Infiniti QX56 (Z62). Manual - part 1279

STRUCTURE AND OPERATION

TM-25

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

• Each planetary gear enters the state described below.

Front planetary gear

Under drive planetary gear

Rear planetary gear

Mid planetary gear

“D

2

” Position

Name

Front sun gear

Front carrier

Front internal gear

Condition

—

Output

Input

Direction of rotation

Counterclockwise revolution

Clockwise revolution

Clockwise revolution

Number of revolutions

Deceleration from front internal 

gear

Deceleration from front internal 

gear

Same number of revolution as the 

input shaft

Name

Under drive sun gear

Under drive carrier

Under drive internal gear

Condition

—

Fixed

Input/Output

Direction of rotation

Counterclockwise revolution

—

Clockwise revolution

Number of revolutions

Acceleration from under drive in-

ternal gear

—

Same number of revolution as the 

front carrier

Name

Rear sun gear

Rear carrier

Rear internal gear

Condition

Fixed

Output

Input

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from rear internal 

gear

Same number of revolution as the 

under drive internal gear

Name

Mid sun gear

Mid carrier

Mid internal gear

Condition

Fixed

Output

Input

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from mid internal 

gear

Same number of revolution as the 

rear carrier

TM-26

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

STRUCTURE AND OPERATION

• The front sun gear and the under drive sun gear are fixed by the 2346 brake.
• The 2nd one-way clutch regulates counterclockwise rotation of the rear sun gear.
• The mid sun gear is fixed by the low brake.
• Each planetary gear enters the state described below.

JSDIA0868GB

STRUCTURE AND OPERATION

TM-27

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Front planetary gear

Under drive planetary gear

Rear planetary gear

Mid planetary gear

“M2” Position

Name

Front sun gear

Front carrier

Front internal gear

Condition

Fixed

Output

Input

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from front internal 

gear

Same number of revolution as the 

input shaft

Name

Under drive sun gear

Under drive carrier

Under drive internal gear

Condition

Fixed

—

Input/Output

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from under drive in-

ternal gear

Same number of revolution as the 

front carrier

Name

Rear sun gear

Rear carrier

Rear internal gear

Condition

Fixed

Output

Input

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from rear internal 

gear

Same number of revolution as the 

under drive internal gear

Name

Mid sun gear

Mid carrier

Mid internal gear

Condition

Fixed

Output

Input

Direction of rotation

—

Clockwise revolution

Clockwise revolution

Number of revolutions

—

Deceleration from mid internal 

gear

Same number of revolution as the 

rear carrier

TM-28

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

STRUCTURE AND OPERATION

• The front sun gear and the under drive sun gear are fixed by the 2346 brake.
• The 2nd one-way clutch and the high and low reverse clutch regulate counterclockwise rotation of the rear

sun gear.
NOTE:
The high and low reverse clutch operates only while coasting.

• The mid sun gear is fixed by the low brake.
• Each planetary gear enters the state described below.

JSDIA0869GB