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Steering drift and wheel movement during braking: static and dynamic measurements
Klaps, J. Day, Andrew J.
Klaps, J.
Day, Andrew J.
Publication Date
2005
End of Embargo
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© 2005 IMechE. Reproduced in accordance with the publisher's self-archiving policy.
Peer-Reviewed
Yes
Open Access status
Accepted for publication
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Abstract
This paper reports on an experimental investigation into braking-related steering drift in
motor vehicles, and follows on from a previous paper by the authors in which it was concluded that
braking can cause changes in wheel alignment that in turn affect the toe-steer characteristics of each
wheel and therefore the straight-line stability of the vehicle during braking. Changes in suspension
geometry during braking, their magnitude and the relationships between the braking forces and the
suspension geometry and compliance are further investigated in an experimental study of wheel
movement arising from compliance in the front suspension and the steering system of a passenger
car during braking. Using a kinematic and compliance (K&C) test rig, movement of the front wheels
and the suspension subframe, together with corresponding changes in suspension and steering
geometry under simulated braking conditions, have been measured and compared with dynamic
measurements of the centre points of the front wheels. The results have enabled the causes and effects
of steering drift during braking to be better understood in the design of front suspension systems for
vehicle stability during braking.
Version
Accepted manuscript
Citation
Klaps J and Day AJ (2005) Steering drift and wheel movement during braking: static and dynamic measurements. Proceedings of the Insitution of Mechanical Engineers D: Journal of Automobile Engineering. 219(1): 11-19.
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Article