The invention relates to the technical field of electric vehicles, in particular to an auxiliary drive bridge oil leakage fault diagnosis method and device and a medium. The method comprises the following steps: determining a sensitive rotating speed interval; constructing a diagnosis comparison table; enabling the auxiliary driving motor to reach a sensitive rotating speed interval in a rotating speed control mode; querying the diagnosis comparison table to obtain a test torque and a target motor rotating speed; the current motor rotating speed of the auxiliary drive motor is recorded in the torque control mode; and comparing the current motor speed with the target motor speed. In the diagnosis process, only the diagnosis comparison table needs to be solidified into the motor controller, the diagnosis comparison table can be directly called during diagnosis, the diagnosis can be completed without adding an additional sensor, and the cost of auxiliary drive bridge oil leakage diagnosis is remarkably reduced.
本发明涉及电动汽车技术领域,特别涉及一种辅驱电桥漏油故障诊断方法、装置及介质。所述方法包括:确定敏感转速区间;构建诊断对比表格;以转速控制模式使辅驱电机达到敏感转速区间;查询诊断对比表格获取测试扭矩以及目标电机转速;在转矩控制模式下记录辅驱电机的当前电机转速;对比当前电机转速和目标电机转速。本发明的诊断过程,只需要将诊断对比表格固化至电机控制器中,诊断时直接调用即可,也不需要增加额外的传感器即可完成诊断,显著降低辅驱电桥漏油诊断的成本。
Auxiliary drive bridge oil leakage fault diagnosis method and device and medium
一种辅驱电桥漏油故障诊断方法、装置及介质
08.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Leakage fault diagnosis method and device, equipment, storage medium and vehicle
Europäisches Patentamt | 2024
|Europäisches Patentamt | 2024
|Elevator drive host fault diagnosis method and device and readable storage medium
Europäisches Patentamt | 2021
|