An extended LuGre-brush tyre model for large camber angles and turning speeds
Artikel i vetenskaplig tidskrift, 2023

This paper presents a novel tyre model which combines the LuGre formulation with the exact brush theory recently developed by the authors, and which accounts for large camber angles and turning speeds. Closed-form solutions for the frictional state at the tyre-road interface are provided for the case of constant slip inputs, considering rectangular and elliptical contact patches. The steady-state tyre characteristics resulting from the proposed approach are compared to those obtained by employing the standard formulation of the LuGre-brush tyre models and the exact brush theory for large camber angles. Then, to cope with the general situation of time-varying slips and spins, two approximated lumped models are developed that describe the aggregate dynamics of the tyre forces and moment. In particular, it is found that the transient evolution of the tangential forces may be approximated by a system of two coupled ordinary differential equations (ODEs), whilst the dynamics of the self-aligning moment may be described by combining two systems of two coupled ODEs. Given its stability properties and ease of implementation, the lumped one may be effectively employed for vehicle state estimation and control purposes.

aggregate dynamics

brush models

large camber angles

Tyre modelling

transient tyre dynamics

LuGre tyre model

Författare

Luigi Romano

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Fredrik Bruzelius

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Bengt J H Jacobson

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Vehicle System Dynamics

0042-3114 (ISSN) 1744-5159 (eISSN)

Vol. 61 6 1674-1706

COVER – Bedömning av CO2 och energieffektivitet hos fordon i verklig användning

Energimyndigheten (2017-007895), 2018-01-01 -- 2021-12-31.

VINNOVA (2017-007895), 2018-01-01 -- 2021-12-31.

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Farkostteknik

Reglerteknik

DOI

10.1080/00423114.2022.2086887

Mer information

Senast uppdaterat

2024-02-02