The invention discloses a working abnormity diagnosis method of a vehicle driving system and a vehicle, the vehicle driving system comprises a BSG motor and an engine, and the working abnormity diagnosis method comprises the following steps: periodically detecting the rotating speed of the BSG motor and the rotating speed of the engine at a first preset time; judging whether the vehicle driving system meets a first preset condition or not according to the rotating speed of the BSG motor and the rotating speed of the engine; according to whether the vehicle driving system meets the first preset condition or not, controlling the rotating speed of the BSG motor to be decreased, and enabling the engine to compensate torque for the BSG motor; and judging whether the vehicle driving system meets a second preset condition or not, and judging whether the BSG motor breaks down or not according to whether the vehicle driving system meets the second preset condition or not. Therefore, the rotating speed of the engine and the rotating speed of the BSG motor can be periodically detected, whether the BSG motor breaks down or not can be detected, potential safety hazards of driving caused by faults of the BSG motor can be avoided, and then the driving safety of the vehicle can be improved.
本发明公开了一种车辆驱动系统的工作异常诊断方法以及车辆,车辆驱动系统包括BSG电机和发动机,工作异常诊断方法包括以下步骤:以第一预定时间周期性检测BSG电机的转速和发动机的转速;根据BSG电机的转速和发动机的转速判断车辆驱动系统是否满足第一预定条件;根据车辆驱动系统是否满足第一预定条件,控制BSG电机的转速下降且发动机向BSG电机补偿扭矩;判断车辆驱动系统是否满足第二预定条件,根据车辆驱动系统是否满足第二预定条件判断出BSG电机是否出现故障。由此,可以周期性检测发动机和BSG电机转速,也可以检测出BSG电机是否发生故障,从而可以避免因BSG电机故障造成行车安全隐患,进而可以提升车辆的行驶安全性。
Working abnormity diagnosis method of vehicle driving system and vehicle
车辆驱动系统的工作异常诊断方法以及车辆
2022-02-25
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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