The invention provides a vehicle speed pre-regulation control method and device, a vehicle and a storage medium. The method comprises the steps that when a request that a vehicle enters a direct drive mode or a pre-gear-engaging request is received, whether the rotating speed difference of a synchronizer in a DHT power assembly of the vehicle is larger than a preset rotating speed threshold value or not is detected; when the rotating speed difference of the synchronizer is larger than a preset rotating speed threshold value, the target rotating speed of the engine is determined according to the current vehicle speed and the rotating speed ratio of gears in the DHT power assembly; after the engine is started, the clutch is controlled to enter a sliding friction mode, and the rotating speed of the engine is controlled to be the target rotating speed to reduce the rotating speed difference of the synchronizer; and when the rotating speed difference of the synchronizer meets a second preset rotating speed threshold value, the DHT power assembly is controlled to conduct gear engaging operation. The target rotating speed of the engine can be determined in a speed pre-regulation mode, the rotating speed of the engine is controlled to be the target rotating speed, the rotating speed difference of the synchronizer is reduced, accordingly, pre-gear engagement is canceled, and the driving range of the vehicle is increased.

    本发明提供一种车辆预调速控制的方法、装置、车辆及存储介质。该方法包括:当接收到车辆进入直驱模式请求或预挂档请求时,检测车辆的DHT动力总成中的同步器的转速差是否大于预设转速阈值;当同步器的转速差大于预设转速阈值时,根据当前车速和DHT动力总成中的齿轮的转速比确定发动机的目标转速;在发动机启动后,控制离合器进入滑摩模式,并控制发动机的转速为目标转速以减小同步器的转速差;当同步器的转速差满足第二预设转速阈值时,控制DHT动力总成进行挂挡操作。本发明能够采用预调速方式确定发动机的目标转速,控制发动机的转速为目标转速,降低同步器的转速差,从而取消预挂挡,增加车辆的续驶里程。


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    Title :

    Vehicle speed pre-regulation control method and device, vehicle and storage medium


    Additional title:

    车辆预调速控制的方法、装置、车辆及存储介质


    Contributors:
    LIU ZHIGANG (author)

    Publication date :

    2023-12-22


    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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