Analyzing The Power And Economic Of Hybrid Electrical Vehicle

With the deterioration of energy and environment,people realize that saving energy and protecting environment is very important.HEV is a good way to reach this goal.During the recent 20 years,the technology in this field is developed quickly.Such as "Coaster","Prius" for Toyota,Japan."EV-1"for GM."Kangoo" for Renault,France,and so on,many kinds of HEV are on sale.Year 1999,Toyota has sold Prius for more than thirty thousand.As the law become strict, the market proportion for HEV increases quickly,becoming an important developing new vehicle. As the urban bus is the most public vehicle,using hybrid is also necessary.In this article,three different kinds of hybrid drive type are analyzed,the hybrid technic nowadays and developing tendency are introduced.With the real urban bus driving way,the proper way for urban bus is analyzed.Finally,the PSHEV is determined to use for the bus design.With the status of urban driving,the power system of the PSHEV is designed,as well as the control strategy.With the china urban bus stardand driving cycle,the power stystem and the control strategy are put into the Excel,the status of engine,motor and generator through the china urban bus stardand driving cycle are analyzed.By analyzing components of the drivetrain,a modeling method based on ADVISOR is proposed.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 study of this paper would be helpful to reduce the period of design for HEV and supply the reference for drivetrain design,control strategy and vehicle's performance evaluation.