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Reproduction of Engine Torque Fluctuation with Low Inertia and High Stiffness Dynamometer

Article of Honda R&D Technical Review Vol.33 No.2


The dynamometer used in a Virtual and Real Simulator was enhanced to increase the analysis efficiency of issues and events arising from engine torque fluctuation. The contribution of the dynamometer components was clarified using 1D CAE and structural changes were made to expand the reproducible frequency range. As a result, the reproducible torque fluctuation frequencies were expanded, and analysis could be performed using a Virtual and Real Simulator in the operating range where noise and vibration are issues in 4-cylinder and 6-cylinder engines. This bench system can be used to test analyses of mechanisms of drivetrain torsional vibration, such as rattle noise, arising from engine torque fluctuation, without recombining parts. This research can enhance the analysis efficiency of drivetrain torsional vibration issues arising from engine torque fluctuation and contribute to early determination of specifications.


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Author (organization or company)

Keiji SHIOTA(Honda Motor Co., Ltd.)、Masaki SAGAWA(Innovative Research Excellence Power Unit & Energy)、Masafumi AMANO(Honda Motor Co., Ltd.)、Kazuyuki SUETAKE(Honda Motor Co., Ltd.)

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