Abstract
This paper discusses the application of noncontact methods to analyze the tire-surface contact interaction. This approach uses the tire test bench with the set of contact patch monitoring based on image processing procedures. The first part of this paper presents the results of experimental estimation of the contact patch area depending on the normal wheel load and inflation pressure for different car tires. The data were obtained for test bench conditions on the basis of the visual processing of tread footprint. Further, the contact length in the cohesion area during wheel rolling for single points on the tire profile has been chosen as a benchmark criterion. This paper has analyzed the influence of the wheel normal load and tire inflation pressure on the contact length with small rolling velocities. The results of the investigations are given for winter and racing tires with different grades of wear.
Highlights
The permanent development of new methods in simulation and experimental research on contact processes of tiresurface interaction furnishes an opportunity to perfect both the tire construction and the automotive control systems considering the wheel dynamics
The first part of this paper presents the results of experimental estimation of the contact patch area depending on the normal wheel load and inflation pressure for different car tires
(3) The difference in the contact lengths for two random points on the tire surface can be up to 15%–20% for all modes of performed tests, even for the same tread elements. This conclusion is of fundamental importance since it allows the contact processes due to tire rolling to be considered as objects of the uncertain dynamics
Summary
The permanent development of new methods in simulation and experimental research on contact processes of tiresurface interaction furnishes an opportunity to perfect both the tire construction and the automotive control systems considering the wheel dynamics. The complicated mathematical apparatus describing the tire contact processes, which is typical for many up-to-date research works, does not always allow easy-to-use assessment of such fundamental parameters as contact patch area or pneumatic trail. An analysis of related research sources has revealed that the following theoretical methods are most commonly used for assessing tire contact characteristics:. Within the framework of this paper, another approach is considered. It is based on a combination of a nondestructive measuring technique and visual information processing. This paper advances the results obtained by the author and published in [16, 17]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
