Abstract
The shield based on charging pile port can ensure safe use of charging pile, and it is an important device. For achieving to recognize and process the stuck state of the shield between the shield open and closed, This paper puts forward a method to detect the stuck state, which based on velocity feedback, and designs detection circuit including the limit position and the speed, and determination procedures of the shield’s state of motion. the limit position is detected by photoelectric sensor, and the speed is detected by magnetic sensor. Test result shows that the system can feedback the limit position and the stuck state of the shield instantaneously, and achieve automatic control between the shield open and closed with control correctly and safely.
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