3 Series E91 330xi (N52) TOUR
The set speed is also maintained when going downhill. (Brake intervention via the DSC)
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The lateral acceleration in bends is restricted to a comfortable level.
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Indicator disc in the instrument cluster:
The indicator disc shows the set speed.
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Brief display in the LCD display of the instrument cluster:
The newly selected set speed is shown briefly in the LCD display.
Brief description of components
The following components send signals for the cruise control:
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Cruise-control system steering-column stalk
Cruise control is set and called up using the cruise control system steering-column stalk.
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ACC sensor
The ACC sensor monitors the distance, angle and relative speed of vehicles driving ahead. (Relative speed: The
relative speed is the speed difference between the two moving objects, that is, the speed difference of the two
objects relative to each other.)
The ACC sensor is a radar sensor. The ACC sensor has a limited monitoring range (approx. 120 metres).
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LDM control unit
The LDM control unit is the interface to the engine and to the brakes.
In the LDM control unit, the driver's entries regarding the cruise control system are monitored and evaluated.
The "cruise control with brake function" option is integrated in the LDM control unit.
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E92 from 06/2006 and
E90, E91 from 09/2006 and
E93 from 12/2006
The LDM control unit is no longer fitted on vehicles with option 544 "Cruise control with brake function".
Because of a software modification in the DSC control unit (DSC Mk60E5), the DSC control unit assumes
control of the functions of the LDM control unit.
If Active Cruise Control is fitted, the LDM control unit evaluates the data sent from the ACC sensor.
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The LDM also communicates with the following control units:
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Instrument cluster
The instrument cluster shows all displays for cruise control.
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An indicator disc in the round instrument shows the set speed.
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The LCD display briefly shows the newly selected set speed (approximately 6 seconds).
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In addition, the LCD display also shows a Check-Control message.
With Active Cruise Control, there are also the following displays:
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Monitored vehicle
(Display through lit icon in the instrument cluster)
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Request for action to driver
(Display through flashing icon in the instrument cluster. Depending on the national version, an acoustic
SBT Cruise control E90, E91, E92, E93
BMW AG - TIS
22.02.2013 02:12
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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