BMW 3: DTC Dynamic Traction Control
Concept
DTC is a version of the DSC Dynamic Stability Control where forward momentum is optimized.
The system ensures maximum headway on special road conditions or loose road surfaces, for instance unplowed snowy roads, but with somewhat limited driving stability.
General information
When DTC is activated, the vehicle has maximum traction. Driving stability is limited during acceleration and when driving in curves.
You may find it useful to briefly activate DTC in the following situations:
- When driving in slush or on uncleared, snow-covered roads.
- When driving off from deep snow or loose ground.
- When driving with snow chains.
Overview
Button in the vehicle
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DSC OFF
Activating/deactivating DTC
Activating DTC
Press the button.
TRACTION is displayed in the instrument cluster and the indicator light for DSC OFF lights up.
Deactivating DTC
Press the button again.
TRACTION and the DSC OFF indicator light go out.
Display
Display in the instrument cluster
If DTC is activated, TRACTION is displayed in the instrument cluster.
Indicator/warning lights
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The indicator light lights up:
DTC is activated.
Automatic program change
In certain situations, the DSC is activated automatically:
- If Active Cruise Control with Stop&Go function ACC is activated.
- On a braking intervention by the Intelligent Safety systems.
- The vehicle has a flat tire.
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xDrive
Concept
xDrive is the all-wheel-drive system of the vehicle.
The interaction of xDrive and other suspension
control systems, such as DSC Dynamic Stability
Control, further optimizes traction and driv
Manual Speed Limiter
Concept
The system can be used to set a speed limit, for
instance to prevent the vehicle from exceeding
speed limits.
General information
The system can limit the speed, starting at a
value of 20 mph/
SEE MORE:
Overview
Button in the vehicle
Park assistance button
Ultrasound sensors
Ultrasound sensors of the PDC,
for instance in the bumpers.
Functional requirements
Ensure full functionality:
Do not cover sensors, for instance with stickers,
bicycle racks.
Keep the sensors clean and unobstructed.
Switching on/
Tasks
The Electrical Machine Electronics is made up internally of three
subcomponents:
Bidirectional DC/AC converter
Unidirectional DC/DC converter
EME control unit
The Electrical Machine Electronics performs the following functions using the
subcomponents
mentioned:
Torque restriction of the dri
