5 Series E60 530Li (N52K) SAL
In addition, the ACC control unit communicates with the following control units:
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DME or DDE:Digital engine electronics or digital diesel electronics
The DME/DDE controls the engine intervention. The following data is transmitted by the ACC sensor to the DME
or DDE:
•
Current torque request
The following data are transmitted from the DME or DDE to the ACC sensor:
•
Driver's command (signals from accelerator pedal module)
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SGM: Safety and gateway module
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E65, E66 as well as
E60, E61, E63, E64 up to 09/2005:
The SGM is the gateway (= data interface) between:
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PT CAN
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K-CAN
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Byteflight
The diagnosis lead is also connected at the SGM.
>
E60, E61, E63, E64 from 09/2005
The body-gateway module replaces the safety and gateway module (SGM).
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KGM: Body-gateway module
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E60, E61, E63, E64 from 09/2005
The KGM is the gateway (= data interface) between:
-
PT CAN
-
K-CAN
The diagnosis lead is also connected at the KGM.
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DSC: Dynamic Stability Control
The current status of the vehicle is detected by the DSC, for example by evaluating the following sensor signals:
•
Rate of yaw (measure of movement of the car about its vertical axis)
•
Steering angle
•
Information on the brake pressure
•
Circumferential wheel speed
DSC then transmits data about current operating conditions to the ACC sensor.
The following data are transmitted by the ACC sensor to the DSC:
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Request for vehicle deceleration:
DSC receives the request for vehicle deceleration from the Active Cruise Control via the PT-CAN. DSC
reduces the speed. To do this, DSC intervenes in the brake system. (goal: comfortable vehicle deceleration.
No DSC intervention in the sense of enhanced operating stability.)
With automatic braking, the brake lights are actuated depending on the vehicle deceleration and the gradient of
the road (legally prescribed).
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FPM: Accelerator pedal module
The accelerator pedal module signals the driver's command. This signal is required to check the respective
driving status. (evaluation via DME/DDE)
By pressing the accelerator pedal, the speed setpoint of the Active Cruise Control can be overridden at any time.
SBT Active Cruise Control E60, E61, E63, E64, E65, E66
BMW AG - TIS
22.02.2013 16:48
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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