A double-clutch transmission catapult starting control method comprises the following steps that (1) a brake pressure threshold value, clutch semi-combination point torque and a rotating speed difference threshold value of the rotating speed of an engine for exiting catapult starting and the rotating speed of an input shaft are set on a TCU; (2) whether a launch starting mode is started or not is judged; (3) after the ejection starting mode is started, the TCU controls a clutch to be combined to a semi-combination point, a transmission system gap is eliminated, and the TCU controls the rotating speed of an engine to the maximum rotating speed of the engine and prepares to start ejection starting; (4) whether ejection starting is started or not is judged; (5) in the ejection starting process, the TCU controls the clutch to be combined to the maximum torque of the engine; the clutch target torque and the engine target rotating speed are determined through calculation, and the TCU controls the clutch to the clutch target torque and controls the engine rotating speed to the engine target rotating speed; and (6) whether ejection starting is quitted or not is judged according to the rotating speed difference value of the engine rotating speed and the input shaft rotating speed.

    一种双离合器变速器弹射起步控制方法,包括以下步骤:1)在TCU设置刹车压力阈值,离合器半结合点扭矩,退出弹射起步的发动机转速与输入轴转速的转速差阈值;2)判断是否进入弹射起步模式;3)进入弹射起步模式后,TCU控制离合器结合至半结合点,消除传动系统间隙,TCU控制发动机转速至最大发动机转速,准备开始进行弹射起步;4)判断是否开始进行弹射起步;5)进行弹射起步过程中,TCU控制离合器结合至发动机最大扭矩;通过计算确定离合器目标扭矩与发动机目标转速,TCU控制离合器至离合器目标扭矩、发动机转速至发动机目标转速;6)根据发动机转速与输入轴转速的转速差值判断是否退出弹射起步。


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    Title :

    Double-clutch transmission ejection starting control method


    Additional title:

    一种双离合器变速器弹射起步控制方法


    Contributors:
    ZENG FENG (author) / RAN LI (author) / HUANG QINGLAN (author) / ZHAO QI (author) / ZENG KAILIAN (author) / CHEN GUOLI (author) / LIU DECAI (author)

    Publication date :

    2022-08-16


    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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