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Correlation of Subjective and Objective on Centre Steering Feel

Article of Honda R&D Technical Review Vol.17 No.2

Summary

Previous studies have described a new analysis technique for objective measurements of passenger car steering systems carried out using the ISO standards. This analysis technique is based on deriving linearized stiffness and damping, which are objective metrics, from the non-linear results typically obtained for vehicles.
In this paper, the previous work is extended by carrying out a more comprehensive study of the correlation between these objective metrics and driver subjective assessments using a wide range of vehicles.
It is concluded that subjective assessments of on centre steering effort level, response level, friction and delay correlate well in many cases with the proposed objective metrics.

Reference

(1) Tokunaga, H., Misaji, K., Takimoto, S., Shimizu, Y., Shibata, K.: Steer Feel Evaluation Method Based on “Analytical Method of Equivalent Linear System using the Restoring Force Model of Power Function Type”, AVEC2002, Hiroshima (2002), pp.849-854
(2) Misaji, K., Tokunaga, H., Takimoto, S., Shimizu, Y., Shibata, K.: Vehicle Dynamics Evaluation by “Analytical Method of Equivalent Linear System using the Restoring Force Model of Power Function Type”, AVEC2002, Hiroshima (2002), pp.843-848
(3) Norman, K.D.: Objective Evaluation of On-Center Handling Performance, SAE Paper 840069, Society of Automotive Engineers, Detroit MI (1984)
(4) ISO 136704-1:2003(E) First Edition: Road Vehicles – Test Method for the Qualification of On-Centre Handling – Part 1: Weave Test (2003)
(5) James, G.: Modern Engineering Mathematics, Published by Addison-Welsey, ISBN = 0-201-18054-5 (1994)

Author (organization or company)

Chris Regan(Honda R&D Europe (UK) Ltd.)、Blake Siegler(Honda R&D Europe (UK) Ltd.)

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