logo

Standards Manage Your Business

We Manage Your Standards

    Log in / Signup cart wishlist
    SAE

    SAE 2017-01-1111 : 2017

    Model-Based Wheel Torque and Backlash Estimation for Drivability Control

    Standard Details

    To improve torque management algorithms for drivability, the powertrain controller must be able to compensate for the nonlinear dynamics of the driveline. In particular, the presence of backlash in the transmission and drive shafts excites sharp torque fluctuations during tip-in or tip-out transients, leading to a deterioration of the vehicle drivability and NVH. This paper proposes a model-based estimator that predicts the wheel torque in an automotive drivetrain, accounting for the effects of backlash and drive shaft flexibility. The starting point of this work is a control-oriented model of the transmission and vehicle drivetrain dynamics that predicts the wheel torque during tip-in and tip-out transients at fixed gear. The estimator is based upon a switching structure that combines a Kalman Filter and an open-loop prediction based on the developed model. The estimator relies only on measurements and signals that are commonly available in production vehicles, and in this paper is implemented in real-time using a rapid prototyping ECU. The estimator is verified experimentally on a test vehicle on a chassis dynamometer.

    Cross Reference:

    General Information

    Status : ACTIVE
    Standard Type: Main
    Document No: SAE 2017-01-1111 : 2017
    Document Year: 2017
    Preview Document

    Life Cycle

    Currently Viewing

    ACTIVE
    SAE 2017-01-1111 : 2017
    Knowledge Corner

    Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!

    © Copyright 2024 BSB Edge Private Limited.

    Enquire now +
    This Website Uses Cookies to Manage Services