The aim of this paper is to describe the development and the applications of a mathematical model for the vehicle driveline used to analyze the link between the performances car and vehicle driveability.It's well known that the car driveability depends by the dynamic response of the driveline car, whereas the classic performances depend by the coupling between engine's steady characteristic (torque and power curves) and vehicle's proprieties (weight, rolling resistance, drag coefficient, etc.) carried out by tuning of suitable gear shift ratios.The definition of the link between the driveability and the performances represents a very hard problem because it exceeds the limits in the field of the subjective perception, where the two aspects are themselves overlapped.To describe in analytical way this problem it's been introduced a new metric, where it's possible to evaluate at the same time the vehicle driveability and car performances. The new metric coordinates are parameters which can identify in synthetic way the trade off between the drive comfort and the performance requirements.The analytical model developed has been validated by comparing before the predicted and the measured longitudinal vehicle acceleration (detail behavior) and after, the predicted and the measured metric point (global behavior).Both results show a good agreement between predictions and tests.It's been made, also, a sensitivity analysis, for the more relevant car driveline parameters to carry out trends. These latter could be used to support the design, in the car concept definition, or testing in diagnostic to explain some experimental results.At last it's been analyzed the influence of the engine control strategies on the dynamic car response, which effects can be well described in the new metric.Moreover this approach (the analytical model with the metric) could be used in the car concept definition, because it may tune the brand car characteristic with its market requirements.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influence of Throttle Control System in Vehicle-Driveline Dynamic and in Car Performance Perception


    Additional title:

    Sae Technical Papers


    Contributors:
    Pilo, L. (author) / Delogu, M. (author)

    Conference:

    International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress ; 2002



    Publication date :

    2002-07-09




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Influence of throttle control system in vehicle-driveline dynamic and in car performance perception

    Delogu,M. / Pilo,L. / Univ.di Firenze,IT et al. | Automotive engineering | 2002


    Vehicle driveline control interface

    HARRIS ROBERT W | European Patent Office | 2023

    Free access

    Vehicle driveline system

    NILSSON KRISTOFFER | European Patent Office | 2021

    Free access

    Vehicle driveline system

    NILSSON HENRIK / BATES WARREN / NILSSON KRISTOFFER | European Patent Office | 2020

    Free access

    VEHICLE DRIVELINE SYSTEM

    NILSSON KRISTOFFER | European Patent Office | 2019

    Free access