The Research Of Modeling And Simulating Using AT Parallel Hybrid Electric Vehicle Drivetrain System

Hybrid Electric Vehicles (HEV) combines the advantages of conventional engine-driven vehicles and pure Electric Vehicles (EV). This provides satisfied driving performance and lower exhaust emission. Thus, HEV is a feasible solution to solve the energy crisis and environmental pollution problems.There are mainly three hybrid driving structures for the HEV at present: Series Schedule, Parallel Schedule and Series-Parallel Combined Schedule. The structures and features of the three hybrid power systems are analyzed in this paper. The different structures of the parallel type are introduced and analyzed emphatically. 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 2002 is described in addition. A novel multi mode HEV systematic model is then presented basing on the research of Parallel HEV of Advisor 2002 , which focuses on its drive system's structure and control strategy. The hybrid configuration proposed in the paper features saiou automatic transmission for an AT Parallel mode in addition to lay and realizes four operation modes in this 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 2002; then, use engine data, electric storage data , motor data of dong feng EQ7200 in AT parallel model, and simulate, analyze, in the end ,receive a good result ,and prove that the AT parallel Schedule is feasible.The novel design shows improvement over parallel HEV of Advisor 2002 and is validated as a viable HEV design.