POWER FLOW OPERATION

id051700111300

Component description

Component

Function

Forward clutch
• Transmits the input torque from the turbine shaft to the front sun gear.
• Operates in the forward range of the first, second, or third gear position.
3-4 clutch
• Transmits the input torque from the turbine shaft to the rear planetary carrier.
• Operates in the forward range of the third or fourth gear position.
Reverse clutch
• Transmits the input torque from the turbine shaft to the rear sun gear.
• Operates when the vehicle is backing up.
2-4 brake band
• Locks rotation of the reverse drum and fixes the rear sun gear.
• Operates in the second or fourth gear position.
Low and reverse brake
• Fixes the rotation of the front internal gear.
• Operates when the vehicle is backing up or in the first gear position (L range HOLD and M range).
One-way clutch
• Locks the counterclockwise rotation of the front internal gear in the first gear position.
Planetary gear
• The planetary gear functions as a transmission due to the engagement/ disengagement of clutches and/or brakes, converts the transmitted driving force of the turbine shaft and transmits it to the output gear.

Note
• All directions of rotation are viewed from the torque converter.

1GR (D range)

.

1
Input
2
Forward clutch
3
One-way clutch
4
Front planetary carrier
5
Front sun gear
6
Front pinion gear
7
Front internal gear
8
Primary gear
9
Secondary gear
10
Output gear
11
Ring gear (Differential)
12
Output

1GR (4AT: L range HOLD, Sport AT: M range)

.

1
Input
2
Forward clutch
3
One-way clutch
4
Low and reverse brake
5
Front planetary carrier
6
Front sun gear
7
Front pinion gear
8
Front internal gear
9
Primary gear
10
Secondary gear
11
Output gear
12
Ring gear (Differential)
13
Output

2GR

.

1
Input
2
Forward clutch
3
2-4 brake band
4
Rear sun gear
5
Rear pinion gear
6
Rear planetary carrier
7
Rear internal gear
8
Front planetary carrier
9
Front sun gear
10
Front pinion gear
11
Front internal gear
12
Primary gear
13
Secondary gear
14
Output gear
15
Ring gear (Differential)
16
Output

3GR

.

1
Input
2
Forward clutch
3
3-4 clutch
4
Rear sun gear
5
Rear pinion gear
6
Rear planetary carrier
7
Rear internal gear
8
Front sun gear
9
Front pinion gear
10
Front internal gear
11
Primary gear
12
Secondary gear
13
Output gear
14
Ring gear (Differential)
15
Output

4GR

.

1
Input
2
2-4 brake band
3
3-4 clutch
4
Rear sun gear
5
Rear pinion gear
6
Rear internal gear
7
Front planetary carrier
8
Primary gear
9
Secondary gear
10
Output gear
11
Ring gear (Differential)
12
Output

R position

.

1
Input
2
Low and reverse brake
3
Reverse clutch
4
Rear sun gear
5
Rear pinion gear
6
Rear internal gear
7
Front planetary carrier
8
Primary gear
9
Secondary gear
10
Output gear
11
Ring gear (Differential)
12
Output