微型电动车无动力中断换挡控制试验研究

Experiment study on uninterrupted gear shift control in micro electric vehicle

针对AMT(机械式自动变速器)存在的换挡动力中断问题,提出了一种适合微型电动车的双电机(包括驱动电机和辅助电机)AMT驱动系统,同时搭建了试验台架。根据无动力中断换挡的控制要求,应用Mtalab/Simulink软件设计了一种基于驱动电机和辅助电机输出转矩协同控制的换挡策略,并下载到快速原型控制系统中进行换挡试验。结果表明,设计的双电机AMT驱动系统能实现无动力中断换挡,换挡过程中系统输出轴的转速波动较小。

For problem of gear shift power interrupted in AMT(Automated Mechanical Transmission)present,a dual-motor(included drive motor and auxiliary motor)AMT propulsion structure to micro electric vehicle is put forward,moreover thetest bench is constructed.According to control demand of uninterrupted gear shift,a strategy which coordinate control outputtorque on dual motor is designed by Matlab/Simulink software,and made gear shift experiments by download controlprogram in rapid prototyping system.The results of test indicated that,the uninterrupted gear shift of dual-motor AMTsystem is achieved,and the system output shaft speed fluctuation are smaller during gear shift.