Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to air mass flow not reaching a threshold for CAC self-cleansing for a set duration, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request and maximum air mass flow levels for engine misfire.


    Access

    Download


    Export, share and cite



    Title :

    Pilot downshifting system and method


    Contributors:

    Publication date :

    2015-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / 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 / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



    PILOT DOWNSHIFTING SYSTEM AND METHOD

    NORMAN KRISTOFOR ROBERT / YAMADA SHUYA SHARK | European Patent Office | 2015

    Free access

    Transmission climbing and downshifting assisting system and method

    WEI LONGLONG / YAN JIANBO / LIU YI et al. | European Patent Office | 2022

    Free access

    Methods and system for downshifting a transmission

    DOERING JEFFREY ALLEN | European Patent Office | 2020

    Free access

    METHODS AND SYSTEM FOR DOWNSHIFTING A TRANSMISSION

    DOERING JEFFREY ALLEN | European Patent Office | 2018

    Free access

    Methods and system for downshifting during regeneration

    NEFCY BERNARD D / COLVIN DANIEL / NEDOREZOV FELIX et al. | European Patent Office | 2017

    Free access