JP6957976B2 - Vehicle power generation control device - Google Patents

Description

The present invention relates to a vehicle power generation control device.

Among vehicles that use the electric power charged in the secondary battery as power, there are vehicles equipped with a generator such as a fuel cell (FCU) as a power source for charging or a power source for power.

Patent Document 1 discloses that the threshold value for determining the power generation start timing of the fuel cell is changed according to the traveling condition of the vehicle.

Japanese Unexamined Patent Publication No. 2012-253948

However, in the case described in Patent Document 1, after the fuel cell starts to generate power, the balance between the power consumption of the secondary battery and the fuel consumption of the fuel cell is poor, and either the power of the secondary battery or the fuel of the fuel cell is used. One of them disappears early, and the output performance of the vehicle cannot be maintained.

Therefore, the present invention provides a vehicle power generation control device capable of preventing one of the power of the secondary battery and the fuel of the generator from being exhausted at an early stage and maintaining the state of maintaining the output performance of the vehicle. The purpose is.

In order to solve the above problems, the present invention presents a motor that generates a driving force required for traveling of a vehicle, a battery that can be charged from an external power source and supplies power to the motor, and power for charging the battery or the above. It is a power generation control device of a vehicle including a generator for generating power to be supplied to an electric motor, and includes a control unit including a power generation continuation time calculation unit and a power generation power calculation unit. , Time until the generator runs out of fuel when the generator continues to generate power so as to generate the power generation reference power based on the remaining amount of fuel of the generator and a predetermined power generation reference power. When the generator starts to generate power, the generated power calculation unit calculates the power generation reference power by dividing the remaining capacity of the battery by the power generation continuous time. In addition , the total output power, which is the combined output power of the battery and the generator so that the remaining capacity of the battery and the remaining fuel amount of the generator disappear at the same time, is calculated, and the control unit generates the power generation. after generation of the machine is started, the ratio of the current average power consumption of the vehicle relative to the total output power, that controls the generated power of the generator to be equal to the power value obtained by multiplying the generator reference power It is also of the.

As described above, according to the present invention, it is possible to prevent one of the electric power of the battery and the fuel of the generator from being exhausted at an early stage, and to maintain the output performance of the vehicle.

FIG. 1 is a block diagram of a vehicle power generation control device according to an embodiment of the present invention. FIG. 2 is a diagram showing the relationship between the amount of power that can be output from the battery of the vehicle power generation control device according to the embodiment of the present invention, the amount of power that can be generated by the fuel cell, and the start timing of the fuel cell. FIG. 3 is a diagram showing the relationship between the total output power of the vehicle power generation control device according to the embodiment of the present invention, the average power consumption, the power generation reference power, and the power generation of the fuel cell. FIG. 4 is a block diagram of a control system of a vehicle power generation control device according to an embodiment of the present invention. FIG. 5 is a flowchart showing a procedure of power generation control processing of the power generation control device of the vehicle according to the embodiment of the present invention. FIG. 6 is a diagram showing the relationship between the amount of power that can be output from the battery of the power generation control device of the vehicle, the amount of power that can be generated by the fuel cell, and the start timing of the fuel cell according to the first other aspect of the first embodiment of the present invention. Is. FIG. 7 is a diagram showing the relationship between the amount of power that can be output from the battery of the power generation control device of the vehicle, the amount of power that can be generated by the fuel cell, and the start timing of the fuel cell according to the second other aspect of the second embodiment of the present invention. Is.

The vehicle power generation control device according to an embodiment of the present invention has an electric motor that generates a driving force required for traveling of the vehicle, a battery that can be charged from an external power source, and a battery that supplies power to the electric power generator, and charges the battery. It is a power generation control device of a vehicle equipped with a generator for generating electric power or electric power to be supplied to an electric motor, and when the generator starts to generate electricity, the remaining capacity of the battery and the remaining fuel amount of the generator are used. Based on the power generation reference power that is the power generated when the generator generates power, the total output that is the combined output power of the battery and the generator so that the remaining capacity of the battery and the remaining fuel amount of the generator disappear at the same time. It is configured to include a control unit that calculates the power and controls the generator's power generation based on the power generation reference power, the current average power consumption of the vehicle and the total output power after the generator's power generation is started. There is.

As a result, it is possible to prevent one of the electric power of the battery and the fuel of the generator from being exhausted at an early stage, and it is possible to continue the state in which the output performance of the vehicle is maintained.

