超越离合器辅助换挡变速器的换挡控制研究  

Study on Shift Characteristics of Overrunning Clutch Shift-assistant Transmission

作　　者：李罡[1,2] 黄向东 杨勇[2] 赵克刚 LI Gang;HUANG Xiangdong;YANG Yong;ZHAO Kegang(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China;Automotive Engineering Institute,Guangzhou Automobile Group Co Ltd,Guangzhou 511434,China)

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640 [2]广州汽车集团股份有限公司汽车工程研究院,广东广州511434

出　　处：《湖南大学学报（自然科学版）》2018年第8期15-21,共7页Journal of Hunan University:Natural Sciences

基　　金：国家高技术研究发展计划(863计划)资助项目(2011AA11A218);广东省重大科技专项(00191350136655018)~~

摘　　要：提出一种仅用一个摩擦离合器实现无动力中断换挡的新型自动变速器——超越离合器辅助换挡自动变速器.该变速器采用摩擦离合器与超越离合器交替传递动力的方式实现连续换挡.为研究该自动变速器的换挡平顺性问题,搭建了两个挡位的6自由度变速器动力学模型,提出了换挡过程中离合器和动力源的协调控制策略,开展了仿真和台架试验研究.结果表明:所提升挡和降挡控制策略能有效降低换挡冲击,使得换挡时的冲击度保持在10m·s^(-3)以内.A novel type of automatic transmission named Overrunning Clutch Shift-assistant Transmission（OCT）was designed in the paper,which realized the shifts by the alternative work of friction clutch and Overrunning Clutch.Dynamic model of a 2-speed OCT was built to discuss the driveline vibration during shifts.Control strategy of the friction clutch and power source was presented in this paper,which was also verified by both simulation and test results.The results also show that the control strategy can make both upshift and downshift smooth,and jerk of the shifts is below 10 m·s^-3.

关 键 词：离合器 辅助换挡 无动力中断 自动变速器 换挡特性 

分 类 号：U463.212[机械工程—车辆工程]