Patent · US Expired

Method and device for operating a combustion engine

US7127347B2 · kind B2 · utility

8Cited by

1References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Eduard Moser · Ludwigsburg, DE
Wolf Edelmann · Kornwestheim, DE
Prasanta Sarkar · Narayanpur, IN

Key dates

Filing date	Aug 9, 2005
Grant date	Oct 24, 2006
Priority date	—
Expiry date	Aug 9, 2025

Classification

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

Abstract

A method and a device for operating a combustion engine allow a plausibility check of two pressure sensors in a mass-flow line of the combustion engine in any operating range of the combustion engine. At least one component effecting a pressure drop is provided in the mass-flow line, and a first pressure is measured upstream from the at least one component with the aid of a first pressure sensor, and a second pressure is measured downstream from the at least one component with the aid of a second pressure sensor. The first pressure sensor and the second pressure sensor are checked for plausibility as a function of at least one modeled variable characterizing at least one pressure drop in the mass-flow line between the first pressure sensor and the second pressure sensor.

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