A Brake System Coefficient of Friction Estimation Using 3D Friction Maps

The coefficient of friction (COF) is one of the core factors in the evaluation of brake system performance. It is challenging to predict the COF, since it is strongly influenced by several parameters such as contact pressure (<i>p</i>), slip rate (<i>v</i>) and temperature (&...

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Main Authors: Francesco Varriale, Stefano Candeo, Gabriele Riva, Jens Wahlström, Yezhe Lyu
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Lubricants
Subjects:
Online Access:https://www.mdpi.com/2075-4442/10/7/134
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author Francesco Varriale
Stefano Candeo
Gabriele Riva
Jens Wahlström
Yezhe Lyu
author_facet Francesco Varriale
Stefano Candeo
Gabriele Riva
Jens Wahlström
Yezhe Lyu
author_sort Francesco Varriale
collection DOAJ
description The coefficient of friction (COF) is one of the core factors in the evaluation of brake system performance. It is challenging to predict the COF, since it is strongly influenced by several parameters such as contact pressure (<i>p</i>), slip rate (<i>v</i>) and temperature (<i>T</i>) that depend on the driving conditions. There is a need for better models to describe how the brake friction varies under different driving conditions. The purpose of this research is to study the possibility of using 3D friction <i>pvT</i>-maps to estimate the COF of a disc brake system under different driving conditions. The 3D friction <i>pvT</i>-maps are created by filtering results of material tests conducted in a mini-dyno inertia bench. The COF measured under different driving cycles in an inertia dyno bench with the full brake system are compared with the COF estimated by the friction maps coming from the reduced scale dyno bench to investigate the validity of the simulation approach. This study shows that mini dyno bench is suitable to obtain a tribological characterization of the friction pad–disc rotor contact pair and is able to replace the full inertia dyno bench to investigate the brake system performance.
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spelling doaj.art-bd31d7b83d04425395a2fa5be2d2a8282023-12-03T15:19:12ZengMDPI AGLubricants2075-44422022-06-0110713410.3390/lubricants10070134A Brake System Coefficient of Friction Estimation Using 3D Friction MapsFrancesco Varriale0Stefano Candeo1Gabriele Riva2Jens Wahlström3Yezhe Lyu4Brembo S.p.A., 24040 Bergamo, ItalyDepartment of Industrial Engineering, University of Trento, 38123 Trento, ItalyBrembo S.p.A., 24040 Bergamo, ItalyDepartment of Mechanical Engineering Sciences, Lund University, 22100 Lund, SwedenDepartment of Mechanical Engineering Sciences, Lund University, 22100 Lund, SwedenThe coefficient of friction (COF) is one of the core factors in the evaluation of brake system performance. It is challenging to predict the COF, since it is strongly influenced by several parameters such as contact pressure (<i>p</i>), slip rate (<i>v</i>) and temperature (<i>T</i>) that depend on the driving conditions. There is a need for better models to describe how the brake friction varies under different driving conditions. The purpose of this research is to study the possibility of using 3D friction <i>pvT</i>-maps to estimate the COF of a disc brake system under different driving conditions. The 3D friction <i>pvT</i>-maps are created by filtering results of material tests conducted in a mini-dyno inertia bench. The COF measured under different driving cycles in an inertia dyno bench with the full brake system are compared with the COF estimated by the friction maps coming from the reduced scale dyno bench to investigate the validity of the simulation approach. This study shows that mini dyno bench is suitable to obtain a tribological characterization of the friction pad–disc rotor contact pair and is able to replace the full inertia dyno bench to investigate the brake system performance.https://www.mdpi.com/2075-4442/10/7/134friction mapsfriction coefficientsimulationbrake performance
spellingShingle Francesco Varriale
Stefano Candeo
Gabriele Riva
Jens Wahlström
Yezhe Lyu
A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
Lubricants
friction maps
friction coefficient
simulation
brake performance
title A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
title_full A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
title_fullStr A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
title_full_unstemmed A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
title_short A Brake System Coefficient of Friction Estimation Using 3D Friction Maps
title_sort brake system coefficient of friction estimation using 3d friction maps
topic friction maps
friction coefficient
simulation
brake performance
url https://www.mdpi.com/2075-4442/10/7/134
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