AGS Features That React to Operating Conditions

AGS Features That React To Operating Conditions







Stop and Go Driving:This feature is activated by a defined sequence of shifts which are as follows:
- Upshift from first to second - followed by a downshift from second to first - followed by another upshift from first to second. This is then followed by the vehicle coming to a complete stop.

After this sequence, the transmission will stay in second gear. The AGS program has recognized stop and go driving and this function prevents excessive shifting during heavy traffic conditions. The second gear start will is cancelled when:
- The throttle pedal exceeds limits (quick step on the pedal)
- The range selector is moved to P, N or R.

Winter Drive Program: Wheel slip is calculated by the AGS based on wheel speed signal data provided by the wheel speed input signals or the traction control system via CAN bus. The AGS modifies shift characteristics to match winter mode for better traction.

When active, the transmission will start in second gear and the shift points are lowered. The purpose of this program is to improve the drivability of the vehicle with slippery road conditions.

Curve Recognition:












This feature is activated when the AGS detects a variation of front wheel speeds via the wheel speed input signals from the ASC control module.

On the GS 20 system of the A5S 360R transmission the wheel speed sensor signals and their speed variations are provided via the CAN bus.

When curves are recognized, the AGS inhibits up shifting until the front wheel speed signals equalize indicating the vehicle is driving straight ahead.

This feature enhances the perceived vehicle handling characteristics when cornering at higher speeds.

Cruise Control Program: When cruise control is activated, the AGS is notified either by a direct data link or via the CAN bus (system dependent). The AGS activates a program suitable for active cruise control operation preventing pendulum locking/unlocking of the torque converter and minimizes up/down shifting. Additionally, the cruise control system can request a downshift if the vehicle speed exceeds the set speed limit when coasting downhill.

Hill Recognition Program: The AGS activates this feature when it detects a high engine load condition at lower road speeds. When the vehicle is traveling up hill the shift points are raised to prevent repetitive up/down shifting.

Manually Selected Extra Sport Program: Longer delay shift pattern with higher engine RPM. This program is similar to the AGS detected sport program but requires the driver to move the range selector from D to 4th gear or lower.

This program automatically returns to AGS shift program selection when the shifter is returned to the D position.