Transient tire slip losses using the brush theory
Journal article, 2024

Tire slip losses have been shown to have a significant impact on vehicle performance in terms of energy efficiency, thus requiring accurate studies. In this paper, the transient dissipation mechanisms connected to the presence of micro-sliding phenomena occurring at the tire–road interface are investigated analytically. The influence of a two-dimensional velocity field inside the contact patch is also considered in light of the new brush theory recently developed by the authors. Theoretical results align with findings already known from literature but suggest that the camber and turn spins contribute differently to the slip losses and should be regarded as separate entities when the camber angle is sufficiently large. The present work shows that an additional amount of power which relates to the initial sliding conditions is generated or lost during the unsteady-state maneuvers. A simple example is presented to illustrate the discrepancy between the microscopic and macroscopic approaches during a transient maneuver.

tire models

slip losses

energy losses

transient tire dynamics

Brush model

Author

Luigi Romano

Chalmers, Mechanics and Maritime Sciences (M2), Vehicle Engineering and Autonomous Systems

Francesco Timpone

University of Naples Federico II

Fredrik Bruzelius

Chalmers, Mechanics and Maritime Sciences (M2), Vehicle Engineering and Autonomous Systems

Bengt J H Jacobson

Chalmers, Mechanics and Maritime Sciences (M2), Vehicle Engineering and Autonomous Systems

Tire Science and Technology

0090-8657 (ISSN)

Vol. 52 1 51-75

COVER – Real world CO2 assessment and Vehicle enERgy efficiency

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

Swedish Energy Agency (2017-007895), 2018-01-01 -- 2021-12-31.

Driving Forces

Sustainable development

Areas of Advance

Transport

Subject Categories

Applied Mechanics

Vehicle Engineering

Control Engineering

DOI

10.2346/tire.22.20002

More information

Latest update

5/29/2024