Automatic Transmission/Transaxle: Description and Operation

GENERAL DESCRIPTION
The transaxle is configured of the torque converter and gear train. A 3-element, 1-step, 2-phase torque converter with built-in torque converter clutch is incorporated. The gear train is configured of three sets of multi-plate clutches, two sets of multi-plate brakes, one set of one-way clutches and two sets of planetary gears configured of the sun gears, carriers, pinion gears and annulus gears.


GENERAL INFORMATION
This automatic transaxle is made up of the following main parts.
1. The torque converter employs a 3 element, 1 step, 2 phase lock-up clutch.
2. The gear train is made up of 3 multi-plate clutches, 2 multi-plate brakes and 2 planetary gears made up of a sun gear, carrier, pinion gear and annulus gear.
3. The cases consist of a converter housing, transaxle case, rear cover and a valve body cover.
4. Parts related to oil pressure regulation are the oil pump, which pressurizes the oil; the regulator, which controls the pressure setting; the solenoid valve, which changes the oil pressure with electrical signals; the pressure control valve, which controls the oil pressure coming from the solenoid valve that effects each clutch and brake; each kind of valve, which carry out the retention of the oil pressure through the lines; and finally the valve body, which houses all the valves.


TRANSAXLE CONFIGURATION DRAWING





FUNCTION ELEMENT TABLE





SECTIONAL VIEW





ELECTRONICALLY-CONTROLLED SYSTEM





HYDRAULIC CONTROL SYSTEM





SHIFT PATTERN CONTROL