混合动力汽车性能仿真研究

为预测和分析混合动力汽车的性能，以某型混合动力轿车为研究对象，以现有的研究成果为基础，基于系统的构成和工作原理，应用系统仿真软件Matlab／Simulink，开发完成了该型混合动力轿车的性能仿真模型。仿真分析了其速度特性、电池的荷电状态(SOC)、燃油经济性和排放性能。结果表明，所开发的仿真模型能够很好跟踪循环工况，从而验证了仿真模型的正确性和有效性，也为进一步研究整车控制策略和控制方式，完成性能的优化匹配和协调控制，提高整车性能奠定了一定的基础。

Performance Simulation of a Hybrid Electric Vehicle

Based on the configuration and the principle of a kind of parallel hybrid electric vehicle, a simulation system has been developed utilizing the Matlab/Simulink toolbox to predict and analyze the performance of the vehicle. A logic-based control strategy is assessed. Simulation results, including the speed of the vehicle, the state of charge of the battery, fuel economy and the emission performance, etc., over the EPA Urban Dynamometer Driving Schedule, demonstrate the potential of the simulation model. This study is helpful to the design of a hybrid electric vehicle and prediction of its performance.