Hereinafter, the vehicle power generation control device according to the embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, a vehicle 1 equipped with a power generation control device according to an embodiment of the present invention includes an electric motor 2, a battery 3, a fuel cell 4 as a generator, a direct current DC converter 5, and hydrogen. It includes a tank 6 and a control unit 7.

The electric motor 2 includes, for example, a synchronous motor including a rotor in which a plurality of permanent magnets are embedded and a stator in which a stator coil is wound. In the electric motor 2, a rotating magnetic field is formed in the stator by applying three-phase AC power to the stator coil, and the rotor rotates by the rotating magnetic field to generate power. The power generated by the electric motor 2 is changed by a transmission (not shown) and transmitted to drive wheels (not shown) to drive the vehicle 1. Further, when the electric power 2 is transmitted from the drive wheel side to the electric motor 2 side at the time of deceleration of the vehicle 1, the electric motor 2 functions as a generator and generates regenerative electric power.

The battery 3 is composed of, for example, a nickel storage battery, a lithium storage battery, or the like, and is configured by connecting a plurality of cells in series. The battery 3 supplies electric power to the motor 2. The battery 3 can be charged from an external power source of the vehicle 1, for example, a household power source. The battery 3 is provided with a battery status sensor 31. The battery status sensor 31 detects the charge / discharge current, voltage, and battery temperature of the battery 3. The battery status sensor 31 is connected to the control unit 7. The control unit 7 can detect the charge state of the battery 3 by the output of the battery status sensor 31.

In the fuel cell 4, a fuel gas such as hydrogen gas and an oxidant gas having oxygen are electrochemically reacted via an electrolyte, and electric energy is directly extracted from the electrodes provided on both sides of the electrolyte. The fuel cell 4 is provided with an operating point measuring unit 41 that detects the power generation voltage value, the power generation current value, and the like of the fuel cell 4.

The DCDC converter 5 converts the electric power generated by the fuel cell 4 so as to be compatible with the motor 2.

The hydrogen tank 6 compresses hydrogen gas, which is the fuel gas of the fuel cell 4, into a high-pressure state and stores it. The hydrogen tank 6 is provided with a fuel remaining amount sensor 61 that detects the remaining amount of hydrogen gas in the hydrogen tank 6. The fuel level sensor 61 is connected to the control unit 7. The control unit 7 can detect the remaining amount of hydrogen gas by the output of the fuel remaining amount sensor 61.

The control unit 7 is composed of a computer unit including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an input port, an output port, and a network module. It is configured.

The ROM of the control unit 7 stores various control constants, various maps, and the like, as well as a program for causing the computer unit to function as the control unit 7. That is, when the CPU executes the program stored in the ROM, the computer unit functions as the control unit 7.

Various sensors including the battery status sensor 31, the operating point measuring unit 41, and the fuel level sensor 61 are connected to the input port of the control unit 7. On the other hand, various control objects including the above-mentioned fuel cell 4 are connected to the output port of the control unit 7.

The control unit 7 fuels the fuel based on the remaining capacity of the battery 3, the remaining amount of fuel in the fuel cell 4, the generated power of the fuel cell 4, and the required running power, which is the power required to run the vehicle 1. Determine the start of power generation of the battery 4.

As shown in FIG. 2, the control unit 7 calculates the outputable electric energy Ebat [kWh], which is the amount of electric power that the battery 3 can output from the remaining capacity of the battery 3. The control unit 7 calculates the amount of power that can be generated Efcu [kWh], which is the amount of power that can be generated by the fuel cell 4, from the remaining amount of fuel in the fuel cell 4.

The control unit 7 divides the amount of power that can be generated Efcu [kWh] by the predetermined power generation reference power Pfcu [kW], for example, the power with the highest output efficiency of the fuel cell 4, and hydrogen when the fuel cell 4 is operated. Calculate the power generation continuation time Tfcu [h], which is the time until the gas runs out.

In the control unit 7, the value obtained by adding the outputable electric energy Ebat [kWh] and the power generationable electric energy Efcu [kWh] is the electric energy required to drive the vehicle 1, the required electric energy for traveling and the continuous power generation time Tfcu [ When it becomes smaller than the value multiplied by h], the power generation of the fuel cell 4 is started. The required electric power for traveling is, for example, the maximum electric power Pmaxveh [kW] required for the vehicle.

As described above, by not operating the fuel cell 4 under the condition that the battery 3 can run only by the electric power amount, it is possible to suppress the consumption of expensive hydrogen. In addition, the frequency of refueling the fuel cell 4 can be reduced, and the time and cost for that purpose can be reduced.

