Patent ID: 7748488

Claim:
A steering system for a utility vehicle, the vehicle having a front axle, a rear axle, a pair of front wheels, a pair of rear wheels, an internal combustion engine driving a mechanical drive for driving the rear wheels on the rear axle, so that the internal combustion engine is drivingly connected to the rear wheels through only purely mechanical components, and so that all the drive components between the internal combustion engine and the rear wheels are purely mechanical, and a pair of electric drives, each for driving one of the front wheels, and a controller for controlling the electric drives and causing each electric drive to transmit a defined torque to a corresponding one of the front wheels, wherein: when the vehicle is turning, the vehicle having a radial outer front wheel and a radially inner front wheel, the electric drive supplying a greater torque to the outer front wheel and supplying a lesser torque to the inner front wheel, wherein: torque transmitted by the electric drive is computed as a function of a difference between a mean value of peripheral speeds of the rear wheels and the peripheral speed of the driven front wheel.