Automatically Shifted Manual Transmission/Transaxle: Description and Operation

SYSTEM OUTLINE

1. SYSTEM START
When the driver's door is opened, the transmission control ECU is activated, and the motor pump operates to accumulate pressure. The system enters stand-by mode when the accumulated pressure reaches the specified level.
In case the system is not started within a certain period of time, the transmission control ECU is turned off automatically.

2. ENGINE START
The shift lever lock will be released when the ignition SW is turned to "ON" position.
It is possible to start the engine only when the brake pedal is depressed and the shift lever is in N position.

3. START CONTROL
When the accelerator pedal is depressed while the gear position indicator shows 1st gear, 2nd gear or reverse, the clutch is engaged to start the vehicle off.
In this case, the clutch stroke is controlled to realize the appropriate engine rpm according to the accelerator pedal opening angle.

4. SHIFT CONTROL
The shift is controlled according to the signals from the shift lever position sensor (Position SW) or the transmission shift SW (Steering SW). In case shifting up with the accelerator pedal depressed, the electronic throttle is closed to prevent sudden increase in engine revolution.
In case shifting down with the accelerator pedal released, the electronic throttle is opened to adjust the engine rpm.

5. STOP OPERATION
To stop smoothly without engine stall, when the transmission input rpm decreases to the specified level, the clutch is disengaged automatically.
In case the shift lever is in S position, the gear is automatically shifted to 1st gear when the vehicle speed drops to the specified level, therefore, it is not necessary to operate the shift lever when starting off again.

6. PARKING OPERATION
Before stopping the engine, apply the parking brake, and place the shift lever in S or R position. Confirm the gear position by the indicator, and turn the ignition SW to OFF.
When the ignition SW is turned to OFF, the shift lever will be locked at that position. The clutch will be engaged within 1 second later, and the vehicle will be parked with the gear in.
Within 5 seconds from ignition OFF, the gear position can be checked by the indicator.