JP2020145796A - On-vehicle control device, on-vehicle control program and electric power supply system - Google Patents

Abstract

To extend a time during which electric power can be supplied.SOLUTION: An on-vehicle control device includes: an electric power supply control unit which starts supply of electric power to a load from a battery after acquiring an electric power supply instruction signal instructing supply of electric power to the load from the battery, executes the supply of electric power to the load from the battery when a charging ratio of the battery exceeds a prescribed first threshold value, and stops supply of electric power to the load from the battery when the charging ratio of the battery is less than the first threshold value; and an electric power control unit which, after a power generation permission signal that permits a power generation system to generate electric power and to supply the electric power to the load is obtained, makes the power generation system start to generate electric power and supply the electric power to the load, makes the electric power generation system continue to generate electric power and supply the electric power to the load when the charging ratio of the battery is less than a prescribed second threshold value, and makes the power generation system stop generating electric power and supplying the electric power to the load when the charging ratio of the battery exceeds the second threshold value.SELECTED DRAWING: Figure 1

Description

The present invention relates to an in-vehicle control device, an in-vehicle control program, and a power supply system.

Currently, electric vehicles (EVs), hybrid vehicles, and plug-in hybrids (PHVs) that are designed to supply power to loads that exist outside the vehicle. Vehicles), fuel cell vehicles (FCVs), etc. are being developed.

For example, Patent Document 1 discloses a hybrid vehicle configured to enable external power supply to supply electric power to the outside of the vehicle. This hybrid vehicle includes an internal combustion engine, a power storage device, a generator, and a control device. The generator uses the output of the internal combustion engine to generate electricity. The control device controls the internal combustion engine and the generator so that the charge rate (SOC: State of Charge) of the power storage device is maintained at a predetermined target value, and the remaining amount of fuel in the internal combustion engine is reduced during execution of external power supply. When the amount falls below the predetermined reference amount, the target value is set smaller than when the remaining amount of fuel does not fall below the reference amount.

Japanese Unexamined Patent Publication No. 2015-186985

However, although this hybrid vehicle can save fuel for the internal combustion engine, it lowers the charging rate of the power storage device, so that the time during which electric power can be supplied to the outside of the vehicle may be shortened. is there.

Therefore, an object of the present invention is to provide an in-vehicle control device, an in-vehicle control program, and a power supply system capable of prolonging the time during which electric power can be supplied.

One aspect of the present invention is a power supply instruction acquisition unit that acquires a power supply instruction signal instructing power to be supplied from the battery to the load, and after the power supply instruction signal is acquired, the battery transfers the power to the load. When the power supply is started and the charge rate of the battery exceeds a predetermined first threshold value, the power supply from the battery to the load is executed, and the charge rate of the battery is equal to or lower than the first threshold value. In some cases, a power supply control unit that stops the supply of power from the battery to the load, and a power generation permit that allows the power generation system to generate power and supply power from the power generation system to the load. The power generation permission acquisition unit that acquires the signal, and after the power generation permission signal is acquired, the power generation system is started to generate power and supply power to the load, and the charge rate of the battery is equal to or less than a predetermined second threshold value. In some cases, the power generation system continues to generate power and supply power to the load, and when the charge rate of the battery exceeds the second threshold, the power generation system is supplied with power and power to the load. It is an in-vehicle control device including a power generation control unit for stopping.

Further, in another aspect of the present invention, in the vehicle-mounted control device, the power generation permission acquisition unit is configured to acquire the power generation permission signal input by using the user interface provided in the vehicle. May be good.

Further, in another aspect of the present invention, in the vehicle-mounted control device, the power generation permission acquisition unit acquires the power generation permission signal output when the supply of electric power from the power system is stopped. May be good.

Further, in another aspect of the present invention, in the in-vehicle control device, when the power generation system is stopped and the bonnet covering the power generation system is open, the power generation permission signal is acquired in the power generation control unit. Also, a configuration may be used that keeps the power generation system stopped.

Another aspect of the present invention is that in an in-vehicle control device, the power generation control unit opens a bonnet that covers the power generation system while the power generation system is performing power generation and supply of power to the load. , A configuration may be used in which the power generation system continues to generate power and supply power to the load.

Another aspect of the present invention is that in an in-vehicle control device, the power generation control unit opens a bonnet that covers the power generation system while the power generation system is performing power generation and supply of power to the load. , The configuration that shuts down the power generation system may be used.

In another aspect of the present invention, in an in-vehicle control device, the power generation control unit causes the power generation system to generate power and supply power to the load when the transmission is in a parked or neutral state. The configuration may be used.

In another aspect of the present invention, in an in-vehicle control device, the power generation system is an internal combustion engine, and the power generation control unit is the power generation system when the transmission and the internal combustion engine are disconnected by a clutch. A configuration may be used in which the power is generated and the power is supplied to the load.

In another aspect of the present invention, in an in-vehicle control device, the power generation system is an internal combustion engine, and the power generation control unit operates the internal combustion engine at an operating point where the fuel consumption rate exceeds a predetermined threshold value. Therefore, a configuration may be used in which the internal combustion engine is made to generate electricity and supply electric power to the load.