Further, when the remaining capacity of the battery 3 decreases, the mileage is maximized by the current remaining capacity of the battery 3 and the remaining fuel amount of the fuel cell 4 while maintaining the vehicle state before the remaining capacity of the battery 3 decreases. Can be stretched to.

Further, when the remaining capacity of the battery 3 is reduced, the fuel cell 4 can be efficiently used to generate electricity.

In addition, the number of times the fuel cell 4 is started can be reduced, and deterioration of the fuel cell 4 can be suppressed.

The power generation reference power Pfcu [kW] may be updated due to a change in power generation efficiency due to a change in the environment of the fuel cell 4. The control unit 7 may update the power generation reference power Pfcu [kW] depending on the environmental temperature of the fuel cell 4 or the like.

Further, the power generation reference power Pfcu [kW] may be obtained from a map determined by the environmental temperature of the fuel cell 4 or the like. Further, it may be obtained from the operating data of the fuel cell 4 including the history so far. Further, the efficiency of the fuel cell 4 may also be obtained from a map or data during operation of the fuel cell 4.

Also, even if the user is asked to specify the "remaining amount of fuel (%) that he / she wants to keep after driving" and the amount of power that can be generated Efcu [kWh] and the continuous power generation time Tfcu [h] are calculated so that the amount remains. good.

As shown in FIG. 2, the outputable electric energy Ebat [kWh] of the battery 3 decreases as shown by the arrows in the figure while the vehicle 1 is traveling. When the outputable electric energy Ebat [kWh] of the battery 3 becomes smaller than the shaded part, the value obtained by adding the output possible electric energy Ebat [kWh] and the power generationable electric energy Efcu [kWh] is the maximum power Pmaxveh [kWh]. It becomes smaller than the value obtained by multiplying the power generation continuous time Tfcu [h] and the power generation continuation time Tfcu [h], and the power generation of the fuel cell 4 is started. After that, the battery 3 outputs the power obtained by subtracting the power generation reference power Pfcu [kW] from the maximum power Pmaxveh [kW]. When the fuel cell 4 generates the power generation reference power Pfcu [kW], the battery 3 and the fuel cell 4 satisfy the maximum power Pmaxveh [kW], and the remaining capacity and the remaining fuel amount are simultaneously obtained after the power generation continuation time Tfcu [h] elapses. Becomes zero.

When the control unit 7 starts power generation of the fuel cell 4, the control unit 7 adds the power value obtained by dividing the outputable power amount Ebat [kWh] of the battery 3 by the power generation continuation time Tfcu [h] and the power generation reference power Pfcu [kW]. The generated power is calculated as the total output power Pveh [kW]. This total output power Pveh [kW] is a battery in which the remaining capacity of the battery 3 and the remaining fuel amount of the fuel cell 4 are exhausted at the same time when the fuel cell 4 is made to generate the power generation reference power Pfcu [kW]. This is the combined output power of 3 and the fuel cell 4.

After starting the power generation of the fuel cell 4, the control unit 7 calculates the average power consumption Paveveh [kW] of the vehicle 1 after the fuel cell 4 is started, and calculates the total output power Pveh [kW] and the average power consumption Paveveh [kW]. The generated power Pconfcu [kW], which is the output of the fuel cell 4, is calculated so that the ratio with and is equal to the ratio of the power generation reference power Pfcu [kW] to the output of the fuel cell 4, and the generated power Pconfcu [kW] is used. The fuel cell 4 is controlled so as to generate electricity.

As shown in FIG. 3, when the maximum power Pmaxveh [kW] assumed at the time of starting the fuel cell 4 and the average power consumption Paveveh [kW] which is the average output of the actual vehicle 1 are different, the fuel battery 4 is started. If the power is generated with the power generation standard power Pfcu [kW] assumed at that time, the balance between the power generated by the fuel cell 4 and the output power of the battery 3 is lost, and either the power of the battery 3 or the fuel of the fuel cell 4 is used at an early stage. It will disappear.

Therefore, in this embodiment, the total output power Pveh [kW] is calculated at the start of power generation of the fuel cell 4, and the fuel cell is adjusted to the ratio of the total output power Pveh [kW] and the average power consumption Pveveh [kW]. The generated power Pconfcu [kW] of 4 is obtained, and the fuel cell 4 is controlled so as to generate power with this generated power Pconfcu [kW]. By doing so, the output power of the battery 3 and the generated power of the fuel cell 4 can be changed by the same ratio, and the output performance of the vehicle 1 can be maintained while maintaining the balance between the output power of the battery 3 and the generated power of the fuel cell 4. It is possible to continue the state of maintaining.

