5 Series E60 525d (M57TU) SAL
For actuation, the following signals are evaluated:
•
Vehicle road speed
•
Lateral acceleration
•
Longitudinal acceleration
•
Yaw rate (rotation around the vertical axis)
•
Steering angle
•
Steering-angle rate
•
The engine must be running
> From 09/2005 in M5
On stretches of road with many bends, the two armrest side sections are incorporated into the "Sport" map. The
winding stretch of road is detected by the changing lateral acceleration.
This change will also be incorporated into the E60/E61 at a later date.
Undervoltage and overvoltage
The active seat back width adjustment control unit detects undervoltage and overvoltage.
Undervoltage On-board supply voltage less than 9 volts
Overvoltage On-board supply voltage greater than 16 volts
Easy Entry facility for driver's seat and front-passenger seat
For ease of access, the seat back width adjustment is opened completely.
The Easy Entry facility for the driver's seat is activated under the following conditions:
•
Driver's door is opened
•
Terminal R is switched off when the driver's door is closed
The Easy Entry facility is deactivated at terminal 15 ON. The stored seat back width is approached.
The Easy Entry for the front-passenger seat is activated under the following conditions:
•
Door on the passenger side is opened when the seat belt has not been fastened.
Centring for setting the seat back width adjustment
Following every manual adjustment, the position of the backrest side section is tracked. During this process,
compensation is made for any difference between the left and right position. Compensation is made if the
signals from the Hall sensors vary by at least 5 Hall pulses.
Centring begins 1 second after a seat back width adjustment has been made. If one attempt fails, the centring
process is repeated 2 seconds later.
Active centring is interrupted by manual adjustments.
If the active seat back width adjustment is activated, the seat back width is not tracked.
Soft start and soft stop of drive for seat back width adjustment
The start and stop for the drive is specially controlled.
Soft start and stop of the seat back width adjustment drive leads to a:
•
Decrease in power consumption (no voltage peaks)
•
Decrease in noise during adjustment
SBT Active seat back width adjustment E60, E61
BMW AG - TIS
12.02.2013 15:57
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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