电动汽车无同步器AMT挂挡冲击分析与优化控制  

Gear Engagement Impact Analysis and Optimization Control of AMT Without Synchronizer for Electric Vehicles

作　　者：吴斌[1] 王耀 WU Bin;WANG Yao(College of Energy and Power Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学能源与动力工程学院,北京100124

出　　处：《北京工业大学学报》2022年第8期860-868,共9页Journal of Beijing University of Technology

基　　金：北京市朝阳区协同创新项目(CYXC1705);国家重点研发计划资助项目(2017YFB0102403)。

摘　　要：针对电动汽车无同步器机械自动变速器(automated mechanical transmission,AMT)挂挡冲击问题,建立了包括驱动电机、AMT接合套与接合齿圈、整车等效转动惯量的两挡电动汽车传动系统模型,对挂挡过程进行了动力学分析.理论分析及台架试验验证结果表明,接合套与接合齿圈初始接触位置、接合套的轴向速度是影响挂挡冲击的主要因素,无论接合套与接合齿圈初始顺齿接触或逆齿接触均会产生冲击.为实现快速、低冲击的挂挡目标,设计了一种可以自适应接合套与接合齿圈初始接触位置的挂挡控制策略,台架试验结果表明挂挡冲击得到了有效控制.Aiming at the gear engagement impact of automated mechanical transmission(AMT)without synchronizer for electric vehicles,a transmission model including the driving motor,the sleeve,the engagement gear,and the equivalent moment of inertia of electric vehicles was established in this paper,and the dynamic characteristics of the gear engagement process were analyzed.Theoretical and experimental analysis show that the position and axial velocity of the engagement sleeve in the first contact are the important factors affecting the impact of gear engagement.The gear engagement impact occurs on both the forward and reverse teeth.In order to achieve the goal of fast and low impact gear engagement,a gear engagement control strategy that can adapt to the initial contact position of the sleeve and the engagement gear was designed,and the results of verification experiment show that the gear engagement impact is effectively controlled.

关 键 词：电动汽车 机械自动变速器 无同步器 挂挡冲击 控制 挂挡品质 

分 类 号：U463.212.41[机械工程—车辆工程]