Note: The gearbox type is stamped on an aluminum plate affixed to the bulkhead of the engine compartment in the line "TRANS / AXLE".
Planetary gearbox.
The planetary gearbox contains two planetary gear sets, three lockup clutches and two disc brakes.
Power from the engine through the torque converter is transmitted to the input shaft of the planetary gearbox.
Gear shifting is accomplished by activating a certain combination of two controls, which changes the speed of the output shaft.
Hydraulic control system
The hydraulic control system consists of an automatic transmission pump, an automatic transmission fluid cooler, a control valve block, hydraulic accumulators, clutches and brakes.
The main pressure in the system is created by the pump, it is regulated depending on the load and speed of the car and ensures the operation of the torque converter. clutches and brakes.
Shift valves in the valve block control fluid flow to the torque converter and planetary gearbox.
Electronic control system
The electronic control system includes sensors of external electronic systems (throttle position sensor, coolant temperature sensor, etc.), various sensors at the checkpoint (input and output shaft speed sensors, automatic transmission fluid temperature sensor, vehicle speed sensor, etc.), control switches, automatic transmission electronic control unit, solenoid valves for controlling the flow of working fluid 8 in the hydraulic system (located on the control valve block).