The invention provides a method, a device, equipment and a medium for calibrating battery capacity under an exhibition vehicle working condition, after relevant parameters are acquired, if a current parameter is within a current exhibition vehicle working condition judgment threshold range and a difference value between a current display SOC and a current real SOC is greater than a preset SOC calibration threshold, the battery capacity is calibrated; matching a target calibration strategy according to a size relationship between the current display SOC and the current real SOC, executing a calibration step according to the current current parameter and a preset calibration parameter to obtain a calibrated real SOC and a calibrated display SOC, and repeating the calibration step until a difference value between the calibrated real SOC and the calibrated display SOC is smaller than a preset SOC calibration threshold value; according to the method, SOC estimation is carried out on the basis of the current under the vehicle display working condition, SOC estimation in an aligned static state is achieved, the accuracy limitation of estimation under a single working condition is avoided, on the other hand, the real SOC under different battery states of the vehicle is matched with the calibration strategy of the displayed SOC value, and the accuracy of the SOC estimation is improved. The implementation state range of the calibration process is improved while the bad driving experience in the SOC jump process is avoided.

    本发明提供了一种展车工况的电池电量校准方法、装置、设备及介质,在获取相关参数后,若当前电流参数处于当前展车工况判定阈值范围内,且当前显示SOC和当前真实SOC的差值大于预设SOC校准阈值,根据当前显示SOC和当前真实SOC的大小关系匹配目标校准策略,并根据当前电流参数和预设校准参数执行校准步骤,得到校准真实SOC和校准显示SOC,并重复校准步骤直至校准真实SOC和校准显示SOC的差值小于预设SOC校准阈值;本方法基于电流在展车工况下进行SOC估算,实现了对准静态下的SOC估算,避免单一工况下估算的精准度局限性,另一方面对车辆的不同电池状态下的真实SOC和显示SOC数值的校准策略匹配,避免SOC跳转过程的不良驾驶体验的同时提升校准过程的可实施状态范围。


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    Title :

    Battery electric quantity calibration method, device and equipment under display vehicle working condition and medium


    Additional title:

    一种展车工况的电池电量校准方法、装置、设备及介质


    Contributors:
    LEE SANG-GEOL (author) / DENG TINGFENG (author) / CHEN PO (author) / YU CHENG (author) / YANG XU (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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