干式离合器接合同步冲击的分析

为提高干式离合器的起步接合品质,建立了2自由度干式离合器传动系统动力学模型,对起步接合时干式离合器的同步冲击进行了分析。理论分析及实验验证结果表明,干式离合器同步冲击的大小取决于同步前摩擦扭矩与发动机扭矩、负载扭矩的关系。与发动机扭矩和负载扭矩相比,当同步前的摩擦扭矩过大时,会导致同步冲击增大。在离合器接合同步前,根据发动机扭矩和负载扭矩的大小适当减小摩擦扭矩可以有效降低干式离合器接合时的同步冲击。

Analysis of Synchronization Lurch for Dry Clutch Engagement

In order to improve the dry clutch engagement quality during its launching process,a 2-DOF dynamics model of the dry clutch driveline was built,and the synchronization lurch of dry clutch engagement during launching process was analyzed.Theoretical and experimental results show that the amplitude of dry clutch synchronization lurch depends on the relationship of the friction torque,engine torque and load torque before synchronization instant.Compared with the engine torque and the load torque,the amplitude of dry clutch synchronization lurch would increase when the friction torque before synchronization instant is too large.The amplitude of synchronization lurch can be reduced effectively by properly decreasing the friction torque according to the engine torque and the load torque before synchronization instant.