CN-116923199-B - Fuel cell power output control method and device, storage medium and electronic equipment

CN116923199BCN 116923199 BCN116923199 BCN 116923199BCN-116923199-B

Abstract

The invention relates to a fuel cell power output control method, a device, a storage medium and electronic equipment, which comprise the steps of obtaining a voltage value of a vehicle voltage platform, comparing the voltage value with a preset voltage range of a vehicle fuel cell, wherein the preset voltage range comprises a preset first voltage range and a preset second voltage range, the first voltage range is a voltage range in which the fuel cell can output with rated power, the second voltage range is a voltage range in which the output power of a fuel cell system stack is limited, determining a first target power of the fuel cell through chargeable power fed back by a power cell and initial target power of the fuel cell when the voltage value of the voltage platform is in the second voltage range, and comparing the first target power with the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform to determine a second target power and output power of the fuel cell. The utilization rate of the fuel cell can be improved, so that the endurance mileage of the vehicle is improved.

Inventors

YAO DONGSHENG
LI YONGXIA
GUO FENGGANG
LIU YONGLIANG
LIU YIN
ZHANG ZHIYUN

Assignees

北汽福田汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230629

Claims (10)

1. A fuel cell power output control method, characterized by being applied to a vehicle, comprising: acquiring a voltage value of the vehicle voltage platform; Comparing the voltage value of the voltage platform with a preset voltage range of the vehicle fuel cell, wherein the preset voltage range of the fuel cell comprises a preset first voltage range and a preset second voltage range, the first voltage range is a voltage range in which the fuel cell can output with rated power, and the second voltage range is a voltage range in which the output power of a fuel cell system stack is limited; When the voltage value of the voltage platform is in the second voltage range, determining a first target power of a fuel cell of the vehicle by acquiring chargeable power fed back by a power cell of the vehicle and an initial target power of the fuel cell of the vehicle; and comparing the first target power of the fuel cell of the vehicle with the maximum loadable power, and determining the second target power of the fuel cell of the vehicle and the output power of the fuel cell, wherein the maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform of the vehicle.
2. The method of claim 1, wherein prior to the obtaining the voltage value of the vehicle voltage platform, the method further comprises: Acquiring a bus voltage value of the vehicle; Determining the maximum loadable power through the bus voltage value, wherein the bus voltage value is used for representing the bus voltage value under the actual operation condition; The maximum loadable power is sent to a vehicle controller of the vehicle for making the output power of the fuel cell less than or equal to the maximum loadable power when adjusting the output power of the fuel cell.
3. The method of claim 1, wherein the determining the first target power of the fuel cell of the vehicle by obtaining the rechargeable power fed back by the power cell of the vehicle and the initial target power of the fuel cell of the vehicle comprises: acquiring initial target power of a fuel cell of the vehicle and chargeable power fed back by a power battery of the vehicle; Comparing the chargeable power fed back by the power battery with the initial target power of the fuel battery, and determining the minimum value between the initial target power of the fuel battery and the chargeable power fed back by the power battery of the vehicle as the first target power of the fuel battery of the vehicle.
4. A method according to claim 3, wherein said obtaining the initial target power of the fuel cell of the vehicle comprises: acquiring the current nuclear charge number SOC of the power battery through a whole vehicle controller of the vehicle; And determining the initial target power of the fuel cell corresponding to the current SOC as the initial target power of the fuel cell of the vehicle according to the corresponding relation between the SOC and the initial target power of the fuel cell.
5. The method of claim 1, wherein the determining the second target power of the vehicle fuel cell and the output power of the fuel cell by comparing the first target power of the vehicle fuel cell with a maximum loadable power comprises: Determining the maximum loadable power of the fuel cell at a voltage value of the voltage platform, wherein the maximum loadable power is used for representing the maximum loadable power of the fuel cell under actual operation conditions; comparing the first target power of the fuel cell with the maximum loadable power, determining the minimum value between the first target power of the fuel cell and the maximum loadable power as the second target power of the fuel cell of the vehicle, and determining the output power of the fuel cell.
6. The method according to claim 1, wherein the method further comprises: when the voltage value of the voltage platform is in the first voltage range, determining a third target power of the fuel cell sent by the vehicle whole controller by comparing the obtained minimum value of the initial target power of the fuel cell of the vehicle, the chargeable power of the power cell and the maximum loadable power, and determining the output power of the fuel cell of the vehicle; and when the voltage value of the voltage platform is not in the preset voltage value range of the vehicle fuel cell, the whole vehicle controller receives the fuel cell fault reporting information, and the vehicle stops when in fault.
7. A fuel cell power output control apparatus, characterized by comprising: The acquisition module is used for acquiring the voltage value of the vehicle voltage platform; The comparison module is used for comparing the voltage value of the voltage platform with a preset voltage range of the vehicle fuel cell, wherein the preset voltage range of the fuel cell comprises a preset first voltage range and a preset second voltage range, the first voltage range is a voltage range in which the fuel cell can output with rated power, and the second voltage range is a voltage range in which the output power of a fuel cell system stack is limited; A first determining module, configured to determine a first target power of a fuel cell of the vehicle by acquiring a chargeable power fed back by a power cell of the vehicle and an initial target power of the fuel cell of the vehicle when a voltage value of the voltage platform is within the second voltage range; And the second determining module is used for determining the second target power of the fuel cell of the vehicle and the output power of the fuel cell by comparing the first target power of the fuel cell of the vehicle with the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform of the vehicle.
8. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-6.
9. An electronic device, comprising: A memory having a computer program stored thereon; A processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-6.
10. A vehicle comprising the electronic device of claim 9.

