The invention relates to a method and device for estimating the remaining capacity of a vehicle, and the method comprises the steps: detecting whether the vehicle meets a preset capacity correction condition or not; when a preset capacity correction condition is met, calculating the charging capacity and the discharging capacity of the battery pack; calculating the capacity difference, matching an optimal correction strategy according to the capacity difference, obtaining the actual capacity of the battery pack based on the optimal correction strategy according to the capacity obtained by the charging capacity and the discharging capacity and the current capacity of the battery pack, and estimating the actual residual electric quantity of the vehicle based on the actual capacity. According to the embodiment of the invention, the actual capacity of the battery pack can be obtained based on the optimal correction strategy according to the capacity obtained according to the charging capacity and the discharging capacity and the current capacity of the battery pack, and the actual residual electric quantity of the vehicle is estimated according to the actual capacity, so that the SOC and SOH accuracy is improved, the comfort of a customer in the vehicle using process is ensured, and the user experience is improved. Customer perception is improved, customer time management effectiveness is increased, and estimation errors are reduced.

    本申请涉及一种车辆的剩余电量估算方法及装置,其中,方法包括:检测车辆是否满足预设容量修正条件;在满足预设容量修正条件时,计算电池组的充电容量和放电容量;计算容量差,并根据容量差匹配最佳修正策略,且基于最佳修正策略根据由充电容量和放电容量得到的容量和电池组的当前容量得到电池组的实际容量,并基于实际容量估算车辆的实际剩余电量。本申请实施例可以基于最佳修正策略,根据充电容量和放电容量得到的容量和电池组的当前容量,以得到电池组的实际容量,并根据实际容量估算车辆的实际剩余电量,从而提高SOC和SOH准确性,保证客户在使用车辆过程中的舒适度,提高客户感知力,增加客户时间管理有效性,减小估算的误差。


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    Title :

    Method and device for estimating residual electric quantity of vehicle


    Additional title:

    车辆的剩余电量估算方法及装置


    Contributors:
    ZUO WENLING (author) / GONG PAN (author) / YU CHENG (author) / LI ZONGHUA (author) / TAN QINFANG (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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