Transaxle Description
The CD4E automatic transaxle is a four-speed, front wheel drive automatic transaxle with electronic controls for:
- Electronic pressure control (EPC) solenoid for shift quality.
- Shift scheduling.
- 3-2 shift timing.
- Coast braking.
- Torque converter clutch control.
The transaxle features a four element torque converter with a torque clutch and a geartrain that includes:
- Compound planetary gearset.
- Chain drive.
- Planetary gearset final drive.
- Pinion and side gear differential.
The hydraulic control system of the transaxle has five solenoids that control:
- Shift feel, through line pressure control.
- Shift scheduling, through shift valve positioning control.
- Modulated application of the torque converter clutch.
- Timing of 3-2 shifts.
- Engine braking during coast operation.