中文摘要：

混合动力汽车转矩优化协调控制的研究中,由于混合动力汽车（Hybrid electric vehicle,HEV）模式切换过程中发动机转矩响应慢,使发动机与电机转矩不能实时响应,引起转矩波动。为解决上述问题,提出了一种＂电子节气门模糊滑模控制＋电机转矩补偿＂协调控制策略。在建立电子节气门模型的基础上,设计了模糊滑模控制算法,以改善发动机单独驱动工作模式下的转矩输出。在此基础上,为满足整车的动力需求,设计了在发动机及ISG（Integrated Starter/Generator）电机混合驱动工作模式下的ISG电机转矩对发动机转矩进行动态补偿的控制策略。仿真结果表明,改进算法能有效改善发动机的动态性能,发动机的工作效率提高至38.6%,且整车转矩及速度响应能力均有所提高。

英文摘要：

In order to improve the torque ripple problem caused by the engine slow torque response in the mode switch process of Hybrid Electric Vehicle（ HEV）,and the problem that engine and motor torque can not be response to the demand torque in real-time,this paper proposed a coordinated control strategy of‘electronic throttle fuzzy sliding mode control ＋ motor torque compensation＇. Establishing the electronic throttle model as a basis,the fuzzy sliding mode control algorithm was designed to improve the output torque of engine in engine alone work mode. On this basis,to achieve the vehicle power demand,the control strategy,using Integrated Starter Generator（ ISG） motor torque to compensate the engine torque,was designed in the engine and ISG motor compound work mode. Simulation results show that the proposed algorithm can effectively improve the dynamic performance of engine,the engine efficiency has reached 38. 6%,and the vehicle torque and speed response ability are all improved.