DCT车辆升挡过程中的扭矩控制  

A Study on Torque Control of a DCT Vehicle during Upshift

作　　者：张俊祥[1] 陈勇[1] 罗大国[1] 刘文忠[1] 赵福全[1] 

机构地区：[1]浙江吉利汽车研究院有限公司

出　　处：《汽车技术》2013年第8期7-9,57,共4页Automobile Technology

摘　　要：为改善双离合器自动变速器(DCT)车辆升挡时的换挡品质,在分析车辆综合一体化控制的基础上,明确了各电控单元在车辆升挡过程中的主要作用,分析了DCT车辆升挡过程的控制时序,提出了DCT车辆升挡过程中发动机扭矩的控制方法和控制策略。实车测试结果表明,换挡冲击减小且较好的控制了离合器的滑摩功,从而验证了控制策略的正确性与可行性。To improve the upshifi quality of a DCT vehicle, the main function of each electronic control unit is defined during vehicle upshift based on the analysis of vehicle integration control, the upshift control sequence is fully analyzed for the DCT vehicle, and control method and strategy of engine torque during vehicle upshift is presented. Vehicle test results show that shift impact is reduced and clutch friction work is controlled effectively, thus validating the correctness and feasibility of this control strategy.

关 键 词：双离合器自动变速器 扭矩控制 一体化控制 控制策略 

分 类 号：U463.212[机械工程—车辆工程]