Volkswagen Ag

Jens Jeschke

Thomas Lang

Hans-Georg Nitzke

Axel Groenendijk

Michael Mazur

Werner Aberle

Jan Piewek

Jörn Müller

Achim Freitag

Dieter Mannigel

Lothar Nee

Uwe Scher

Jörg Larink

Jürgen Wendt

Johannes Forst

Andreas Wagner

Holger Blume

Thorsten Rebohl

Jens Drueckhammer

Frank Wildhagen

Andreas Udo Sass

Nico Gerhardt

Matthias Dockhorn

Jürgen Gloger

Technologies and techniques for transmitting a plurality of signals. A plurality of signals are picked up in a time window. The signals from the plurality of signals that have a similar signal form in the time window may be grouped into a respective group. A signal of the respective group may be determined or designated as representative of the group. Transmission data may be transmitted that contains, for each group, the representative of the respective group and a respective portion of transformation information for each signal contained in the respective group.

Method for transmitting a plurality of signals and method for receiving a plurality of signals

A method for determining a combination of an actual intake camshaft phase position of an intake camshaft and an actual exhaust camshaft phase position of an exhaust camshaft of a production internal combustion engine having at least one cylinder, wherein the method is performed in operation of the production internal combustion engine and the relevant actual phase position of the camshafts is determined in relation to an operating point of the production internal combustion engine.

Method for determining a camshaft position in an internal combustion engine

A method for adaptation of a detected camshaft position of a camshaft in an internal combustion engine with: Detection of an ACTUAL gas signal in a gas space that is associated with the camshaft and is associated with a detected camshaft position; Processing of the gas signal to produce an ACTUAL gas criterion; Modeling of multiple simulated gas criteria, each of which is associated with a target camshaft position; Determination of a simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of an ACTUAL camshaft position that corresponds to the simulated gas criterion with the least deviation from the ACTUAL gas criterion; Determination of a camshaft position correction value from the difference between the ACTUAL camshaft position determined and the detected camshaft position; Determination of corrected camshaft positions by correcting the detected camshaft positions with the camshaft position correction value.

Method for adaptation of a detected camshaft position, control unit for carrying out the method, internal combustion engine, and vehicle

In a method for determining a pressure at the output of an exhaust gas system of an internal combustion engine system of a vehicle, a mass flow through the internal combustion engine system and an ambient pressure at a fresh air supply of the internal combustion engine system are detected. The pressure at the output of the exhaust gas system is determined as a function of the mass flow, the ambient pressure and throttling of the mass flow through the internal combustion engine system.

Method for determining a pressure at the output of an exhaust gas system

An internal combustion engine has a high-pressure exhaust-gas recirculation line and a low-pressure exhaust-gas recirculation line with a low-pressure exhaust-gas recirculation valve. The low-pressure exhaust-gas recirculation line branches off from the exhaust-gas system downstream of a turbine of an exhaust-gas turbocharger and opens into a fresh-air system upstream of a compressor of the exhaust-gas turbocharger. An exhaust-gas flap is disposed in the exhaust-gas system downstream from where the low-pressure exhaust-gas recirculation line branches off from the exhaust-gas system. At least one pressure sensor is disposed in the low-pressure exhaust-gas recirculation line and configured such that the at least one pressure sensor determines a pressure difference in the low-pressure exhaust-gas recirculation line between a point upstream of the low-pressure exhaust-gas recirculation valve and a point downstream of the low-pressure exhaust-gas recirculation valve. A method for operating an internal combustion engine is also provided.

Internal combustion engine with an exhaust-gas recirculation and method for operating an internal combustion engine

A method for diagnosing an engine control unit () conducts an analysis as to whether the signal values from the cylinder pressure sensors () are faulty based on at least one characteristic value which is derived from an evaluation of signal values from the cylinder pressure sensors () of the cylinders () in a combustion engine (). In addition to this is described the engine control unit () designed to execute the method. Also hereby disclosed is a method which, based on symmetrical aspects, determines a crankshaft angle (phipCylMaxTDC) for a cylinder pressure maximum during push mode operation of the combustion engine ().

Method for diagnosing an engine control unit and corresponding engine control unit

An engine management system uses physically based models to determine the composition and mass of the fresh air/exhaust gas mixture suctioned by an internal combustion engine. The models are closely coupled to each other in a partial manner and are used to simulate the filling of the combustion chamber with the suctioned fresh air/waste gas mixture in order to simulate the flow of the mass of re-circulating exhaust gas, the behavior of the exhaust gas manifold upstream and downstream from a turbine, the storage behavior of the intake manifold, and the behavior of the intake pipe or inlet manifold whereby the fresh air/exhaust gas mixture is fed to the combustion engine from a corresponding mixing point where the suctioned fresh air is mixed with the exhaust gas re-circulated via the exhaust gas re-circulation line. As a result, a plurality of additional state variables can be determined without additional sensors.

Method for determination of composition of the gas mixture in a combustion chamber of an internal combustion engine with exhaust gas recirculation and correspondingly configured control system for an internal combustion engine

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Braunschweig, Germany

Jens Jeschke