The invention discloses a hybrid vehicle engine flameout control method and system, a storage medium and a vehicle, and relates to the technical field of automobiles, the method comprises the steps that the vehicle state of the vehicle at the current moment is obtained, and whether the current moment meets the preset flameout condition or not is judged according to the vehicle state; if yes, the engine is controlled to conduct torque reduction treatment, and the ISG motor is controlled to maintain the engine rotating speed of the engine; the actual torque of the engine is obtained, and whether the actual torque of the engine is smaller than a preset torque threshold value or not is judged; if yes, the engine is controlled to stop, and the ISG motor is controlled to output reverse dragging flameout torque so as to reduce the rotating speed of the engine; the engine rotating speed of the engine is obtained, and whether the engine rotating speed is equal to a preset target rotating speed or not is judged; if yes, the engine completes flameout. The invention aims to reduce abnormal sound and jitter generated during flameout of the engine in the hybrid vehicle, improve flameout quality and improve NVH (Noise Vibration and Harshness) performance.
本发明公开了一种混动车辆发动机熄火控制方法、系统、存储介质及车辆,涉及汽车技术领域,所述方法包括:获取车辆当前时刻的车辆状态,根据所述车辆状态判断当前时刻是否满足预设的熄火条件;若是,控制发动机进行降扭处理,并控制ISG电机对发动机的发动机转速进行维持;获取所述发动机的实际扭矩,判断所述发动机的实际扭矩是否小于预设的扭矩阈值;若是,控制所述发动机进行停机处理,并控制所述ISG电机输出倒拖熄火扭矩以降低所述发动机转速;获取所述发动机的发动机转速,判断所述发动机转速是否等于预设的目标转速;若是,则发动机完成熄火。本发明旨在降低混合动力车辆中发动机熄火时产生的异响和抖动,提升熄火品质,提升NVH表现。
Hybrid vehicle engine flameout control method and system, storage medium and vehicle
混动车辆发动机熄火控制方法、系统、存储介质及车辆
2024-08-09
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 |
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