17
Transmissions
Lepelletier Gear Set
Simple Planetary
Gear Set
Lepelletier gear set concept
The six automatic transmission gears are
shifted by a Ravigneaux planetary gear set
with a series-connected simple planetary
gear set.
This arrangement is known as the
Lepelletier gear set concept.
SSP270/221a
SSP270/250
Mechatronics
Control of the six-speed automatic
transmission is effected by Mechatronics.
This is a combination of an electronic
Transmission Control Module J217
and a hydraulic control valve assembly
switching device.
Using Mechatronics, gear changes can be
controlled more precisely than before. This
provides drivers with an optimized shifting
quality and an increased level of driving
comfort. Using the incoming sensor
signals, the Transmission Control Module
J217 recognizes the current operating state
of the transmission and driver input,
reacting to these with adjusted shift points.
Driver input ranging from an extremely
sporty to a very economical driving
style are recognized and taken into
consideration. Mechatronics components
are located on the control valve assembly
in the transmission.
Long Planet Gear
Planet Carrier
Short Planet Gear
Internal Gear 2
Sun Gear 3
Sun Gear 1
Internal Gear 1
Turbine Shaft
Planet Gear
SSP270/221b
Sun Gear 2
Hydraulic Control
Valve Assembly
Switching Device
Multi-Function
Transmission
Range Switch
F125
Transmission
Control Module
J217
Ravigneaux Planetary
Gear Set
Summary of Contents for PHAETON -
Page 1: ...Self Study Program Course Number 891303 The Phaeton ...
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Page 79: ...75 Notes ...
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Page 83: ...Volkswagen of America Inc 3800 Hamlin Road Auburn Hills MI 48326 Printed in U S A August 2003 ...