Hybrid Electric Vehicle System Design And Simulation

The performance request and systematic structure of Hybrid Electric Vehicle are introduced in this paper. The working basis and application of HEV specialized software Advisor are described in addition. A novel multi_mode HEV s systematic model is then presented basing on the research of Toyota' s Prius HEV, which focuses on its drive system' s structure and control strategy. The hybrid configuration proposed in the paper features a planetary gear train for an electric CVT mode in addition to lay-shaft gears for multiple speed ratios and realizes six operation modes in a simple structure. The vehicle control strategy is established to choose the most appropriate operation mode and optimize the overall vehicle operation involving the engine in terms of fuel economy and emission levels. The transmission and control system models are then established on the Matlab/Simulink platform and the overall system is simulated and analyzed in Advisor. The novel design shows improvement over Prius and is validated as a viable HEV design.