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提出了一种带有干式离合器的现代机械式自动变速器(AMT)的换挡控制策略,这种控制是通过把离合器划分为5种不同工作状态设计出来的。这五种状态分别是:接合、滑磨分离、同步、接合空行程和滑磨接合。其控制方案包括在发动机转速、离合器的转速、分离轴承的位置及对传递的扭矩的估计基础上建立的解耦和级联反馈控制。在中型汽车实验数据基础上建立传动系统、干式离合器、驱动控制器模型并通过仿真来验证所设计的控制器性能。
A shift control strategy for a modern mechanical automatic transmission (AMT) with a dry clutch is proposed, which is designed by dividing the clutch into five different operating states. The five states are: engagement, slip separation, synchronization, engaging the air travel and slip wear engagement. The control scheme includes decoupling and cascade feedback control based on engine speed, clutch speed, position of the release bearings, and estimation of transmitted torque. Based on the experimental data of medium-sized automobile, the transmission system, dry clutch and drive controller model are established and the performance of the designed controller is verified through simulation.