The present application relates to a method for diagnosing a charging interruption of an electric vehicle (2), comprising: determining a minimum insulation resistance (S1) of a high-voltage circuit of the entire electric vehicle during the entire charging cycle on the basis of real-time monitoring data of the charging process of the electric vehicle; if the minimum insulation resistance is less than a predetermined insulation resistance threshold or the minimum insulation resistance is an invalid value, determining a total duration from a charging start time to a charging end time of the charging cycle based on the real-time monitoring data (S2); determining a change value of the state of charge of the battery during the entire charging cycle on the basis of the real-time monitoring data if the total duration of the charging cycle is less than or equal to a predetermined time threshold (S3); if the change value of the state of charge of the battery is less than or equal to a predetermined state-of-charge difference threshold value, determining a charging interruption occurring during the charging cycle on the basis of an error signal in the real-time monitoring data (S4).
本申请涉及一种用于诊断电动车辆(2)的充电中断的方法,其包括:基于电动车辆充电过程的实时监控数据确定电动车辆的整车高压回路在整个充电周期期间的最小绝缘电阻(S1);在所述最小绝缘电阻小于预给定的绝缘电阻阈值或者所述最小绝缘电阻是无效值的情况下,基于所述实时监控数据确定所述充电周期的充电开始时刻至充电结束时刻的总时长(S2);在所述充电周期的总时长小于等于预给定的时间阈值的情况下,基于所述实时监控数据确定在整个充电周期期间电池荷电状态的变化值(S3);在所述电池荷电状态的变化值小于等于预给定的荷电状态差阈值的情况下,基于所述实时监控数据中的报错信号确定在所述充电周期期间发生的充电中断(S4)。
Method, cloud platform and system for diagnosing charging interruption of electric vehicle, vehicle and computer program product
用于诊断电动车辆的充电中断的方法、云端平台和系统,车辆以及计算机程序产品
29.11.2024
Patent
Elektronische Ressource
Chinesisch
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