ISG轻度混合动力电动汽车控制策略的制定及仿真

The Control Strategy and Simulation Analysis of ISG Mild Hybrid Electric Vehicle

分析了ISG轻度混合动力电动汽车(ISG-MHV)的结构和功能,制定了发动机单独驱动模式、混合驱动模式、行车充电模式、再生制动模式的控制策略。在相关分析和设计的基础上,利用Matlab/Simulink对整车关键部件进行了建模。对所匹配的车辆动力性进行了仿真,并对其在NEDC循环工况下的燃油消耗量进行仿真计算。与动力性相似的普通汽车的燃油经济性进行对比,说明了ISG轻度混合动力电动汽车动力匹配的合理性、高效性和控制策略的有效性。仿真结果表明:该控制策略使ISG轻度混合动力汽车的油耗低于传统动力汽车。

A brief analysis of the structure and function of ISG Mild Hybrid Electric Vehicle are discussed in this thesis.The control strategy of engine drive lonely,power assist,power regeneration,regenerative braking are made.Matlab/Simulink is used to build simple model of vehicle based on theoretical analysis and relative reference.Furthermore,the fuel economy on the NEDC driving cycle and dynamic performance of the ISG Mild Hybrid Electric Vehicle are simulated.Contrasting with fuel economy of the conventional vehicle which has a similar dynamic performance,it illustrated the effectiveness of ISG Mild Hybrid Electric Vehicle power matching is reasonable,efficient and it proved the effectiveness of control strategies.The simulation results show the adoption of control strategy to make the ISG Mild Hybrid Electric Vehicle fuel consumption is superior to the traditional automobile.