双离合自动变速器同步器监控策略开发  

Development of Monitoring Strategy for Synchronizer in Dual Clutch Transmission

作　　者：李鸿魁[1] 鲁统利[1] 张建武[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《汽车工程》2017年第2期187-192,158,共7页Automotive Engineering

基　　金：国家自然科学基金(51175326)资助

摘　　要：由于双离合自动变速器同步过程的复杂性,开环控制策略无法获得良好的控制效果。为改善同步器的控制性能,将同步过程分为6个阶段并进行了详细分析,建立了各阶段的数学模型。根据同步过程的动力学特点,针对同步器模型提出了一种监控策略,将接合套的位移和输入轴与输出轴转速代入各阶段的动力学方程来估计同步器所处的阶段,并设计不同的子控制器来控制各阶段的换挡同步力。实车对比实验结果表明,所提出的监控策略能有效降低同步延迟,减少了二次冲击的影响,有较高的工程应用价值。Due to the complexity of the synchronization process of dual clutch transmission, open loop con-trol strategy can＇t achieve good effects. For improving the control performance of synchronizer, the synchronization process is divided into six phases for detailed analysis. The mathematical model for each phase is set up, and a mo-nitoring strategy for synchronizer model is proposed based on the dynamic features of synchronizing process. The dis-placement of engaging sleeve and the rotating speeds of input and output shafts are substituted into the dynamics e-quation for each phase to estimate the phase of synchronizer, and different sub-controllers are designed for control-ling the shifting force in each phase. The results of real vehicle comparative test show that the monitoring strategy proposed can effectively reduce synchronizing delay and the reverse effects of secondary shock, highly worthy of en-gineering application.

关 键 词：双离合自动变速器 同步器 监控策略 

分 类 号：U463.2[机械工程—车辆工程]