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. 28, 1999
Filed:
Apr. 23, 1998
Hajime Kako, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A valve timing controlling device of internal combustion engine having a means for controlling an actual valve timing which controls the actual valve timing so as to converge at a target valve timing, a means for controlling integration which corrects a controlled variable, the means for controlling actual valve timing, and means for terminating integration which terminates integration performed by the means for controlling integration when the actual valve timing is heading to the target valve timing, by which the actual valve timing can stably be converged at the target valve timing and a steady-state deviation between the actual valve timing and the target valve timing can be eliminated because the means for controlling integration performs integration when the steady-state deviation exists between the actual valve timing and the target valve timing, namely when the actual valve timing does not converge at the target valve timing.