An abnormality detection device for an air-fuel ratio sensor is provided. An air-fuel ratio sensor is provided in an exhaust passage. A storage device stores mapping data specifying a mapping. The mapping outputs an abnormality determination variable using first time series data and second time series data as an input. The first time series data is time series data of an excess amount variable in a first predetermined period. The excess amount variable is a variable corresponding to an excess amount of fuel actually discharged to the exhaust passage in relation to an amount of fuel reacting without excess or deficiency with oxygen contained in a fluid discharged to the exhaust passage. The second time series data is time series data of an air-fuel ratio detection variable in a second predetermined period.


    Access

    Download


    Export, share and cite



    Title :

    Abnormality detection device for air-fuel ratio sensor, abnormality detection system for air-fuel ratio sensor, data analysis device, and control device for internal combustion engine


    Contributors:

    Publication date :

    2020-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF



    Inter-cylinder air-fuel ratio variation abnormality detection apparatus for multicylinder internal combustion engine

    ODA YOSHIHISA / NAKAJIMA ISAO / HAKARIYA MASASHI et al. | European Patent Office | 2015

    Free access

    NEGATIVE PRESSURE SENSOR ABNORMALITY DETECTION DEVICE AND CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

    KAKEI JUNPEI / MORIYA TAKANORI | European Patent Office | 2016

    Free access

    Sensor abnormality detection device

    NGUYEN VAN QUY HUNG | European Patent Office | 2017

    Free access

    SENSOR ABNORMALITY DETECTION DEVICE

    NGUYEN VAN QUY HUNG | European Patent Office | 2016

    Free access

    SENSOR ABNORMALITY DETECTION DEVICE

    NGUYEN VAN QUY HUNG | European Patent Office | 2015

    Free access