BMW has a new reason for pulling the attention of the customers. This time it is for the vital drivetrain instrument cluster. The German luxury car maker earlier have always have had more than one reasons to bring its fans to showrooms. Its feat includes latest technology in engines, transmissions, chassis controls and cockpit infotainment systems.
The differential is a compact gearbox which is housed in the recesses between an automobile’s drive wheels. It helps in making a smooth delivery of engine power while going around in turns. Its array of gears and shafts makes it possible for the left and right wheels to spin at different speeds even though they are geared together on the same axle.
The rear differential at the heart of the BMW xDrive all-wheel drive system used in the X6, X6M and X5M goes beyond maintaining forward motion in adverse weather. The new BMW xDrive is smart enough to lend a helping hand in extreme cornering manoeuvers.
The version of xDrive in these BMW cars includes a capability called Dynamic Performance Control whose purpose is to contribute what engineers call a ‘yaw torque’. Dynamic Performance Control pitches in once the hardest-working tyres have reached their traction limits. This added yaw torque is generated at the rear. By forcing the outside rear tyre to push forward while the inside-rear tyre pulls back a bit, a helpful turning force is generated about the imaginary vertical axis.
What accomplishes this execution is an ingenious collection of clutches and gears inside the differential. The beauty of this arrangement is that it works independently of the BMW’s propulsion system.
Whether the driver is accelerating, braking or coasting through a tight turn, this new differential is always on call to add a yaw-torque contribution.
The differential is a compact gearbox which is housed in the recesses between an automobile’s drive wheels. It helps in making a smooth delivery of engine power while going around in turns. Its array of gears and shafts makes it possible for the left and right wheels to spin at different speeds even though they are geared together on the same axle.
The rear differential at the heart of the BMW xDrive all-wheel drive system used in the X6, X6M and X5M goes beyond maintaining forward motion in adverse weather. The new BMW xDrive is smart enough to lend a helping hand in extreme cornering manoeuvers.
The version of xDrive in these BMW cars includes a capability called Dynamic Performance Control whose purpose is to contribute what engineers call a ‘yaw torque’. Dynamic Performance Control pitches in once the hardest-working tyres have reached their traction limits. This added yaw torque is generated at the rear. By forcing the outside rear tyre to push forward while the inside-rear tyre pulls back a bit, a helpful turning force is generated about the imaginary vertical axis.
What accomplishes this execution is an ingenious collection of clutches and gears inside the differential. The beauty of this arrangement is that it works independently of the BMW’s propulsion system.
Whether the driver is accelerating, braking or coasting through a tight turn, this new differential is always on call to add a yaw-torque contribution.
Labels: BMW, BMW-xDrive, Differential, Dynamic-Performance-Control
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