This article has carried out related research on the construction model of the side door mechanism of the EMU.First of all,the movement rules of the side door were studied,and the relationship between the output torque and the side door drive power of the side door motor was established;then the control model of the DC brushless motor was studied,and the mathematical model controlled by the DC brushless motor was obtained.Door tests verify the model.Studies have shown that the movement characteristics of the door can be achieved through the mechanism modeling of the front-end design stage to provide a reference for the front-end design of the vehicle door.
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