The invention discloses a double-battery-pack parallel charging and discharging control method, and relates to the field of batteries, and the double-battery-pack parallel charging and discharging control method comprises a charging control method and a discharging control method. The discharging control method comprises the following steps: step 1, after the VCU is awakened and before a hard wire signal is output to control the battery pack to be awakened, a corresponding CAN instruction is sent to the two BMSs, compared with the prior art, the method has the beneficial effects that the VCU, the battery pack and the BMSs are adopted to carry out CAN communication interaction, and by comparing the voltage and temperature of the two battery packs, the battery pack can be controlled to be awakened; the charging and discharging time sequence of the two battery packs is controlled; under the condition that configurations such as a unilateral diode, a relay and a controller are not added, double-pack parallel charging and discharging use is realized, and the use cost of the system and the after-sales maintenance cost of components are reduced; and meanwhile, the control strategy is compatible with single-packet use and double-packet use, so that the management and control maintenance pressure of the software version and the probability of misuse of the software version are reduced.

    本发明公开了一种双电池包并联充放电控制方法,涉及电池领域,所述双电池包并联充放电控制方法包括充电控制方法和放电控制方法;放电控制方法包括以下步骤:步骤1,VCU被唤醒后,在输出硬线信号控制电池包唤醒前,发送相应的CAN指令给两路BMS,与现有技术相比,本发明的有益效果是:本发明采用VCU、电池包、BMS进行CAN通信交互,通过比较两个电池包的电压和温度,控制两个电池包的充放电时序;在不增加单向二极管、继电器、控制器等配置的情况下,实现双包并联充放电使用,降低了系统使用成本以及元器件售后维护成本;同时控制策略兼容单包使用和双包使用,减少软件版本的管控维护压力和软件版本错用的概率。


    Access

    Download


    Export, share and cite



    Title :

    Double-battery-pack parallel charging and discharging control method


    Additional title:

    一种双电池包并联充放电控制方法


    Contributors:
    ZHOU BOYIN (author) / LIU HUA (author) / ZHONG YU (author) / ZHAO SHUIPING (author) / RAI SHUN (author) / SHI MI (author)

    Publication date :

    2025-02-11


    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



    Battery pack charging control method and discharging control method

    YAO ZHENFEI / WU SHENGXIAN / XU WENHAO | European Patent Office | 2021

    Free access

    Forklift lithium battery pack parallel topological structure and charging and discharging control method

    WANG ZHIHAI / HONG LEI / XIAO LIANG et al. | European Patent Office | 2021

    Free access

    METHOD AND SYSTEM FOR CONTROLLING PARALLEL CHARGING AND DISCHARGING OF BATTERY PACK

    DENG YUE / DONG FEI / LV TINGTING et al. | European Patent Office | 2021

    Free access

    Battery charging and discharging circuit and control method of battery pack

    GONG WEIGANG / NING RONGBIN | European Patent Office | 2021

    Free access