自动液力变速器闭锁离合器滑摩的模糊PID控制

Automatic Hydraulic Transmission Locking Clutch Slipping of the Fuzzy PID Control

在闭锁离合器滑摩控制中,为了取得更好的自适应性,结合模糊控制和常规PID控制二者的优点,提出了模糊PID控制方法。首先通过建立模糊规则、进行模糊推理、确定PID的3个参数,再由PID控制器对闭锁离合器进行滑摩控制。计算机仿真结果表明:模糊PID控制器与常规的PID控制器相比提高了系统的响应速度,具有良好的稳定性,能使汽车更平稳快速地起步,换挡更平顺。

In order to achieve better self adaptability, combing advantage of fuzzy control and advantage of conventional PID con-trol, fuzzy PID control method was proposed in lockup clutch slipping control. First of all, through the establishment of fuzzy rules and fuzzy reasoning, three parameters of PID was determined, slipping control of the lockup clutch was implemented by PID controller. The computer simulation results show that compared with the conventional PID controller, the fuzzy PID controller improves the response speed of the system, and it has a good stability. The conventional PID controller can make the car more smooth and faster start and change gear more smoothly.