On-demand control of ancillary units saves energy
Intelligent energy management in the new BMW 3-Series is further enhanced by the ancillary units, which consume significantly less energy compared with conventional systems. Examples include the on-demand coolant pump, the electronically controlled oil pump and the electromechanical steering system, which only consumes electric power when steering assistance is actually required. The special air conditioning compressor featured on many of the sports sedan models works on the same principle. As soon as the driver switches the air conditioning off, the belt drive to the compressor is disconnected by a magnetic clutch, to minimise power drain.
See also:
Audio playback
Selecting a track using the buttonPress the
button for the appropriate direction as often as
necessary until the desired track is reached.
Selecting a track using iDriveAudio CDs
1. " ...
Drive-off assistant
This system supports driving away on gradients.
The parking brake is not required.
1. Hold the vehicle in place with the foot brake.
2. Release the foot brake and drive away without
delay.
After ...
HDC Hill Descent Control
The concept
HDC is a downhill driving assistant that automatically
controls vehicle speed on steep downhill
gradients. Without applying the brakes, the
vehicle moves at slightly more than walking
...