In another aspect of the present invention, in an in-vehicle control device, the power generation system is an internal combustion engine, and the power generation control unit is used when the power consumption of the load exceeds a predetermined threshold value and when the battery is charged. In at least one of the cases where the battery cannot be charged because the rate exceeds a predetermined threshold, power is generated by the internal combustion engine and power is supplied to the load regardless of the fuel consumption rate of the internal combustion engine. The configuration may be used.

Further, in another aspect of the present invention, in the in-vehicle control device, the power supply control unit is an upper limit value of the amount of power that can be supplied by the battery depending on the state of the load or the place where the charger / discharger is installed. The configuration may be used to switch between.

Further, in another aspect of the present invention, in the in-vehicle control device, the power supply control unit is the upper limit value of the amount of power that can be supplied by the battery depending on the state of the load or the place where the charger / discharger is installed. When the upper limit switching permission signal instructing to change is received, the configuration for changing the upper limit value may be used.

Further, in another aspect of the present invention, in the in-vehicle control device, when the power supply control unit receives the upper limit switching permission signal input by using the user interface provided in the vehicle, the upper limit value is set. Modifications, configurations may be used.

Further, in another aspect of the present invention, in the in-vehicle control device, the power supply control unit may be configured to acquire an upper limit switching permission signal output at a place where the upper limit value can be switched. ..

Another aspect of the present invention is that in the in-vehicle control device, the power supply control unit changes the value of the first threshold value according to the situation in which the vehicle equipped with the battery is used. It may be used.

In another aspect of the present invention, in the in-vehicle control device, the power supply control unit instructs the value of the first threshold value to be changed according to the situation in which the vehicle is used. Is received, a configuration may be used that changes the value of the first threshold.

Further, in another aspect of the present invention, when the power supply control unit receives the first threshold value change instruction signal input by using the user interface provided in the vehicle in the in-vehicle control device, the above-mentioned A configuration may be used that modifies the value of the first threshold.

Further, another aspect of the present invention is used in an in-vehicle control device, wherein the power supply control unit acquires a first threshold value change instruction signal output when the power supply from the power system is stopped. May be done.

Further, in another aspect of the present invention, in the vehicle-mounted control device, the power supply control unit continues to supply power from the power system to the first threshold value when the power supply from the power system is stopped. A configuration may be used that is smaller than the first threshold in the case of.

In another aspect of the present invention, in the in-vehicle control device, the power supply control unit determines the charge rate of the battery required for the power generation system to start power generation and supply of power to the load. A configuration with one threshold may be used.

One aspect of the present invention is a power supply instruction acquisition function for acquiring a power supply instruction signal instructing a computer to supply power from a battery to a load, and after the power supply instruction signal is acquired, the battery provides the power supply instruction signal. When the supply of electric power to the load is started and the charge rate of the battery exceeds a predetermined first threshold value, the electric power is supplied from the battery to the load, and the charge rate of the battery is the first. If it is below the threshold, the power supply control function that stops the supply of power from the battery to the load and the power generation system are allowed to generate power to supply power from the power generation system to the load. A power generation permission acquisition function for acquiring a power generation permission signal, and after the power generation permission signal is acquired, the power generation system is started to generate power and supply power to the load, and the charge rate of the battery is a predetermined second. If it is below the threshold, the power generation system continues to generate power and supply power to the load, and if the charge rate of the battery exceeds the second threshold, the power generation system generates power and power to the load. It is an in-vehicle control program to realize the power generation control function that stops the supply of electricity.

One aspect of the present invention is a power supply system including any one of the above-mentioned vehicle-mounted control devices and a charger / discharger that connects the vehicle-mounted control device to at least one of a load and a power system.

According to the present invention, the time during which electric power can be supplied can be lengthened.

It is a figure which shows an example of the structure of the power supply system which concerns on embodiment. It is a figure for demonstrating an example of the 1st threshold in the case where the power supply from a power system which concerns on embodiment is executed as usual, and the case where the power supply from a power system is stopped. It is a figure which shows an example of the charge rate of the battery which concerns on embodiment, the rotation speed of an internal combustion engine, the electric power consumed by a load, the electric power generated by a power generation system, and on / off of a switch. It is a flowchart which shows an example of the process executed by the vehicle-mounted control device which concerns on embodiment. It is a flowchart which shows an example of the process executed by the vehicle-mounted control device which concerns on embodiment.

With reference to FIG. 1, the components of the power supply system according to the embodiment will be described focusing on the in-vehicle control device. FIG. 1 is a diagram showing an example of a configuration of a power supply system according to an embodiment.

