电控机械式自动变速器换挡过程中离合器的接合控制

为有效减少换挡过程中离合器的接合冲击，需要在机械式自动变速器的离合器接合模型基础上，运用合适的控制方法来寻求离合器接合的控制规律。首先采用反馈方法求解模型的控制矢量，得到闭环的离合器接合过程模型；接着对电控机械式自动变速器换挡过程中离合器的接合过程进行模拟，得出离合器接合过程中发动机和变速器输入轴的转速和转矩变化过程，并计算出相应的离合器弹簧分离指小端位移和车辆冲击度；通过用模拟结果和实车测试结果对比，验证了模型和控制方法的准确性，为进一步提高机械式自动变速器的性能奠定了基础。

CLUTCH ENGAGEMENT CONTROL DURING GEAR SHIFTING PROCESS IN AUTOMATED MANUAL TRANSMISSION

To effectively reduce the shock during gear shifting process of automated manual transmission (AMI), the clutch model is necessary to be set up and appropriate control method needs to be found. First with feedback control theory, the state space matrix is solved and the control vector is picked out. Next the clutch spring finger's displacement and the shock during clutch engagement are calculated. Meanwhile, the engine speed and torque are also showed. Finally comparison between the simulation and the measurement of clutch engagement process reveals that the feedback control can be used to find the suitable engine torque and speed trajectories to better control the San-tana2000 equipped with AMI.