The invention relates to a dual-motor fault diagnosis method for an electric vehicle. The method comprises the following steps: S1, detecting the current of each motor of the dual motors of the electric vehicle; s2, the driving distance and the driving speed of the electric vehicle are detected; s3, under the condition that the judgment standard is met, it is judged that the double motors are in single-motor operation, and the judgment standard comprises a first criterion that the maximum current of one of the double motors is larger than the operation current, and the maximum current of the other of the double motors is smaller than the idle current. The invention also relates to a fault diagnosis system for dual-motor fault diagnosis of an electric vehicle, to a computer program product, such as a computer readable program carrier, and to an electric vehicle. Through some embodiments of the invention, the operation and fault of the single motor in the double motors of the electric vehicle can be identified in a reliable manner, and the driving safety of the electric vehicle is improved.
本发明涉及一种用于电动车的双电机故障诊断的方法,所述方法包括以下步骤:S1:检测电动车的双电机的各个电机的电流;S2:检测电动车的行驶距离和行驶速度;S3:在满足评判标准的情况下判定双电机处于单电机运行,其中,所述评判标准包括第一判据:双电机中的一个电机的最大电流大于运行电流,并且双电机中的另一电机的最大电流小于空转电流。本发明还涉及一种用于电动车的双电机故障诊断的故障诊断系统,一种计算机程序产品、例如计算机可读程序载体以及一种电动车。通过本发明的某些实施例能够实现,以可靠的方式识别电动车的双电机中的单电机运行和单电机故障,提高电动车的行驶安全性。
Dual-motor fault diagnosis method and fault diagnosis system for electric vehicle
用于电动车的双电机故障诊断的方法和故障诊断系统
2023-03-31
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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