The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
Dec. 23, 2019
Volvo Car Corporation, Gothenburg, SE;
Tomas Martin Hassel, Torup, SE;
Derong Yang, Gothenburg, SE;
Volvo Car Corporation, Gothenburg, SE;
Abstract
Techniques are described for estimating surface friction coefficients using lateral force excitations of one or more rear wheels of a rear wheel steering vehicle. In one example, a computing system is configured to cause excitation of a rear wheel using a lateral force that causes the rear wheel to initiate turning. The computing system may determine one or more slip angles that result from the excitation and determine a relationship between the lateral force and the slip angles. From the lateral force and slip angle relationship, the computing system may estimate the friction coefficient of a surface and may cause maneuvering of the rear wheel steering vehicle, or of another networked vehicle, to be based at least in part on the friction coefficient estimated for a particular driving surface.