As shown in FIG. 1, the power supply system 1 includes a vehicle 10 and a charger / discharger 20. The vehicle 10 is, for example, an electric vehicle, a hybrid vehicle, a plug-in hybrid vehicle, or a fuel cell vehicle, and includes a battery 11, a power generation system 12, and an in-vehicle control device 13. The charger / discharger 20 supplies the electric power stored in the battery 11 to the load 800 via the distribution board 700. Further, the charger / discharger 20 supplies the electric power supplied from the electric power system 900 to the battery 11 via the distribution board 700. The distribution board 700 is a facility that lowers the voltage of electric power transmitted at a high voltage. The load 800 is a device that consumes the electric power supplied from the battery 11 to perform work. The electric power system 900 is an entire facility that produces and consumes electric power, and includes, for example, power generation facilities, power transmission facilities, substation facilities, distribution facilities, and consumer facilities. The charger / discharger 20 transmits an upper limit switching permission signal and a power supply end signal to the vehicle-mounted control device 13. The upper limit switching permission signal is a signal that permits switching the upper limit of the power supplied from the battery 11 to the load 800. The power supply end signal is a signal instructing the battery 11 to end the power supply to the load 800.

Further, as shown in FIG. 1, the vehicle 10 includes a battery 11, a power generation system 12, and an in-vehicle control device 13.

The battery 11 is a power device that generates electric power to be supplied to a load 800 connected to the vehicle 10 via a motor for traveling the vehicle 10 and a charger / discharger 20, and is, for example, a nickel hydrogen battery or a lithium ion battery. The power generation system 12 includes, for example, an internal combustion engine and a fuel cell included in the vehicle 10.

The in-vehicle control device 13 is also called an electronic control unit (ECU), and includes a power supply instruction acquisition unit 131, a power supply control unit 132, a power generation permission acquisition unit 133, and a power generation control unit 134. Be prepared.

The power supply instruction acquisition unit 131 acquires a power supply instruction signal instructing the battery 11 to supply power to the load 800. The power supply instruction signal is output from, for example, the charger / discharger 20.

The power supply control unit 132 starts supplying power from the battery 11 to the load 800 after the power supply instruction signal is acquired. Then, when the charge rate of the battery 11 exceeds a predetermined first threshold value, the power supply control unit 132 executes power supply from the battery 11 to the load 800, and the charge rate of the battery 11 is equal to or lower than the first threshold value. If this is the case, power supply control for stopping the supply of power from the battery 11 to the load 800 is executed. Here, the first threshold value is, for example, the charge rate of the battery 11 required for the power generation system 12 to start power generation and supply of electric power to the load 800. Specifically, the first threshold value is the electric power required for cranking when the power generation system is an internal combustion engine. Further, the power supply control unit 132 may switch the amount of power supplied by the battery 11 according to the load 800.

Further, the power supply control unit 132 may change the value of the first threshold value according to the situation where the vehicle 10 on which the battery 11 is mounted is used. When the power supply control unit 132 receives the first threshold value change instruction signal instructing the vehicle 10 to change the value of the first threshold value according to the situation in which the vehicle 10 is used, the power supply control unit 132 changes the value of the first threshold value. The first threshold value change instruction signal is input using, for example, the user interface provided in the vehicle 10. Alternatively, the first threshold value change instruction signal is output from the charger / discharger 20. Alternatively, the first threshold value change instruction signal may be input wirelessly by an in-vehicle communication system.

Further, the power supply control unit 132 receives an upper limit switching permission signal instructing to change the upper limit of the amount of power that can be supplied by the battery 11 according to the state of the load 800 or the place where the charger / discharger 20 is installed. If so, the upper limit may be changed. Further, the power supply control unit 132 may change the upper limit value of the amount of electric power that can be supplied from the battery 11 depending on the place where the vehicle 10 on which the battery 11 is mounted is used. When the power supply control unit 132 receives the upper limit switching permission signal instructing the change of the upper limit value of the electric energy that can be supplied, the power supply control unit 132 changes the upper limit value of the electric energy that can be supplied from the battery 11. The upper limit switching permission signal is input using, for example, the user interface provided in the vehicle 10. Alternatively, the upper limit switching permission signal is output from the charger / discharger 20. Alternatively, the upper limit switching permission signal is output at a place where the upper limit value can be switched. Alternatively, a method in which the upper limit switching permission signal is wirelessly input by an in-vehicle communication system may be used.

FIG. 2 is a diagram for explaining an example of the first threshold value when the power supply from the power system according to the embodiment is executed as usual and when the power supply from the power system is stopped. .. The first threshold is set to the charging rate shown by the dotted line Th10 in FIG. 2 when the power supply from the power system 900 is being executed normally, and when the power supply from the power system 900 is stopped. The charge rate is set as shown by the dotted line Th20 in FIG. The charge rate shown by the dotted line Th20 in FIG. 2 is smaller than the charge rate shown by the dotted line Th10 in FIG.

When the power supply from the power system 900 is normally executed, the power supply control unit 132 executes the following power supply control, for example. That is, as shown by the solid line L10 in FIG. 2, the power supply control unit 132 decreases the charge rate of the battery 11 as the power is supplied from the battery 11 to the load 800, and the charge rate is shown by the dotted line Th10. When the value becomes equal to or less than the threshold value, the power supply to the load 800 is stopped.

On the other hand, when the power supply from the power system 900 is stopped, the power supply control unit 132 executes the following power supply control, for example. That is, as shown by the broken line L20 in FIG. 2, the power supply control unit 132 decreases the charge rate of the battery 11 as the power is supplied from the battery 11 to the load 800, and the charge rate is shown by the dotted line Th20. When the value becomes equal to or less than the threshold value, the power supply to the load 800 is stopped.

