JAGUAR XFR 2010 1.G Workshop Manual

Published: 11-May-2011
Automatic Transmission/Transaxle - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol - Transmission Description - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired; B = K bus; D = High speed CAN (controller area network) bus; O = LIN (local interconnect
network) bus



Item Description 1 Battery 2 BJB (battery junction box) (250 A megafuse) 3 EJB (engine junction box) 4 CJB (central junction box)

TCM (transmission control module) 6 Diagnostic socket 7 Instrument cluster 8 JaguarDrive selector 9 Clockspring 10 Steering wheel audio switches 11 Downshift paddle switch 12 Upshift paddle switch 13 ECM (engine control module)


POWER FLOWS System Operation

Operation of the transmission is controlled by the TCM (transmission control module), which electrically activates various
solenoids to control the transmission gear selection. The sequence of solenoid activation is based on programmed information
in the TCM memory and physical transmission operating conditions such as vehicle speed, throttle position, engine load and JaguarDrive selector position.



Item Description 1 Torque input from engine 2 Torque converter lock-up clutch 3 Single web planetary gear carrier 4 Single web planetary gears 5 Single web sunwheel 1 6 Double web sunwheel 2 7 Double web planetary gears - long 8 Double web planetary gear carrier 9 Double web planetary gears - short 10 Double web sunwheel 3 11 Torque output from transmission A Multiplate clutch B Multiplate clutch C Multiplate brake D Multiplate brake E Multiplate clutch Engine torque is transferred, via operation of single or combinations of clutches to the 2 planetary gear trains. Both gear trains
are controlled by reactionary inputs from brake clutches to produce the 6 forward gears and 1 reverse gear. The ratios are as
follows: www.JagDocs.com

Ration 4.171 2.340 1.521 1.143 0.867 0.691 3.403 Shift Elements



Item Description 1 Turbine shaft 2 Stator shaft 3 Single web planetary gear train 4 Ring gear 1 5 Clutch A 6 Clutch B 7 Clutch E 8 Brake clutch C 9 Fixed connection to transmission housing 10 Shaft key 11 Brake clutch D 12 Double web planetary gear train 13 Planetary gears - long 14 Ring gear 2 15 Sunwheel 2 16 Sunwheel 3 17 Double web planetary gear carrier 18 Planetary gears - short 19 Single web planetary gear carrier 20 Sunwheel 1 The shift elements are three rotating multiplate clutches (A, B and E) and two fixed multiplate brakes (C and D). All shifts
from 1st to 6th gears are power-on overlapping shifts. Overlapping shifts can be described as one of the clutches continuing to
transmit drive at a lower main pressure until the next required clutch is able to accept the input torque.

The shift elements, clutches and brakes are actuated hydraulically. Fluid pressure is applied to the required clutch and/or brake,
pressing the plates together and allowing drive to be transmitted through the plates. The purpose of the shift elements
is to perform power-on shifts with no interruption to traction and smooth transition between gear ratios.

The JaguarDrive selector and the selector valve spool are in the 'D' position. Engine torque is transmitted from the torque
converter turbine shaft to the ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.

Ring gear 1 drives the planetary gears which rotate around sunwheel 1. This drives the planetary gear carrier 1 and also the
outer plate carrier of clutch 'A' and the inner plate carrier of clutch 'B'.

When clutch 'A' is engaged, sunwheel 3 in the double web planetary gear train is driven and meshes with the short planetary
gears.

The double web planetary gear train is locked against the transmission housing by brake 'D'. This allows ring gear 2 (output
shaft) to be driven in the same direction as the engine via the long planetary gears.


NOTE: Refer to 'Shift Elements' illustration for key

Power Flow 1st Gear

Power Flow 2nd Gear



The JaguarDrive selector and the selector spool valve are in the 'D' position. Engine torque is transmitted from the torque
converter turbine shaft to the ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.

Ring gear 1 drives the planetary gears which rotate around sunwheel 1. This drives the planetary gear carrier 1 and also the
outer plate carrier of clutch 'A' and the inner plate carrier of clutch 'B'.

When clutch 'A' is engaged, sunwheel 3 in the double web planetary gear train is driven and meshes with the short planetary
gears.

Sunwheel 2 is locked to the transmission housing by brake clutch 'C'. The long planetary gears, which are also meshed with the
short planetary gears, roll around the fixed sunwheel 2 and transmit drive to the double web planetary gear train carrier and
ring gear 2 in the direction of engine rotation.


NOTE: Refer to 'Shift Elements' illustration for key

NOTE: Refer to 'Shift Elements' illustration for key



Power Flow 4th Gear



The JaguarDrive selector and the selector spool valve are in the 'D' position. Engine torque is transmitted from the torque
converter turbine shaft to ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.

Ring gear 1 drives the planetary gears which rotate around sunwheel 1. This drives the planetary gear carrier 1 and also the
outer plate carrier of clutch 'A' and the inner plate carrier of clutch 'B'.

When clutch 'A' is engaged, sunwheel 3 in the double web planetary gear train is driven and meshes with the short planetary
gears.
The double web planetary gear carrier is driven via clutch 'E' which is engaged. The long planetary gears, which are also www.JagDocs.com

meshed with the short planetary gears and the double web planetary gear carrier, drive ring gear 2 in the direction of engine
rotation.


NOTE: Refer to 'Shift Elements' illustration for key



Power Flow 5th Gear



The JaguarDrive selector and the selector spool valve are in the 'D' position. Engine torque is transmitted from the torque
converter turbine shaft to ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.

Ring gear 1 drives the planetary gears which rotate around sunwheel 1. This drives the planetary gear carrier 1 and also the
outer plate carrier of clutch 'A' and the inner plate carrier of clutch 'B'.
When clutch 'A' is engaged, sunwheel 3 in the double web planetary gear train is driven and meshes with the short planetary

gears.

The long planetary gears, which are also meshed with the short planetary gears and the double web planetary gear carrier,
drive ring gear 2 in the direction of engine rotation.


NOTE: Refer to 'Shift Elements' illustration for key



Power Flow 6th Gear



The JaguarDrive selector and the selector spool valve are in the 'D' position. Engine torque is transmitted from the torque
converter turbine shaft to ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.
Clutches 'A' and 'B' are released, removing the effect of the single web planetary gear train.

Clutch brake 'C' is applied which locks sunwheel 2 to the transmission housing.

Clutch 'E' is engaged and drives the double web planetary gear carrier. This causes the long planetary gears to rotate around
the fixed sunwheel 2 and transmit drive to ring gear 2 which is driven in the direction of engine rotation.


NOTE: Refer to 'Shift Elements' illustration for key



Power Flow Reverse Gear



The JaguarDrive selector and the selector spool valve are in the 'R' position. Engine torque is transmitted from the torque
converter turbine shaft to ring gear 1 of the single web planetary gear train and the outer plate carrier of clutch 'E'.

Ring gear 1 drives the planetary gears of the single web planetary gear train which rotate around the fixed sunwheel 1. This
transmits the drive to the single web planetary gear carrier, the outer plate carrier of clutch 'A' and the inner plate carrier of