Robert Boschgmbh

Lars Empacher

Rene Zieher

Andreas Hempel

Traugott Degler

Stephan Olbrich

Michael Schenk

Wolfgang Beuer

Hans-Martin Jaeger

Myriam Howey

Derek Coates

A fuel injection system for an internal combustion engine in which pressurized fuel is made available in a pressure accumulator and a fuel pressure prevailing in the pressure accumulator is ascertained with the aid of a pressure sensor and in which the fuel enters a combustion chamber of the internal combustion engine through at least one fuel injection device. A slope of a curve, which links a pressure difference in the pressure accumulator during a fuel injection to an injected fuel quantity, is ascertained and the fuel pressure prevailing in the pressure accumulator is inferred from the slope.

Method for operating a fuel injection system

In a method and a device for testing for leakage in a fuel injection valve of an internal combustion engine, a temperature quantity is determined that characterizes the temperature of at least a part of the fuel injection valve. On the basis of this temperature quantity, the presence of a leak is inferred.

Method and device for checking for leakage in a fuel injection valve of an internal combustion engine

A device and a method for determining a fuel pressure and/or an injected amount of fuel are described. A fuel injection unit meters the fuel to an internal combustion engine as a function of a first and a second trigger signal. The first trigger signal controls the start and end of fuel metering, and the second trigger signal controls the pressure buildup. The variation of pressure is determined on the basis of at least the first trigger signal and the second trigger signal.

Method and device for controlling fuel metering into an internal combustion engine

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Kornwestheim, Germany

Lars Empacher