【摘要】 为缩短研发周期、降低研发成本，提高模型可信度，基于Simulink/Simscape建立混合动力汽车动力系统物理仿真模型，包括机械系统、控制系统和驱动系统动力学模型。建立控制器局域网络(Controller Area Network, CAN),实现动力系统各模型之间的通信，提高仿真模型复杂度与精度。在新欧洲标准行驶循环(NEDC)测试工况下，采用实车参数对模型动力系统性能和燃油经济性进行分析，探讨不同工况对模型的影响。仿真结果表明，建立的模型符合实际汽车动力系统动态特性，CAN总线的实时性和准确性满足实际需求。更多还原

【Abstract】 In order to shorten the development period, reduce the development cost and improve the credibility of the model, the physical simulation model of the hybrid electric vehicle power system was constructed based on Simulink/Simscape. The model consisted of three parts: mechanical system, control system and drive system dynamics. The Controller Area Network(CAN) was developed to realize the communication between various models of the power system and increase the complexity and accuracy of the simulation model. Under the New European Driving Cycle(NEDC) test condition, the dynamic system performance and fuel economy of the model were analyzed by using real vehicle parameters, and the influence of different working conditions on the model was discussed. The simulation results show that the dynamic characteristics of the model conform to the actual automobile power system, and the real-time performance and accuracy of the CAN bus meet the actual requirements.更多还原