基于传动系一体化控制的DCT换挡规律研究  

A Study on the Shift Schedule of DCT Based on Integrated Powertrain Control

作　　者：韩鹏[1] 程秀生[1] 李兴忠[1] 李雪松[1] 王印束[2] 

机构地区：[1]吉林大学,汽车仿真与控制国家重点实验室,长春130025 [2]郑州宇通客车股份有限公司,郑州450016

出　　处：《汽车工程》2015年第5期538-543,共6页Automotive Engineering

基　　金：高等学校博士学科点专项科研基金(20120061110027);中国博士后科学基金(801110270415)资助

摘　　要：介绍了双离合器自动变速器(DCT)传动系一体化控制系统的工作原理,搭建了基于传动系一体化的DCT动力学模型;以传统的DCT换挡规律为基础,采用动态规划理论制定了基于传动系一体化控制的DCT最佳换挡规律。采用EUDC循环工况,分别对传统换挡规律和基于传动系一体化最佳换档规律进行仿真和实车试验。结果表明,采用传动系一体化控制的DCT最佳换挡规律后,在不影响动力性的前提下,能够有效降低换挡频率,改善燃油经济性。The working principle of integrated powertrain control （DCT） is presented and a dynamics model for DCT based on integrated basis of traditional shift schedule for DCT, the optimal shift schedule system with a double clutch transmission powertrain control is established. On the based on integrated powertrain control is worked out with dynamic programming. Simulations and real vehicle tests are conducted on traditional shift schedule and shift schedule based on integrated powertrain control respectively with EUDC cycle. The results show that the optimal shift schedule for DCT based on integrated prove fuel economy with vehicle power performance powertrain control can effectively reduce shift frequency and im- unaffected.

关 键 词：双离合器自动变速器 传动系一体化控制 动态规划 换挡规律 

分 类 号：U463.2[机械工程—车辆工程]