The power generation permission acquisition unit 133 generates power by causing the power generation system 12 to generate electric power, and acquires a power generation permission signal that permits power to be supplied from the power generation system 12 to the load 800. The power generation permission signal is input using, for example, a user interface such as a switch provided in the vehicle 10. Alternatively, the power generation permission signal is output from the charger / discharger 20 when the supply of electric power from the electric power system 900 is stopped. Alternatively, the power generation permission signal may be a method in which the power generation permission signal is wirelessly input by an in-vehicle communication system.

After the power generation permission signal is acquired, the power generation control unit 134 causes the power generation system 12 to start power generation and supply power to the load 800. Then, when the charge rate of the battery 11 is equal to or less than a predetermined second threshold value, the power generation control unit 134 causes the power generation system 12 to continue power generation and supply of power to the load 800, and the charge rate of the battery 11 is the second threshold value. If it exceeds, the power generation control 12 is executed to stop the power generation and the supply of power to the load 800. The power generation control unit 134 may directly supply the generated electric power to the load 800, or may temporarily charge the generated electric power to the battery 11 and supply the electric power from the battery 11 to the load 800. ..

Further, the power generation control unit 134 determines whether or not the conditions under which the power generation system 12 can execute power generation and supply of electric power to the load 800 are satisfied, and controls the power generation system 12 based on the determination result. For example, when the power generation system 12 is stopped and the bonnet covering the power generation system 12 is open, the power generation control unit 134 keeps the power generation system 12 stopped even if the power generation permission signal is acquired. Alternatively, the power generation control unit 134 causes the power generation system 12 to generate power and supply power to the load 800 when the transmission is in the parked or neutral state. Alternatively, the power generation control unit 134 causes the power generation system 12 to generate power and supply power to the load 800 when the power generation system 12 is an internal combustion engine and the transmission and the internal combustion engine are disengaged by a clutch.

Next, with reference to FIG. 3, the on / off of the switch for inputting the charge rate of the battery 11, the rotation speed of the internal combustion engine, the power consumed by the load 800, the power generated by the power generation system 12, and the power generation permission signal. Explain the relationship between. FIG. 3 is a diagram showing an example of the battery charge rate, the rotation speed of the internal combustion engine, the electric power consumed by the load, the electric power generated by the power generation system, and the on / off of the switch according to the embodiment.

In FIG. 3A, the time change of the charge rate of the battery 11 is shown by the solid line C, the above-mentioned first threshold value is shown by the dotted line Th1, and the above-mentioned second threshold value is shown by the dotted line Th2. FIG. 3B shows the time change of the rotation speed of the internal combustion engine, which is an example of the power generation system 12, by the solid line R. In FIG. 3C, the time change of the electric power consumed by the load 800 is shown by the solid line P1, and the time change of the electric power generated by the internal combustion engine, which is an example of the power generation system 12, is shown by the broken line P2. In FIG. 3D, a solid line S indicates whether the switch for inputting the power generation permission signal is on or off.

The time t1 shown in FIG. 3 is an example of the time when the power supply from the power system 900 is stopped. The power supply control unit 132 starts the power supply control described above at time t1. As a result, as shown in FIG. 3A, the charge rate of the battery 11 decreases from time t1 to time t3. This is because, as shown in FIG. 3C, the load 800 consumes a certain amount of power from the time t1 to the time t3. On the other hand, as shown in FIG. 3D, at time t1, the internal combustion engine does not generate power and supply electric power to the load 800. Therefore, as shown in FIG. 3B, the rotation speed of the internal combustion engine. Is zero, and as shown in FIG. 3C, the electric power generated by the internal combustion engine is zero.

The time t2 shown in FIG. 3 is an example of the time when the switch for inputting the power generation permission signal is switched from off to on and the power generation permission signal starts to be input. The power generation system 12 does not start power generation and supply of power to the load 800 only when a power generation permission signal is input. Therefore, as shown in FIG. 3B, the rotation speed of the internal combustion engine is zero, and as shown in FIG. 3C, the electric power generated by the internal combustion engine is zero.

The time t3 shown in FIG. 3 is an example of the time when the charge rate of the battery 11 becomes equal to or less than the first threshold value shown in FIG. 3A and the power generation by the internal combustion engine starts. Since the power generation by the internal combustion engine starts at time t3, as shown in FIG. 3 (b), the rotation speed of the internal combustion engine starts to increase before the time t3, reaches the maximum at the time t3, and becomes after the time t3. It becomes a substantially constant value when the fuel consumption rate exceeds a predetermined threshold. Therefore, as shown in FIG. 3C, the internal combustion engine generates electric power larger than the electric power consumed by the load 800 from the time after the time t3 to the time t4. Further, of the electric energy generated by the internal combustion engine, the electric energy not consumed by the load 800, that is, the electric energy corresponding to the surface integral of the area shown by the shaded area in FIG. 3C is charged to the battery 11.

