【作者】 徐峰；

【导师】 曾小华；

【作者基本信息】 吉林大学 ， 车辆工程， 2013， 硕士

【摘要】 可外接插电式混合动力汽车(Plug-in hybrid electric vehicle)，简称PHEV。可外接插电式混合动力汽车是在传统混合动力汽车基础上开发出来的一种新型新能源汽车，由于可外接插电式混合动力汽车可以更多的依赖动力电池驱动汽车,可以认为是一种由混合动力汽车向纯电动汽车发展的过渡性产品，以成熟的燃油发动机与电池的组合动力作为能源。平时上下班用车，一般行驶里程都比较短，采用纯电动模式完全能满足使用要求，如果周末长途旅游，小功率内燃机的配备使PHEV在电池电量低时可以使用内燃机继续行驶，可以达到传统内燃机汽车一样的续航能力。这样，PHEV更多的是在纯电动模式下工作，二氧化碳和氮氧化物排放非常少，在纯电动车动力电池技术未取得突破性进展前，PHEV将是一种良好的过渡方案。目前各大汽车厂商已相继推出PHEV车型或研发计划，PHEV将成为下一步开发热点。与传统HEV相同，Plug-in混合动力汽车结构类型主要分为并联式、串联式和混联式三种结构，本文通过对比以上三种驱动方案的优缺点，考虑到串联驱动方式结构较为简单，并且发动机可以工作在燃油经济性较好、排放较优的区域，选择串联式作为该款PHEV混合动力汽车的结构型式。电池、电机和电控这三方面一直是混合动力汽车开发中的关键问题，车载电池容量决定了汽车纯电动续航里程，但电池容量越大重量和体积就越大，同时根据对一般居民的用车习惯的调查，也50%以上日均行驶里程少于40km，80%以上日均行驶里程少于80km。基于这些设定了原型车目标纯电动续航里程为64公里，计算得出要搭载13kwh的电池。分析研究了不同种类的动力电池材料和工艺的不同，以及性能的优劣，就目前电池技术发展状况，锂离子电池具有较大的优势，在混合动力汽车上应用较多。根据整车动力性指标对其驱动电机和发动机-发电机组（APU）进行了匹配，确定了发动机的功率和排量；发电机的额定电压和峰值功率；驱动电机的额定电压、额定功率、峰值转矩和最大转速等参数。在比较了各种串联式混合动力汽车控制策略之后，结合Plug-in混合动力汽车要求有一定的纯电动续航里程，配备较大容量动力电池和较小功率发动机，具备开关型能量管理策略的硬件条件，同时开关型能量管理策略下发动机的燃烧充分，排放低，基于以上考虑，所以采用了开关型能量管理策略。本文以MATLAB和ADVISOR仿真软件为平台，针对串联式PHEV混合动力汽车原型车，编制相应的程序和数据输入文件，进行仿真研究，将仿真测试得到的结果与最初设定目标相比，仿真结果表明主要部件技术参数及开关型能量管理策略设计合理，整车性能达到设计目标。论文最后总结归纳了本课题研究的结论和创新点，对迸一步研究和探讨提出了展望。更多还原

【Abstract】 Plug-in Hybrid Electric Vehicle (PHEV), a new energy-saving and environmentalvehicle, derives from the traditional HEV. PHEV can be seen as an intermediate technologybetween BEV and HEV, which is an oil-electricity mixed hybrid electric vehicle with twooperation modes．While batteries are fully charged，it can run on pure electric mode whichcan meet the on—off work without any oil．During long distance traveling，it will switch tohybrid mode when state of charge(soc) reaches the low limit．Compare with the internal combustion engine automobile and conventional HEV, thePHEV drives the automobile more depend on battery, so its fuel economy got the furtherimprovement, the carbon dioxide and the nitrogen oxides exhaust also less. It can indeed beconsidered as either a BEV supplemented with an internal combustion engine (ICE) toincrease the driving range, or as a conventional HEV where the all-electric range is extendedas a result of larger battery packs that can be recharged from the grid. PHEV can be seen as akind of good interim technology before the battery developments (performance and cost) didnot obtain successes. The auto conglomerates have already released PHEV car types ordevelopments plans at present, as a direction of development，PHEV has a wide market.A plug-in hybrid electric vehicle can be designed with the same types of technologicalarchitecture as current hybrid vehicles, namely series-hybrid, parallel-hybrid, or combinedseries-parallel hybrid。Firstly，a serial hybrid architecture is selected after comparing threekinds of architectures．The serial hybrid architecture has the simplest structure and heinternal combustion engine can work in the best fuel economy and emission range.For PHEV, the three key problems are battery, motor and Energy management.Considering the investigation report that around half the passenger cars in the U.S. drives less than25miles (40km) a day and80%less than50miles (80km), a64km AER wasassumed. The energy capacity13kwh is required by64km AER. The volume and mass ofon board battery have to be considered, The batteries have different category because of thedissimilarity of the material and craft, there is very big dissimilarity in the specific energy(Wh/kg),energy density (Wh/l), Lifetime, safety, costs and environmental protection etc.Li-ion batteries have been testing intensively worldwide and are already used on manyPHEV prototypes. Powertrain parameters are calculated according to the dynamicrequirements．The series thermostat control strategy has been used because the fuel converter operatesat the most efficient speed and torque level. The fuel converter turns on if the SOC is belowthe low limit, cs_lo_soc. The fuel converter remains on until the SOC reaches the high limit,cs_hi_soc, if its previous state was on. After reaching the high limit, it turns off.The simulation results show that the energy distribution strategy can perform features ofa PHEV．Powertrain parameters can meet the dynamic requirements．In the end，conclusions and new points in the project are summarized and the researchin the next step is also proposed．更多还原