The invention discloses a charging system for a low-voltage storage battery of an electric vehicle and a control method. The electric vehicle low-voltage storage battery charging system comprises a low-voltage storage battery, a vehicle-mounted charger, a DCDC converter, a power battery system, a whole vehicle controller, a vehicle-mounted terminal, a user side APP and an electric vehicle monitoring platform. The vehicle-mounted terminal is used for acquiring the electricity supplementing demand of the low-voltage storage battery, and the electricity supplementing demand comprises a first-stage electricity supplementing demand, a second-stage electricity supplementing demand and a third-stage electricity supplementing demand; and if the low-voltage storage battery meets the three-level electricity supplementing requirement, the vehicle control unit controls the power battery system to power on the DCDC converter, charges the low-voltage storage battery according to second preset time and sends an alarm to the electric vehicle monitoring platform and the user side APP. According to the invention, the electricity supplement demand of the low-voltage storage battery is divided into three levels and electricity supplement management is carried out by fully utilizing the Internet of Vehicles, and through vehicle monitoring data, the after-sales platform carries out preventive maintenance and provides professional maintenance service conveniently after sales.

    本发明公开了一种电动汽车低压蓄电池补电系统及控制方法。电动汽车低压蓄电池补电系统包括:低压蓄电池、车载充电机、DCDC直流转换器、动力电池系统、整车控制器、车载终端、用户端APP以及电动汽车监控平台;车载终端用于获取低压蓄电池的补电需求,补电需求包括:一级补电需求、二级补电需求以及三级补电需求;若低压蓄电池为三级补电需求,则整车控制器控制动力电池系统给DCDC直流转换器上电,按照第二预设时间给低压蓄电池充电,并发送警报到电动汽车监控平台和用户端APP。本发明充分利用车联网将低压蓄电池补电需求分为三级并进行补电管理,通过车辆监控数据,由售后平台进行预防性维护同时方便售后提供专业维保服务。


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    Title :

    Electric vehicle low-voltage storage battery charging system and control method


    Additional title:

    一种电动汽车低压蓄电池补电系统及控制方法


    Contributors:
    WANG SHIQIANG (author) / LIANG XIN (author) / ZHAO YURU (author) / CHEN MIN (author) / TANG HAO (author)

    Publication date :

    2025-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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