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Two-mode active transmission with steptronic, Driving – BMW ActiveHybrid X6 2010 User Manual

Page 18

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Driving

16

Possible range

The vehicle can travel approx. 1.5 miles/2.5 km
under electric power.

Driving with combustion engine: DRIVE

The combustion engine supplies the drive out-
put for moving the vehicle. The high-voltage
battery is charged at the same time.

Automatic starting while driving

Under the following circumstances, the com-
bustion engine is started automatically while
driving:

>

transmission position M/S selected

>

driving speed greater than 40 mph/65 km/h

>

low charge state or fully charged high-volt-
age battery, e.g. when driving downhill

>

to protect the high-voltage system from
overheating, e.g. when driving downhill

>

high output request, e.g. by accelerator
pedal position.

Automatic switching off while driving

When decelerating under the conditions for
electric driving, refer to page

15

, the combus-

tion engine is switched off.

Assisted combustion engine

The combustion engine supplies the main drive
output for moving the vehicle.
The electric motors assist by providing addi-
tional drive output as needed.

eBOOST

When accelerating quickly, e.g. when passing
another vehicle, power from the two electric
motors simultaneously is requested in addition
to that of the combustion engine. To trigger
this, step down hard on the accelerator pedal.
Display in the instrument panel, refer to
page

22

.

Energy recovery: CHARGE

The hybrid system makes it possible to convert
kinetic energy into electrical current, e.g. during

braking. This energy recovery is used to charge
the high-voltage battery. The battery supplies
this stored energy back to the electric motors
as needed.
To recover the braking energy, the following
conditions must be met:

>

The vehicle is in motion.

>

The selector lever is in the position D, R, or
M/S.

>

The high-voltage battery is not completely
charged.

Display of energy recovery in the instrument
panel, refer to page

22

Two-Mode Active

Transmission with Steptronic

The Das Two-Mode Active Transmission is an
automatic transmission in which the gears can
be shifted in a fully automatic fashion or can be
shifted manually on demand. The manual shift-
ing is performed using the selector lever or the
shifting paddles of the Steptronic, refer to
page

18

.

Automatic shifting may be perceptible
when decelerating at a low speed.

<

Transmission positions

P R N D M/S + –

Hold the brake pedal down until starting
to drive; otherwise, the vehicle can begin

to roll.

<

Displays in instrument panel

P R N D, S1 through S7, M1 through M7

Online Edition for Part no. 01 41 2 603 632 - © 09/09 BMW AG

Online Edition for Part no. 01 41 2 603 632 - © 09/09 BMW AG