Robert Boschgmbh

Robert Bosch Gmbh

Jochen Friedmann

Daniel Strack

Thomas Naeger

Helmut Bassler

Markus Karl Vogel

Gunter Freitag

Karl-Martin Kutteruf

Joerg Staib

Joachim Goeser

Dirk Freundt

Edgar Holl

Wolfgang Henner

Bertram Rensch

Christian Boie

A device and a method for testing fuel injectors, in particular, of the piezo type. The device includes at least one, in particular, bidirectional interface for connecting an operator control unit, at least one outlet for connecting at least one fuel injector, at least one integrated circuit, as well as a microcontroller for controlling the integrated circuit, the integrated circuit and the microcontroller cooperating in a way that allows the fuel injector to be tested as a function of the type and/or subtype thereof, including at least the piezo type having the subtypes active high and active low.

Device for testing fuel injectors, and corresponding method

A method for selecting a procedure for determining the injection time of individual injection operations of a fuel injector, which may be supplied with pressurized fuel via a feed line, includes activating the fuel injector using various known activation durations in the vicinity of a predefined operating point of the fuel injector; detecting the pressure curve over time in the feed line for a number of injection operations; evaluating the detected pressure curves over time using at least two different procedures for determining the injection time from the particular pressure curve; determining the correlation between the determined injection times and the particular activation period; selecting the procedure with the highest correlation.

Method and device for testing a fuel injector

Fuel injection device for internal combustion engines

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Kirchheim, Germany

Jochen Friedmann