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. 29, 2021
Filed:
Jul. 16, 2019
Applicant:
Keihin Corporation, Tokyo, JP;
Inventors:
Assignee:
KEIHIN CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/20 (2006.01); F01L 9/04 (2006.01);
U.S. Cl.
CPC ...
F02D 41/20 (2013.01); F01L 9/04 (2013.01); F02D 2041/201 (2013.01); F02D 2041/2003 (2013.01); F02D 2041/2006 (2013.01); F02D 2041/2068 (2013.01); F02D 2041/2075 (2013.01);
Abstract
An electromagnetic valve drive device includes: a state detection unit configured to detect an on-state or an off-state of a first switch and a second switch forming a boosting circuit; a boosting control unit configured to control a boosting operation, by performing a synchronous rectification control on switching of the first switch and the second switch, depending on the state of the first switch or the second switch detected by the state detection unit; and a drive circuit configured to drive an electromagnetic valve by supplying a voltage boosted by the boosting operation to the electromagnetic valve.