换挡力对电机-变速器耦合系统换挡冲击的影响

摘要

通过对电机-变速器耦合系统进行动力学建模和仿真分析，探讨换挡力对其换挡冲击的影响。基于对换挡冲击产生机理的分析，引入Poisson碰撞建立换挡冲击模型。运用所建立的模型，在Matlab/Simulink环境下进行仿真试验，得到换挡力对换挡冲击影响曲线，并揭示不同啮合情形的产生机理。对非同步打齿现象进行了讨论，推导出避免非同步打齿的临界换挡力。%By dynamics modeling and simulation analysis of motor-transmission coupling system, we investigate the influence of shift force on shift impact. Based on the analysis of mechanism generating shift impact, we introduce the Poisson Impact model to derive shift impact model. With the model constructed, we make simulation test in Matlab/Simulink and derive the curve shift force affecting shift impact, and also discover different engaging situations. Finally, the critical shift force to avoid asynchronous gear clash phenomena is derived.