Hybrid electric vehicle(HEV),a new technology in automobile industry for resolving the energy shortage and environment pollution,has become a focus of automotive R&D recently.Energy Management control strategy of HEV is the core and base of development of HEV.The current control strategies for HEV are not perfect and need further optimization.Based on the introduction of the classification of HEV power train system,several control strategies including rule-based energy management strategy,fuzzy logic contro...