Further, since the total output power Pveh [kW] is calculated at the start of power generation of the fuel cell 4, the power generation control of the fuel cell 4 can be performed accurately, and the capacity of the battery 3 and the fuel of the fuel cell 4 are well-balanced. Can be consumed.

Further, even if the condition for starting the fuel battery 4 when the vehicle 1 is started is obtained, the total output power Pveh [kW] is calculated based on the data at the time of starting, and the power generation control of the fuel battery 4 is performed to control the power generation of the fuel battery 4. The capacity of the fuel cell 4 and the fuel of the fuel cell 4 can be consumed in a well-balanced manner.

In order to perform such processing, as shown in FIG. 4, the control unit 7 includes a battery remaining amount detecting unit 71, a fuel remaining amount detecting unit 72, an outputable electric energy calculation unit 73, and a power generation possible electric energy calculation. A unit 74, a power generation continuous time calculation unit 75, a power generation start determination unit 76, an average power consumption calculation unit 77, and a power generation power calculation unit 78 are provided.

The battery remaining amount detection unit 71 detects the remaining capacity of the battery 3 by the output of the battery status sensor 31. The fuel remaining amount detection unit 72 detects the remaining amount of hydrogen gas by the output of the fuel remaining amount sensor 61.

The outputable electric energy calculation unit 73 calculates the outputable electric energy Ebat [kWh] of the battery 3 from the remaining capacity of the battery 3 detected by the battery remaining amount detection unit 71.

The power generation capacity calculation unit 74 calculates the power generation capacity Efcu [kWh] of the fuel cell 4 from the remaining capacity of the hydrogen gas detected by the fuel remaining amount detection unit 72.

The power generation continuation time calculation unit 75 calculates the power generation continuation time Tfcu [h] by dividing the power generation capacity Efcu [kWh] calculated by the power generation capacity calculation unit 74 by the power generation reference power Pfcu [kW]. do.

The power generation start determination unit 76 is a value obtained by adding the outputable electric energy Ebat [kWh] calculated by the outputable electric energy calculation unit 73 and the power generationable electric energy Efcu [kWh] calculated by the power generation possible power calculation unit 74. However, when the value becomes smaller than the value obtained by multiplying the power generation continuation time Tfcu [h] calculated by the power generation continuation time calculation unit 75 and the maximum power Pmaxveh [kW], the power generation of the fuel cell 4 is started.

The average power consumption calculation unit 77 calculates the average value of the power consumption of the vehicle 1 in a predetermined period. When the fuel cell 4 starts power generation, the average power consumption calculation unit 77 calculates the average value Paveveh [kW] of the power consumption of the vehicle 1 from the start of power generation of the fuel cell 4.

The generated power calculation unit 78 calculates the total output power Pveh [kW] when starting the power generation of the fuel cell 4, and the total output power Pveh [kW] and the power generation of the fuel cell 4 calculated by the average power consumption calculation unit 77. The power generated by the fuel cell 4 Pconfcu so that the ratio to the average power consumption of the vehicle 1 from the start, Paveveh [kW], is equal to the ratio of the power generation reference power Pfcu [kW] to the power generated by the fuel cell 4. Calculate [kW].

The generated power Pconfcu [kW] does not need to be calculated by an accurate ratio calculation, and may be calculated by an approximate ratio.

Further, after the fuel cell 4 is started, the fuel cell 4 having a small contribution to the driving force of the vehicle 1 may be set to zero fuel a little earlier than the battery 3.

The power generation control process by the vehicle power generation control device according to the present embodiment configured as described above will be described with reference to FIG. The power generation control process described below is started when the control unit 7 starts operation.

In step S1, the control unit 7 acquires the information of the fuel remaining amount sensor 61 and calculates the above-mentioned power generation amount Efcu [kWh] and power generation continuation time Tfcu [h].

In step S2, the control unit 7 acquires the information of the battery status sensor 31 and calculates the above-mentioned outputable electric energy Ebat [kWh].

In step S3, the control unit 7 multiplies the maximum power Pmaxveh [kW] and the power generation continuation time Tfcu [h] by the sum of the output possible power amount Ebat [kWh] and the power generation possible power amount Efcu [kWh]. Determine if it is less than the value. When it is determined that the sum of the outputable electric energy Ebat [kWh] and the power generationable electric energy Efcu [kWh] is not smaller than the product of the maximum power Pmaxveh [kW] and the power generation continuation time Tfcu [h]. , The control unit 7 returns to step S2 and repeats the process.

