摘要：The EMU has many characteristics, such as fast, safe, environmental protection and so on, which make it become the main means of transportation. Automatic side door is the channel for passengers pass in and out cars, is the most frequently used parts of passengers, the reliability and ease of its functions is closely related to with the passengers. In this study, aiming at the EMU automatic side door environment of the actual use and application characteristic, we propose a side door automatic optimization control method based on gravitational search algorithm for the optimal control of automatic side door. Firstly, this study analyzes the operating characteristics of the automatic side door and provides the basis for system control. Then, it establishes a mathematical model of the system control according to the rotating speed characteristic and torque characteristics of system drive device motor and then, the motor was controlled by optimizing PID control algorithm and PID parameters were optimized and solved by gravitational search algorithm. Finally, the proposed controlling method was verified by experiments, experimental results were shown that the method was feasible and could meet the precise control requirements of the automatic door of EMU.
