Power Flows
Operation of the transmission is controlled by the TCM, 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:
| GEAR | 1ST | 2ND | 3RD | 4TH | 5TH | 6TH | REVERSE |
|---|---|---|---|---|---|---|---|
| Ration | 4.171 | 2.340 | 1.521 | 1.143 | 0.867 | 0.691 | 3.403 |