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:
Dec. 12, 2006
Filed:
Feb. 18, 2005
Applicant:
Hideji Tani, Hashima-gun, JP;
Inventor:
Hideji Tani, Hashima-gun, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); F01L 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a valve controller of a motor utilizing type for improving control accuracy and reducing cost. The valve controller controls valve opening and closing of an engine by utilizing rotation torque of the motor, and has a driving circuit receiving a control signal generated by a control circuit, and applying an electric current to the motor and driving the motor on the basis of a target rotation number of the motor shown by this control signal using a frequency, and a target rotating direction of the motor shown by this control signal using a duty ratio.