Control Method of Fuel Cell Hybrid Bus

In order to take account for safety associated with fuel cell hybrid bus, both decreasing probability of vehicle breakdown and improving tolerant capacity for certain vehicle breakdown are considered. Aimed at the fuel cell hybrid bus, a structure of vehicle control system is designed. According to the operation principle of vehicle system, the fault-tolerant control strategy is proposed. Some safety problems may be resolved when the strategy is applied to fuel cell hybrid bus. The experimental results on vehicle system for a fuel cell bus show that the vehicle system controller has better tolerant capacity of vehicle breakdown, and realizes the "fail-safe" operation of the proposed system.