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. 30, 1983
Filed:
May. 28, 1980
Shoji Furuhashi, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A feedback control system for controlling the rotational speed in idling operation of an internal combustion engine mounted on a vehicle by altering an intake air amount is combined with means for detecting a predetermined engine operating condition where the rotational speed of the engine is decreased or restrained by the vehicle speed and means for limiting a control signal manipulating an intake air amount under a predetermined upper limit in the case where the predetermined engine operating condition is detected so that the control system is prevented from excessively increasing an intake air amount. Preferably the operation of the limiting means as well as the operation of the feedback control is performed by a programmed microcomputer.