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:
Aug. 02, 2005

Filed:

Apr. 20, 2004
Applicants:

Akinori Yamamoto, Kosai, JP;

Junichi Hasegawa, Kariya, JP;

Inventors:

Akinori Yamamoto, Kosai, JP;

Junichi Hasegawa, Kariya, JP;

Assignees:

Asmo Co., Ltd., Shizuoka-pref., JP;

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B019/40 ;
U.S. Cl.
CPC ...
Abstract

It is an object of the present invention to provide a rotational driving apparatus for a motor vehicle, which moves optical axis of headlights in response to a steering angle of a steering wheel, and which can accurately determine that an output shaft is in good operational order, while accepting errors inevitably taking place. According to the present invention, it is determined that the output shaft of the rotational driving apparatus is operating in a good order, when a first and a second detected voltage at a first and a second detection position are within a predetermined error range and when a deferential voltage between the first and second detected voltages is within a certain deferential voltage span.


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