At time t4 shown in FIG. 3, the state in which the charge rate of the battery 11 exceeds the above-mentioned second threshold value and the fuel consumption rate exceeds a predetermined threshold value and becomes a substantially constant value ends. This is an example of time. As shown in FIG. 3B, the rotation speed of the internal combustion engine starts to decrease toward zero at time t4. As a result, as shown in FIG. 3C, the electric power generated by the internal combustion engine starts to decrease toward zero at time t4. On the other hand, as shown in FIG. 3D, the switch for inputting the power generation permission signal remains on.

After that, when the charge rate of the battery 11 becomes equal to or less than the first threshold value shown in FIG. 3 (a), the internal combustion engine starts power generation again, and the charge rate of the battery 11, the rotation speed of the internal combustion engine, and the internal combustion engine change. The generated power exhibits the same behavior as described above. On the other hand, the switch for inputting the power generation permission signal remains on.

Next, an example of the operation of the in-vehicle control device according to the embodiment will be described with reference to FIGS. 4 and 5. 4 and 5 are flowcharts showing an example of the processing executed by the vehicle-mounted control device according to the embodiment. Further, the flowchart shown in FIG. 4 and the flowchart shown in FIG. 5 are connected by the binder A, the binder B and the binder C shown in FIGS. 4 and 5. The processes shown in FIGS. 4 and 5 are periodically (for example, every 10 ms) executed by the in-vehicle control device.

In step S10, the power supply instruction acquisition unit 131 determines whether or not the power supply instruction signal has been acquired. When the power supply instruction acquisition unit 131 determines that the power supply instruction signal has been acquired (step S10: YES), the process proceeds to step S20, and when it determines that the power supply instruction signal has not been acquired (step S10: YES). NO), the process is terminated.

In step S20, the vehicle-mounted control device 13 determines whether or not the power supply system 1 is normal. When the in-vehicle control device 13 determines that the power supply system 1 is normal (step S20: YES), proceeds to step S30, and determines that the power supply system 1 is not normal (step S20: NO). The process proceeds to step S160.

In step S30, the vehicle-mounted control device 13 determines whether or not the upper limit switching permission signal has been acquired. When the in-vehicle control device 13 determines that the upper limit switching permission signal has been acquired (step S30: YES), the process proceeds to step S40, and when it is determined that the upper limit switching permission signal has not been acquired (step S30: NO). , The process proceeds to step S50.

In step S40, the vehicle-mounted control device 13 switches the upper limit of the electric power supplied to the load 800.

In step S50, the power supply control unit 132 determines whether or not the first threshold value change instruction signal has been acquired. When the power supply control unit 132 determines that the first threshold value change instruction signal has been acquired (step S50: YES), the process proceeds to step S60, and when it is determined that the first threshold value change instruction signal has not been acquired (step S50: YES). Step S50: NO), the process proceeds to step S70.

In step S60, the power supply control unit 132 changes the first threshold value.

In step S70, the power supply control unit 132 determines whether or not the charge rate of the battery 11 is less than the first threshold value. When the charge rate of the battery 11 is less than the first threshold value (step S70: YES), the power supply control unit 132 proceeds to step S80 and when the charge rate of the battery 11 is equal to or higher than the first threshold value (step S70). : NO), the process proceeds to step S110.

In step S80, the power generation permission acquisition unit 133 determines whether or not the power generation permission signal has been acquired. When the power generation permission acquisition unit 133 determines that the power generation permission signal has been acquired (step S80: YES), proceeds to step S90, and determines that the power generation permission signal has not been acquired (step S80: NO). The process proceeds to step S160. If it is determined in step S80 that the power generation permission signal has not been acquired and the process proceeds to step S160, the charging rate is below the first threshold value and the power generation system 12 cannot be operated. Therefore, it is impossible to supply power to the load 800.

In step S90, the power generation control unit 134 determines whether or not the conditions under which the power generation system 12 can generate power and supply power to the load 800 are satisfied. When the power generation control unit 134 determines that the conditions under which the power generation system 12 can generate power and supply power to the load 800 are satisfied (step S90: YES), the process proceeds to step S100, and the power generation system 12 proceeds. Determines that the conditions under which power generation and power supply to the load 800 can be executed are not satisfied (step S90: NO), the process proceeds to step S160. If it is determined in step S90 that the conditions under which the power generation system 12 can generate power and supply power to the load 800 are not satisfied and the process proceeds to step S160, the charge rate falls below the first threshold value. In addition, the power generation system 12 cannot be operated, and power cannot be supplied to the load 800.

In step S100, the power generation control unit 134 operates the power generation system 12 to supply power to the load 800.

In step S110, the power generation control unit 134 determines whether or not the power generation system 12 is operating. When the power generation control unit 134 determines that the power generation system 12 is operating (step S110: YES), the process proceeds to step S120, and when it is determined that the power generation system 12 is not operating (step S110: NO). , The process proceeds to step S140.

In step S120, the power generation control unit 134 determines whether or not the charge rate of the battery 11 is larger than the second threshold value. When the power supply control unit 132 determines that the charge rate of the battery 11 is larger than the second threshold value (step S120: YES), the process proceeds to step S140, and the charge rate of the battery 11 is equal to or less than the second threshold value. If it is determined (step S120: NO), the process proceeds to step S130. When the power generation control unit 134 proceeds to the process in step S140, it is possible to supply power to the load 800 even if the power generation system 12 does not generate power when the battery 11 is fully charged. On the other hand, when the power generation control unit 134 proceeds to the process in step S130, since the charge rate of the battery 11 is equal to or less than the second threshold value, it is determined in step S130 whether or not to continue the power generation by the power generation system 12.

