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Abstract: As its high efficiency and cleanness, fuel cell hybrid
electrical vehicles(FCHEVs) have become the focus of the public. The
control strategy, which influences the economic and dynamic performance
of the vehicle, is one of the main aspects of vehicle system design.
Four control strategies, constant charging voltage strategy, power
distribution strategy based on bus voltage, power distribution according
to the battery SOC(State fo charge), fuzzy logic control strategy based
on both battery SOC and motor load, are presented. Through simulation
calculation of model fuel cell city bus of National 863 Project, these
four control strategies are compared and discussed. Analyses show that
the fuzzy logic control is more robust and more suitable for FCHEVs.
Key words: Fuel cell hybrid electrical vehicle Control strategy
City bus
CLC No: U469.7
国家863计划 项目资助(2003AA501100).
Received 20050310, received in revised form 20050818
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