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:
Aug. 13, 1985
Filed:
Dec. 18, 1981
Yuzo Koyanagi, Warabi, JP;
Sanwa Seiki Mfg. Co., Ltd., Saitama, JP;
Abstract
A digital control method for controlling a relative rotational phase angle p.theta. or the like in a fuel injection pump of an automobile. Decision is made of whether two successive deviations Er between the detected values and a target value are larger than a minimum reference deviation Ero or not. If they are larger than the Ero, decision is made of whether the signs of both the deviations are positive and/or negative. If both signs are positive, a given duration dTs is added to a fundamental duration ts of the next command signal for control. If both signs are different, a predetermined duration dTs is subtracted from the fundamental duration ts of the next command signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile