纯电动汽车三参数换挡控制策略研究  

Research on Three-Parameter Shift Control Strategy of Battery Electric Vehicle

作　　者：杜娟 廖伟 王尚林 DU Juan;LIAO Wei;WANG Shanglin(School of Mechanical&Automotive Engineering,Liaocheng University,Liaocheng 252059,China)

机构地区：[1]聊城大学机械与汽车工程学院,山东聊城252059

出　　处：《现代车用动力》2024年第1期7-12,29,共7页Modern Vehicle Power

基　　金：长安大学中央高校基本科研业务费(300102221503/K21LC0301);面向工程教育认证的车辆工程专业《汽车结构与性能实验》课程教学改革研究(311162386)。

摘　　要：为了提高纯电动汽车的动力性和经济性,开发了某两挡自动变速器(AMT)的三参数换挡策略,以改善电动机的运行工况,提高驱动电动机工作效率。基于Matlab-Simulink建立了整车仿真模型。将电池荷电状态(SOC)参数引入换挡策略判断模块,并制定了动力性优先和经济性优先的换挡策略。仿真结果表明,采用三参数换挡策略的纯电动汽车具有更好的动力性和经济性:百公里加速时间和能耗都得到改善。通过新欧洲测试(NEDC)、城市道路循环(UDDS)工况仿真发现,三参数换挡策略比两参数换挡策略经济性均有提升。In order to improve the power and economy characteristic of pure electric vehicles,a three parameter shifting strategy for a twospeed automated manual transmission(AMT)has been developed to improve the operating conditions of the electric motor and enhance the efficiency of the driving electric motor.A vehicle model was established based on Matlab-Simulink.The battery SOC was supplementary to respectively formulate the dynamic-oriented and economic-oriented shifting strategies.The simulation results indicate that the vehicle has a better power and economy characteristic whilst adopting the three-parameter shifting strategy.The acceleration time and energy consumption can be improved remarkably.The vehicle's economic performance with the three-parameter shifing strategy is promoted compared with the two-parameter shifing strategy,based on the NEDC and UDDS.

关 键 词：纯电动汽车 两挡AMT变速器 三参数换挡策略 

分 类 号：U469.72[机械工程—车辆工程]