The invention relates to a pure electric commercial vehicle power supply management method and system based on a lithium battery and a medium, and the method comprises the steps: M1, electrifying a whole vehicle, and obtaining current demand data information of vehicle electric equipment and vehicle DCDC end request voltage data information; m2, based on the current demand data information of the electric equipment of the vehicle and the request voltage data information of the DCDC end of the vehicle, the demand power of the DCDC end of the vehicle is output according to the formula that output power = output current * output voltage; and M3, if the required power of the DCDC end of the vehicle is smaller than or equal to the rated output power of the DCDC end of the vehicle, the first actual output power of the DCDC end of the vehicle is equal to the required power of the DCDC end of the vehicle. According to the invention, the low-voltage lithium battery is prevented from being overcharged or overdischarged, so that the service life of the lithium battery is prolonged, and no redundant energy waste is caused while DCDC output meets the requirements of the whole vehicle.

    本发明涉及一种基于锂电池的纯电动商用车电源管理方法、系统及介质,所述方法包括M1.整车上电,获取车辆用电设备的电流需求数据信息和车辆DCDC端请求电压数据信息;M2.基于所述车辆用电设备的电流需求数据信息和车辆DCDC端请求电压数据信息,根据输出功率=输出电流×输出电压,输出车辆DCDC端需求功率;M3.若所述车辆DCDC端需求功率小于或等于车辆DCDC端的额定输出功率,则车辆DCDC端的第一实际输出功率等于所述车辆DCDC端需求功率。本发明不仅防止低压锂电池处于过充或者过放,从而延长锂电池的使用寿命,而且能够保证DCDC输出满足整车需求的同时,无多余的能源浪费。


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    Title :

    Pure electric commercial vehicle power supply management method and system based on lithium battery, and medium


    Additional title:

    一种基于锂电池的纯电动商用车电源管理方法、系统及介质


    Contributors:
    ZHU HAINAN (author) / HUANG ZHAOQIN (author) / WU MINGLIANG (author) / XIONG BAOPING (author) / SUN YING (author) / LI BO (author) / SHEN JIANZHONG (author) / DOU MINGJIA (author) / SHA KUN (author) / WEI JUN (author)

    Publication date :

    2023-07-21


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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