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X6 SAV - E71/E72 (2008 - ...) - EfficientDynamics and Automatic Transmission

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X6 SAV - E71/E72 (2008 - ...)
Side, Rear and Interior View
Storage and Space
Dynamics and Comfort
Agility and Stability
Active Steering and Adaptive Drive
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Powerful Straight-six: Petrol and Diesel
EfficientDynamics and Automatic Transmission
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BMW EfficientDynamics: wide range of features serving to reduce fuel consumption and emissions – and all coming as standard.
Offering a wide range of features serving to enhance efficiency on and around the engine, all versions of the new BMW X6 ensure a particularly good balance of power, performance and economy – and all these features come as standard.
Brake Energy Regeneration on all engine variants, to mention just one example, ensures intelligent management of the flow of energy concentrating the generation of electricity for the on-board network on the overrun and brake application phases. This serves to consistently charge the battery, without extracting power from the engine and, as a result, without using any of the energy provided by the fuel.
As long as the engine is pulling the car, on the other hand, the alternator generally remains disconnected and not in use.
Apart from outstanding efficiency in the generation of electric power, this also serves to provide more power for acceleration and thus for enjoying an even more dynamic style of motoring.
The all-round efficiency of the BMW X6 is further optimised by on-demand control and activation of the engine’s ancillary units helping, inter alia, to significantly reduce the power required for the fuel and steering assistance pumps and thus again saving energy in the process.
The drive belt for the a/c compressor, to present another example, comes with an independent clutch automatically disconnecting the compressor as soon as the driver switches off the air conditioning and thus reducing the drag forces generated by the compressor to a minimum.
Further examples are the use of tyres with reduced roll resistance and the optimisation of the car’s aerodynamics. The cooling air flaps behind the BMW kidney grille and in the air intake, for instance, are controlled electroni-cally, helping to reduce the air drag of the vehicle when closed and only being opened in response to greater demand for cooling.

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Automatic transmission designed for sports motoring.
Power is transmitted on the BMW X6 in standard trim by six-speed automatic transmission with a particularly sporting gearshift now enhanced to an even higher level.
The automatic transmission chooses the appropriate gear with incomparable spontaneity, precision and efficiency, benefiting not only the superior comfort, but also the supreme driving dynamics of the BMW X6. Being directly connected to the engine, incorporating a converter clutch operating largely without slip, and allowing particularly precise choice of gears, the six-speed automatic transmission also helps to optimise the overall efficiency of the power unit in practice.
The automatic transmission shifts gears either in response to the electronic gear selector lever or the gearshift paddles on the steering wheel. The shift pattern on the gear selector lever is the same as on a conventional automatic transmission, but with the selector level returning to its starting point after each gearshift.
Transmission management is not mechanical, but rather goes through electrical signals. To activate the manual gear selection mode, all the driver has to do is press the selector lever to the left. Then he is able to shift gears in sequence by hand – either from the gear selector lever or through the gearshift paddles featured as standard on the steering wheel: Pulling one of the paddles out serves to shift up gears, pressing the paddle serves to shift down.
Using this paddle gearshift, the driver is able to shift gears with maximum spontaneity in a manual mode. So whenever he operates one of the paddles, the transmission will shift immediately also from the automatic mode into manual gearshift.

Intelligent lightweight technology for enhanced dynamics and solidity.
Like the other models in the BMW X range, the BMW X6 boasts a particularly strong and sturdy body. To keep weight to a minimum despite this outstanding solidity, BMW’s engineers developing the new model focused consistently from the start on intelligent lightweight construction: Both the choice of mate-rials as well as the arrangement and geometry of the various support bars, rods and other support elements are based on an overall concept combining maximum crash safety with supreme agility on the road.
To optimise passive safety to the highest conceivable standard, BMW’s engineers and other specialists sought to give the passenger cell maximum stability right from the beginning in developing the body-in-white. Forces acting on the vehicle in an accident, therefore, are guided via the engine support arms and the chassis along several load paths in order to avoid extreme loads acting on individual components.
Within the interior of the new BMW X6, not only frontal and hip thorax airbags come as standard, but also curtain head airbags at the side, inflating out of the covers on the A-pillar and roof lining and thus protecting the occupants both front and rear from injury.
The new BMW X6 features three-point inertia-reel belts on each seat, the restraint systems also boasting a belt force limiter together with a belt tightener on the front seats.
To prevent cervical spine injury in the event of a collision from behind, the front seats on the BMW X6 come as standard with crash-activated headrests. ISOFIX child seat fastenings are likewise standard on the rear seats.
All restraint systems are masterminded by one central electronic safety “brain” monitoring the type and severity of a collision and activating the most effective protection units in each case. The frontal airbags, in turn, come with a gas generator operating in two stages and thus activating the airbags with varying intensity, depending on the severity of an accident.
In the event of an imminent rollover, the car’s rollover sensor activates both the curtain airbags and the belt latch tensioners. Indeed, this integration of the system with DSC Dynamic Stability Control guarantees appropriate function of the overall safety system in good time whenever necessary. And to avoid accidents from behind, finally, the new BMW X6 comes with BMW’s two-stage brake lights.

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Last Updated on Monday, 12 April 2010 14:17  
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