摘要
针对履带车辆机械式自动变速器(Automated Mechanical Transmission,AMT)因换挡冲击大而造成的换挡打齿、顶齿等问题,在分析换挡同步过程及其评价指标(换挡同步时间、冲击度和滑磨功)并建立数学模型的基础上,提出了基于极小值原理的换挡同步过程最优控制方法。以同步阶段冲击度和滑磨功为优化目标,建立了综合最优目标泛函并进行优化,得到了同步过程综合最优换挡力变化规律。最后,利用MATLAB/Simulink对该方法进行了仿真验证,结果表明:该方法能有效改善履带车辆换挡品质,提高换挡平顺性。
Aiming at the problems of broken tooth and apical tooth caused by large gear shift impactfor tracked vehicle Automated Mechanical Transmission（AMT）,based on the analysis of the gear shift synchronization process and its evaluation indicators（shift synchronization time,impact degree,and sliding friction power）,and establishing mathematical model,an optimal control method of gear shift synchronization process based on the minimum principle is proposed. Taking the impact degree and the sliding friction power of synchronization phase as optimization objective,a comprehensive optimal objective functional is established and optimized to obtain the comprehensive optimal shifting force change law in the synchronization process. Finally,the method is verified by MATLAB/Simulink,the simulation results show that this method can improve the shift quality and smoothness of tracked vehicle.
作者
赵汗青
赵伟
王江峰
刘红彬
陈伟
ZHAO Han-qing;ZHAO Wei;WANG Jiang-feng;LIU Hong-bin;CHEN Wei(Military Exercise and Training Center,Army Academy of Armored Forces,Beijing 100072,China;Weapons and Control Department,Army Academy of Armored Forces,Beijing 100072,China;Vehicle Engineering Department,Army Academy of Armored Forces,Beijing 100072,China)
出处
《装甲兵工程学院学报》
2018年第4期51-56,共6页
Journal of Academy of Armored Force Engineering
基金
军队科研计划项目
关键词
履带车辆
机械式自动变速器
同步器
极小值原理
最优控制
tracked vehicle
Automated Mechanical Transmission （AMT）
synchronizer
minimum prin-ciple
optimal control
