An imbalance detection device is provided. An obtainment process includes obtaining a rotation waveform variable based on a detection value of a sensor that detects a rotational behavior of a crankshaft, and an air-fuel ratio detection variable in each of a plurality of first intervals. A calculation process includes calculating an imbalance variable based on an output of a mapping having a value obtained by the obtainment process as an input. The imbalance variable indicates a degree of variations in an air-fuel ratio of the internal combustion engine. The rotation waveform variable indicates a difference between instantaneous speed variables that are variables corresponding to the rotational speed of the crankshaft in each of the second intervals.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    IMBALANCE DETECTION DEVICE, IMBALANCE DETECTION SYSTEM, DATA ANALYSIS DEVICE, AND CONTROLLER FOR INTERNAL COMBUSTION ENGINE


    Beteiligte:
    MUTO HARUFUMI (Autor:in) / KATAYAMA AKIHIRO (Autor:in) / MORI KOHEI (Autor:in) / HASHIMOTO YOSUKE (Autor:in)

    Erscheinungsdatum :

    2020-08-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



    Imbalance detection device, imbalance detection system, data analysis device, and controller for internal combustion engine

    MUTO HARUFUMI / KATAYAMA AKIHIRO / MORI KOHEI et al. | Europäisches Patentamt | 2022

    Freier Zugriff


    INTERNAL AIR PRESSURE IMBALANCE (IAPI) ENGINE

    BLANKMAN STEVEN | Europäisches Patentamt | 2017

    Freier Zugriff

    Internal air pressure imbalance (IAPI) engine

    BLANKMAN STEVEN MICHAEL | Europäisches Patentamt | 2017

    Freier Zugriff

    Vehicle force imbalance detection

    RAAD JOSEPH M / SLAVIN DANIEL F / RECKER DARREL ALAN et al. | Europäisches Patentamt | 2020

    Freier Zugriff