Detection of the local sliding in the tyre-road contact by measuring vibrations on the inner liner of the tyre

Abstract

Intelligent tyres can provide vital information from the tyre-road contact, especially for autonomous cars and intelligent infrastructure. In this paper, the acceleration measured on the inner liner of a tyre is used to detect the local sliding in the tyre-road contact. The Hilbert–Huang transform is utilized to extract the relevant vibration components and localize them in the wheel rotation angle domain. The energy of the vibration in the trailing part of the contact is shown to increase in low-friction conditions which can be related to the sliding of the tread part as a result of the shear stresses exceeding the local friction limit. To separate the effect of the surface roughness and the friction, different road surfaces were used in the measurements. In addition, the effects of different driving manoeuvres on the measured accelerations and the propagation of the sliding zone in the contact patch during braking are illustrated.

A review on in-tire sensor systems for tire-road interaction studies

“…threshold value and filter bandwidth, need to be tuned from case to case. Recent studies in Niskanen and Tuononen (2017) presents a more generic approach based on the Hilbert-Huang-Transform on the acceleration signal. Without the need of typical low-pass filtering, the empirical mode decomposition method offers intrinsic mode functions which has physical meanings.…”

Development and Application of a Modular Automobile Wheel Measuring Instrument

“…The CMM is complex to operate, technically demanding on operators and extremely time-consuming. To make matters worse, the CMM does not support harmonic analysis [4][5][6]. The harmonic analysis is an important means to analyze the signals of wheel detection.…”