A Methodology for Identification of Magic Formula Tire Model Parameters from In-Vehicle Measurements

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dc.contributor.authorJonson, Axel
dc.contributor.authorOlsson, Eric
dc.contributor.departmentChalmers tekniska högskola / Institutionen för tillämpad mekaniksv
dc.contributor.departmentChalmers University of Technology / Department of Applied Mechanicsen
dc.date.accessioned2019-07-03T14:16:40Z
dc.date.available2019-07-03T14:16:40Z
dc.date.issued2016
dc.description.abstractAccurate tire modeling is of key importance to the development of modern vehicles. Traditional Flat-Trac testing of tires is expensive and time consuming. In order to increase the efficiency of the vehicle development process, a new method for identifying Magic Formula tire model parameters has been investigated. By driving specific maneuvers with a vehicle instrumented with sensors to measure wheel forces and angles, tire model parameters can be estimated by use of a global optimization algorithm. Full vehicle simulations were made in order to identify the test procedures necessary to provide a representative range of data for a tire. A tire model parameter fitting tool was developed and validated with Flat-Trac datasets. Physical testing was carried out to reproduce the simulated driving maneuvers on a car equipped with wheel force transducers, an inertial measurement device, and a high-speed camera system to measure wheel angles and displacements. Results of estimating the pure slip lateral tire model parameters from the in-vehicle measurements shows good correlation to the original tire model. Furthermore, the tire model parameters identified by this method more accurately represent the behavior of the tire on the test vehicle, without the need to modify scaling parameters. This indicates that this newly proposed method can produce accurate tire model parameters that require less tuning of scaling parameters to accurately represent vehicle behavior.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/239258
dc.language.isoeng
dc.relation.ispartofseriesDiploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden : 2016:60
dc.setspec.uppsokTechnology
dc.subjectFarkostteknik
dc.subjectTransport
dc.subjectVehicle Engineering
dc.subjectTransport
dc.titleA Methodology for Identification of Magic Formula Tire Model Parameters from In-Vehicle Measurements
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
local.programmeAutomotive engineering (MPAUT), MSc
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