Patent · US Active

Method for diagnosing an actuator for a boost pressure system of an internal combustion engine

US8788235B2 · kind B2 · utility

2Cited by

1References

27Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Bleile · Stuttgart, DE
Thomas Oertel · Stuttgart, DE

Key dates

Filing date	May 28, 2010
Grant date	Jul 22, 2014
Priority date	—
Expiry date	Jul 6, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for diagnosing an actuator for a boost pressure system of an internal combustion engine, in which the actuator is controlled using a triggering signal, and a state variable of the boost pressure system which is at least an indirect function of the triggering signal is detected. The triggering signal is periodic, and a curve of the values of the state variable is analyzed with regard to at least one periodic characteristic.

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