Method for judging whether charging wire is successfully connected or not during battery replacement

Abstract

The invention provides a method for judging whether a charging wire is successfully connected or not during battery replacement. The method comprises the steps that a user inserts a charging connectorof a battery replacement cabinet into a charging interface of a battery; a battery replacement cabinet control system judges whether the battery has the identity information meeting the condition ornot; the battery replacement cabinet control system acquires the voltage of the battery; the battery replacement cabinet control system is provided with charging voltage and charging current; the battery replacement cabinet control system acquires the charging voltage of a charging module; the battery replacement cabinet control system judges whether the voltage difference value between the charging voltage and the battery is less than a preset threshold value or not; and when the voltage difference value between the charging voltage and the battery is less than the preset threshold value, thebattery replacement cabinet control system judges that the charging module is successfully connected with the charging wire connected with the battery. Whether the charging wire is successfully connected or not is judged by detecting whether the difference value between the charging voltage of the charging module and the voltage of the battery is less than the preset threshold value in the battery replacing cabinet control system or not, the time for detecting the process is greatly shortened due to the fact that the voltage rises instantaneously, and the battery replacement experience of a user is improved.

Description

technical field [0001] The invention relates to the technical field of battery replacement, in particular to a method and system for judging whether a charging line is successfully connected during battery replacement. Background technique [0002] The battery exchange cabinet is generally used for battery exchange of electric bicycles. During the battery exchange process, the user needs to plug in the charging cable to ensure that the charging and communication are normal, otherwise it cannot be guaranteed that the charging and communication cannot be completed normally. In the original battery replacement process, if the communication line cannot be successfully connected, it will fail to verify the identity information of the battery due to the inability to communicate successfully at this time, resulting in failure of the battery replacement. This is normal. However, in practice, the communication line is successfully connected, but the charging line is not successfully ...

AI Technical Summary

Problems solved by technology

[0002] The battery exchange cabinet is generally used for battery exchange of electric bicycles. During the battery exchange process, the user needs to plug in the charging cable to ensure that the charging and communication are normal, otherwise it cannot be guaranteed that the charging and communication cannot be completed normally.

In the original battery replacement process, if the communication line cannot be successfully connected, it will fail to verify the identity information of the battery due to the failure of communication at this time, resulting in the failure of the battery replacement. This is normal.

However, in practice, the communication line will be successfully connected, but the charging line will not be successfully connected, which leads to the situation that it is normal to verify the battery identity information during battery replacement, but the battery cannot be charged normally.

[0003] Generally, judging whether the charging line is successfully connected is judged according to the current, but it takes a long time to judge according to the magnitude of the current, because the charging process originally starts from the current 0, and it is a relatively slow rising process. At the beginning, if the current is 0 to judge whether the charging line is connected successfully, it is wrong. It needs to wait for a period of time to check whether the current is still lower than a small value before judging whether the charging line is connected successfully. This process It takes about 10s, which is a relatively poor experience for battery swapping users.

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