The invention discloses an engine shutdown control method and a related device. In response to an obtained shutdown instruction, the torque of an input shaft of a vehicle is reduced, and if the torque of the input shaft is reduced to a torque safety threshold value, an interruption request is sent to disconnect power transmission between the input shaft and an output shaft; torque generated by engine rotating speed fluctuation in the engine shutdown process is prevented from being transmitted to the wheel end, and therefore vibration is restrained. If the power transmission between the input shaft and the output shaft is disconnected, the rotating speed matching request is sent, and the rotating speed of the driving motor is adjusted according to the rotating speed matching condition indicated by the rotating speed matching request, so that the vehicle can be suitable for the mode switching process of the vehicle static working condition and the running working condition; in this way, in the process of switching the multi-power-source mode including the engine to the single-power-source mode for driving the single machine, the rotating speed of the driving motor and the rotating speed of the output shaft can be matched, and vibration generated due to mismatching of the rotating speed is reduced.

    本申请公开了一种发动机停机控制方法及相关装置,响应于获取停机指令,降低车辆的输入轴扭矩,若输入轴扭矩降低至扭矩安全阈值,发送中断请求,以断开输入轴与输出轴之间的动力传递,防止发动机停机过程中发动机转速波动产生的扭矩传递到轮端,从而抑制振动。若输入轴与输出轴之间的动力传递断开,发送转速匹配请求,按照转速匹配请求指示的转速匹配条件调整驱动电机的转速,从而使得还可以车辆不仅可以适用于车辆静止工况还可以适用于行驶的工况的模式切换过程中,即在包括发动机的多动力源模式切换至驱动单机驱动的单一动力源模式的过程中,驱动电机和输出轴之间的转速能够匹配,减少因转速不匹配产生的振动。


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    Title :

    Engine shutdown control method and related device


    Additional title:

    一种发动机停机控制方法及相关装置


    Contributors:
    PENG BINYANG (author) / HUANG QIANQIAN (author) / DENG JINTAO (author) / PAN BINGYU (author) / WANG JINXIN (author)

    Publication date :

    2025-02-07


    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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