Power sources hybridization for fuel cell vehicles can overcome short comings such as slow cold start-up, slow dynamic response to load change, and no regenerative energy capture. The hybridization can also reduce the vehicle weight and power source s cost as well as increase the vehicle fuel efficiency.- Power sources hybridization for fuel cell vehicles can overcome short comings such as slow cold start-up, slow dynamic response to load change, and no regenerative energy capture.　The hybridization can also reduce the vehicle weight and power source s cost as well as increase the vehicle fuel efficiency.