轻型货车辅助电动系统参数的优化匹配
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摘要
针对轻型货车在运输时难以达到城市排放标准的问题,提出了一种基于传统货车底盘结构的辅助电动系统设计方案。在对国产某轻型货车辅助电动系统进行常规设计的基础上,利用遗传算法以提高整车经济性为目标,对该系统的关键参数进行优化匹配;利用AVL Cruise建立电动系统整车模型并对匹配前后的结果进行了仿真对比。结果表明,续驶里程得到较大提升且百公里耗电量有所降低,尽管损失部分动力性,但优化后整车性能均满足设计需求,验证了优化匹配方法的正确性,为轻型货车辅助电动系统的设计提供了依据。
Targeting at the problem of light-duty trucks being unable to meet the urban emission standards during transportation,the design of an auxiliary electric system based on the traditional truck chassis structure was proposed. Based on the conventional design of a domestic light-duty truck auxiliary electric system,the genetic algorithm was utilized to improve the vehicle's fuel economy as well as to optimize the matching of the system's key parameters. The AVL Cruise was used to build the overall model of the electric vehicle,with which a series of simulations were conducted and its results before and after the matching compared. The results showed that the recharge mileage has been greatly improved and the power consumption per 100 kilometers reduced. Although a part of the power was lost,the performance of the vehicle after the optimization has successfully met the design requirements. The use of this optimization matching method as previously proposed has therefore been verified,and the achievements obtained in this paper can hence be used as a reference and basis for future designs of auxiliary electric systems for light-duty trucks.
Targeting at the problem of light-duty trucks being unable to meet the urban emission standards during transportation,the design of an auxiliary electric system based on the traditional truck chassis structure was proposed. Based on the conventional design of a domestic light-duty truck auxiliary electric system,the genetic algorithm was utilized to improve the vehicle's fuel economy as well as to optimize the matching of the system's key parameters. The AVL Cruise was used to build the overall model of the electric vehicle,with which a series of simulations were conducted and its results before and after the matching compared. The results showed that the recharge mileage has been greatly improved and the power consumption per 100 kilometers reduced. Although a part of the power was lost,the performance of the vehicle after the optimization has successfully met the design requirements. The use of this optimization matching method as previously proposed has therefore been verified,and the achievements obtained in this paper can hence be used as a reference and basis for future designs of auxiliary electric systems for light-duty trucks.
引文
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[2]Zhang H W.Technical progress and development trend of electric vehicles[C].//International Conference on Innovations in Economic Management and Social Science,2017.
[3]吴海龙,孙桓五,吕奇奇.微型城市电动物流汽车动力匹配设计与仿真[J].机械设计与制造,2016(8):27-30+34.(Wu Hai-long,Sun Heng-wu,Lv Qi-qi.Miniatue city electric logistics vehicle power matching and simulation[J].Machinery Design&Manufacture,2016(8):27-30+34.)
[4]高二客,王海林.某型纯电动汽车动力系统参数匹配与优化研究[J].机械设计与制造,2017(8):31-35.(Gao Er-ke,Wang Hai-lin.A study on the parameters matching and optimization of power drive system for pure electric vehicle[J].Machinery Design&Manufacture,2017(8):31-35.)
[5]高建树,陈伟强,刘浩.电动行李牵引车动力参数匹配与车架设计[J].机械设计与制造,2016(10):222-226.(Gao Jian-shu,Chen Wei-qiang,Liu Hao.Dynamic parameters matching and frame design of electric baggage tractor[J].Machinery Design&Manufacture,2016(10):222-226.)
[6]于广鹏,谭德荣,田厚杰.纯电动微型货车动力系统设计及仿真分析[J].农业装备与车辆工程,2015(2):12-15.(Yu Guang-peng,Tan De-rong,Tian Hou-jie.Design and simulation analysis for the powertrain of electric minivan[J].Agricultural Equipment&Vehicle Engineering,2015(2):12-15.)
[7]中国国家标准化管理委员会.GB/T 18488.1-2015电动汽车用驱动电机系统[S].北京:中国标准出版社,2015.(Standardization Administration of the People’s Republic of China.GB/T 18488.1-2015 drive motor system for electric vehicle[S].Beijing:Standards Press of China,2015.)
[8]董先瑜,凤亚娇.应用CRUISE软件进行整车性能计算[J].机械工程师,2016(4):225-228.(Dong Xian-yu,Feng Ya-jiao.Application of CRUISE software for vehicle performance calculation[J].Mechanical Engineer,2016(4):225-228.)
[9]Jin L Q,Chen P F,Liu Y L.Performance simulation for electric vehicle with motorized wheels with cruise[J].Applied Mechanics&Materials,2012(184-185):368-374.