Patent · US Expired

Method and device for testing a fuel metering system

US7380449B2 · kind B2 · utility

1Cited by

5References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Matthias Mrosik · Higashimatsuyama, JP
Marco Gangi · Eßlingen, DE
Udo Schulz · Gießen, DE
Michael Schueller · Friolzheim, DE
Eduard Moser · Ludwigsburg, DE

Key dates

Filing date	Apr 8, 2004
Grant date	Jun 3, 2008
Priority date	—
Expiry date	Apr 8, 2024

Classification

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

Abstract

A method and device for testing a fuel metering system. A control unit checks the injector contacts during the initialization phase prior to starting up the fuel metering system. For the test, the injectors are activated by the control unit, and the current values and/or voltage values are evaluated to detect errors. The control unit controls the fuel metering process during operation.

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