Today most drivers activate the front-wheel drive or diff lock
before the terrain becomes difficult, in order to avoid a standstill.
With Automatic Traction Control,
the driver can benefit from better manoeuvrability
right up until the road conditions get worse.
When the sensors on one of the rear wheels
detect that it's starting to lose traction,
the all-wheel drive is instantly engaged.
A dog clutch then transfers the power to the driven front axle
and the truck can continue without dropping either torque or speed.
The driven front axle then remains activated
until the driver releases the throttle pedal.