湿式双离合器自动变速器换挡控制与仿真分析

建立了湿式双离合器自动变速器(dual clutch transmission,DCT)换挡过程系统动力学模型,针对湿式双离合器系统的高度非线性、难以建立精确数学模型等特点,设计了多规则因子模糊控制器。制定了湿式双离合器换挡过程控制策略,该控制策略通过综合控制发动机和离合器压力来完成换挡过程中的动力切换。基于Matlab/Simulink软件平台,建立了湿式DCT传动系统的仿真模型,对换挡过程进行了仿真。结果表明,该控制策略能够满足DCT换挡过程的要求,并且控制器的跟踪性能良好。最后,讨论了换挡控制的影响因素。

Shifting control and simulation of wet dual clutch transmission

The dynamic model of the shift process of wet dual clutch transmission(DCT) is set up.Aiming at the characteristics of wet dual clutch transmission,such as being highly nonlinear and difficult to establish its math model,etc.,a multiple rule weighting factor fuzzy controller is designed.Then the control scheme of shift process is built,which completes the transfer of engine torque through a combination of a manipulation of engine control and clutch pressure.Dynamic simulation model of wet DCT power train is...