双离合变速器无动力降挡控制策略  

Dual Clutch Transmission Power Off Downshift Control Strategy

作　　者：宋秀锋 Song Xiufeng(Shanghai Automobile Gear Works,Shanghai 201800,China)

机构地区：[1]上海汽车变速器有限公司,上海201800

出　　处：《传动技术》2023年第1期13-19,共7页Drive System Technique

摘　　要：降挡控制是双离合器变速器控制中的关键技术之一。提出了3种无动力降挡的控制策略,分别为基于离合器扭矩调速的控制策略、基于发动机扭矩请求调速的控制策略及基于发动机转速请求调速的控制策略,灵活的降挡控制策略可以匹配不同的客户,同时满足不同驾驶模式下的平顺性、经济性及换挡时间要求。Downshift control is one of the key technologies in dual clutch transmission control.Three control strategies for power off downshift are proposed,which are the speed regulation control strategy based on clutch torque,the speed regulation control strategy based on engine torque request and the speed regulation control strategy based on engine speed request.The flexible downshift control strategy can match different customers,meeting the requirements of smoothness,economy and shifting time under different driving modes.

关 键 词：双离合器 无动力降挡控制 离合器扭矩控制 扭矩请求 转速请求 

分 类 号：U463.212[机械工程—车辆工程]