燃料电池车辆耐久性提升控制方法及系统
By introducing a low stoichiometric ratio in-situ electrochemical cleaning method into fuel cell vehicles, combined with the fault diagnosis and flag storage mechanism of the vehicle controller, the passive repair problem of fuel cell vehicles when fuel leaks or is not filled with impurities is solved, and active repair of the catalyst and improvement of stack performance are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHONGTONG BUS HLDG
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, fuel cell vehicles can only adopt a passive alarm-shutdown-maintenance mode when fuel leaks or is filled with impure fuel. They cannot actively repair catalyst poisoning and membrane electrode damage that have already occurred, leading to accelerated degradation of stack performance and shortened engine life.
By introducing a low stoichiometric ratio in-situ electrochemical cleaning method into the fuel cell system, combined with the vehicle controller's fault diagnosis and flag storage mechanism, active durability improvement can be achieved for fuel leaks or impure fuel filling. Specific steps include, under safe conditions, using the vehicle controller for unified diagnosis, flag storage, and triggering of low stoichiometric ratio cyclic cleaning of the fuel cell stack at opportune times to restore catalyst activity.
It enables proactive repair of fuel cell vehicles under abnormal conditions, avoiding safety risks and ineffective operations, ensuring that cleaning operations are only performed when the abnormality has been eliminated and the vehicle is in a safe condition, effectively restoring catalyst activity and extending the lifespan of the fuel cell stack.
Smart Images
Figure CN122402245A_ABST