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Transmission Component and System Description

Transmission Component and System Description


Gearbox functions can be divided into three parts:


• Mechanical Components

• Hydraulic Components

• Control System


Mechanical Components


• Torque converter with lock-up clutch

• 2 planetary gear units, of which the rear is double.

• 3 disc clutches

• 1 band type brake

• 1 multi-disc brake

• 1 free wheel

• Final drive with differential




(1) Torque converter housing


(2) Torque converter clutch


(3) Turbine


(4) Impeller


(5) Stator


(6) Free-wheel


(7) Input shaft


Hydraulic Components



(1) Torque converter


(2) Valve housing


(2a) Solenoid, solenoid valve


(2b) Linear solenoid


(2c) Control valve


(3) Clutch, brake


(4) Oil cooler


(5) Oil pump


(6) Planetary gear


(7) Oil pressure


(8) Gearbox oil, inlet


(9) Gearbox oil, return


(10) Operating pressure


(11) Lubrication


(12) Oil flow to pump


Control System


• Linear solenoids

• PWM solenoids

• Speed sensors

• Temperature sensor

• Transmission Control Module including gear position sensor

• Gear shift lever

• Sport Mode Switch