A transmission launch system includes a control system and a transmission having a plurality of clutches, where actuation of combinations of a predetermined number of clutches provides powerflow for different transmission drive gears. The control system is configured to initiate a performance launch of the vehicle where the transmission is commanded to engage a combination of the predetermined number of clutches corresponding to a forward drive gear. The transmission is then commanded to engage an additional clutch to lock its output shaft such that engine torque is prevented from being transferred to vehicle drive wheels. The engine generates drive torque greater than a capacity of a vehicle brake system and the control system then commands release of the additional clutch thereby unlocking the output shaft and allowing powerflow in the forward drive gear such that the generated engine drive torque is transferred to the drive wheels to propel the vehicle.


    Access

    Download


    Export, share and cite



    Title :

    Vehicle transmission brake launch system and method


    Contributors:

    Publication date :

    2018-01-23


    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 / F16H Getriebe , GEARING



    VEHICLE TRANSMISSION BRAKE LAUNCH SYSTEM AND METHOD

    SOWARDS MICHAEL D / WILDER JAMES M / JOHNSON JOSEPH M | European Patent Office | 2017

    Free access

    LAUNCH CONTROL TRANSMISSION BRAKE

    MADDEN SEAN | European Patent Office | 2021

    Free access

    Vehicle Brake Transmission

    SUN FU-XIAN / CHEN JIUN-JIE / HUANG SHIH-CHIEH | European Patent Office | 2015

    Free access

    Vehicle brake transmission

    SUN FU-XIAN / CHEN JIUN-JIE / HUANG SHIH-CHIEH | European Patent Office | 2015

    Free access

    VEHICLE BRAKE DEVICE, VEHICLE BRAKE METHOD AND VEHICLE BRAKE SYSTEM

    NAKAGAWA SATOSHI | European Patent Office | 2019

    Free access