The invention provides a starting method and device for an engine in a dual-motor hybrid power system and a vehicle, and belongs to the technical field of vehicles. The dual-motor hybrid power system comprises an engine, a first motor connected with the engine, and a clutch connected between the first motor and the speed change system. The starting method comprises the steps that when an engine starting request is received, current state data of a vehicle are obtained, and the current state data of the vehicle comprise the cooling liquid temperature of an engine; judging a starting mode intented by a driver according to the current state data of the vehicle; according to the cooling liquid temperature of the engine and the starting mode intented by the driver, the oil injection time of the engine corresponding to a target component for starting the engine to be dragged is determined, and the target component is a first motor or a clutch; and in the process that the target component drags the engine to start, the engine is controlled to conduct oil injection within the determined oil injection time. The starting smoothness and safety of the engine can be improved.

    本发明提供了一种双电机混合动力系统中发动机的启动方法和装置及车辆,属于车辆技术领域。双电机混合动力系统包括发动机、与发动机连接的第一电机、以及连接在第一电机和变速系统之间的离合器。该启动方法包括:在接收到发动机启动请求时,获取车辆的当前状态数据,车辆的当前状态数据包括发动机的冷却液温度;根据车辆的当前状态数据判断驾驶员意图的启动模式;根据发动机的冷却液温度和驾驶员意图的启动模式确定与待拖动发动机启动的目标部件相对应的发动机的喷油时间,其中,目标部件是第一电机或离合器;在目标部件拖动发动机启动的过程中控制发动机于所确定的喷油时间进行喷油。本发明可提高发动机启动的平顺性和安全性。


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    Title :

    Method and device for starting engine in dual-motor hybrid power system and vehicle


    Additional title:

    双电机混合动力系统中发动机的启动方法和装置及车辆


    Contributors:
    JING JUNCHAO (author) / LIU YIQIANG (author) / HUANG WEISHAN (author) / ZUO BOTAO (author) / YANG JUN (author) / ZHAO FUCHENG (author) / WANG RUIPING (author) / XIAO YIGE (author) / AN CONGHUI (author)

    Publication date :

    2022-05-31


    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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