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:
Apr. 10, 1990
Filed:
May. 01, 1989
Applicant:
Inventor:
Michael Holmes, Solihull, GB;
Assignee:
Lucas Industries public limited company, Birmingham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123419 ; 123436 ; 36443108 ;
Abstract
An adaptive control system for an internal combustion engine has a mixture control device and an ignition timing control device. Combustion performance, such as engine roughness is measured and mixture varied about a base value to achieve a desired performance. Ignition timing is compensated for the mixture variation by perturbing ignition timing about a base valve, detecting the slope of engine output with respect to ignition timing and varying the timing to achieve a desired slope.