The invention relates to the technical field of vehicle control, and provides a vehicle crawling control method, a medium, a vehicle controller and an automatic transmission vehicle. The vehicle creeping control method comprises the steps that when a vehicle enters a creeping working condition, whether the idle speed request value of a transmission is larger than the idle speed value of an engine or not is judged; if yes, determining that the engine speed is equal to the transmission idle speed request value; if not, the idle speed request value of the transmission is updated to be the sum value of the idle speed value of the engine and a preset compensation value, and it is determined that the rotating speed of the engine is equal to the updated idle speed request value of the transmission; and the determined rotating speed of the engine serves as the target idle speed, and the engine is controlled to rise to the target idle speed from the current rotating speed so as to drive the vehicle to creep. The problems that the rotating speed of an engine drops and even flames out when a vehicle enters a creeping working condition in special environments such as low temperature and plateau can be avoided.
本发明涉及车辆控制技术领域,提供一种车辆蠕行控制方法、介质、车辆控制器及自动挡车辆。所述车辆蠕行控制方法包括:在车辆进入蠕行工况时,判断变速器怠速请求值是否大于发动机自身怠速值;若是,则确定发动机转速等于所述变速器怠速请求值;若否,则将所述变速器怠速请求值更新为所述发动机自身怠速值与一预设补偿值的和值,并确定所述发动机转速等于所更新的变速器怠速请求值;以及将所确定的发动机转速作为目标怠速,并控制所述发动机由当前转速上升至所述目标怠速,以驱动车辆蠕行。本发明可以规避低温、高原等特殊环境下,车辆进入蠕行工况而出现的发动机转速下跌,甚至熄火的问题。
Vehicle crawling control method, medium, vehicle controller and automatic transmission vehicle
车辆蠕行控制方法、介质、车辆控制器及自动挡车辆
2022-03-01
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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