Infiniti M45 (Y34). Manual — part 34
A/T CONTROL SYSTEM
AT-21
D
E
F
G
H
I
J
K
L
M
A
B
AT
CLUTCH AND BAND CHART
SCIA1524E
AT-22
A/T CONTROL SYSTEM
POWER TRANSMISSION
“N” Position
Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not trans-
mitted to the output shaft.
“P” Position
●
The same as for the “N” position, both the forward brake and the reverse brake are released, so torque
from the input shaft drive is not transmitted to the output shaft.
●
The parking pole linked with the select lever meshes with the parking gear and fastens the output shaft
mechanically.
1.
Front brake
2.
Input clutch
3.
Direct clutch
4.
High and low reverse clutch
5.
Reverse brake
6.
Forward brake
7.
Low coast brake
8.
1st one-way clutch
9.
Forward one-way clutch
10. 3rd one-way clutch
11.
Front sun gear
12. Input shaft
13. Mid internal gear
14.
Front internal gear
15. Rear carrier
16. Rear sun gear
17.
Mid sun gear
18. Front carrier
19. Mid carrier
20.
Rear internal gear
21. Intermediate shaft
22. Output shaft
23.
Parking gear
24. Parking pawl
SCIA3986J
A/T CONTROL SYSTEM
AT-23
D
E
F
G
H
I
J
K
L
M
A
B
AT
“D”, “M2”, “M3”, “M4” and “M5” Positions 1st Gear
●
The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.
●
The 1st one-way clutch regulates reverse rotation of the rear sun gear.
●
The 3rd one-way clutch regulates reverse rotation of the front sun gear.
●
During deceleration, the mid sun gear turns forward, so the forward one-way clutch idles and the engine
brake is not activated.
1.
Front brake
2.
Input clutch
3.
Direct clutch
4.
High and low reverse clutch
5.
Reverse brake
6.
Forward brake
7.
Low coast brake
8.
1st one-way clutch
9.
Forward one-way clutch
10. 3rd one-way clutch
11.
Front sun gear
12. Input shaft
13. Mid internal gear
14.
Front internal gear
15. Rear carrier
16. Rear sun gear
17.
Mid sun gear
18. Front carrier
19. Mid carrier
20.
Rear internal gear
21. Intermediate shaft
22. Output shaft
23.
Parking gear
24. Parking pawl
SCIA3987E
AT-24
A/T CONTROL SYSTEM
“M1” Position 1st Gear
●
The front brake fastens the front sun gear.
●
The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.
●
High and low reverse clutch connects the rear sun gear and the mid sun gear.
●
The low coast brake fastens the mid sun gear.
●
During deceleration, the low coast brake regulates forward rotation of the mid sun gear and the engine
brake functions.
1.
Front brake
2.
Input clutch
3.
Direct clutch
4.
High and low reverse clutch
5.
Reverse brake
6.
Forward brake
7.
Low coast brake
8.
1st one-way clutch
9.
Forward one-way clutch
10. 3rd one-way clutch
11.
Front sun gear
12. Input shaft
13. Mid internal gear
14.
Front internal gear
15. Rear carrier
16. Rear sun gear
17.
Mid sun gear
18. Front carrier
19. Mid carrier
20.
Rear internal gear
21. Intermediate shaft
22. Output shaft
23.
Parking gear
24. Parking pawl
SCIA3988E
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