毕业设计说明书中文摘要混合动力汽车采用多种能源驱动，不仅继承了传统汽车行驶里程长的优点，同时具备了电动汽车节能环保的特点。优越的能量控制策略能使总能量在发动机和电动机之间得到合理分配，在满足基本性能的条件下，使燃油经济性得到有效的提高。因此优化车辆能量控制策略对解决当前能源危机和实现可持续发展具有重要意义。84689 

本文首先对电辅助控制策略、瞬时优化控制策略和模糊控制策略这三种目前典型的控制策略进行了分析和归纳，确定了模糊控制策略为研究对象。其次，对并联混合动力汽车的能量控制策略关键部件建立了仿真模型，包括发动机模型、电机模型和镍氢电池模型等，并在ADVISOR建立整车仿真模型。然后，结合模糊控制基本理论，设计以总需求转矩、电池SOC和发动机转速为输入变量，发动机需求转矩为输出变量的模糊控制器。并在ADVISOR中对该策略进行仿真。

最后，在标准循环工况UDDC和NEDC下，将模糊控制策略与电辅助控制策略仿真结果进行对比，主要包括能源消耗、发动机工作效率、电动机工作效率、整体系统效率和HC、CO、NOX等尾气排放量的对比。通过对比结果可以看出模糊控制策略在工作效率和尾气排放等各项数据均优于电辅助控制策略，因此可以说明模糊控制策略可以提高燃油经济性，减少车辆尾气排放。

毕业论文关键词  模糊控制策略  ADVISOR  并联混合动力汽车  仿真

毕业设计说明书外文摘要

Title   Research on energy control strategy of parallel hybrid  electric vehicle                                             

Abstract The hybrid electric vehicle is provided with several energy。It not only inherits the advantages of the traditional car with long distance, but also has the characteristics of  electric vehicle with energy saving and environmental protection。Superior energy control strategy can make the total energy allocate between the engine and the motor reasonably, to meet the basic performance,improve the fuel economy。Therefore optimizing the vehicle energy control strategy has a very important practical significance to solve the energy crisis and achieve sustainable development of the environment。

Firstly,this paper analyses and summarizes four typical energy control strategy,including the electric assist control strategy, instantaneous optimization control strategy and fuzzy control strategy ,and sets the fuzzy control strategy as the research object。Secondly, the simulation model is established, including the model of the engine, the motor model and the nickel hydrogen battery model, and establishes the vehicle simulation model in ADVISOR。 Then,design the fuzzy controller,based on the theory of fuzzy control,with the total demand torque,Stage of Charge and engine speed as the input,and the torque of the engine as the output。The strategy is simulated in ADVISOR。

Finally,in the standard cycle conditions UDDC and NEDC,fuzzy control strategy and electric auxiliary control strategy simulation results are compared, including the comparison of energy consumption, the work efficiency of the engine, the work efficiency of the motor, overall system efficiency and HC, CO, NOX and other emissions。The experimental results show that fuzzy control strategy is superior to electric auxiliary control strategy in the data of work efficiency and exhaust emissions。 Therefore, we can find that the fuzzy control strategy can improve fuel economy and reduce vehicle exhaust emissions。

Keywords  fuzzy control strategy  ADVISOR  parallel hybrid electric vehicle simulation