Trained raters determined octane requirements of 248 late model cars using the CRC E-15 Technique and a new method simulating customer-type accelerations called the “Supplemental Technique.” These requirements were compared with those reported by “customers” (car owners). The findings from this program substantiate results from a similar study made in 1975.The differences between the customer and rater requirements at the 50th percentiles were 1.9 Research Octane Number (RON) at E-15 part-throttle and 5.6 RON at E-15 maximum octane requirement conditions. With the Supplemental Technique, the difference was about 4 RON. Five percent of the customers objected to knock when using fuel matching rater requirements, 13 percent when using fuel 2 RON lower and 51 percent when using fuel 6 RON lower.Customer requirements were obtained twice, first with a questionnaire in which knock was not mentioned and then with one which posed direct questions regarding knock. Results were the same with both questionnaires.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Customer versus Rater Octane Number Requirements – A 1978 CRC Study


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1980 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1980



    Erscheinungsdatum :

    01.10.1980




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Customer versus Rater Octane Number Requirements - A 1978 CRC Study

    Bettoney,W.E. / Rogers,J.D. / Stanke,G.W. et al. | Kraftfahrwesen | 1980


    1978 CRC customer versus rater octane number requirement program

    Analysis Panel of the Octane Technology and Test Procedures Group | TIBKAT | 1980


    CRC customer versus rater octane number requirement program

    Uihlein,J.P. / Biller,W.F. / Bones,C.J. et al. | Kraftfahrwesen | 1993


    CRC Customer Versus Rater Octane Number Requirement Program

    Evans, Beth / Bonés, C. J. / Siambekos, C. T. et al. | SAE Technical Papers | 1993


    CRC Customer Versus Rater Octane Number Requirement Program

    Uihlein, J. P. / Biller, W. F. / Bones, C. J. et al. | British Library Conference Proceedings | 1993