The invention provides a power system control method and system of a dual-motor hybrid vehicle, and relates to the technical field of vehicle control. The power system control method of the dual-motor hybrid vehicle comprises the steps that a fault signal of a power battery of the vehicle is obtained; determining whether the fault of the power battery is a voltage control fault according to the fault signal; when it is determined that the fault of the power battery is the voltage control fault, the voltage of the first motor is controlled, so that power generation of the first motor and power utilization of the load are kept consistent, and the current of the bus end of the power battery is kept to be zero. When the power battery in the power system has a voltage fault, the voltage of the first motor of the vehicle fluctuates within a certain range under the condition of ensuring normal operation of the vehicle, the problem that the power system has a serious fault due to the fact that the voltage exceeds a threshold value is avoided, and the safety of the vehicle is improved.
本发明提供了一种双电机混合动力车辆的动力系统控制方法及控制系统,涉及车辆控制技术领域。本发明的双电机混合动力车辆的动力系统控制方法包括获取车辆的动力电池的故障信号;根据故障信号确定动力电池的故障是否是电压控制故障;在确定动力电池的故障为电压控制故障时,对第一电机的电压进行控制,以使得第一电机的发电和负载用电保持一致,且保持动力电池母线端电流为零。本发明的动力系统中的动力电池出现电压故障时,在保证车辆正常运行的情况下使车辆第一电机的电压在一定的范围内波动,避免超过阈值导致动力系统出现严重故障的问题,提高车辆的安全性。
Power system control method and control system of dual-motor hybrid vehicle
双电机混合动力车辆的动力系统控制方法及控制系统
14.05.2024
Patent
Elektronische Ressource
Chinesisch
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 |
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