5 Series E60 530d (M57TU) SAL
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Brake light switch
The brake light switch tells the active cruise control when the brake pedal has been pressed. Active Cruise
Control is deactivated if braking actions are necessary.
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Clutch mode (manual transmission only)
Clutch engagement/disengagement is recognised by the signal from the clutch module.
During the clutch engagement/disengagement process, the engine speed is maintained at an optimal speed
range by the DME or DDE.
After the clutch has been reengaged, the DME/DDE will adjust back to the current torque request from the
Active Cruise Control.
If the engine speed is too high or too low, an audible signal and a check control message prompt the driver to
change gear. The prompt to upshift when the engine speed is too high is only made during the warm-up phase
of the engine.
If no gearshift or change in engine speed is made within approx. 5 seconds of such a signal being given, active
cruise control will be deactivated.
If the clutch is disengaged for longer than about 6 seconds, Active Cruise Control (ACC) will be deactivated.
Active cruise control cannot be activated in 1st gear.
Active cruise control is automatically deactivated in the "neutral gate" (i.e. no gear engaged and clutch not
depressed).
Important: Only install prescribed rear differential unit.
Active Cruise Control has a variant coding which is co-ordinated with the differential ratio. If a different rear
differential unit is installed, it may be the case that the Active Cruise Control will deactivate itself in manual
transmissions, particularly in the higher gears. In this case, no fault is entered in the fault memory.
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EGS and SMG:electronic transmission control and sequential manual transmission
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Electronic transmission control
The electronic transmission control evaluates the data from the DME/DDE and ACC sensor.
The adaptive transmission control (constituent component of electronic transmission control) adapts the
shift characteristics of the driving programme to the driver's commands and the driving situation.
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Sequential manual gearbox
No automatic upshift in manual mode.
In order to prevent excessively high engine speeds, an audible signal and check control message prompt
the driver to change gear. The prompt to upshift when the engine speed is too high is only made during the
warm-up phase of the engine.
The following data are transmitted from the EGS or SMG to the ACC sensor:
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Gear engaged
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status information about gearshifts
The ACC sensor transmits the following data to the EGS/SMG:
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Current operating status
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Current torque request
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LM: Light module
When active cruise control is in operation, the brake lights are actuated during automatic braking (legal
requirement). This requires a signal sent via the K-CAN to the light module.
Active cruise control uses the "turn signals" signal from the light module for assistance when changing lanes. In
other words, if a left turn signal is given before overtaking, the distance to the vehicle in front is reduced. The
SBT Active Cruise Control E60, E61, E63, E64, E65, E66
BMW AG - TIS
22.02.2013 10:59
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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