In step S130, the power generation control unit 134 determines whether or not the conditions under which the power generation system 12 can generate power and supply power to the load 800 are satisfied. When the power generation control unit 134 determines that the conditions under which the power generation system 12 can generate power and supply power to the load 800 are satisfied (step S130: YES), the process proceeds to step S100, and the power generation system 12 proceeds. If it is determined that the conditions under which power generation and power supply to the load 800 can be executed are not satisfied (step S130: NO), the process proceeds to step S140. When the power generation control unit 134 proceeds to the process in step S140, the charging of the battery 11 is not completed, but the charging rate is equal to or higher than the first threshold value. Therefore, the power generation system 12 is stopped and the battery 11 is loaded. Continue to supply power to the 800.

In step S140, the power generation control unit 134 executes power supply to the load 800 without operating the power generation system 12.

In step S150, the vehicle-mounted control device 13 determines whether or not the power supply end signal has been acquired. When the in-vehicle control device 13 determines that the power supply end signal has been acquired (step S150: YES), the process proceeds to step S160, and when it is determined that the power supply end signal has not been acquired (step S150: NO). , End the process.

In step S160, the vehicle-mounted control device 13 ends the power supply to the load 800.

The power supply system 1 according to the embodiment has been described above, focusing on the in-vehicle control device 13. After the power generation permission signal is acquired, the in-vehicle control device 13 causes the power generation system 12 to start power generation and supply power to the load 800, and when the charge rate of the battery 11 is equal to or less than a predetermined second threshold value, the power generation system 12 continues the power generation and supply of power to the load 800, and when the charge rate of the battery 11 exceeds the second threshold value, the power generation system 12 stops the power generation and supply of power to the load 800. Therefore, even if the charge rate of the battery 11 decreases due to the supply of electric power from the battery 11 to the load, the in-vehicle control device 13 generates electric power in the power generation system 12 and supplies the electric power to the load 800, so that the electric power supply system 1 The time that can be supplied to the load 800 can be increased.

The power generation permission acquisition unit 133 acquires the input power generation permission signal using the user interface provided in the vehicle 10. Therefore, the power supply system 1 operates the power supply control unit 132 according to the user's intention, and it is possible to prevent the power generation system 12 from malfunctioning.

Alternatively, the power generation permission acquisition unit 133 acquires a power generation permission signal that is output when the supply of electric power from the power system 900 is stopped. Therefore, the power supply system 1 operates the power supply control unit 132 even when the power supply from the power system 900 is stopped and the load 800 cannot receive the power supply from the power system 900. Power can be supplied from the battery 11 to the load 800.

When the power generation system 12 is stopped and the bonnet covering the power generation system 12 is open, the power generation control unit 134 keeps the power generation system 12 stopped even if the power generation permission signal is acquired. Therefore, the power supply system 1 can avoid operating the power generation system 12 with the bonnet open when there is a person near the vehicle 10.

The power generation control unit 134 causes the power generation system 12 to generate power and supply power to the load 800 when the transmission is in the parked or neutral state. Alternatively, the power generation control unit 134 causes the power generation system 12 to generate power and supply power to the load 800 when the transmission and the internal combustion engine are disengaged by the clutch. Therefore, the power supply system 1 can prevent the vehicle 10 from erroneously starting.

Since the power supply control unit 132 switches the amount of power supplied by the battery 11 according to the load 800, the battery 11 can supply an appropriate amount of power corresponding to the type of load 800 and the power consumption.

Since the power supply control unit 132 changes the value of the first threshold value according to the situation in which the vehicle 10 is used, sufficient power can be supplied to the load 800. Further, when the power supply control unit 132 receives the first threshold value change instruction signal instructing the vehicle 10 to change the value of the first threshold value according to the situation where the vehicle 10 is used from the charger / discharger 20 or the like, the first threshold value In order to change the value of, the first threshold value can be changed according to the request of the charger / discharger 20 and the like. Further, when the power supply control unit 132 receives the first threshold value change instruction signal input using the user interface provided in the vehicle 10, the power supply control unit 132 changes the value of the first threshold value, so that the user intends to do so. The first threshold can be changed accordingly. The first threshold value is the charge rate of the battery 11 required for the power generation system 12 to start power generation and supply of electric power to the load 800. Therefore, the power supply control unit 132 can avoid a situation in which the power generation system 12 cannot start power generation and supply power to the load 800, and cannot supply power to the load 800. ..

The power supply control unit 132 sets the first threshold value when the power supply from the power system 900 is stopped to be smaller than the first threshold value when the power supply from the power system 900 is continued. Therefore, when the power supply of the power system 900 is stopped, the power supply control unit 132 can further extend the time during which the power can be supplied.

In the above-described embodiment, when the power generation system 12 is stopped and the bonnet covering the power generation system 12 is open, the power generation control unit 134 stops the power generation system 12 even if the power generation permission signal is acquired. The example is to leave it as it is, but it is not limited to this.