In step S3, when the sum of the outputable electric energy Ebat [kWh] and the power generationable electric energy Efcu [kWh] is smaller than the product of the maximum power Pmaxveh [kW] and the power generation continuous time Tfcu [h]. If determined, in step S4, the control unit 7 starts the fuel cell 4 so as to generate the power generation reference power Pfcu [kW]. In addition, the above-mentioned total output power Pveh [kW] is calculated.

In step S5, the control unit 7 calculates the average value Paveveh [kW] of the power consumption of the vehicle 1 from the start of power generation of the fuel cell 4.

In step S6, the control unit 7 determines that the ratio of the total output power Pveh [kW] to the average value Paveveh [kW] of the power consumption of the vehicle 1 is the power generation reference power Pfcu [kW] and the power generated by the fuel cell 4. The generated power Pconfcu [kW] of the fuel cell 4 is calculated by the following equation 1 so as to be equal to the ratio.
Pconfcu = (Paveveh × Pfcu) / Pveh ... (Equation 1)

In step S7, the control unit 7 controls the output of the fuel cell 4 so as to be the generated power Pconfcu [kW].

In step S3, the sum of the outputable electric energy Ebat [kWh] and the power generationable electric energy Efcu [kWh] is larger than the product of the maximum power Pmaxveh [kW] and the power generation continuous time Tfcu [h]. If it is determined that the value is not small, the process returns to step S2 and the process is repeated, but the process may return to step S1. By doing so, the remaining capacity of the battery 3 and the remaining fuel amount of the fuel cell 4 can be accurately grasped without being affected by the ambient temperature, the sensor error, or the like. Further, instead of returning to step S1 every time, it may be possible to return intermittently. Further, as the fuel remaining amount of the fuel cell 4, the average value of the detected values may be used.

As described above, in the above-described embodiment, when the power generation of the fuel cell 4 is started, the remaining capacity of the battery 3, the remaining fuel amount of the fuel cell 4, and the power generation reference power Pfcu [kW] of the fuel cell 4 are obtained. , The total output power Pveh [kW], which is the combined output power of the battery 3 and the fuel cell 4 so that the remaining capacity of the battery 3 and the remaining fuel amount of the fuel cell 4 disappear at the same time, is calculated, and the power generation of the fuel cell 4 is generated. After the start, the generated power of the fuel cell 4 is controlled based on the power generation reference power Pfcu [kW], the current average power consumption Paveveh [kW] of the vehicle 1, and the total output power Pveh [kW].

As a result, after the start of power generation of the fuel cell 4, the generated power Pconfcu [kW] of the fuel cell 4 is controlled according to the average power consumption Paveveh [kW] of the vehicle 1, and the output power of the battery 3 and the generated power of the fuel cell 4 are controlled. Is balanced, and it is possible to prevent one of the electric power of the battery 3 and the fuel of the fuel cell 4 from being exhausted at an early stage. Therefore, it is possible to continue the state in which the output performance of the vehicle is maintained.

Further, when the fuel cell 4 is made to continue power generation so as to generate the power generation reference power Pfcu [kW] based on the remaining fuel amount of the fuel cell 4 and the power generation reference power Pfcu [kW], the fuel cell 4 It is equipped with a power generation continuation time calculation unit 75 that calculates the power generation continuation time Tfcu [h], which is the time until the fuel runs out, and can continue power generation of the remaining capacity of the battery 3 when the power generation of the fuel battery 4 is started. The total output power Pveh [kW] is calculated by adding the power generation reference power Pfcu [kW] to the value divided by the time Tfcu [h].

As a result, the total output power Pveh [kW] can be calculated accurately at the start of power generation of the fuel cell 4.

Further, the generated power of the fuel cell 4 is controlled so as to be equal to the power value obtained by multiplying the ratio of the average power consumption Paveveh [kW] to the total output power Pveh [kW] by the power generation reference power Pfcu [kW].

As a result, after the start of power generation of the fuel cell 4, it is possible to calculate the generated power with a good balance between the remaining capacity of the battery 3 and the remaining fuel amount of the fuel cell 4.

