Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr

Ykk Corporation

Ulf Lezius

Matthias Schultalbers

Olaf Magnor

Wolfram Gottschalk

Samuel Trebesius

Michael Schnaubelt

Malte Koeller

Olaf Dr-Ing Magnor

A method for recognizing irregular combustion in an internal combustion engine includes supplying fuel directly to a combustion chamber of a cylinder of the internal combustion engine using an injector. The injector is connected to a fuel supply line that includes a pressure sensor configured to measure pressure in the fuel supply line. The pressure in the fuel supply line is measured during the supply of fuel into the combustion chamber. It is then ascertaining whether irregular combustion is occurring based on the measured pressure in the fuel supply line.

Method for recognising irregular combustion processes in an internal combustion engine

A method for estimating the cylinder interior pressure of an internal combustion engine from a cylinder pressure model having at least the input variables load, speed of rotation, and crank angle (P), which forms the cylinder interior pressure (P) to be determined, corrected by a pressure correction value (&#x394;P). The pressure correction value (&#x394;P) is determined from an observation of the alternating moments at the crankshaft. The modeled value of the cylinder interior pressure from the pressure model is obtained as a pre-control value, and corrected with a correction value formed from the measured value of the non-uniformity of rotation.

Method for determining the cylinder interior pressure of an internal combustion engine

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Gifhorn, Germany

Ulf Lezius