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:
Feb. 19, 2019
Filed:
Apr. 23, 2015
Applicant:
Ntn Corporation, Osaka, JP;
Inventor:
Tomoaki Makino, Iwata, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 7/00 (2006.01); B60L 15/20 (2006.01); B60K 17/04 (2006.01); F16H 57/04 (2010.01); B60K 11/02 (2006.01); B60K 1/00 (2006.01); F16H 1/32 (2006.01);
U.S. Cl.
CPC ...
B60K 7/0007 (2013.01); B60K 17/046 (2013.01); B60L 15/20 (2013.01); F16H 57/0413 (2013.01); F16H 57/0486 (2013.01); B60K 11/02 (2013.01); B60K 2001/006 (2013.01); B60K 2007/0038 (2013.01); B60K 2007/0092 (2013.01); B60L 2220/14 (2013.01); B60L 2220/44 (2013.01); B60L 2240/36 (2013.01); B60L 2240/423 (2013.01); B60L 2240/425 (2013.01); B60Y 2306/03 (2013.01); F16H 2001/325 (2013.01); Y02T 10/645 (2013.01); Y02T 10/72 (2013.01); Y02T 10/7275 (2013.01);
Abstract
An in-wheel motor drive device includes an electric motor to drive a wheel, a wheel support bearing assembly to support the wheel, and a speed reducer to reduce the rotation of the electric motor and then to transmit it to the wheel support bearing assembly, and a lubricant oil is supplied under pressure by an oil pump to the speed reducer to be lubricated. The use is made of a temperature detector to detect the temperature of the lubricant oil or the electric motor and an output limitter to limit the output of the electric motor in the event that the temperature detected by the temperature detector is not higher than a predetermined threshold value.