As the first other aspect of the present embodiment, as shown in FIG. 6, when determining the start of power generation of the fuel cell 4, the power with the highest output efficiency of the fuel cell 4 is used as the power generation reference power of the fuel cell 4. Instead, use the power Pfcu1 [kW] that is larger than the power with the highest output efficiency. In this way, since the amount of power that can be generated by the remaining fuel of the fuel cell 4 Efcu [kWh] is the same as in the case of FIG. 2, the power generation continuation time is Tfcu1 [h], which is shorter than Tfcu [h]. Therefore, the amount of output power of the battery 3 during the power generation period of the fuel cell 4 is reduced, and the start of power generation of the fuel cell 4 can be delayed. In the control of the generated power Pconfcu [kW] after the start of power generation of the fuel cell 4, the ratio of the total output power Pveh [kW] to the average value of the power consumption of the vehicle 1 Paveveh [kW] is the power as the power generation reference power. It is controlled to be equal to the ratio of Pfcu1 [kW] to the generated power of the fuel cell 4.

Further, the user may be able to select the power generation reference power of the fuel cell 4. By setting this power generation reference power higher than the power Pfcu [kW], it is possible to delay the start of power generation of the fuel cell 4, reduce the frequency of hydrogen filling, and reduce the time and cost for that purpose. ..

As a second other aspect of the present embodiment, as shown in FIG. 7, when determining the start of power generation of the fuel cell 4, the average of the vehicle 1 for a predetermined period is not the maximum power Pmaxveh [kW] required for the vehicle. Power consumption Paveveh1 [kW] is used. In normal driving, the vehicle 1 does not consume the maximum power Pmaxveh [kW], and the average power consumption Paveveh1 [kW] is smaller than the maximum power Pmaxveh [kW]. Therefore, the amount of output power of the battery 3 during the power generation period of the fuel cell 4 is reduced, and the start of power generation of the fuel cell 4 can be delayed. In the control of the generated power Pconfcu [kW] after the start of power generation of the fuel cell 4, the ratio of the total output power Pveh [kW] to the average value of the power consumption of the vehicle 1 Paveveh [kW] is the power generation reference power Pfcu [kW]. ] Is controlled to be equal to the ratio of the power generated by the fuel cell 4.

The average power consumption Paveveh1 [kW] does not have to be the latest information, and may be a value based on the running history so far.

Although the embodiments of the present invention have been disclosed, it is clear that some skilled in the art can make changes without departing from the scope of the present invention. All such modifications and equivalents are intended to be included in the following claims.

1 Vehicle 2 Motor 3 Battery 4 Fuel cell (generator)
6 Hydrogen tank 7 Control unit 31 Battery status sensor 61 Fuel remaining amount sensor 71 Battery remaining amount detection unit 72 Fuel remaining amount detection unit 73 Outputtable electric energy calculation unit 74 Power generation possible power amount calculation unit 75 Power generation continuation time calculation unit 76 Power generation Start judgment unit 77 Average power consumption calculation unit 78 Power generation power calculation unit

Claims (3)

An electric motor that generates the driving force required to drive the vehicle,
A battery that can be charged from an external power source and supplies power to the motor,
A power generation control device for a vehicle including a generator for generating electric power for charging the battery or electric power to be supplied to the electric motor.
It is equipped with a control unit that includes a power generation continuation time calculation unit and a power generation power calculation unit.
The power generation continuous time calculation unit generates the power generation when the generator is made to continue power generation so as to generate the power generation reference power based on the remaining amount of fuel of the generator and a predetermined power generation reference power. Calculate the power generation continuation time, which is the time until the machine runs out of fuel,
When the generator starts to generate power , the generated power calculation unit adds the power generation reference power to the value obtained by dividing the remaining capacity of the battery by the power generation continuous time, and obtains the remaining capacity of the battery. The total output power, which is the combined output power of the battery and the generator so that the remaining fuel amount of the generator is exhausted at the same time, is calculated.
After the power generation of the generator is started , the control unit performs the generator so as to be equal to the power value obtained by multiplying the ratio of the current average power consumption of the vehicle to the total output power by the power generation reference power. power generation control apparatus for vehicles that controls the power generated. The control unit
The amount of power that can be output, which is the amount of power that can be output by the battery, is calculated from the remaining capacity of the battery, and the amount of power that can be generated, which is the amount of power that can be generated by the generator, is calculated from the remaining amount of fuel in the generator. ,
When the value obtained by adding the amount of power that can be output and the amount of power that can be generated becomes smaller than the value obtained by multiplying the power required for traveling, which is the power required to drive the vehicle, and the continuous power generation time, the generator. The vehicle power generation control device according to claim 1, wherein the power generation of the vehicle is started. The vehicle power generation control device according to claim 1 or 2 , wherein the generator is a fuel cell.

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