5 Series E60 M5 (S85) SAL
The SMG control unit suppresses the upshift. This ensures that the engine braking effect is retained and
supports the braking action.
•
Manual intervention in automatic mode
If the gear lever or the gearshift paddles are operated in automatic mode, the system will automatically
change to manual mode.
Automatic mode must be selected again.
•
Driving uphill
The SMG control unit uses signals from the following components to recognise when the vehicle is driving
uphill:
-
Longitudinal acceleration sensor
-
Wheel-speed sensors
-
Accelerator pedal position
The SMG control unit prevents unintentional upshifts and irritating pendulum shifts.
•
Driving downhill
The SMG control unit uses signals from the following components to recognise when the vehicle is driving
downhill:
-
Throttle valve potentiometer (load signal)
-
Wheel-speed sensors (road speed)
-
Brake light switch
The SMG control unit shifts down a gear as the road speed increases. This ensures that the engine braking
effect is retained and increased.
•
Braking deceleration and automatic downshift
The SMG control unit uses signals from the following components to recognise braking deceleration:
-
Brake light switch
-
Wheel-speed sensors
-
Accelerator pedal position
The SMG control unit shifts down according to road speed to maintain the engine's braking effect. As this
happens, several gears may be skipped. The correct gear is automatically selected when the vehicle
accelerates again.
Launch control (acceleration assist system)
Launch control allows optimum vehicle acceleration from standstill, comparable to motor racing standards. For
this to happen, the accelerator pedal only has to be quickly and fully depressed (kickdown).
When launch control is enabled, the system automatically shifts up through the gears, even in manual mode,
for as long as the accelerator pedal is fully pressed down. This prevents the engine from reaching critical
speeds.
Preconditions for enabling launch control:
•
Vehicle standstill
•
Dynamic Stability Control (DSC) deselected
•
Driving program 6 selected at the for "Drivelogic" program switch
•
Program "P 500" for engine control selected with the POWER button
•
Sequential (manual) mode selected
SBT Sequential M transmission E60 M5, E63 M6
BMW AG - TIS
23.02.2013 19:41
Issue status (12/2007) Valid only until next DVD is issued
Copyright
Page - 8 -
