摘要
分析湿式双离合器式自动变速器(DCT)的结构和换档特点,建立换档过程动力学模型。综合各种换档类型的优点,制定组合型的两参数换档规律。分析离合器传递转矩变化率及传动系统阻尼对换档品质的影响,结合换档过程动力学模型,制定了换档时离合器控制策略。通过对换档时发动机输出转矩和离合器传递转矩变化率控制,提高了换档品质。根据DCT换档特点,制定换档各阶段双离合器间转矩分配策略。基于Matlab/Simulink软件平台,建立DCT传动系统仿真模型,对车辆动态换档过程进行仿真。
The structure and shift characteristic of wet dual clutch transmission （DCT） is analyzed. Then dynamic model of shift process is built. Two parameters shift schedule about combined style are established by comprehensive all the advantages of the shift characteristic. Shift quality influenced by the rate of torque of the clutch and the transmission system damping are analyzed. The clutch torque control strategy is developed consulting the dynamic model of shift process, with the shift quality improved by control of the engine output torque and the torque on clutch . The torque distribution between dual clutch in shift process is evaluated. Dynamic simulation model of dual clutch transmission is built based on Matlab/Simulink software,with its dynamic shift process simulated.
出处
《世界科技研究与发展》
CSCD
2013年第1期8-12,共5页
World Sci-Tech R&D
基金
国家863项目"轿车双离合器自动变速器(DCT)开发"(2006AA110111)资助
