The invention relates to an engine start-stop control method and device and a readable storage medium, and belongs to the technical field of vehicle control. The method comprises the steps that under the condition that the vehicle speed is within a target range and an accelerator pedal is in a zero working condition, vehicle speed sets and first longitudinal acceleration at different moments are obtained, and then a first slope instantaneous value is determined; and based on the gradient correction factor and the multiple first gradient instantaneous values, a first gradient value of the target vehicle at the parking moment is determined, and under the condition that the first gradient value is smaller than the target value, the engine is controlled to stop working. According to the method, the slope instantaneous value is determined based on the information detected by the existing longitudinal acceleration sensor and the vehicle speed sensor of the vehicle without depending on a special slope detection sensor, so that the manufacturing cost of the vehicle can be saved; besides, the gradient instantaneous value is corrected by adopting the gradient correction factor, and the gradient value can be corrected in time under the condition that the determined gradient value is not accurate, so that the reliability of starting and stopping control of the engine is improved.

    本申请关于一种发动机启停控制方法、装置及可读存储介质,属于车辆控制技术领域,该方法包括:在车速处于目标范围内且油门踏板的处于零工况的情况下,获取不同时刻的车速组和第一纵向加速度,进而确定第一坡度瞬时值;基于坡度修正因子和多个第一坡度瞬时值,确定目标车辆在停车时刻的第一坡度值,在第一坡度值小于目标值的情况下,控制发动机停止工作。上述方法中,不依赖专门的坡道检测传感器,基于车辆现有的纵向加速度传感器和车速传感器检测到的信息,确定坡度瞬时值,能够节省车辆的制造成本;此外,采用坡度修正因子对坡度瞬时值进行修正,在所确定的坡度值不准的情况下,能够及时对坡度值进行修正,进而提高发动机启停控制的可靠性。


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    Titel :

    Engine start-stop control method and device and readable storage medium


    Weitere Titelangaben:

    发动机启停控制方法、装置及可读存储介质


    Beteiligte:
    DU FENG (Autor:in) / SONG MINGZHEN (Autor:in) / WANG WEI (Autor:in)

    Erscheinungsdatum :

    2023-04-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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