For example, when the power generation control unit 134 opens the bonnet covering the power generation system 12 while the power generation system 12 is executing power generation and supply of power to the load 800, the power generation control unit 134 causes the power generation system 12 to generate power and supply power to the load 800. The supply may be continued. As a result, when the user recognizes that the power generation control unit 134 is executing power generation and power supply to the load 800, the power generation control unit 134 generates power and load 800 by the power generation system 12 even if the bonnet is opened. It is possible to avoid the situation where the power supply to the power is stopped.

It should be noted that such a process is realized by advancing the process to step S100 when the power generation control unit 134 determines in step S130 that the bonnet is opened while the power generation system 12 is operating. Further, in this case, even if the power generation control unit 134 determines in step S130 that the bonnet is not open while the power generation system 12 is operating, the process proceeds to step S100 in the same manner.

Alternatively, the power generation control unit 134 may stop the power generation system 12 when the bonnet covering the power generation system 12 is opened while the power generation system 12 is executing power generation and supply of power to the load 800. As a result, the power generation control unit 134 can avoid operating the power generation system 12 with the bonnet open when there is a person near the vehicle 10.

It should be noted that such a process is realized by advancing the process to step S140 when the power generation control unit 134 determines in step S130 that the bonnet is opened while the power generation system 12 is operating. Further, in this case, if the power generation control unit 134 determines in step S130 that the bonnet is not open while the power generation system 12 is operating, the process proceeds to step S100.

Further, when the power generation system 12 is an internal combustion engine, the power generation control unit 134 operates the internal combustion engine at an operating point where the fuel consumption rate exceeds a predetermined threshold value to generate power and supply electric power to the load 800 to the internal combustion engine. May be executed. However, the power generation control unit 134 is at least one of the cases where the power consumption of the load 800 exceeds a predetermined threshold value and the case where the battery 11 cannot be charged because the charge rate of the battery 11 exceeds a predetermined threshold value. In the case of, the internal combustion engine is made to generate power and supply electric power to the load 800 regardless of the fuel consumption rate of the internal combustion engine.

Further, in the above-described embodiment, the case where the first threshold value is changed after the power supply control is started has been given as an example, but the present invention is not limited to this. The power supply control unit 132 may change the first threshold value before starting the power supply control.

Further, the programs for realizing the functions of the power supply instruction acquisition unit 131, the power supply control unit 132, the power generation permission acquisition unit 133, and the power generation control unit 134 according to the above-described embodiment are recorded on a computer-readable recording medium. , The processing may be performed by loading the program recorded on the recording medium into a computer system and executing the program.

The computer system referred to here may include hardware such as an operating system (OS: Operating System) or peripheral devices. The computer-readable recording medium includes, for example, a floppy disk, a photomagnetic disk, a ROM (Read Only Memory), a writable non-volatile memory such as a flash memory, and a portable medium such as a DVD (Digital Versatile Disc). A computer system that holds a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client when a program is transmitted via a storage device such as a hard disk built into the computer system, a network, or a communication line. Also includes.

Further, the above-mentioned program may be transmitted from a computer system in which this program is stored in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the transmission medium for transmitting a program means a medium having a function of transmitting information, such as a network such as the Internet or a communication line such as a telephone line.

Further, the above-mentioned program may be for realizing a part of the above-mentioned functions, and a program that can realize a part of the above-mentioned functions in combination with a program already recorded in the computer system, so-called. It may be a difference program. The above-mentioned program is read and executed by a processor such as a CPU (Central Processing Unit) included in the computer, for example.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and various modifications, substitutions or designs are made without departing from the gist of the present invention. You can make changes. Further, the configurations described in the above-described embodiments may be combined.

1 ... Power supply system, 10 ... Vehicle, 11 ... Battery, 12 ... Power generation system, 13 ... In-vehicle control device, 131 ... Power supply instruction acquisition unit, 132 ... Power supply control unit, 133 ... Power generation permission acquisition unit, 134 ... Power generation Control unit, 20 ... Charger / discharger, 700 ... Distribution board, 800 ... Load, 900 ... Power system, L10 ... Solid line, L20 ... Broken line, P1 ... Solid line, P2 ... Broken line, R ... Solid line, S ... Solid line, Th1, Th2, Th10, Th20 ... Dotted line

Claims (22)

