The invention provides a limping control method of a fuel cell automobile and the fuel cell automobile, belongs to the technical field of fuel cell automobiles, and solves the problem that limping to a set maintenance station cannot be carried out in the prior art. The method comprises the steps that after it is recognized that the fuel cell automobile enters a limping mode, a fuel cell engine is started to supply power to a whole vehicle motor and other on-vehicle electric loads outside the whole vehicle motor, an on-vehicle energy management unit does not respond to the opening degree of an accelerator pedal, and an on-vehicle power battery is disconnected; acquiring the required power of the whole vehicle in the limping mode, and controlling a fuel cell engine to work in a constant output signal mode so as to respond to the required power of the whole vehicle; and the fuel cell engine is controlled to work normally until limping to a set maintenance station, and the fuel cell automobile is controlled to be shut down. The method avoids the situation that the output voltage of the fuel cell engine cannot follow the bus voltage of the power cell so that the whole vehicle cannot operate normally.
本发明提供了一种燃料电池汽车的跛行控制方法及燃料电池汽车,属于燃料电池汽车技术领域,解决了现有技术存在无法跛行至设定维修站风险的问题。该方法包括:识别燃料电池汽车进入跛行模式后,启动燃料电池发动机为整车电机和整车电机外其他车上用电负载供电,车上能量管理单元不响应加速踏板的开度,车上动力电池断开;获取跛行模式下的整车需求功率,控制燃料电池发动机工作在恒输出信号模式以响应所述整车需求功率;控制燃料电池发动机正常工作直到跛行至设定维修站,控制燃料电池汽车关机。该方法避免了出现燃料电池发动机输出电压不能跟随动力电池的母线电压导致整车无法正常运行的情况。
Limp control method of fuel cell automobile and fuel cell automobile
燃料电池汽车的跛行控制方法及燃料电池汽车
2024-09-17
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
CONTROL METHOD OF FUEL-CELL AUTOMOBILE, AND FUEL-CELL AUTOMOBILE
European Patent Office | 2017
|European Patent Office | 2022
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