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. 03, 1985
Filed:
Jan. 25, 1984
Shigeo Aono, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
The present invention features a control system for controlling the combustion process occurring in the combustion chamber of an internal combustion engine, wherein the exact nature of the combustion pressure generation wave form occurring during a compression and subsequent expansion stroke is determined via determining the nature of the motoring pressure wave during the same compression and expansion strokes and discriminating this form from the actual sensed pressure generation characteristics. The system further permits the effect of various operational parameters such as exhaust gas recirculation, ignition timing, air fuel ratio and the like on the combustion process and therefore on the torque output, fuel consumption and noxious emission levels of the engine, to be predicted and compared with predetermined schedules in order to determine the degree to which adjustment of one or more of the above mentioned operational parameters is necessary to bring the engine performance characteristics into agreement with predetermined requirements.