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:
Jun. 30, 2009
Filed:
May. 26, 2006
Masayaki Kuwata, Anjo, JP;
Toru Niinomi, Anjo, JP;
Katsutoshi Komatsu, Anjo, JP;
Masao Saitou, Anjo, JP;
Kenji Suzuki, Anjo, JP;
Tomokazu Nomura, Anjo, JP;
Masayaki Kuwata, Anjo, JP;
Toru Niinomi, Anjo, JP;
Katsutoshi Komatsu, Anjo, JP;
Masao Saitou, Anjo, JP;
Kenji Suzuki, Anjo, JP;
Tomokazu Nomura, Anjo, JP;
Aisin A W Co., Ltd., , JP;
Abstract
A failure detection device for detecting a failure of a rotation angle detection sensor, which sensor detects a rotational angle through which a rotary member has rotated, the failure detection device including a first detection element which has an output which increases as the rotational angle of the rotary member increases, a second detection element which has an output that decreases as the rotational angle of the rotary member increases, and a detecting unit that detects the failure of either the first detection element or the second detection element by comparing a calculated value, based on the outputs of both of the first and second detection elements, with at least one predetermined value.