A synchronization control method includes controlling an engine speed to follow a motor speed as a target speed of the engine when synchronization between the engine speed and the motor speed starts according to a demand for the lock-up of the engine clutch while travelling under the EV mode with the engine clutch opened; estimating the engine speed at a time of a transmission gear ratio change at which the motor speed increases and reaches a preset motor speed, wherein the transmission gear ratio change is carried out at the preset motor speed; calculating the motor speed, which is reduced after the transmission gear ratio change, by using the preset motor speed and information on a gear ratio before and after the transmission gear ratio change; and controlling the engine speed by resetting the target speed to the calculated motor speed as a new target speed of the engine.


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    Title :

    Synchronization control method for engine clutch lock-up in hybrid electric vehicle


    Contributors:

    Publication date :

    2019-07-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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