The invention discloses a charging control method and system for a vehicle-mounted battery and a vehicle, and is characterized in that a current determined by a vehicle control unit based on a current environment temperature is an allowable charging current of the vehicle-mounted battery, so that a charging request voltage of the vehicle-mounted battery is adjusted according to an output current of a DC-DC converter in a working state and the allowable charging current. The charging current can be effectively prevented from exceeding the current limit value of the vehicle-mounted battery under the condition of considering the charging limitation of the current environment temperature on the vehicle-mounted battery, so that the overcurrent of the vehicle-mounted battery is avoided, and the influence on the service life of the vehicle-mounted battery is reduced.

    本申请公开了一种车载电池的充电控制方法及系统、车辆,由于整车控制器基于当前环境温度确定的电流为车载电池的允许充电电流,那么根据DC‑DC变换器在工作状态下的输出电流和允许充电电流对车载电池的充电请求电压进行调节。能够在考虑当前环境温度对车载电池的充电限制的情况下,有效避免充电电流超过车载电池的电流限值,进而避免车载电池过流,降低对车载电池寿命的影响。


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    Title :

    Charging control method and system of vehicle-mounted battery and vehicle


    Additional title:

    车载电池的充电控制方法及系统、车辆


    Contributors:

    Publication date :

    2025-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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