The Advanced Light-Duty Powertrain and Hybrid Analysis (ALPHA) tool was created by EPA to estimate greenhouse gas (GHG) emissions from light-duty (LD) vehicles [1]. ALPHA is a physics-based, forward-looking, full vehicle computer simulation capable of analyzing various vehicle types combined with different powertrain technologies. The software tool is a MATLAB/Simulink based desktop application. In order to model the behavior of current and future vehicles, an algorithm was developed to dynamically generate transmission shift logic from a set of user-defined parameters, a cost function (e.g., engine fuel consumption) and vehicle performance during simulation.This paper presents ALPHA's shift logic algorithm and compares its predicted shift points to actual shift points from a mid-size light-duty vehicle and to the shift points predicted using a static table-based shift logic as calibrated to the same vehicle during benchmark testing. An explanation of, and a process for tuning, the user defined parameters is presented and example applications of the algorithm in transmission and engine sensitivity studies are described.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development and Testing of an Automatic Transmission Shift Schedule Algorithm for Vehicle Simulation


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Barba, Daniel (Autor:in) / Kargul, John (Autor:in) / Newman, Kevin (Autor:in)

    Kongress:

    SAE 2015 World Congress & Exhibition ; 2015


    Erschienen in:

    Erscheinungsdatum :

    14.04.2015


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Development and Testing of an Automatic Transmission Shift Schedule Algorithm for Vehicle Simulation

    Newman, Kevin / Kargul, John / Barba, Daniel | British Library Conference Proceedings | 2015



    Optimal Efficiency Shift Schedule of Automatic Transmission for Construction Vehicle

    Kang, Huai-Liang / Gong, Jie / Zhao, Ding-Xuan et al. | Tema Archiv | 2012


    Optimal Efficiency Shift Schedule of Automatic Transmission for Construction Vehicle

    Kang, Huai Liang ;Gong, Jie ;Zhao, Ding Xuan | Trans Tech Publications | 2012


    Study on Shift Schedule and Auto-Controlling Simulation of Automatic Transmission

    Jie, G. / Dingxuan, Z. | British Library Online Contents | 2001