Description

Fuel cell power output control method and device, storage medium and electronic equipment Technical Field The present disclosure relates to the field of fuel cell systems, and in particular, to a fuel cell power output control method, apparatus, storage medium, and electronic device. Background In the prior art, a fuel cell automobile is driven to advance by driving various mechanical structures in the automobile to work by driving the motor to work by electric energy obtained after chemical reaction of vehicle-mounted fuel. The current whole vehicle framework of the fuel cell automobile adopts the combination of a fuel cell and a power cell, and the voltage of a whole bus of the electric automobile refers to a battery voltage platform, when the voltage of the whole bus is not in the normal working voltage range of the fuel cell system, high-voltage parts in the fuel cell system are reported to be blocked, the fuel cell system is directly shut down due to undervoltage or overvoltage faults, but partial power output capacity still exists when the fuel cell system is in the non-working voltage range, and the problem of low utilization rate of the fuel cell exists. Disclosure of Invention To overcome the problems in the related art, the present disclosure provides a fuel cell power output control method, apparatus, storage medium, and electronic device. According to a first aspect of embodiments of the present disclosure, there is provided a fuel cell power output control method, applied to a vehicle, the method including: acquiring a voltage value of the vehicle voltage platform; Comparing the voltage value of the voltage platform with a preset voltage range of the vehicle fuel cell, wherein the preset voltage range of the fuel cell comprises a preset first voltage range and a preset second voltage range, the first voltage range is a voltage range in which the fuel cell can output with rated power, and the second voltage range is a voltage range in which the output power of a fuel cell system stack is limited; When the voltage value of the voltage platform is in the second voltage range, determining a first target power of a fuel cell of the vehicle by acquiring chargeable power fed back by a power cell of the vehicle and an initial target power of the fuel cell of the vehicle; And comparing the first target power of the fuel cell of the vehicle with the maximum loadable power, and determining the second target power of the fuel cell of the vehicle and the output power of the fuel cell, wherein the maximum loadable power is the maximum loadable power of the fuel cell corresponding to the voltage value of the vehicle voltage platform of the vehicle. Optionally, before the acquiring the voltage value of the vehicle voltage platform, the method further includes: Acquiring a bus voltage value of the vehicle; Determining the maximum loadable power through the bus voltage value, wherein the bus voltage value is used for representing the bus voltage value under the actual operation condition; The maximum loadable power is sent to a vehicle controller of the vehicle for making the output power of the fuel cell less than or equal to the maximum loadable power when adjusting the output power of the fuel cell. Optionally, the determining the first target power of the fuel cell of the vehicle by acquiring the chargeable power fed back by the power cell of the vehicle and the initial target power of the fuel cell of the vehicle includes: acquiring initial target power of a fuel cell of the vehicle and chargeable power fed back by a power battery of the vehicle; Comparing the chargeable power fed back by the power battery with the initial target power of the fuel battery, and determining the minimum value between the initial target power of the fuel battery and the chargeable power fed back by the power battery of the vehicle as the first target power of the fuel battery of the vehicle. Optionally, the acquiring the initial target power of the fuel cell of the vehicle includes: acquiring the current nuclear charge number SOC of the power battery through a whole vehicle controller of the vehicle; And determining the initial target power of the fuel cell corresponding to the current SOC as the initial target power of the fuel cell of the vehicle according to the corresponding relation between the SOC and the initial target power of the fuel cell. Optionally, the determining the second target power of the fuel cell of the vehicle by comparing the first target power of the fuel cell of the vehicle with the maximum loadable power, determining the output power of the fuel cell, includes: Determining the maximum loadable power of the fuel cell at a voltage value of the voltage platform, wherein the maximum loadable power is used for representing the maximum loadable power of the fuel cell under actual operation conditions; comparing the first target power of the fuel cell with the maximum loadable power, determining the minimum v