Transmission Control Systems: Description and Operation

CONTROL SYSTEM OUTLINE

System Relational Diagram:

Control System Overview:

The RE4RO3A automatic transmission senses vehicle operating conditions through various sensors. It always controls the optimum shift position and reduces shifting and lock-up shocks.

A/T CONTROL UNIT FUNCTION

Input/Output Signal Of A/T Control Unit:

The function of the A/T control unit is to:
- Receive input signals sent from various switches and sensors.
- Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
- Send required output signals to the respective solenoids.