Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1998-02-17
1999-01-26
Felber, Joseph L.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
G01M 1702
Patent
active
058640568
ABSTRACT:
A method for providing skid warning, a qualitative assessment of the coefficient of friction in the footprint of each tire, and a tire tread wear out indication to a vehicle operator or other automatic systems, is described. The method uses tread force sensors, which can be installed in a tire with minimal changes to tire materials and manufacturing methods, or after tire manufacture. Tread forces within the footprint of a tire are sensed by means of embedded sensors anchored at one end to the tire structure, and at the other end to the tire tread, such that slipping of small discrete tread elements in contact with the roadway can be detected; thereby enabling the determination of the coefficient of friction before the entire footprint slips. Furthermore, coupling of the sensors between the tire structure and the tread within a small area, enables the system to use tire deformation-induced tread gripping forces to determine the coefficient of friction without the presence of maneuvering loads. Tread wear is also determined by monitoring tread slip behavior and tread forces. A suitable system for conveying the tread force information from each tire and converting it into a measure of the coefficient of friction within each footprint, and then generating a skid warning indication, qualitative coefficient of friction and tread wear out displays is provided.
REFERENCES:
patent: 4545240 (1985-10-01), Leiber
patent: 4779447 (1988-10-01), Rath
patent: 5056354 (1991-10-01), Kuwana
patent: 5247831 (1993-09-01), Fioravanti
patent: 5445020 (1995-08-01), Rosensweig
Tyres, Suspension and Handling by John C. Dixon Cambridge University Press pp. 58-61, 72-75, 85-87, 89-91, 96.
Bell Christopher D.
Bell Larry D.
LandOfFree
Method and apparatus for monitoring the coefficient of friction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for monitoring the coefficient of friction , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for monitoring the coefficient of friction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1451543