6速湿式DCT动力学建模与换挡控制仿真  

Dynamics modeling and gear-shift control simulation of a 6-speed wet dual clutch transmission

作　　者：滕艳琼[1] 阴晓峰[1] 张德旺 卢汉[1] 

机构地区：[1]西华大学汽车工程研究所,四川成都610039 [2]吉孚动力技术(中国)有限公司,江苏苏州215024

出　　处：《机械设计》2013年第8期49-53,共5页Journal of Machine Design

基　　金：国家自然科学基金资助项目(60970072;51375402);四川省自然科学重点资助项目(10ZA100);四川省汽车工程重点实验室资助项目(SGXZD9902-10-1)

摘　　要：针对6速湿式双离合器自动变速器(Dual Clutch Transmission,DCT)产品开发,建立了包括发动机转矩模型、DCT动力学模型和整车纵向动力学模型在内的湿式DCT系统动力学模型,综合考虑换挡时间、冲击度和滑摩功,提出了DCT升挡过程控制策略。利用Matlab/Simulink及Stateflow建立了DCT换挡控制仿真模型,通过50%节气门开度下1挡升2挡过程的仿真实验,对所建模型及提出的换挡控制策略进行了验证。仿真结果表明所建立的湿式DCT系统动力学模型正确,换挡控制策略合理可行。In order to develop a 6-speed wet dual clutch transmission（DCT）,the dynamics model of the wet DCT system including the torque model of engine,the dynamics model of DCT,and the longitudinal dynamics model of vehicle was established.By taking into consideration of the shift time,the shift jerk,and the friction work together,an up-shift control strategy for the torque and the engine speed of the wet DCT was put forward.The simulation model of gear-shift process of the wet DCT was built by using the Matlab / Simulink and Stateflow platform.Taking the up-shift from the gear position 1 to the gear position 2 under 50% throttle opening as an example,the dynamics model and the shift control strategy were validated.The simulation results show that dynamics model of the wet DCT system is correct and the shift control strategy is reasonable and practicable.

关 键 词：双离合器自动变速器 动力学模型 控制策略 换挡规律 系统仿真 

分 类 号：U463.2[机械工程—车辆工程]