Dynamics and control of gearshifts on twin-clutch transmissions
Dynamics and control of gearshifts on twin-clutch transmissions
复制标题
DOI：
10.1243/095440705x34720
复制
发表时间：
2005-08
期刊：
影响因子：
--
通讯作者：
M. Goetz;M. Levesley;D. Crolla
中科院分区：
文献类型：
--
作者：
M. Goetz;M. Levesley;D. Crolla
摘要基于双离合器自动变速器动力传动系统的详细动力学模型，提出了一种动力传动系统换挡的集成控制方法。该控制器的操作演示的基础上的模拟结果的升档，降档，和多个换档发生在同一个一半的变速器。该控制算法利用离合器滑差的闭环控制来实现发动机扭矩的平稳传递，目的是再现单向离合器的操作。另外的元件是通过发动机控制和离合器压力的操纵的组合的发动机速度的闭环控制。此外，它表明，变速器输出扭矩的控制在换档过程中可以增加鲁棒性的控制，并提供了一种手段，直接操纵换档字符。最后，齿轮预选通过传统的液压驱动锥型同步器的整体换档质量的动态效果进行了讨论。
Abstract Based on a detailed dynamic model of an automotive powertrain containing a twin-clutch transmission, an integrated powertrain control for gearshifts is developed. The operation of this controller is demonstrated on the basis of simulation results for upshifts, downshifts, and multiple gearshifts taking place within the same half of the transmission. The control algorithm makes use of closed-loop control of clutch slip for a smooth transfer of engine torque with the aim of reproducing the operation of a one-way clutch. Further elements are a closed-loop control of engine speed through a combination of a manipulation of engine controls and clutch pressure. In addition, it is demonstrated that the control of transmission output torque during gearshifts can add robustness to the control and provides a means to manipulate directly the gearshift character. Finally, the dynamic effects of gear preselection through conventional hydraulically actuated cone-type synchronizers on the overall shift quality are discussed.