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:
Oct. 18, 2016
Filed:
Sep. 12, 2013
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka-Shi, JP;
Abstract
A valve timing control apparatus includes: an urging member to which a set load is provided to act, to the cam shaft, an urging force from one of the most retard angle position and the most advance angle position toward the intermediate phase position; and a controller configured to sense, as the intermediate phase position, a position at which a relative rotational speed between the driving rotational member and the cam shaft is varied by the relative rotation of the cam shaft beyond a region in which the cam shaft is controlled by the set load of the urging member, when the cam shaft is controlled to be relatively rotated from the one of the most retard angle position and the most advance angle position beyond the intermediate phase position.