The invention relates to the technical field of vehicles, and discloses an engine start-stop control method. The method comprises the following steps that: S11, a brake pedal is treaded; S12, the magnitude of a physical quantity is recorded when the current speed of a vehicle is not greater than a first preset speed, and the duration that the speed of the vehicle is not greater than a second preset speed is recorded when the current speed is reduced to the second preset speed until the duration is the maximum value of the physical quantity in a first preset duration and is an execution upper limit; S13, after the duration reaches the first preset duration, the current value of the physical quantity is a comparison value, and the variable quantity of the physical quantity in any second preset duration is an actual variable quantity; S14, if the comparison value is not smaller than the execution upper limit or the actual variable quantity is larger than a preset value, it is judged thata driver intends to shut down; and S15, if an engine meets a basic shutdown condition, the engine enters a shutdown state. According to the engine start-stop control method, the driving intention of the driver can be quickly recognized, and the working state of the engine is confirmed on the basis of judgment on whether the shutdown condition is met or not.

    本发明涉及车辆技术领域,公开一种发动机启停控制方法,包括以下步骤:S11、踩下制动踏板;S12、车辆的当前车速不大于第一预设速度,记录物理量的大小,当前车速降至第二预设速度时记录车辆的车速不大于第二预设车速的时长,直至时长为第一预设时长内物理量的最大值为执行上限;S13、时长达到第一预设时长后,物理量的当前值为比较值且在任意第二预设时长内物理量的变化量为实际变化量;S14、比较值不小于执行上限或者实际变化量大于预设值,则判定驾驶员有停机的意图;S15、发动机满足基本停机条件则发动机进入停机状态。本发明公开的发动机启停控制方法能够快速地识别驾驶员的驾驶意图并结合是否满足停机条件,从而确认发动机的工作状态。


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    Title :

    Engine start-stop control method


    Additional title:

    一种发动机启停控制方法


    Contributors:
    PENG KAI (author) / XU HUALIN (author) / GUAN HAO (author) / HU JUNYING (author) / YAN LUPING (author) / LIU ZHIPENG (author) / LU LAN (author) / HOU ZONGHAN (author) / DI LIWEI (author) / LIU DONGYU (author)

    Publication date :

    2020-09-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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