【摘要】 为了有效改善装有AMT的混合动力电动汽车(HEV)换挡品质和加速性能,分析了换挡过程的协调控制方法,在Matlab/Si mulink平台上建立了换挡仿真模型,并对换挡过程协调控制进行了仿真。研究结果表明:在各种状态切换过程中,采用仿真模型能够对HEV换挡过程协调控制进行模拟,在Ⅰ挡升Ⅱ挡换挡过程中,动力中断的时间仅为1.2 s,保证了动力传递的平稳性;提出的改善车辆加速性能的改进措施与优化控制策略,使车辆0～100 km.h-1加速时间由14.82 s降低到12.39 s。更多还原

【Abstract】 For improving shifting quality of hybrid electric vehicle(HEV) with automated manual transmission(AMT),an integrated gear shifting control method was introduced.Five measures of improving vehicle’s accelerating performance were provided to optimize shifting control strategies.A shifting simulation model was established on the platform of Matlab/Simulink,and the simulation of integrated gear shifting control was performed.The result shows that the model is capable of simulating the gear shifting process under various state-switches.The time of power break-up is only 1.2 s in the gear shifting process from gear Ⅰ to gear Ⅱ,so the method ensures power smooth transfer.The accelerating time of 0~100 km·h-1 is improved from 14.82 s to 12.39 s,so the measures are effective.1 tab,11 figs,12 refs.更多还原