A power supply instruction acquisition unit that acquires a power supply instruction signal that instructs the load to supply power from the battery,
After the power supply instruction signal is acquired, the supply of power from the battery to the load is started, and when the charge rate of the battery exceeds a predetermined first threshold value, the power from the battery to the load is reached. When the charge rate of the battery is equal to or less than the first threshold value, the power supply control unit for stopping the supply of power from the battery to the load.
A power generation permission acquisition unit that acquires a power generation permission signal that allows a power generation system to generate power to generate power and supply power from the power generation system to the load.
After the power generation permission signal is acquired, the power generation system is started to generate power and supply power to the load, and when the charge rate of the battery is equal to or less than a predetermined second threshold value, the power generation system is generated and the power is generated. A power generation control unit that continues to supply power to the load and stops the power generation system from generating power and supplying power to the load when the charge rate of the battery exceeds the second threshold value.
In-vehicle control device including. The power generation permission acquisition unit acquires the power generation permission signal input by using the user interface provided in the vehicle.
The vehicle-mounted control device according to claim 1. The power generation permission acquisition unit acquires the power generation permission signal that is output when the supply of electric power from the power system is stopped.
The vehicle-mounted control device according to claim 1. When the power generation system is stopped and the bonnet covering the power generation system is open, the power generation control unit keeps the power generation system stopped even if the power generation permission signal is acquired.
The vehicle-mounted control device according to any one of claims 1 to 3. When the bonnet covering the power generation system is opened while the power generation system is performing power generation and power supply to the load, the power generation control unit supplies the power generation system with power generation and power supply to the load. To continue,
The vehicle-mounted control device according to any one of claims 1 to 3. The power generation control unit stops the power generation system when the bonnet covering the power generation system is opened while the power generation system is performing power generation and supply of power to the load.
The vehicle-mounted control device according to any one of claims 1 to 3. The power generation control unit causes the power generation system to generate power and supply power to the load when the transmission is in a parked or neutral state.
The vehicle-mounted control device according to any one of claims 1 to 6. The power generation system is an internal combustion engine.
The power generation control unit causes the power generation system to generate power and supply power to the load when the transmission and the internal combustion engine are disengaged by a clutch.
The vehicle-mounted control device according to any one of claims 1 to 6. The power generation system is an internal combustion engine.
The power generation control unit operates the internal combustion engine at an operating point where the fuel consumption rate exceeds a predetermined threshold value, thereby causing the internal combustion engine to generate power and supply electric power to the load.
The vehicle-mounted control device according to any one of claims 1 to 8. The power generation system is an internal combustion engine.
The power generation control unit is in at least one of the cases where the power consumption of the load exceeds a predetermined threshold and the battery cannot be charged because the charge rate of the battery exceeds a predetermined threshold. Cause the internal combustion engine to generate electricity and supply electric power to the load regardless of the fuel consumption rate of the internal combustion engine.
The vehicle-mounted control device according to any one of claims 1 to 8. The power supply control unit switches the upper limit value of the amount of power that can be supplied by the battery according to the state of the load or the place where the charger / discharger is installed.
The vehicle-mounted control device according to any one of claims 1 to 10. When the power supply control unit receives an upper limit switching permission signal instructing to change the upper limit value of the amount of power that can be supplied by the battery according to the state of the load or the place where the charger / discharger is installed, To change the upper limit
The vehicle-mounted control device according to claim 11. When the power supply control unit receives the upper limit switching permission signal input by using the user interface provided in the vehicle, the power supply control unit changes the upper limit value.
The vehicle-mounted control device according to claim 11. The power supply control unit acquires an upper limit switching permission signal output at a place where the upper limit value can be switched.
The vehicle-mounted control device according to any one of claims 1 to 13. The power supply control unit changes the value of the first threshold value according to the situation in which the vehicle equipped with the battery is used.
The vehicle-mounted control device according to any one of claims 1 to 14. When the power supply control unit receives the first threshold value change instruction signal instructing to change the value of the first threshold value according to the situation in which the vehicle is used, the power supply control unit changes the value of the first threshold value.
The vehicle-mounted control device according to claim 15. When the power supply control unit receives the first threshold value change instruction signal input by using the user interface provided in the vehicle, the power supply control unit changes the value of the first threshold value.
The vehicle-mounted control device according to claim 15. The power generation permission acquisition unit acquires a first threshold value change instruction signal output when the supply of electric power from the electric power system is stopped.
The vehicle-mounted control device according to claim 15. The power supply control unit makes the first threshold value when the power supply from the power system is stopped smaller than the first threshold value when the power supply from the power system is continued.
The vehicle-mounted control device according to claim 15. The power supply control unit sets the charge rate of the battery required for the power generation system to start power generation and supply of power to the load as the first threshold value.
The vehicle-mounted control device according to any one of claims 1 to 19. On the computer
A power supply instruction acquisition function that acquires a power supply instruction signal that instructs the load to supply power from the battery,
After the power supply instruction signal is acquired, the supply of power from the battery to the load is started, and when the charge rate of the battery exceeds a predetermined first threshold value, the power from the battery to the load is reached. And a power supply control function that stops the supply of power from the battery to the load when the charge rate of the battery is equal to or less than the first threshold value.
A power generation permission acquisition function that acquires a power generation permission signal that permits power to be supplied from the power generation system to the load by generating power in the power generation system
After the power generation permission signal is acquired, the power generation system is started to generate power and supply power to the load, and when the charge rate of the battery is equal to or less than a predetermined second threshold value, the power generation system is generated and the power is generated. A power generation control function that continues to supply power to the load and stops the power generation system from generating power and supplying power to the load when the charge rate of the battery exceeds the second threshold value.
In-vehicle control program to realize. The vehicle-mounted control device according to any one of claims 1 to 19.
A charger / discharger that connects the in-vehicle control device to at least one of the load and power system,
Power supply system with.

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