The invention provides a fuel cell starting method and device, a computer program product and a vehicle. The method comprises the steps that the voltage of a high-voltage system of a whole vehicle is obtained; under the condition that the voltage of the whole vehicle high-voltage system is larger than the first voltage threshold value and smaller than or equal to the second voltage threshold value, the first switch is controlled to be switched on; controlling the fuel cell to start and controlling the second switch to close; under the condition that the voltage of the fuel cell is larger than or equal to the voltage of the whole vehicle high-voltage system at the preset moment, a first electric pile current instruction is issued to control the output current of the fuel cell, and the preset moment is the moment when the starting duration of the fuel cell is equal to the first preset duration; when the absolute value of the error between the actual output current of the fuel cell and the electric pile starting current corresponding to the first electric pile current instruction is smaller than the error threshold value, it is determined that the fuel cell is started successfully, and the problem that a DC/DC converter in the prior art cannot meet the requirement for low-voltage normal starting of the fuel cell is solved.
本申请提供了一种燃料电池的启动方法、装置、计算机程序产品和车辆,该方法包括:获取整车高压系统的电压;在整车高压系统的电压大于第一电压阈值且小于或者等于第二电压阈值的情况下,控制第一开关闭合;控制燃料电池启动并控制第二开关闭合;在预定时刻下燃料电池的电压大于或者等于整车高压系统的电压的情况下,下发第一电堆电流指令来控制燃料电池的输出电流,预定时刻为燃料电池的启动时长等于第一预定时长的时刻;在燃料电池的实际输出电流与第一电堆电流指令对应的电堆启动电流的误差的绝对值小于误差阈值的情况下,确定燃料电池启动成功,解决现有技术的DC/DC变换器无法满足燃料电池低压正常启动的要求的问题。
Starting method and device of fuel cell, computer program product and vehicle
燃料电池的启动方法、装置、计算机程序产品和车辆
2024-08-27
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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