A heavy duty truck includes a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system may include one or more selective catalytic reduction systems, each with a respective heater, and each heater with a respective pair of temperature sensors, one upstream and the other downstream of the heater. Such systems may be used to perform diagnostic methods including populating a lookup table having heat energy supplied to an exhaust gas stream by the diesel engine as a first independent variable, heat energy supplied to the exhaust gas stream by a heater as a second independent variable, and a resulting temperature as an output. Such a lookup table can be used to maintain a temperature of the exhaust gas flow at a constant target temperature.


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    Titel :

    Heater diagnostics in heavy-duty motor vehicle engines


    Beteiligte:

    Erscheinungsdatum :

    2022-08-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    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 / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



    HEATER DIAGNOSTICS IN HEAVY-DUTY MOTOR VEHICLE ENGINES

    SWART CHARLES WAYNE REINHARDT / WEBB CYNTHIA CHAFFIN / MEIJER MAARTEN et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Heavy-duty hercules engines for motor trucks

    Engineering Index Backfile | 1917


    Ford Motor Company's extra heavy duty truck engines

    Gay, W.H. / Tocco, A.J. | Engineering Index Backfile | 1959


    FORD MOTOR COMPANY'S EXTRA HEAVY DUTY TRUCK ENGINES

    TOCCO, A. J. / GAY, W. H. | SAE Technical Papers | 1959