Study on Fuzzy Logic Control Strategy of ISG hybrid system

The control strategy is one of the key technologies for hybrid electric vehicle, for it directly affects the performance of the whole vehicle. In ISG hybrid system, the torque from engine and motor are coupled at one shaft. The configuration and basic requirements of ISG hybrid system are analyzed in detail in this paper. An Electric Assist Control Strategy based on the ISG HEV is proposed and the Fuzzy Logic Control Strategy is formulated. Based on the software Advisor, the subsystem models of control strategy are established, and the performance of the ISG hybrid system is simulated. It concludes that the control strategy is reasonable, and the performance and fuel economy are better comparing with the conventional vehicle.