Identifiability of Tyre Force Contact Prediction from Deformation Measurements

The possibility of accurately inferring the external forces applied to a vehicle can directly contribute to better safety systems and thus lowers the chance of injury or loss of life. These external forces are applied to a vehicle through the tyres and are challenging to measure directly. Still, it...

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Autores principales:	Gast R.G., Els P.S., Kok S., Wilke D.N., Botha T.R.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/f92b12bde4bf400380612787f3263845
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id	oai:doaj.org-article:f92b12bde4bf400380612787f3263845
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spelling	oai:doaj.org-article:f92b12bde4bf400380612787f32638452021-12-02T17:13:35ZIdentifiability of Tyre Force Contact Prediction from Deformation Measurements2261-236X10.1051/matecconf/202134700027https://doaj.org/article/f92b12bde4bf400380612787f32638452021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/16/matecconf_sacam21_00027.pdfhttps://doaj.org/toc/2261-236XThe possibility of accurately inferring the external forces applied to a vehicle can directly contribute to better safety systems and thus lowers the chance of injury or loss of life. These external forces are applied to a vehicle through the tyres and are challenging to measure directly. Still, it is possible to measure acceleration, deformation, or strain on the inner surface of a tyre. These measurements are theorized to be strongly linked to the forces produced by the tyre. However, it is still unknown whether or not one can always identify external forces from internal measurements in this way. Research has mainly focused on obtaining estimates of tyre forces rather than establishing to what extent these tyre forces are identifiable. This paper investigates this by conducting a virtual experiment that simulates known external forces applied to the tyre and computes the strains and displacements inside the tyre. A virtual inverse simulation then recovers the external forces from either the deformation or strain computed on the inside of the tyre. The identifiability of the forces recovered by the virtual inverse simulation is investigated by adding artificial measurement noise and initial guess perturbations to quantify the variance in the identified forces.Gast R.G.Els P.S.Kok S.Wilke D.N.Botha T.R.EDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 347, p 00027 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Gast R.G. Els P.S. Kok S. Wilke D.N. Botha T.R. Identifiability of Tyre Force Contact Prediction from Deformation Measurements
description	The possibility of accurately inferring the external forces applied to a vehicle can directly contribute to better safety systems and thus lowers the chance of injury or loss of life. These external forces are applied to a vehicle through the tyres and are challenging to measure directly. Still, it is possible to measure acceleration, deformation, or strain on the inner surface of a tyre. These measurements are theorized to be strongly linked to the forces produced by the tyre. However, it is still unknown whether or not one can always identify external forces from internal measurements in this way. Research has mainly focused on obtaining estimates of tyre forces rather than establishing to what extent these tyre forces are identifiable. This paper investigates this by conducting a virtual experiment that simulates known external forces applied to the tyre and computes the strains and displacements inside the tyre. A virtual inverse simulation then recovers the external forces from either the deformation or strain computed on the inside of the tyre. The identifiability of the forces recovered by the virtual inverse simulation is investigated by adding artificial measurement noise and initial guess perturbations to quantify the variance in the identified forces.
format	article
author	Gast R.G. Els P.S. Kok S. Wilke D.N. Botha T.R.
author_facet	Gast R.G. Els P.S. Kok S. Wilke D.N. Botha T.R.
author_sort	Gast R.G.
title	Identifiability of Tyre Force Contact Prediction from Deformation Measurements
title_short	Identifiability of Tyre Force Contact Prediction from Deformation Measurements
title_full	Identifiability of Tyre Force Contact Prediction from Deformation Measurements
title_fullStr	Identifiability of Tyre Force Contact Prediction from Deformation Measurements
title_full_unstemmed	Identifiability of Tyre Force Contact Prediction from Deformation Measurements
title_sort	identifiability of tyre force contact prediction from deformation measurements
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/f92b12bde4bf400380612787f3263845
work_keys_str_mv	AT gastrg identifiabilityoftyreforcecontactpredictionfromdeformationmeasurements AT elsps identifiabilityoftyreforcecontactpredictionfromdeformationmeasurements AT koks identifiabilityoftyreforcecontactpredictionfromdeformationmeasurements AT wilkedn identifiabilityoftyreforcecontactpredictionfromdeformationmeasurements AT bothatr identifiabilityoftyreforcecontactpredictionfromdeformationmeasurements
_version_	1718381357334265856

Identifiability of Tyre Force Contact Prediction from Deformation Measurements

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