Method and device for controlling electronic lock of charging port of electric automobile

Abstract

The invention relates to a method and device for controlling an electronic lock of a charging port of an electric automobile. The method for controlling the electronic lock of the charging port of theelectric automobile comprises the following steps that an unlocking signal is acquired; whether a current charging current is greater than or equal to a first preset charging current or not is judged; if the current charging current is greater than or equal to the first preset charging current, the current charging current is reduced to a second preset charging current, and then the electronic lock of the charging port is controlled to unlock, wherein the second preset charging current is less than the first preset charging current; and if the current charging current is less than the first preset charging current, the electronic lock of the charging port is controlled to unlock. According to the method and device for controlling the electronic lock of the charging port of the electric automobile, the electric vehicle is charged by adopting a charging current higher than the first preset charging current; when a charging plug needs to be pulled out, the charging current is firstly reduced less than the first preset charging current, and then the electronic lock of the charging port is controlled to unlock, so that the power-off operation is carried out without arranging an external button, the safety and reliability of the charging process are ensured, the user operation and charging time are reduced, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging control, in particular to a control method and device for an electric vehicle charging port electronic lock. Background technique [0002] In the current environment that advocates low-carbon life, green and environmental protection, electric vehicles are developing rapidly. In order to ensure the normal operation of electric vehicles, it is necessary to charge electric vehicles quickly and effectively, and the safety problems of high-voltage charging that follow are becoming more and more obvious. The current national regulations stipulate that when the electric vehicle is charged by AC, if the charging current is greater than 16A, the power must be cut off before the electronic lock of the charging port can be unlocked, and then the charging plug can be released, so as to prevent live plugging and unplugging when the charging current is greater than 16A. [0003] In order to fa...

AI Technical Summary

Problems solved by technology

[0003] In order to facilitate the release of the charging plug and ensure charging safety, most electric vehicles use an AC charging current of less than 16A. Although this facilitates the release of the charging plug, it also increases the charging time.

For electric vehicles with a charging current greater than 16A, it is necessary to set a button on the charging pile end or the electric vehicle end, and first turn off the power through the manual control button to unlock the electronic lock of the charging port, and then unplug the charging plug, which will increase the user's operating time. If the button is accidentally touched and the power is cut off during the charging process, the charging process will be interrupted, so that the user cannot fully charge within the expected time, and the user experience is poor.

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