3 Series E91 330d (M57T2) TOUR
warning is also made.)
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Selected distance from vehicle driving ahead
(Display via icon in the instrument cluster)
[more ...]
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DSC: Dynamic Stability Control
The current status of the vehicle is detected by the DSC, e.g. by evaluating the following sensor signals:
•
Rate of yaw (measure of movement of the car about its vertical axis)
•
Steering angle
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Information on the brake pressure
•
Circumferential wheel speed
The DSC then transmits data about the current vehicle status to the LDM.
The following data is transmitted by the LDM to the DSC:
•
Request for vehicle deceleration
The request for vehicle deceleration from the LDM is received by the DSC 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.)
>
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.
With automatic braking, the brake lights are activated depending on vehicle deceleration (legally prescribed).
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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 LDM to the DME or
DDE:
•
Current torque request
The following data is transmitted to the LDM from the DME or the DDE:
•
Driver's command (signals from accelerator pedal module)
>
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.
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JBE: Junction box electronics
The JBE is the data interface (= gateway) between the K-CAN and the PT-CAN.
(K-CAN = body CAN; PT-CAN = powertrain CAN.)
Signals from the F-CAN (Chassis CAN) are simply looped through. (No signal processing in the JBE. The F-
CAN cables are simply routed through the junction box housing.)
The junction box consists of the junction box electronics and the electrical distribution centre.
The diagnosis cable is connected to the junction-box electronics.
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FPM: Accelerator pedal module
SBT Cruise control E90, E91, E92, E93
BMW AG - TIS
18.02.2013 21:20
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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