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Technology to Predict Input Force to Engine Mount at Rapid Start of MT Vehicle

Article of Honda R&D Technical Review Vol.26 No.2

Summary

Technology was created that gives the capability to predict engine mount input force during rapid starts. This input force is used for the strength design of the engine mounts for cars with a manual transmission (MT). Clutch engagement during a rapid start was modeled from time series characteristics of the clutch clamping force derived from actual measurements of clutch pedal delay and engagement time. The engine mount was modeled by applying force-displacement curves that had been tested up to high load. Wheel torque and engine mount input force were successfully predicted by means of full vehicle simulation using multi-body analysis. The parameters of that model were then changed to the upper limit and lower limit values within their obtainable range to confirm the rate of change in wheel torque and engine mount input force.

Reference

(1) Haga, H.: Evaluation of Road Load Prediction by Multi-body Simulation Including Flex-Body -Load Prediction for Durability Using a Tire Model-, JSAE Annual Congress Proceedings, No. 21-06, p. 9-12 (2006) (in Japanese)
(2) Haga, H.: Evaluation of Road Load Prediction by Multi-body Simulation Including Flex-Body (Second Report) -Load Prediction for Durability Using a Tire Model-, JSAE Annual Congress Proceedings, No. 136-06, p. 11-14 (2006) (in Japanese)
(3) Haga, H.: Evaluation of Road Load Simulation on Rough Road Using a Full Vehicle Model (The Second Report) -Load Prediction for Durability Using a Tire Model-, JSAE Annual Congress Proceedings, No. 123-08, p. 23-26 (2008) (in Japanese)
(4) Shimodaira, T., Kataoka, S., Mori, M., Yokoyama, S.: Development of Road Input Prediction Technology for Setting of Suspension Durability Conditions, Honda R&D Technical Review, Vol. 25, No. 1, p. 79-85
(5) Sakai, E., Tominaga, H., Kato, Y., Yamamoto, N., Matsuki, H.: Development of Technique for Estimating Suspension Input Force During Endurance Run on Rough Road, Mitsubishi Motors Technical Review, No. 17, p. 45-48 (2005) (in Japanese)

Author (organization or company)

Yasufumi JO(Automobile R&D Center)、Takahiko MURATA(Automobile R&D Center)、Masaki OKUMOTO(Automobile R&D Center)、Satoshi YAMASHITA(Automobile R&D Center)

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