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, Volume 105, Issue 10, pp 2–5 | Cite as

7-speed automatic transmission from Mercedes-Benz

  • Jürgen Greiner
  • Günter Indlekofer
  • Harald Nauerz
  • Jens Dorfschmid
  • Tobias Gödecke
  • Christoph Dörr
Cover Story 7-Speed Automatic Transmission
  • 67 Downloads

Abstract

The world’s first 7-speed automatic transmission, the W7A700 from Mercedes-Benz, is called 7G-Tronic. In September 2003, the Mercedes Car Group set another milestone in the field of transmissions by introducing the fifth generation of automatic transmissions developed and manufactured in-house since 1960. The new automatic transmission features in the S, SL, CL and E-Classes with V8 gasoline engines. Deduced from the demands of the requirement specifications, the 5-speed automatic transmission was decisively improved; the result is a clear increase in spontaneity, agility, fuel economy, and driving comfort. And because of the harmony between the vehicle and its powertrain, excellent results in the areas of performance, reduced emissions, comfort, and acoustics are obtained.

Keywords

Planetary Gear Automatic Transmission Ring Gear Torque Converter Installation Space 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Das neue Siebengang-Automatikgetriebe von Mercedes-Benz

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References

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    Rösch, R.; Zaiser, W.; Kürschner, M.: The new automatic transmission W5A330/580 for Mercedes-Benz passenger cars — design and performance of the mechanical part of the transmission. ATZ 97 (1995) Nr. 9, S. 536–545Google Scholar
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    Greiner, J.; Riedl, K.; Gansloser, P.: Status and future trends of Automatic transmissions with planetary gear sets at Mercedes-Benz VDI-Berichte 1460, 1999Google Scholar
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    Rösch, R.; Wagner, G.: Electrohydraulic control module and external shift unit of the automatic transmission W5A330/580. ATZ 97 (1995) Nr. 10, S. 698–706Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2003

Authors and Affiliations

  • Jürgen Greiner
  • Günter Indlekofer
  • Harald Nauerz
  • Jens Dorfschmid
  • Tobias Gödecke
  • Christoph Dörr

There are no affiliations available

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