发动机转速调节对DCT滑摩过程的影响研究  

Study on Engine Speed Control in DCT Slipping Progress

作　　者：高耸[1] 袁跃兰[2] 陈漫[1] 朱礼安 曲思宇 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]贵州交通职业技术学院,贵阳550008 [3]江麓机电集团有限公司,湖南湘潭411100

出　　处：《汽车工程学报》2016年第6期397-403,共7页Chinese Journal of Automotive Engineering

基　　金：国家自然科学基金(51175042);基础产品创新项目(VTDP-3203)

摘　　要：为改善双离合器式自动变速器(Dual Clutch Transmission,DCT)的换挡品质,提出发动机和离合器联合控制策略。建立动力传动系统模型,利用Simulink对滑摩品质的影响因素进行仿真分析与试验研究。结果表明,离合器钢片温度仿真值与试验结果变化趋势一致,钢片温度和应力随转速差减小而减小;通过发动机转速调节,换挡冲击和滑摩功减少,控制策略优化了换挡滑摩品质。In order to improve the shift quality of the dual clutch transmission （DCT）, an engine clutch joint control strategy was proposed. A dynamic model of a powertrain system was built and simulated, and the experimental analysis of thctors influencing the slipping quality was carried out. The simulation results show a good agreement with the measured data. Both temperature and stress decline with the decrease of speed difference. Shifting shock and the work done by friction are reduced significantly through the engine speed control. Furthermore, the proposed control strategy can optimize the slipping quality.

关 键 词：双离合器式自动变速器 滑摩品质 联合控制策略 热负荷 

分 类 号：U463.212[机械工程—车辆工程]