We attempt to improve the feeling of acceleration by considering the change in instantaneous torque when the throttle is opened in motorcycles equipped with parallel two cylinder engines. Feeling of acceleration and vibrations for motorcycles with five types of 400cc engines, including 3 types of engines with different crankpin phase angles varying by 90 degrees each along with two variations in the firing interval were assessed by sensory evaluation and instruments. As the result, it was found that there is a correlation between the feeling of acceleration and the change in instantaneous torque caused ba alteration of the crankpin phase angle. It was therefore determined that the feeling of acceleration could be improved by using a crankpin phase angle of 270 degrees relative to crankpin phase angle of 180 or 360 degrees conventionally used in parallel two cylinder engines.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improvement of feeling of motorcycle acceleration by altering the crankpin phase angle


    Additional title:

    Verbesserung der Motorradbeschleunigung durch Änderung des Phasenwinkels des Kurbelwellenstiftes


    Contributors:
    Tsuchida, N. (author) / Kajiwara, K. (author)


    Publication date :

    1997


    Size :

    6 Seiten, 10 Bilder, 1 Tabelle, 5 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Improvement of feeling of motorcycle acceleration by altering the crankpin phase angle

    Tsuchida,N. / Kajiwara,K. / Yamaha Motor,JP | Automotive engineering | 1997


    Crankpin design for electric locomotives

    Burby, J.D. | Engineering Index Backfile | 1926



    One grinder for each crankpin

    Automotive engineering | 1984