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Development of Road Input Prediction Technology for Setting of Suspension Durability Conditions

Article of Honda R&D Technical Review Vol.25 No.1

Summary

Conventionally, durability input conditions for suspension durability performance tests have been set based on wheel input data obtained from actual vehicles. The research discussed in this paper developed a technology for the prediction of the wheel input data necessary for setting durability input conditions without using actual vehicles by means of full vehicle analysis using multi-body simulation. Rough road, curb stone road, winding road, panic braking and pot hole braking were set as the target driving modes, and digital roads were created and an ABS control model was incorporated in order to reproduce the driving modes. In addition, the fact that performing the vehicle set-up assuming the loading of gravity increased accuracy was verified, and it was possible to realize good accuracy in all the target driving modes using a single model. The developed technology makes it possible to set suspension durability conditions without using an actual vehicle.

Reference

(1) Haga, H.: Evaluation of Road Load Prediction by Multi-body Simulation Including Flex-Body - Load Prediction for Durability Using a Tire Model -, 2006 JSAE Annual Congress Proceedings, No. 21-06, p. 9-12
(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 -, 2006 JSAE Annual Congress Proceedings, No. 136-06, p. 11-14
(3) Haga, H.: Evaluation of Road Load Simulation on Rough Road Using Full Vehicle Model (The Second Report) - Load Prediction for Durability Using a Tire Model -, 2008 JSAE Annual Congress Proceedings, No. 123-08, p. 23-26
(4) Nimiya, Y., Sawa, N., Honma, K., Itsubo, T.: Rough Road Load Prediction Method coupled with Suspension Control System, 2009 SAE Annual Congress Proceedings, No. 116-09, p. 9-14 (2009)
(5) Katsuno, M., Sano, M., Tachikawa, K.: Development of a Prediction Method of Curb Impact Load, 1994 JSAE Annual Congress Proceedings, No. 944, p. 145-148
(6) 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)
(7) Hauke, M.: Simulation of Full Vehicle Misuse Behavior, SAE Technical Paper, No. 2004-01-0192(2004)
(8) http://www.mscsoftware.com/events/vpd2006/na/presentations/53.pdf
(9) http://www.cosin.eu/literature

Author (organization or company)

Takamasa SHIMODAIRA(Automobile R&D Center)、Shunsuke KATAOKA(Automobile R&D Center)、Masafumi MORI(Automobile R&D Center)、Shingo YOKOYAMA(Automobile R&D Center)

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