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:
Sep. 15, 2015
Filed:
Jul. 05, 2012
Yuji Kakuda, Toyota, JP;
Satoshi Kokubo, Nagoya, JP;
Kenji Ikeda, Nagoya, JP;
Masaki Kobayashi, Okazaki, JP;
Yuuki Ohta, Okazaki, JP;
Yuji Kakuda, Toyota, JP;
Satoshi Kokubo, Nagoya, JP;
Kenji Ikeda, Nagoya, JP;
Masaki Kobayashi, Okazaki, JP;
Yuuki Ohta, Okazaki, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-shi, Aichi, JP;
Abstract
A valve timing adjusting system includes a displacement mechanism unit that displaces a camshaft rotational phase relative to a crankshaft, a locking mechanism unit that locks the rotational phase, and a control unit that controls operations of a hydraulic control valve. The control unit includes a property obtainment unit that obtains property information regarding hydraulic properties, and a lock release process completes locking release by supplying oil pressure to the locking mechanism unit for moving the rotational phase from an intermediate locked phase toward one of a retard/advance position, and then supplying oil pressure to the locking mechanism unit for moving the rotational phase toward the other of the retard/advance position; the rotational phase stands by at a predetermined position of the one of the retard/advance position past the intermediate locked phase during the lock release process, until a standby time has elapsed.