US 12,134,391 B2
Tire stiffness estimation system
Arash Nouri, Blacksburg, VA (US); and Kanwar Bharat Singh, Bofferdange (LU)
Assigned to The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Nov. 17, 2022, as Appl. No. 18/056,388.
Claims priority of provisional application 63/289,672, filed on Dec. 15, 2021.
Prior Publication US 2023/0182751 A1, Jun. 15, 2023
Int. Cl. B60W 40/12 (2012.01); G01M 17/02 (2006.01); G01P 15/00 (2006.01)
CPC B60W 40/12 (2013.01) [G01M 17/02 (2013.01); G01P 15/00 (2013.01); B60W 2520/10 (2013.01); B60W 2520/105 (2013.01); B60W 2520/26 (2013.01); B60W 2720/00 (2013.01); B60W 2720/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A longitudinal stiffness estimation system for at least one tire supporting a vehicle, the longitudinal stiffness estimation system comprising:
an electronic communication system disposed on the vehicle;
at least one sensor disposed on the vehicle and in electronic communication with the electronic communication system;
a processor accessible through the electronic communication system;
the at least one sensor measuring selected parameters associated with the vehicle and communicating data for the selected parameters through the electronic communication system to the processor;
a mu slip curve generator in communication with the processor and receiving the selected parameters and generating a mu slip curve in real time from the communicated data;
an extraction module in communication with the processor and extracting raw data from a linear portion of the mu slip curve;
a denoising module in communication with the processor and de-noising the raw data from the mu slip curve by determining a pattern from the raw data represented by a vector, an orientation of the vector, and a heading of the vector, wherein the denoising module generates de-noised data; and
a stiffness calculator receiving the de-noised data and generating a longitudinal stiffness estimate for the at least one tire.