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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.:

US 9724995 B1

PDFFull Text
Date of Patent:
Aug. 08, 2017

Filed:

Mar. 05, 2012

Diagnostic method for motor

Applicant:

Takayoshi Ozaki, Iwata, JP;

Inventor:

Takayoshi Ozaki, Iwata, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:

Bickey Dhakal

Int. Cl.
CPC ...
H02P 1/04 (2006.01); B60L 3/04 (2006.01); B60L 3/00 (2006.01); B60L 15/20 (2006.01); B60W 50/02 (2012.01); B60K 7/00 (2006.01); B60L 11/18 (2006.01); F16H 57/04 (2010.01); G01N 33/28 (2006.01); F16H 1/32 (2006.01);
U.S. Cl.
CPC ...
B60L 3/04 (2013.01); B60K 7/0007 (2013.01); B60L 3/0061 (2013.01); B60L 11/1818 (2013.01); B60L 15/2036 (2013.01); B60L 15/2072 (2013.01); B60W 50/0205 (2013.01); F16H 57/0405 (2013.01); F16H 57/0476 (2013.01); G01N 33/2888 (2013.01); B60K 2007/0092 (2013.01); B60L 2240/36 (2013.01); B60L 2240/425 (2013.01); B60L 2240/427 (2013.01); B60L 2240/429 (2013.01); B60L 2240/80 (2013.01); B60L 2250/10 (2013.01); B60L 2250/16 (2013.01); B60W 2050/022 (2013.01); F16H 1/32 (2013.01); Y02T 10/645 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/72 (2013.01); Y02T 10/7275 (2013.01); Y02T 90/14 (2013.01);
Abstract

In a diagnostic device and a diagnostic method for a motor unit of an electric vehicle, an oil degradation/others detection unit is provided which is configured to detect at least any one detection item of a contamination degree, a degradation degree, and an oil amount of an oil used for cooling a motor unit or a reduction gear unit during a non-traveling period when the vehicle is powered on. An abnormalities-time control unit is provided which is configured to send notice of abnormalities of an oil supply system or not permit start of rotation of the motor unit when a detection value detected by the oil degradation/others detection unit is out of a setting range.

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