Charging gun turn-off method and system for AC charging pile

Abstract

The invention provides a charging gun turn-off method and system for an AC charging pile in the technical field of AC charging piles, and the method comprises the steps: S1, enabling the AC charging pile to obtain a charging gun turn-off request inputted by a user, and carrying out the verification of the charging gun turn-off request; s2, the AC charging pile sends a current adjustment instruction to the new energy vehicle through a CP signal based on the charging gun turn-off request; s3, the new energy vehicle adjusts the current of a load connected with the charging gun based on the current adjustment instruction, and feeds back a current adjustment result to the AC charging pile; s4, the AC charging pile disconnects a relay connected with the charging gun based on the current adjustment result; s5, the AC charging pile verifies the turn-off state of the charging gun; and S6, the AC charging pile records a turn-off log of the charging gun in real time, the turn-off log is encrypted into an encrypted log, and the encrypted log is stored and backed up. The method has the advantage that the turn-off safety of the charging gun of the AC charging pile is greatly improved.

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