Yaw control

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A yaw control (also known as Active Yaw Control ) helps the driver assistance system significantly to a more dynamic driving behavior. It is an intelligent drive system that sits on the drive axle .

Conventional alternatives

Open differential

A conventional differential gear enables cornering by allowing different speeds of the two drive wheels. It transfers the drive torque equally to both wheels. But this also means that the bike with the better grip only has as much traction as the one that is on a smooth surface or that is lightly loaded when cornering.

Differential lock

A differential lock can be used to increase traction and improve driving dynamics, which partially connects the two drive wheels with one another via friction. In this way, traction can be transferred to the bike with better grip when the other bike has little grip. However, since the two drive wheels are locked to a certain extent, cornering is made difficult and the vehicle tends to understeer. Experienced sports drivers can avoid the tendency to understeer by 'throwing the vehicle into the curve' and accelerating quite early. Since the wheel on the inside of the curve is relieved when cornering, the wheel on the outside of the curve is driven more strongly when accelerating with the differential lock, thereby generating a yaw moment directed into the curve. However, this driving technique cannot normally be used on public roads.

Controlled differential lock

With adjustable differential locks, the cornering ability of an open differential can be combined with the improved traction of a limited-slip differential. Thanks to an intelligent logic that takes into account the respective driving situation, the differential is only closed to the extent that the driving situation requires. Nevertheless, a regulated differential lock can only make the vehicle more willing to turn in very specific exceptional situations.

Active yaw control system

The particular advantage of active yaw control ( Active Yaw Control ) is that such a system can generate the desired yaw moment in every driving situation, even when the clutch is depressed, as it transfers the braking moment on one side as drive moment to the other. It can therefore have an agile or stabilizing effect, depending on requirements.