【作者】 张爱国；

【导师】 兰凤崇； 闫长才；

【作者基本信息】 华南理工大学 ， 车辆工程， 2011， 硕士

【摘要】 能源短缺、环境污染、气候变暖是全球汽车产业面临的共同挑战,而传统燃油汽车的节能减排技术已不能满足社会可持续发展的需求。发展新能源汽车已经成为各国汽车工业发展的必然选择,以此为出发点,全球正在推动一次汽车动力技术革命。以美国为主掀起的插电式混合动力汽车研发成为近期解决动力电池能量密度低、车辆续驶里程短的问题,达到城市内应用零排放目的的有效技术途径之一。本文以广东省战略性新兴产业专项资金新能源汽车产业项目为依托,进行插电式混合动力轿车的研究。通过分析比较混合动力汽车动力系统的各种结构入手,比较各种结构形式的混合动力系统的优缺点,最终选定四轮驱动并联式结构来设计该插电式混合动力轿车。根据设计要求需达到的性能指标,结合汽车动力学基础理论对插电式混合动力汽车进行了发动机、电动机以及电池等动力部件的选型和参数设计,最后得出其整车动力系及传动系参数。然后以MATLAB/SIMULINK为工作平台,基于混合动力仿真软件ADVISOR建立了插电式混合动力汽车的发动机、永磁同步电机、锂离子电池以及变速器等模型。并对仿真软件ADVISOR进行了二次开发,详细分析并搭建了四轮驱动混合动力汽车仿真模型。对并联式混合动力汽车的控制策略包括电力辅助控制策略、动态自适应控制策略、模糊逻辑控制策略等进行研究,并详细分析了电辅助式控制策略中五种驱动模式,在此基础上提出了优化的控制策略,使其更适合于本文所设计的插电式混合动力轿车。从仿真结果可以看出,整车的动力性和燃油经济性等与设计要求所需达到的目标基本符合,所匹配的发动机、电机和电池工作状态良好,基本能工作在最佳效率区域。同时,通过样车控制策略,可以实现合理的功率分配和发动机、电机的起停,制动能量回收,并能保证电池的荷电状态SOC始终维持在最佳区域内,电池容量的选择能满足续驶里程的要求。更多还原

【Abstract】 Energy shortage, Environmental pollution, global warming are the common challenges facing the automotive industry, and the traditional internal combustion engine vehicles cannot meet the needs of sustainable development of society. So the new energy vehicles have become an inevitable choice for automobile development, for this, the world is driving a revolution in automotive industry. Recently, America focus on plug-in hybrid electric vehicle for solving the problem of battery’s low energy density and short driving range, and this is an effective way to attain zero-emission in the city.This paper was based on the special funds of Guangdong’s strategic new industries, research a plug-in hybrid electric vehicle. By analyzing a variety of hybrid electric vehicle power system structure, comparing the various advantages and disadvantages of hybrid systems, finally selected four-wheel parallel structure for the plug-in hybrid electric vehicle.According to the design requirements, combining with the basic theory of vehicle dynamics, choose the type of engine, motor and battery for the plug-in hybrid vehicle, and design their parameters, and finally got the vehicle powertrain and driveline parameters. Then on the software MATLAB / SIMULINK platform, basing on the hybrid simulation software ADVISOR established the models of low-powered engine, permanent magnet synchronous motor, lithium ion battery and transmission. In the hybrid simulation software ADVISOR, the thesis did a secondary development, and builded a four-wheel drive model. For parallel hybrid electric vehicle control strategy, this paper researched electric auxiliary control strategy, adaptive control strategy and fuzzy logic control strategy, analysed the five drive modes of electric auxiliary control strategy, and designed an optimal control strategy based on it, make it more suitable for the design of this plug-in hybrid electric vehicle.From the simulation result, it could be seen that vehicle dynamic performance and fuel economy can meet the design requirements. The matching engine, motor and battery work in good condition, mostly are in the best efficiency zone. At the same time, through the control strategy, some goals such as proper power distribution, start and stop of engine and motor, brake energy recovery could be fully realized, and ensure that the battery state of charge is always maintained in the best area. Besides, the selection of the battery’s capacity could meet the demand of driving range.更多还原