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:
May. 16, 1995
Filed:
Feb. 10, 1993
Kazuhide Togai, Takatsuki, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An idle control system includes an engine speed determining unit, a unit for determining the number of operating cylinders, a valve stopping unit for stopping the operation of inlet and exhaust valves of some of the cylinders, an idle control parameter calculating unit, and an engine speed control unit. The idle control parameter calculating unit calculates at least a target idle speed and a target idle position as idle control parameters according to the data on the number of operating cylinders. The engine speed control unit controls an idle speed control valve so as to remove a deviation of an actual engine speed from the target engine speed, based on a target deviation compensating gain or a corrected target position obtained by a calculated position correcting unit. Thus, the idle control method performed by the idle control system allows the engine to operate stably even when the engine is switched to a partial operation from a full operation or vice versa and is subject to a sudden torque change during idling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile