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:
Feb. 29, 2000
Filed:
Nov. 30, 1998
Ernst Wild, Oberriexingen, DE;
Klaus Joos, Walheim, DE;
Werner Mezger, Eberstadt, DE;
Klaus Hirschmann, Leonberg, DE;
Thomas Oelker, Muehlacker, DE;
Nikolaus Benninger, Vaihingen, DE;
Werner Hess, Stuttgart, DE;
Christian Tischer, Hemmingen, DE;
Georg Mallebrein, Singen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention is directed to a method for computing a fuel-metering signal for adjusting a pregiven lambda value for the composition of the air/fuel mixture of an internal combustion engine. In the method, a first signal is formed which represents the air quantity flowing into the engine and a second signal is formed on the basis of the first signal so that a first lambda desired value adjusts when using its second signal as a fuel-metering signal. Various additional second lambda desired values are formed as a function of operating parameters of the engine. A selection is made of those second lambda desired values having the highest priority and the fuel-metering signal is formed by weighting the second signal with the second lambda desired value of the highest priority.