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.

Date of Patent:
Nov. 09, 2021

Filed:

Jul. 12, 2019
Applicant:

Volkswagen Aktiengesellschaft, Wolfsburg, DE;

Inventors:

Olaf Hinz, Calberlah, DE;

Laurens Hufer, Wolfsburg, DE;

Roy Lamping, Braunschweig, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 21/12 (2006.01); G01C 22/02 (2006.01);
U.S. Cl.
CPC ...
G01B 21/12 (2013.01); G01C 22/02 (2013.01);
Abstract

The invention relates to a method for estimating a current wheel circumference of at least one wheel arranged on a vehicle, said method comprising: determining a reference speed of the vehicle at a point in time by means of a reference apparatus, detecting a wheel rotational speed of the at least one wheel at said point in time by means of a wheel rotational speed sensor, estimating a single wheel-circumference value based on the determined reference speed and the detected wheel rotational speed for said point in time by means of a calculation apparatus, storing at least the estimated single wheel-circumference value in a circular buffer for said point in time, estimating a current wheel circumference based on the single wheel-circumference values stored in the circular buffer by the calculation apparatus, outputting the estimated current wheel circumference as a wheel circumference signal.


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