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:
Jul. 14, 2009
Filed:
Jul. 17, 2007
Guido Ehlers, Wettstetten, DE;
Daniel Beese, Braunschweig, DE;
Holger Braun, Gifhorn, DE;
Stefan Linka, Gifhorn, DE;
Guido Ehlers, Wettstetten, DE;
Daniel Beese, Braunschweig, DE;
Holger Braun, Gifhorn, DE;
Stefan Linka, Gifhorn, DE;
Audi AG, Ingolstadt, DE;
Abstract
Method for controlling boost pressure in an internal combustion engine, using a boost pressure control device by means of which from the control deviation between a setpoint boost pressure and an actual boost pressure a manipulated variable is generated which has a D portion supplied by a differential control unit or a damper, the D portion being adapted as a function of a control deviation of a transient effect detected and evaluated for a predetermined evaluation time period, wherein the D portion adaptation includes an operating point-dependent D portion depth adaptation and/or an operating point-dependent D portion time adaptation, whereby the output variable for the differential controller is adapted by the D portion depth adaptation, and the operating time of the D portion corresponding to predetermined boost pressure parameters, in particular characteristic map parameters, is adapted by the D portion time adaptation.