Robert Boschgmbh

Jochen Walther

Stefan Kieferle

Oliver Becker

Oliver Schulz

Dorothee Sommer

Christoph Weizenauer

Markus Degn

Gernot Payer

Sven Voelter

Susanne Spindler

Norbert Schmidt

The invention relates to a fuel injection system for a multi-cylinder internal combustion engine having a first high-pressure accumulator and having a second high-pressure accumulator. The fuel injection system also has a high-pressure pump, wherein the first and the second high-pressure accumulators have a number of ports for injector supply lines corresponding to the number of cylinders of the internal combustion engine. A damping volume for damping pressure pulsations between the high-pressure accumulators and the high-pressure pump is integrated into one of the high-pressure accumulators.

High-pressure accumulator body with integrated distributor block

A device and a method for determining pressure fluctuations in a fuel supply system provide two signal filters to enable determining as much information about pressure fluctuations as possible with minimal sensor use. A sensor signal which is characteristic of a pressure in the area of a fuel injector is filtered using the two filters, which have filter characteristics that differ from one another.

Device and method for determining pressure fluctuations in a fuel supply system

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Stuttgart, Germany

Jochen Walther