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Dive into the research topics where Christoph Luttermann is active.

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Featured researches published by Christoph Luttermann.


International Journal of Engine Research | 2014

A quasi-dimensional model of turbulence and global charge motion for spark ignition engines with fully variable valvetrains

Sebastian Grasreiner; Jens Neumann; Christoph Luttermann; Michael Wensing; C. Hasse

In this article, a new in-cylinder turbulence modeling approach aims at the improvement of quasi-dimensional simulations for modern spark ignition engines with fully variable valvetrains. Within the derived quasi-dimensional turbulence model, the turbulent production term can physically react on a change of engine operation (e.g. intake valve lift, intake valve timing, engine speed and boost pressure). Moreover, the approach offers access to detailed charge motion quantities for the first time in quasi-dimensional calculations. Hence, it is able to satisfy qualitative and quantitative turbulence descriptions within the entire operating range of the engine.


MTZ - Motortechnische Zeitschrift | 2005

Weiterentwicklung der vollvariablen Ventilsteuerung

Benedikt Dr. Klaus; Gottfried Drexler; Torsten Eder; Markus Eisenkölbl; Christoph Luttermann; Michael Schleusener

Mit der Markteinfuhrung des neuen BMW-Sechszylinder-Reihenmotors im Jahr 2004 wurde ein Meilenstein hinsichtlich „effizienter Dynamik“ geschaffen. Einen entscheidenden Beitrag hierzu lieferte die Valvetronic, die einer unfassenden Weiterentwicklung unterzogen wurde. Neben Mechanik und Grundkonstruktion wurden die elektronischen Komponenten, die steuerungstechnischen Elemente und das Brennverfahren grundlegend uberarbeitet. Ein fachubergreifender Systemansatz stand im Mittelpunkt dieser hier vorgestellten Innovation.


MTZ worldwide | 2005

Further development of BMW’s fully-variable valve control system valvetronic

Klaus Benedikt; Gottfried Drexler; Torsten Eder; Markus Eisenkoelbl; Christoph Luttermann; Michael Schleusener

The launch of the new BMW six-cylinder in-line engine in 2004 was a milestone in “efficient dynamics”. This was largely due to the new, further developed Valvetronic system. In addition to the mechanics and the basic design, the electronic components, the control elements and the combustion process also underwent fundamental modification. This article describes the innovative system in detail and shows how a multi-disciplinary approach was used in its development.


MTZ worldwide | 2007

High-precision injection in combination with the new BMW twin-turbo petrol engine

Werner Mährle; Christoph Luttermann; Michael Krauss; Norbert Klauer

The design highlights of the new engine that went into series production in mid-2006 with the 335i Coupe have already been described in the February issue of the MTZ. Continuing with this report, this article deals with the functional aspects of piezo-fuel injection technology used for the first time by BMW in connection with turbocharging which BMW is again reintroducing in petrol engine construction after an absence of more than 20 years.


MTZ - Motortechnische Zeitschrift | 2007

High Precision Injection in Verbindung mit Aufladung am neuen BMW Twin-Turbo-Ottomotor

Werner Mährle; Michael Krauss; Christoph Luttermann; Norbert Klauer

In der Februar–Ausgabe der MTZ wurden bereits die konstruktiven Highlights des neuen BMW Twin-Turbo-Ottomotors beschrieben, der Mitte 2006 mit dem 335i Coupe in Serie ging. Als Fortsetzung dieses Berichts befasst sich dieser Artikel mit den funktionalen Aspekten der von BMW erstmals eingesetzten Piezo-Benzineinspritztechnik in Verbindung mit Abgasturboaufladung, die bei BMW im Ottomotorenbau zum ersten Mal seit uber 20 Jahren wieder zum Einsatz kommt.


SAE World Congress & Exhibition | 2007

BMW High Precision Fuel Injectionin Conjunction with Twin-Turbo Technology: a Combination for Maximum Dynamic and High Fuel Efficiency

Christoph Luttermann; Werner Mährle


SAE 2006 World Congress & Exhibition | 2006

Enhanced VALVETRONIC Technology for Meeting SULEV Emission Requirements

Christoph Luttermann; Erik Schünemann; Norbert Klauer


Archive | 2002

Method for determining the exhaust gas temperature in the exhaust system of a combustion engine employs a model based on part- models with at least the engine represented as a neuronal network

Heiko Konrad; Christoph Luttermann; Franz Perschl; Alexander Mitterer


Archive | 2002

Adaptive Vorsteuerung des Zündzeitpunkts für Brennkraftmaschinen mit Klopfregelung

Christoph Luttermann; Franz Perschl; Gerd Kraemer; Heiko Konrad


Archive | 2002

Procedure for adaptive piloting of ignition point of internal combustion engine with knock control entails running learning algorithm of neural network parallel to ignition angle calculation by using neural network

Christoph Luttermann; Franz Perschl; Gerd Kraemer; Heiko Konrad

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