Into the early-part of the next century, automotive emission standards are becoming stricter around the world. The electrically-heated catalyst (EHC) is well known as an effective technology for the reduction of cold-start hydrocarbon emissions without a significant increase in back pressure. Our extruded, alternator powered EHC (APEHC) manufactured with a unique canning method and equipped with a reliable, water proof electrode has demonstrated excellent durability and reliability, as stated in our previous SAE paper (#960340).The APEHC system discussed in this paper has achieved the Ultra-Low-Emission Vehicle (ULEV) standards, after 100,000 miles of fleet testing, without any failure. This is the final milestone in addressing the EHC as a realistic-production technology for ULEV.With the ability to meet ULEV/Stage III emission targets without a significant increase in back pressure, the EHC will be applied to an especially high performance vehicle with a large displacement engine. For the operating characteristics of this application, higher durability and emission performance of the EHC is required. A newly-designed EHC with a smaller element diameter eliminated substrate deformation and increased the natural frequency.The EHC system with an extruded-APEHC has become a viable technology for MY99 production to meet ULEV/Stage III standards.


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    Titel :

    Development of Extruded Electrically Heated Catalyst System for ULEV Standards


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Abe, Fumio (Autor:in) / Kato, Hiroaki (Autor:in) / Hashimoto, Shigeharu (Autor:in) / Kaneko, Takahisa (Autor:in) / Shimasaki, Yuichi (Autor:in)

    Kongress:

    International Congress & Exposition ; 1997



    Erscheinungsdatum :

    24.02.1997




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Development of extruded electrically heated catalyst system for ULEV standards

    Shimasaki,Y. / Kato,H. / Abe,F. et al. | Kraftfahrwesen | 1997


    Development of Extruded Electrically Heated Catalyst System for ULEV Standards

    Shimasaki, Y. / Kato, H. / Abe, F. et al. | British Library Conference Proceedings | 1997



    Electrically heated catalyst system for low emission standards

    Kaiser,F.W. / Maus,W. / Brueck,R. et al. | Kraftfahrwesen | 1996