1.合肥工业大学 机械工程学院, 安徽 合肥 230009
2.合肥工业大学 汽车工程技术研究院, 安徽 合肥 230009
王淑旺(1981— ),男,安徽合肥人,博士,副教授,主要研究方向为汽车制造技术与智能装备、新能源汽车电驱动系统。
刘健(1994— ),男,安徽天长人,硕士研究生,主要研究方向为新能源汽车电驱动系统。
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王淑旺,刘健,马志林等.基于NEDC的纯电动汽车两挡变速器传动比设计[J].机械传动,2020,44(01):79-83.
Wang Shuwang,Liu Jian,Ma Zhilin,et al.Design of Electric Vehicle Two-speed Transmission Ratio based on NEDC[J].Journal of Mechanical Transmission,2020,44(01):79-83.
王淑旺,刘健,马志林等.基于NEDC的纯电动汽车两挡变速器传动比设计[J].机械传动,2020,44(01):79-83. DOI: 10.16578/j.issn.1004.2539.2020.01.013.
Wang Shuwang,Liu Jian,Ma Zhilin,et al.Design of Electric Vehicle Two-speed Transmission Ratio based on NEDC[J].Journal of Mechanical Transmission,2020,44(01):79-83. DOI: 10.16578/j.issn.1004.2539.2020.01.013.
针对纯电动汽车两挡变速器传动比设计问题,在车辆参数与电机参数都确定的条件下,以传动比为设计变量,以汽车在NEDC工况下的百公里耗电量和动力性设计要求分别建立优化目标函数和约束条件,利用改进和声搜索算法,得到约束条件内优化模型的最优解。结果表明,所选用的两挡变速器基本满足设计要求,与原始单挡相比,该方法得到的设计结果在一定程度上提高了汽车的经济性。
Aiming at the design of transmission ratio for two-speed transmission of pure electric vehicle, under the condition that parameters of vehicle and motor are all determined, choosing the transmission ratios as the design variables, the optimization objective function and constraint conditions are established according to the power consumption of 100 kilometers under NEDC(The New European Driving Cycle) working condition and the dynamic performance design requirements of vehicle, then the improved harmony search algorithm is used to calculate the optimal solution of the optimization model under constraint conditions. The result shows that the selected two-speed transmission basically meets the design requirements. Compared with the original single-speed transmission, the design results obtained by this method improve the economy of the vehicle to a certain extent.
NEDC工况 纯电动汽车 传动比 动力性 经济性
NEDC working conditionPure electric vehicleTransmission ratioDynamic performanceEconomy
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