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Featured researches published by Benno Köppl.


power electronics specialists conference | 2008

Optimal PWM method for electric and electro-hydraulic power steering applications

Dusan Graovac; Benno Köppl; Michael Scheffer; Andreas Kiep; Marco Pürschel

This paper presents a methodology for choosing the optimal PWM method for the 3-phase automotive drives applications for electric and electro-hydraulic power steering. It shows how some of the automotive specific requirements transpose to PWM requirements. A system overview with motor and control principles has been presented, followed by the method of power loss calculations based on datasheet parameters and, after that, an overview of the PWM Methods is given. These Methods are compared based on: power loss minimisation, usage of the battery voltage, quality of output current and noise emission minimisation.


ATZelektronik worldwide | 2008

Reducing CO2 output through demand-based performance control

Alfons Graf; Benno Köppl

Reducing the quantity of CO2 emitted by automobiles is becoming an increasingly important concern — one that will cause automobile development and manufacturing costs to rise. High CO2 emissions will also create additional costs for car buyers, as policymakers begin taxing CO2 and auto makers pass on to consumers the costs of CO2 trading certificates and CO2 penalties. In this article, Infineon shows how a realistic and commercially viable reduction in CO2 output of around 20g per kilometer can be achieved by incorporating demand-based control into a small number of automotive applications.


ATZelektronik worldwide | 2008

CO2-Reduktion durch bedarfsgerechte Leistungssteuerung

Alfons Graf; Benno Köppl

CO2-Reduktion bei Kraftfahrzeugen spielt eine immer wichtigere Rolle und wird zu einem Anstieg der Herstellungs- und Entwicklungskosten fuhren. Andererseits fuhrt ein erhohter CO2-Ausstos zu Mehrkosten beim Kfz-Kaufer, etwa durch CO2-Besteuerung, aber auch zu Mehrkosten beim Fahrzeughersteller, beispielsweise durch CO2-Zertifikatehandel oder Ausgleichszahlungen. In diesem Beitrag zeigt Infineon, dass mit Hilfe einiger weniger, bedarfsgerecht gesteuerter Applikationen eine realistische und kommerzielle CO2-Reduktion von rund 20 g CO2/km zu erreichen ist.


Archive | 2011

Schaltungsanordnung mit einem Mehrstufenwandler

Dusan Graovac; Benno Köppl; Andreas Pechlaner


SAE World Congress & Exhibition | 2007

Performance and Technology Comparison of GMR Versus Commonly used Angle Sensor Principles for Automotive Applications

Wolfgang Granig; Stephan Hartmann; Benno Köppl


Archive | 2005

Electric motor controlling device for e.g. motor vehicle, has monitoring unit outputting error signals during malfunction of sensor, and safety unit producing alternative motor control signals for controlling motor in quiescent state

Benno Köppl; Georg Lipperer


Archive | 2009

Verpolungsschutz für Mosfets

Frank Auer; Karl-Dieter Hein; Benno Köppl


Archive | 2013

Circuitry comprising a half bridge and circuitry for driving a high-side switch

Karl-Josef Martin; Markus Zannoth; Karl-Dieter Hein; Matthias Bogus; Mathias Von Borcke; Benno Köppl


Archive | 2013

Schaltungsanordnung umfassend eine Halbbrücke und Schaltungsanordnung zum Ansteuern eines High-Side-Schalters A circuit arrangement comprising a half-bridge and circuit for driving a high-side switch

Karl-Josef Martin; Markus Zannoth; Karl-Dieter Hein; Matthias Bogus; Mathias Von Borcke; Benno Köppl


Archive | 2012

Verfahren zur Ansteuerung der Schalttransistoren eines Gleichrichters

Michael Scheffer; Benno Köppl; Gerhard Koelle

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