Adaptive Step: one-size-fits-all or one-each per key fob?

[Rubber Ducky]

OK. The Step xmission is adaptive, reprogramming its shift points to better match the driver's observed driving patterns. But does it adapt to the overall observed pattern or does it have two programs, one for each key fob/driver?

Have a 550i with Step waiting for me at Spartanburg. Wife will drive it mostly...and mostly in a more conservative style. When I drive it, more aggressive style (tromp that sucker). Would be nice if the software recognized two different drivers (by key fob) and programmed individual driving styles. Does it? Thanks.

[stream]

The adaptive transmission is not associated with any key/driver. In fact, it's reset every time you pull away from a standstill (see attachment for all you want to know about the steptronic trans).

Adaptation to driver type
The adaptation to the driver type is made using the values kick-fast, cornering detection, brake evaluation
and constant-speed travel.
The driver-type adaptation is restarted each time the vehicle pulls away from a standstill.
Kick-fast
If the accelerator pedal is depressed rapidly, the shift program is changed accordingly. This is achieved
by the detected accelerator-pedal value being compared with threshold values in the EGS control unit.
The result of this comparison is the proposal of one of the two possible adaptation programs (XE or E in
comfort program, S or XS in sport program).
Cornering detection
Cornering detection reacts to the vehicle's lateral acceleration with an indirect adaptation to the driver
type. Lateral acceleration is considered an indirect statement of the preferred driving dynamics and does
not cause an immediate gearshift reaction (downshifts when cornering could negatively affect driving
stability).
The lateral acceleration is calculated by means of signals from the wheel speed sensors on the front and
rear axles and from the yaw rate and the road speed.
Brake evaluation
The braking action is evaluated in a similar way to "kick-fast".
The braking deceleration is measured and compared with threshold values in the EGS control unit. The
result of this comparison is the proposal of one of the two possible adaptation programs (XE or E in
comfort program, S or XS in sport program).

[Rubber Ducky]

Great answer. Tks.

[DBU]

The adaptive transmission is not associated with any key/driver. In fact, it's reset every time you pull away from a standstill (see attachment for all you want to know about the steptronic trans).

Adaptation to driver type
The adaptation to the driver type is made using the values kick-fast, cornering detection, brake evaluation
and constant-speed travel.
The driver-type adaptation is restarted each time the vehicle pulls away from a standstill.
Kick-fast
If the accelerator pedal is depressed rapidly, the shift program is changed accordingly. This is achieved
by the detected accelerator-pedal value being compared with threshold values in the EGS control unit.
The result of this comparison is the proposal of one of the two possible adaptation programs (XE or E in
comfort program, S or XS in sport program).
Cornering detection
Cornering detection reacts to the vehicle's lateral acceleration with an indirect adaptation to the driver
type. Lateral acceleration is considered an indirect statement of the preferred driving dynamics and does
not cause an immediate gearshift reaction (downshifts when cornering could negatively affect driving
stability).
The lateral acceleration is calculated by means of signals from the wheel speed sensors on the front and
rear axles and from the yaw rate and the road speed.
Brake evaluation
The braking action is evaluated in a similar way to "kick-fast".
The braking deceleration is measured and compared with threshold values in the EGS control unit. The
result of this comparison is the proposal of one of the two possible adaptation programs (XE or E in
comfort program, S or XS in sport program).


Thanks for the great answer. Where did you get the attached .pdf document. I learned a lot reading it and I want more... (on other subjects). Thanks again.