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. 13, 2001
Filed:
Jul. 29, 1999
DaimlerChrysler AG, Stuttgart, DE;
Abstract
A method for setting the torque in an internal combustion engine determines a set air mass and a corresponding throttle valve setting from a set torque in a control tract. An actual air mass allows the difference between a set air mass and the actual air mass to be determined by comparing a set value and the actual value. The controlling effort for setting a desired torque will be reduced. A correction value for the difference between the actual and set values of the air mass is calculated whereby an adaptation of the control tract to the difference is performed. Thereby, in the control tract, a correspondingly adapted throttle valve position will then be associated with a set torque that is to be established. A compensation of the previously determined difference between the set value and the actual value of the air mass is produced. An actual fuel mass fed to the combustion chambers can be utilized for determining the actual air mass, as can a fuel/air mass ratio of a mixture fed to the combustion chambers.