Patent · US Active

Method for controlling boost pressure in an internal combustion engine

US7561956B2 · kind B2 · utility

4Cited by

3References

22Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Guido Ehlers · Wettstetten, DE
Daniel Beese · Braunschweig, DE
Holger Braun · Renningen, DE
Stefan Linka · Gifhorn, DE

Key dates

Filing date	Jul 17, 2007
Grant date	Jul 14, 2009
Priority date	—
Expiry date	Sep 12, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.