Adaptive Transmission Control: Notes

As with earlier automatic transmissions, the 6-speed automatic transmissions offer the choice between a comfort program and a sport program.

The adaptive transmission control (component of electronic transmission control) adapts the shift characteristics of the comfort program and sport program to the driver's wish and the driving situation.

In both programs, the adaptive transmission control changes from a basic map to a performance-orientated map, as required:

• Comfort Program In Selector Lever Position "D"

  The comfort program is based on 2 characteristic maps: The XE map (extreme economy) and the E map (economy). The EGS control unit normally selects the economical XE map (= basic map). In case of particular demands (e.g. load requirements), the system will change to the performance-orientated E map. If the input signals change in favour of a more gentle driving style, the system will change back to the more economical XE map.

• Sport Program In Selector Lever Position "M/S"

  The sport program effects dynamic, sporty shift characteristics. In the sport program, there is the basic S map (sport) and the performance-orientated XS map (extreme sport). If an extremely dynamic driving style is called for, the system will change from the S map to the performance-orientated XS map.

The adaptive transmission control takes the following demands into account:

• Adaptation To Driver Type
• Driving Uphill Or Trailer Towing
• Driving Downhill
• Braking Deceleration And Automatic Upshift
• Winter Program