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:
Jan. 29, 1991
Filed:
Sep. 26, 1989
Applicant:
Inventor:
Jurgen Schenk, Albershausen, DE;
Assignee:
Daimler-Benz AG, , DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; F02P / ; F02P / ;
U.S. Cl.
CPC ...
123418 ; 123421 ; 123422 ;
Abstract
In a characteristic-diagram ignition of an internal combustion engine, knocking should be avoided even if there is a sudden change in load or speed. For this purpose, a correction value in the 'retard' direction, the amount of which is dependent both on the intake air temperature and on the engine speed, is superposed on the characteristic-diagram ignition point determined. After the retardation has been carried out, the correction value is adjusted within a selectable time in the 'advance' direction until the instantaneously valid characteristic-diagram ignition point is reattained.