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:
Dec. 10, 2019
Filed:
Oct. 31, 2016
Applicant:
Nsk Ltd., Tokyo, JP;
Inventors:
Assignee:
NSK LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/44 (2006.01); F16C 41/00 (2006.01); F16C 19/18 (2006.01); B60C 23/04 (2006.01); B60B 27/00 (2006.01); B60B 35/02 (2006.01); H02K 21/22 (2006.01); H02K 7/18 (2006.01);
U.S. Cl.
CPC ...
G01P 3/446 (2013.01); B60B 27/0068 (2013.01); B60B 35/02 (2013.01); B60C 23/041 (2013.01); B60C 23/0413 (2013.01); B60C 23/0447 (2013.01); B60C 23/0455 (2013.01); F16C 19/186 (2013.01); F16C 41/004 (2013.01); H02K 7/1846 (2013.01); H02K 21/22 (2013.01); F16C 19/18 (2013.01); F16C 2326/02 (2013.01);
Abstract
A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.