Systems and control methods can provide for determining a TrnAin torque request from desired vehicle acceleration in a vehicle that utilizes a WTC architecture to allow for smooth transition between different transmission states, such as torque converter bypass clutch states and shifts between transmission gear ratios. The methods provide consistent and smooth vehicle acceleration profile during transmission state transitions. The methods also provide the ability to track the desired vehicle acceleration consistently from virtual driver demand sources, such as adaptive cruise control, autonomous vehicle, or remote parking, without allocating any additional resource to account for transmission state transitions. The proposed methods are applicable to any TC-based automatic transmission drivetrain, such as conventional powertrain, MHT, P4 HEV, or even BEV powertrains where the motor is located on the impeller side of a torque converter.


    Access

    Download


    Export, share and cite



    Title :

    Management of transmission transitions in wheel torque-based actuator torque determination system


    Contributors:

    Publication date :

    2023-05-09


    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



    MANAGEMENT OF TRANSMISSION TRANSITIONS IN WHEEL TORQUE- BASED ACTUATOR TORQUE DETERMINATION SYSTEM

    RAVICHANDRAN MARUTHI THIRUNINRAVUR / ROY JUDHAJIT / MEYER JASON et al. | European Patent Office | 2022

    Free access

    Management of transmission transitions in actuator torque determination system based on wheel torque

    RAVICHANDRAN MARUTHI THIRUNENRAO / ROY JUDHARJIT / MEYER JASON et al. | European Patent Office | 2022

    Free access

    Wheel Torque-Based Control: Transmission Input Torque Determination and Inertia Compensation

    Meyer, Jason / Roy, Judhajit / Ravichandran, Maruthi et al. | SAE Technical Papers | 2022


    Wheel Torque-Based Control: Transmission Input Torque Determination and Inertia Compensation

    Roy, Judhajit / Ravichandran, Maruthi / Meyer, Jason et al. | British Library Conference Proceedings | 2022


    Providing assist torque without hand wheel torque sensor

    CHAMPAGNE ANTHONY J / KAUFMANN TIMOTHY W / PATTOK KATHRYN L et al. | European Patent Office | 2018

    Free access