湿式双离合器自动变速器的升档控制  

Up-shift control in wet double clutch transmission

作　　者：陆中华[1] 程秀生[1] 冯巍[1] 

机构地区：[1]吉林大学汽车动态模拟国家重点实验室,长春130025

出　　处：《农业工程学报》2010年第5期132-136,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"863"高技术研究发展计划资助项目(2006AA110109)

摘　　要：为了解决湿式双离合器自动变速箱的换档冲击和离合器磨损问题,在对换档品质评价指标分析的基础上,研究了温度对湿式离合器压力传递特性的影响,提出了湿式双离合器的压力控制方法。并以一档升二档为例,制定了具体的升档控制策略,讨论了发动机参与控制对双离合器自动变速箱换挡品质的影响。最后应用于实车试验中,在中、小两种节气门开度的状态下均得到了理想的换挡效果,车速变化柔和,无明显冲击,油温变化小。验证了湿式双离合器的压力控制方法正确,换档控制策略合理。In order to solve the problems of shifting jerk of dual-clutch automatic transmission and clutch fray,the characteristic of dual-clutch pressure transmitting during shifting was studied based on the analysis of shifting quality evaluation,and method to control the clutch pressure was proposed.Taking up-shift from 1 to 2 for example,up-shifting control strategy was drawed.The effection on shifting quality of dual-clutch automatic transmission in the presence of engine was discussed.After applied the introduced method into the real car test under different throttle positions,ideal shifting quality was achieved.The result indicated that the speed of vehicle changed gentlely without distinct impact,and the oil temperature hardly changed.This essay verifies the validity of the proposed method of dual-clutch pressure control and the strategy of shifting control.

关 键 词：离合器 变速箱 控制 DCT 湿式离合器 升档策略 

分 类 号：U463.212[机械工程—车辆工程]