Estimation of Tire Normal Forces including Suspension Dynamics

Tire normal forces are difficult to measure, but information on the vehicle normal force can be used in many automotive engineering applications, e.g., rollover detection and vehicle and wheel stability. Previous papers use algebraic equations to estimate the tire normal force. In this article, the...

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Main Authors: Louis Filipozzi, Francis Assadian, Ming Kuang, Rajit Johri, Jose Velazquez Alcantar
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/9/2378
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author Louis Filipozzi
Francis Assadian
Ming Kuang
Rajit Johri
Jose Velazquez Alcantar
author_facet Louis Filipozzi
Francis Assadian
Ming Kuang
Rajit Johri
Jose Velazquez Alcantar
author_sort Louis Filipozzi
collection DOAJ
description Tire normal forces are difficult to measure, but information on the vehicle normal force can be used in many automotive engineering applications, e.g., rollover detection and vehicle and wheel stability. Previous papers use algebraic equations to estimate the tire normal force. In this article, the estimation of tire normal force is formulated as an input estimation problem. Two observers are proposed to solve this problem by using a quarter-car suspension model. First, the Youla Controller Output Observer framework is presented. It converts the estimation problem into a control problem and produces a Youla parameterized controller as observer. Second, a Kalman filter approach is taken and the input estimation problem is addressed with an Unbiased Minimum Variance Filter. Both methods use accelerometer and suspension deflection sensors to determine the vehicle normal force. The design of the observers is validated in simulation and a sensitivity analysis is performed to evaluate their robustness.
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spelling doaj.art-c075ef60bbef4f82965afeaf33755fa22023-11-21T16:42:24ZengMDPI AGEnergies1996-10732021-04-01149237810.3390/en14092378Estimation of Tire Normal Forces including Suspension DynamicsLouis Filipozzi0Francis Assadian1Ming Kuang2Rajit Johri3Jose Velazquez Alcantar4Department of Mechanical and Aerospace Engineering, University of California, Davis, CA 95616, USADepartment of Mechanical and Aerospace Engineering, University of California, Davis, CA 95616, USAAdvanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USAAdvanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USAAdvanced Research and Engineering, Ford Motor Company, Dearborn, MI 48126, USATire normal forces are difficult to measure, but information on the vehicle normal force can be used in many automotive engineering applications, e.g., rollover detection and vehicle and wheel stability. Previous papers use algebraic equations to estimate the tire normal force. In this article, the estimation of tire normal force is formulated as an input estimation problem. Two observers are proposed to solve this problem by using a quarter-car suspension model. First, the Youla Controller Output Observer framework is presented. It converts the estimation problem into a control problem and produces a Youla parameterized controller as observer. Second, a Kalman filter approach is taken and the input estimation problem is addressed with an Unbiased Minimum Variance Filter. Both methods use accelerometer and suspension deflection sensors to determine the vehicle normal force. The design of the observers is validated in simulation and a sensitivity analysis is performed to evaluate their robustness.https://www.mdpi.com/1996-1073/14/9/2378normal force estimationunbiased minimum variance estimationcontroller output observeryoula parameterization
spellingShingle Louis Filipozzi
Francis Assadian
Ming Kuang
Rajit Johri
Jose Velazquez Alcantar
Estimation of Tire Normal Forces including Suspension Dynamics
Energies
normal force estimation
unbiased minimum variance estimation
controller output observer
youla parameterization
title Estimation of Tire Normal Forces including Suspension Dynamics
title_full Estimation of Tire Normal Forces including Suspension Dynamics
title_fullStr Estimation of Tire Normal Forces including Suspension Dynamics
title_full_unstemmed Estimation of Tire Normal Forces including Suspension Dynamics
title_short Estimation of Tire Normal Forces including Suspension Dynamics
title_sort estimation of tire normal forces including suspension dynamics
topic normal force estimation
unbiased minimum variance estimation
controller output observer
youla parameterization
url https://www.mdpi.com/1996-1073/14/9/2378
work_keys_str_mv AT louisfilipozzi estimationoftirenormalforcesincludingsuspensiondynamics
AT francisassadian estimationoftirenormalforcesincludingsuspensiondynamics
AT mingkuang estimationoftirenormalforcesincludingsuspensiondynamics
AT rajitjohri estimationoftirenormalforcesincludingsuspensiondynamics
AT josevelazquezalcantar estimationoftirenormalforcesincludingsuspensiondynamics