Propulsion Control of Fuel Cell Electric Vehicle

Fuel Cell Electric Vehicle overcomes the shortage of Battery Electric Vehicle, which uses only battery as its power source and has a short range. No warming-up process and free from carno cycle, Fuel Cell Electric Vehicle(FCEV) has a high energy convert efficiency and is friendly to environment. Internal Combustion Engine Vehicle does not have these advantages. At the same time FCEV still keeps the acceleration performance, high speed, long distance running, safety and comfort as traditional IC Engine Vehicle. Fuel cell is the power source of a Fuel Cell Electric Vehicle, it converts the chemistry energy into electric energy directly, and then the electric energy drive the electrical machine to make the vehicle move. FCEV's complete power train has four kinds of propulsion mode, they are fuel cell(FC) mode, fuel cell and battery mode(FC + B), fuel cell and capacitance(FC + C) mode and fuel cell and battery and capacitance(FC + B + C) mode. The fourth (F + B + C) can satisfy the start, acceleration, force and efficiency demand of braking of a vehicle to the maximum top, but the cost is the highest, the structure and control are the most complex. The general structure of the FCEV's complete power train system is the FC + B combination mode