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Home >> Infiniti >> 2013 >> FX37 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Automatic Transmission) >> System Description >> Shift Mechanism >> System Description >> Power Transmission >> "D7", "DS7" and "M7" Positions

"D7", "DS7" and "M7" Positions

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power Transmission Flow Diagram (D7, DS7 And M7 Positions)
G09002168Courtesy of NISSAN NORTH AMERICA, INC.
FRONT PLANETARY GEAR

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
UNDER DRIVE PLANETARY GEAR

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 internal gear - Same number of revolution as the front carrier
REAR PLANETARY GEAR

Name Rear sun gear Rear carrier Rear internal gear
Condition - Input/Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from rear carrier Same number of revolution as the input shaft Same number of revolution as the under drive internal gear
MID PLANETARY GEAR

Name Mid sun gear Mid carrier Mid internal gear
Condition - Output Input
Direction of rotation Clockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Acceleration from mid internal gear Acceleration from mid internal gear Same number of revolution as the input shaft