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:
Oct. 06, 1992
Filed:
Feb. 10, 1992
Applicant:
Inventors:
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
36443108 ; 123425 ; 123435 ; 73116 ;
Abstract
In order to determine the characteristics of combustion which takes place in the combustion chamber of an internal combustion engine, the pressure in the chamber is sampled at predetermined intervals over a predetermined sampling range, the values are mathematically processed in a manner to obtain the position of center of gravity for the instant combustion and the COG position is then compared with pre-recorded data to determine the actual nature of the combustion. Embodiments of the invention improve on the COG position derivation by screening the data with respect to the highest of the sampled values or modifying all of the data with respect to the lowest of the sampled values.