中文摘要：

为提高履带车辆整车动力性能,针对某液力机械传动履带车辆提出了一种换挡规律优化方法。在MATLAB/Simdriveline环境下,构建针对液力机械综合传动装置的动力学模型,制定出针对不同工况的优化设计方案,运用优化软件iSight进行仿真模型的调用和换挡点的优化,得到了优化后的换挡规律。仿真分析表明,该方法对提高车辆动力性和换挡平顺性有理论和实际意义。

英文摘要：

A kind of automatic shift schedule optimization method was provided for a tracked vehicle with hydrodynamic-mechanical transmission in order to improve its dynamic performance.The dynamic model of the transmission assembly was built in MATLAB/Simdriveline environment,and optimum shift schedule was derived by using iSight software to call the dynamic model above,then the gear-shifting schedule was achieved after optimization.Simulation results show that the method is significant to improve dynamic performance and gear-shifting smoothness theoretically and practically.