller controls the power to the temperature controller. In addition to reducing the power supply ,
The vehicle control device has an idling stop function that stops the engine when the hybrid vehicle is stopped;
The power control unit is configured to supply power to the temperature control device when restarting the engine, if the restart of the engine is not completed even after a normally required time has elapsed from the start of the restart of the engine. reduce power
Vehicle control device. a temperature acquisition unit that acquires a battery temperature that is the temperature of the battery;
The vehicle control device according to claim 1, wherein the power control unit holds a table in which the allowable output is defined for each battery temperature, and sets the allowable output based on the battery temperature and the table. A method for controlling a hybrid vehicle comprising a vehicle body having a motor and an engine as a driving power source, and a temperature control device capable of adjusting the temperature of a luggage compartment of the vehicle body, the method comprising:
The hybrid vehicle includes a vehicle control device having an idling stop function that controls power supplied from the battery to the motor and power supplied from the battery to the temperature control device, and stops the engine when the hybrid vehicle is stopped. Prepare,
The vehicle control device includes:
The total of the power supplied to the motor and the power supplied to the temperature control device is obtained as the output of the battery, and when power is being supplied to both the motor and the temperature control device, the output of the battery is When the permissible output of the battery is reached, the power supplied to the temperature control device is reduced, and when the engine is restarted, the engine is restarted even if the normally required time has elapsed from the start of the engine restart. Decrease the power supplied to the temperature control device when the start-up is not completed.
Vehicle control method.