Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 355
Item
Part Number
Description
1
—
TCM
2
—
Anti-lock Braking System (ABS)
3
—
Engine Control Module (ECM)
4
—
D/4 switch, (test switch), sports mode switch
5
—
CAN (including torque down switch)
6
—
Line pressure solenoid
7
—
Lock-up solenoid
8
—
Shift solenoid A
9
—
Shift solenoid B
10
—
Shift solenoid C
11
—
Low clutch timing solenoid
12
—
Reduction timing solenoid
13
—
2-4 brake timing solenoid
14
—
2-4 brake duty solenoid
15
—
Transmission Fluid Temperature (TFT) sensor
16
—
Control valve
17
—
Inhibitor switch
18
—
Select lever
19
—
Turbine Shaft Speed (TSS) sensor
20
—
Intermediate Shaft Speed (ISS) sensor
21
—
Vehicle Speed (VSS) sensor
22
—
Engine
23
—
Torque converter
24
—
Fluid pump
25
—
Input shaft
26
—
Four-speed geartrain
27
—
Clutch, brake, planetary gear etc
28
—
Output gear
29
—
Idler gear
30
—
Reduction geartrain
31
—
Parking gear
32
—
Final gear and differential
33
—
Transfer case
34
—
Automatic transmission assembly
The transmission gear changes, oil pressure and lock-up operation are all electronically controlled. The TCM located in the left hand A-pillar
receives electrical signals from sensors indicating vehicle speed and throttle opening. In response to these signals the TCM selects the
appropriate gear and regulates other related conditions.
Actual transmission control changes are made by actuators (solenoids) that respond to input signals received from the TCM. These
solenoids operate in response to electrical signals they regulate the control valve operation. The control valves cause changes in the fluid
flow passages. This results in pressure changes within the transmission.
Transmission Construction
A cross-sectional view of the automatic transmission.
Item
Part Number
Description
1
—
Torque converter
2
—
Input shaft
3
—
Output gear
4
—
Low clutch
5
—
Low and reverse brake
6
—
Rear planetary pinion gear
7
—
Low one-way clutch
8
—
Rear internal gear
9
—
Rear sun gear
10
—
Front sun gear
11
—
Front internal gear
12
—
Front planetary pinion gear
13
—
2-4 brake
14
—
Reverse clutch
15
—
High clutch
16
—
Reduction gear
17
—
Idler gear
18
—
Reduction internal gear
19
—
Reduction planetary pinion gear
20
—
Reduction sun gear
21
—
Reduction brake band
22
—
Reduction one-way clutch
23
—
Direct clutch
24
—
Parking gear
25
—
Parking pawl
26
—
Final gear
27
—
Differential gear
28
—
Driveshaft
Torque Converter
Item
Part Number
Description
1
—
Converter clutch and damper
2
—
Reactor
3
—
Turbine damper
4
—
Impeller
5
—
Fluid motion
6
—
Transmission input rotation
7
—
Input shaft
8
—
Engine rotation
Torque Converter
The torque converter delivers the engine drive power to the transmission. W hen the lock-up clutch is released, the power delivery is
depended on automatic transmission fluid (ATF). When the lock-up clutch is engaged the engine power is delivered to the transmission
through the lock-up clutch.
The lock-up clutch is controlled electronically and operates in 4th and 5th gears.
A symmetrical element 1-step 2-phase torque converter is used with JF506E automatic transmission. The term "1-step" refers to the single
turbine and runner assembly and "2-step" refers to the turbine runner speed relative to the pump impeller speed. When the turbine runner
speed is lower than the pump impeller speed, the mechanism operates as a simple torque converter. W hen the turbine runner speed is
higher than pump impeller speed, the mechanism acts as a fluid coupling.
The torque converter transmits and multiplies torque. The torque converter is a four-element device:
impeller assembly
turbine and damper assembly
reactor assembly
clutch
The standard torque converter components operate as follows:
Rotation of the converter housing and impeller set the fluid in motion.
The turbine reacts to the fluid motion from the impeller, transferring rotation to the geartrain through the input shaft.
The reactor redirects fluid going back into the impeller, allowing for torque multiplication.
The clutch and damper assembly dampens powertrain torsional vibration and provides a direct mechanical connection for improved
efficiency.
Power is transmitted from the torque converter to the planetary gearsets and other components through the input shaft.
Oil Pump
Item
Part Number
Description
1
—
Oil seal
2
—
O-ring
3
—
Oil pump housing
4
—
Inner rotor
5
—
Outer rotor
6
—
Oil pump cover
7
—
Seal ring
8
—
Bolts
A trochoid oil pump is used with JF506E automatic transmission. The trochoid oil pump has the advantage of very low power loss.
Item
Part Number
Description
1
—
Outer rotor
2
—
Inner rotor
3
—
Suction port
4
—
Discharge port
The oil pump is driven by the engine. The inner rotor connects to the torque converter sleeve.
Geartrain
Power is transmitted from the torque converter to the planetary gearsets through the input shaft. Bands and clutches are used to hold and
drive certain combinations of gearsets. This results in five forward ratios and one reverse ratio, which are transmitted to the output shaft
and differential.
Gear Ratio
1st
3.801 to 1
2nd
2.131 to 1
3rd
1.364 to 1
4th
0.935 to 1
5th
0.685 to 1
Reverse
2.970 to 1
Planetary Gears
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст