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Charging system and charging method

A charging system and charging method technology, applied in charging stations, electric vehicle charging technology, battery/fuel cell control devices, etc., can solve the problems of battery pack overcharging, explosion, fire, etc., and achieve the effect of avoiding battery pack overcharging

Inactive Publication Date: 2017-05-31
OPTIMUM BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the BMS fails and cannot cut off the battery pack relay or cannot send a charging stop command to the charging pile, the charging pile will continue to charge the battery pack, which will cause the battery pack to be overcharged, and even cause fire and explosion

Method used

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  • Charging system and charging method

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Embodiment Construction

[0025] In order to make the objectives, technical solutions and beneficial technical effects of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described implementation The form is only a part of embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0026] figure 1 It is a functional block diagram of the charging system 99 provided in the embodiment of the present invention. The charging system 100 includes an electric vehicle 100 and a charging pile 200 for charging the electric vehicle 100 . Wherein, the electric vehicle 100 includes a ba...

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Abstract

The invention provides a charging method used in a charging system. The charging system comprises an electromobile and a charging pile for charging the electromobile. The charging method includes following steps: inserting a charging gun into a charging base; detecting state information of the charging pile, and sending the state information of the charging pile to a BMS (battery management system); judging whether the charging pile has fault or not, and if yes, controlling a relay to be off to stop a battery pack from receiving charging current output by a charger; if not, collecting state information of the battery pack before charging; sending request current to a main control board according to the state information of the battery pack before charging; processing the request current, and then sending the processed request current to the charger; outputting charging current corresponding to the request current to charge the battery pack; collecting charging instant state information of the battery pack; sending the charging instant state information to the main control board; judging whether the BMS has fault or not, and if yes, controlling the charger to stop charging the battery pack.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of electric vehicle charging, in particular to a charging system and a charging method. [0003] 【Background technique】 [0004] At present, the charging mode of electric vehicles is dominated by BMS (Battery Management System, battery management system), and the charging pile cooperates with the control commands of BMS to perform corresponding actions. status information. Specifically, the state information of the BMS includes the total voltage of the battery pack, the temperature and voltage of the single battery, and the requested charging current. During the charging process, the charging pile adjusts the output current according to the requested current. After receiving the stop charging request command sent by the BMS, the charging pile stops outputting current and ends the charging process. However, if the BMS fails and cannot cut off the battery pack relay or cannot send a charging stop co...

Claims

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Application Information

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IPC IPC(8): B60L11/18
CPCB60L53/14B60L53/31B60L53/60B60L58/12B60L2240/545B60L2240/547B60L2240/549Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 黄文海武宽
Owner OPTIMUM BATTERY CO LTD
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