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Appl. Sci. 2017, 7(12), 1230; doi:10.3390/app7121230

Road Friction Virtual Sensing: A Review of Estimation Techniques with Emphasis on Low Excitation Approaches

School of Mechanical, Aerospace, and Automotive Engineering, Coventry University, Coventry CV1 5FB, UK
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Received: 26 October 2017 / Accepted: 24 November 2017 / Published: 28 November 2017

Abstract

In this paper, a review on road friction virtual sensing approaches is provided. In particular, this work attempts to address whether the road grip potential can be estimated accurately under regular driving conditions in which the vehicle responses remain within low longitudinal and lateral excitation levels. This review covers in detail the most relevant effect-based estimation methods; these are methods in which the road friction characteristics are inferred from the tyre responses: tyre slip, tyre vibration, and tyre noise. Slip-based approaches (longitudinal dynamics, lateral dynamics, and tyre self-alignment moment) are covered in the first part of the review, while low frequency and high frequency vibration-based works are presented in the following sections. Finally, a brief summary containing the main advantages and drawbacks derived from each estimation method and the future envisaged research lines are presented in the last sections of the paper. View Full-Text
Keywords: road friction potential; automotive virtual sensing; slip-based friction estimation; noise-based friction estimation; vibration-based friction estimation road friction potential; automotive virtual sensing; slip-based friction estimation; noise-based friction estimation; vibration-based friction estimation
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Acosta, M.; Kanarachos, S.; Blundell, M. Road Friction Virtual Sensing: A Review of Estimation Techniques with Emphasis on Low Excitation Approaches. Appl. Sci. 2017, 7, 1230.

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