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:
Jan. 05, 2021
Filed:
Aug. 16, 2017
Applicant:
Nissan Motor Co., Ltd., Yokohama, JP;
Inventors:
Katsuyoshi Ogawa, Kanagawa, JP;
Atsuhiro Mori, Kanagawa, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 30/188 (2012.01); B60W 40/068 (2012.01); B60K 17/348 (2006.01); B60W 40/105 (2012.01); B60W 50/00 (2006.01); G01N 19/02 (2006.01);
U.S. Cl.
CPC ...
B60W 30/188 (2013.01); B60K 17/348 (2013.01); B60W 40/068 (2013.01);
Abstract
A vehicle control device includes sensors that detect pulse signals corresponding to rotation of front wheels and of rear wheels of a vehicle, and a controller that increases a count at a rise and a fall of the pulse signals. The controller estimates a road surface friction coefficient based on a time rate of change of a difference between a value counted up using the front wheels and a value counted up using the rear wheels.