Research on parameters matching of parallel hybrid electric vehicle powertrain

Because of lower fuel consumption and emissions, especially unlimited drive mileage, hybrid electric vehicle (HEV) has long term potential for future main stream vehicle. Based on conventional vehicle CHERY A5, this paper analyzes the framework of powertrain and control strategy of the parallel hybrid electric vehicle. A method of powertrain parameters matching is presented. On the basis of engineering analysis and theoretic calculation, the selection and related parameters design of engine, batteries, motor and the gear ratios of driveline are ascertained. Simulation of the vehicle performance is carried out based on ADVISOR. The results indicate that the dynamic performance and fuel economy of whole vehicle are satisfied.