The invention discloses a hybrid vehicle engine starting control method and system, a storage medium and a vehicle. The method comprises the steps that when a starting instruction is received, the state of the vehicle is detected; when the vehicle state meets the starting condition, the target dragging rotating speed of an engine and the target dragging torque of an ISG motor are calculated according to the vehicle state; the rotating speed of the engine is detected, and whether the rotating speed of the engine reaches the target drag-up rotating speed or not is judged; if yes, the ISG motor is controlled to reduce the rotating torque, and whether the rotating torque of the ISG motor is smaller than a preset torque threshold value or not is judged; if yes, the engine is controlled to ignite and inject oil, and the target rotating speed needing to be maintained by the engine or the target torque of the ISG motor for maintaining the target rotating speed of the engine is calculated; and the ISG motor is controlled to maintain the rotating speed of the engine in a rotating speed control mode or a torque control mode, and engine starting is completed. The invention aims to reduce jitter and rotating speed fluctuation in the starting process of the engine of the hybrid vehicle and improve the ignition success rate of the engine.
本发明公开了一种混动车辆发动机启动控制方法、系统、存储介质及车辆,该方法包括:在接收到启动指令时,对车辆状态进行检测;当车辆状态满足启动条件时,根据车辆状态计算发动机的目标拖起转速以及ISG电机的目标拖起扭矩;对发动机的转速进行检测,判断发动机的转速是否达到目标拖起转速;若是,控制ISG电机降低转动扭矩,判断ISG电机的转动扭矩是否小于预设的扭矩阈值;若是,控制发动机进行点火喷油,并计算发动机需维持的目标转速或ISG电机维持发动机保持目标转速的目标扭矩;控制ISG电机以转速控方式或扭矩控方式维持发动机的转速,发动机启动完成。本发明旨在减小混合动力车辆发动机启动过程的抖动与转速波动,以及提升发动机的点火成功率。
Hybrid vehicle engine starting control method and system, storage medium and vehicle
混动车辆发动机启动控制方法、系统、存储介质及车辆
09.08.2024
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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