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Dive into the research topics where Hans-Peter Wirtz is active.

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Featured researches published by Hans-Peter Wirtz.


ATZ worldwide | 2004

The development method of the new CFT23 continuously variable transmission from ZF

Wolfgang de Loth; Johann Kirchhoffer; Hans-Peter Wirtz

ZF developed in cooperation with Ford a continuously variable automatic transmission, the CFT23 Ecotronic, which is used in the new Ford and Volvo-C platform derivatives. The Ford Focus C-MAX with a turbocharged 1.6 liter diesel engine is the first model from this product range to be produced. This report describes the development method and uses the results gained from the CFT23 development to describe this more specifically. This is supplemented by examples taken from the CFT23 Reliability Demonstration Matrix.


ATZ - Automobiltechnische Zeitschrift | 2004

Die Entwicklungsmethode des neuen stufenlosen Automatikgetriebes CFT23 von ZF

Wolfgang de Loth; Johann Kirchhoffer; Hans-Peter Wirtz

ZF entwickelte gemeinsam mit Ford das stufenlose Automatikgetriebe CFT23 Ecotronic, das in den neuen Ford- und Volvo-C-Platform- Derivaten zur Anwendung kommt. Erstes Modell im Rahmen dieser Palette ist der Ford Focus C-MAX mit einem turboaufgeladenen 1,6-l-Dieselmotor. Der vorliegende Bericht beschreibt die Entwicklungsmethode und konkretisiert sie anhand der erzielten Resultate aus der CFT23-Entwicklung. Zur Erganzung dienen Beispiele aus der CFT23-Reliability-Demonstration-Matrix.


Archive | 1990

Control system for a hydrokinetic torque converter lock-up clutch

Wolfgang Von Der Lippe; Sieghart Biederman; Winfried Schulz; Hans-Peter Wirtz; Johann Kirchhoffer


Archive | 1996

Torque converter having lock-up clutch

Hans-Peter Wirtz


Archive | 1996

Shift/regulating valve for controlling an hydrodynamic torque converter for an automatic transmission

Hans-Peter Wirtz


Archive | 1987

Hydrodynamic torque converter, especially for motor vehicle

Hans-Peter Wirtz


Archive | 1985

Multiple-speed, hydrokinetic transmission

Kurt Graef; Egon Axt; Hans-Peter Wirtz; Friedrich Lauscher; Werner Pötzsch; Peter Körfer; Paulus Sastrarahardja; Werner Croonen; Josef Serf


Archive | 2000

Pitot arrangement for continuously variable V-belt transmission

Hans-Peter Wirtz


Archive | 1995

Pulse width modulated solenoid valve for control of hydrodynamic torque converters

Hans-Peter Wirtz


Archive | 1985

HYDROKINETIC-MECHANICAL MULTISPEED AUTOMOTIVE TRANSMISSION CONTROLLABLE BY A HYDRAULIC VALVE SYSTEM

Kurt Graef; Josef Serf; Friedrich Lauscher; Egon Axt; Werner Pötzsch; Paulus Sastrarahardja; Peter Körfer; Werner Croonen; Hans-Peter Wirtz

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