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:
Mar. 10, 1998
Filed:
Jul. 22, 1991
Applicant:
Inventors:
Dah-Lain Tang, Canton, MI (US);
Man-Feng Chang, Troy, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
36443107 ; 36443103 ; 123417 ; 123418 ; 123419 ;
Abstract
Using a plurality of engine position reference pulses for each cylinder event, several reference periods for each cylinder event are defined and the engine speed can be accurately predicted for the current reference period and for future reference periods using position data from only the current combustion interval. For speed control the start of injection and start of spark dwell are computed based on predicted engine speeds for periods after those functions are started. Adaptive prediction gains are used to update the prediction algorithms to reflect the current engine operation conditions and minimize prediction error.