Volvo Trucks with automatic traction control
Volvo Trucks is the first truck manufacturer in the world to offer automatic engagement of all wheel drive on construction trucks. The Automatic Traction Control function activates the front wheel drive when the rear wheels lose traction on slippery or soft ground. The driver enjoys improved manoeuvrability, and the owner benefits from lower fuel consumption and less wear and tear on the truck. Volvo Automatic Traction Control, which has now become standard in the Volvo FMX with driven front axle, is already used by Volvo Construction Equipment in their articulated haulers. The solution consists of software connected to the wheel speed sensors which detect and control wheel drive. When a rear wheel starts to slip, the power moves automatically to the front wheels without the truck losing torque or speed. A dog clutch activates the front-wheel drive in just half a second. If the driver encounters particularly rough ground, then it is possible to manually lock the other differentials at both front and rear.