电驱自动变速器换挡系统自锁装置的设计研究  

Design and Research on Electric Drive Automatic Transmission Shift System Self-locking Construction

作　　者：葛海龙[1] 邱权[1] 莫家奇 乔良[1] 刘新宇[1] GE Hailong;QIU Quan;MO Jiaqi

机构地区：[1]上海汽车集团股份有限公司技术中心

出　　处：《上海汽车》2019年第6期27-31,共5页Shanghai Auto

摘　　要：自锁装置对于电驱自动变速器换挡系统的性能起到非常关键的作用。文章通过对换挡系统自锁装置工作时的受力情况建立其动力学理论模型。通过自锁装置挡位保持力的实测值与理论模型计算结果的对比,验证了所建动力学理论模型的准确性。建立某纯电动两挡电驱自动变速器整个换挡系统的Adams仿真模型,并引入自锁装置动力学理论模型。仿真分析结果表明,对于相同挡位保持力,在结构设计允许的范围内,自锁装置拨叉轴凹槽接触角越大、弹簧刚度越小,换挡系统换挡能耗越低。The self-locking construction is crucial for the performance of electric drive automatic transmission shift system.In this paper,the dynamic theoretical model of self-locking construction is established by the force analysis of working process.The dynamic theoretical model is validated by comparison of holding force between theoretic computing and experimental test results.Adams simulation model of shift system is established in which the dynamic theoretical model of self-locking construction is introduced.The simulation result shows that the larger the shift groove angle and the smaller the spring stiffness within the allowable design range,the lower energy consumption of the shift system.

关 键 词：自锁装置 挡位保持力 换挡系统 电驱自动变速器 

分 类 号：U463.2[机械工程—车辆工程]