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:
Nov. 30, 2021
Filed:
Nov. 29, 2017
Applicant:
Volkswagen Aktiengesellschaft, Wolfsburg, DE;
Inventor:
Frank Bärecke, Wolfsburg, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60W 40/068 (2012.01); B60W 10/20 (2006.01); B60W 10/22 (2006.01);
U.S. Cl.
CPC ...
B60W 40/068 (2013.01); B60W 10/20 (2013.01); B60W 10/22 (2013.01); B60W 2420/42 (2013.01); B60W 2552/40 (2020.02); B60W 2720/26 (2013.01);
Abstract
A method for estimating a friction coefficient of a roadway by a transportation vehicle, wherein a control device of the transportation vehicle receives a first estimated value of a maximum horizontal force from a traction control system that is transmitted to the roadway by a wheel of the transportation vehicle. A control device receives a second estimated value of a wheel contact-patch force of the wheel from a damper controller and calculates the friction coefficient as a vehicle-independent friction coefficient based on the estimated values from the wheel contact-patch force and the horizontal force.