Methods and systems are provided for controlling a distribution between engine and motor torques for a hybrid electric vehicle operating in a creep mode of operation in response to an engine start request. In one example, responsive to a request to start an engine while a vehicle is being propelled at a predetermined wheel creep torque via an electric motor positioned downstream of a transmission and a torque converter, coordinating an electric motor torque and an engine torque in one of a first mode, second mode, or a third mode depending on whether the electric motor can continue to provide the predetermined wheel creep torque. In this way, engine idle speed may be minimized depending on vehicle operating conditions, which may improve fuel economy.


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    Titel :

    METHODS AND SYSTEM FOR CREEP TORQUE AND TIP IN CONTROL FOR VEHICLES WITH AUTOMATIC TRANSMISSIONS


    Beteiligte:
    MEYER JASON (Autor:in) / ZHAO YANAN (Autor:in) / JOHRI RAJIT (Autor:in) / DOERING JEFFREY ALLEN (Autor:in)

    Erscheinungsdatum :

    2021-03-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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



    Methods and system for creep torque and tip in control for vehicles with automatic transmissions

    MEYER JASON / ZHAO YANAN / JOHRI RAJIT et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Motor-torque-limited power-on upshift control in electric vehicles with automatic transmissions

    Chen, Zhifeng / Liu, Yanfang / Fu, Yanxiao et al. | SAGE Publications | 2016




    AUTOMATIC TRANSMISSIONS AND TORQUE CONVERTERS

    McFARLAND, FOREST | SAE Technical Papers | 1958