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Research on Longitudinal Vibration of MT Vehicle at Clutch Engagement

Article of Honda R&D Technical Review Vol.21 No.1

Summary

Formulas have been developed to describe the longitudinal vibration that occurs when the clutch engages in an MT vehicle, and the vibration waveforms have been used to formulate evaluation indices that possess a high degree of correlation with sensory evaluations.
The parts that contribute to longitudinal vibration of the vehicle when the clutch engages were determined, and a simulation of the first-order vibration of the torsion system of the body and drivetrain was constructed, enabling specifications to be evaluated at the initial stage of vehicle development, when no prototype vehicle has yet been constructed.
The use of the new method in the development of a production vehicle enabled early determination of specifications, such as driveshaft stiffness, and the application of control to rapidly reduce engine speed, enabling effective responses to be proposed.

Reference

(1) Kyuse, M., Watanabe, S., Sakai, T.: A Method for Evaluation of Low-frequency Noise and Vibration in Powertrain Mount Layouts using Degree of Coupling and Physical Matrices, Honda R&D Technical Review, Vol. 13, No. 2, p. 219-224
(2) Thompson, M., Yoneyama, A.: Development of Engine Rock Dampers for the Manual Transmission 2003 Acura 3.2CL Type-S, Honda R&D Technical Review, Vol. 15, No. 1, p. 89-94
(3) Katagiri, Y., Yatani, H., Igami, H., Saito, H., Shiraki, T., Oomori, I.: Research on Longitudinal Vibration of MT Vehicle during Acceleration, Honda R&D Technical Review, Vol. 15, No. 2, p. 139-144
(4) ISO 2631: 1978, Guide for the Evaluation of Human Exposure to Whole-Body Vibration
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(6) Dupuis, H., Zerlett, G.: Whole-body Vibration and Disorders of the Spine, International Archives of Occupational and Environmental Health, Vol. 59, No. 4, p. 323-336 (1987)
(7) Doi, S., Ishiguro, M., Takei, K.: Sharyo no Katoshindou to Norigokochihyouka, Transactions of the Japan Society of Mechanical Engineers, Series C, Vol. 98, No. 920, p. 267 (1992) (in Japanese)
(8) Takai, H.: Norigokoti Hyoukahouhouno Hensen, RTRI Report, Vol. 9, No. 8, p. 61-66 (1995) (in Japanese)
(9) Griffin, M. J., Whitham, E. M., Parsons, K. C.: Vibration and Comfort I. Translational Seat Vibration, Ergonomics, Vol. 25, No. 7, p. 603-630 (1982)
(10) Matsuyama, M., Nakamura, H., Matsuki, Y., Kouda, Y.: A Shaking Vibration Control System using Electronic Throttle Control (ETC) , 1999 JSAE Annual Congress
Proceedings, No. 9-99, p. 5-8 (1999)
(11) Sekozawa, T., Shioya, M., Atago, T.: An Adaptive Engine Control Algorithm for Acceleration Response, SAE Paper, 910256 (1991)

Author (organization or company)

Atsushi YONEYAMA(Automobile R&D Center)、Yoshihiro KATAGIRI(Automobile R&D Center)、Katsuhiko WATANABE(Automobile R&D Center)、Naoki OIE(Automobile R&D Center)

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