An unmanned autonomous vehicle (1) for displacing feed lying on a floor substantially sidewardly, which vehicle is provided with two wheels that are separately drivable by separate drive means, a distance determining device (6) for determining the distance from the vehicle to a wall portion, an orientation determining device (9) for determining the orientation of the centre line (14) of the vehicle relative to the wall portion, a torque difference determining device (10) for determining the torque difference between the wheels, a control unit (11) for controlling the vehicle and moving it in a direction of travel, and feed displacing means (12) for displacing feed substantially sidewardly, the control unit (11) being programmed in such a way that during operation the vehicle will maintain a distance determined by the distance determining device (6) to the wall portion, which distance is greater than or equal to a pre-adjusted minimum distance to the wall portion, that during operation the centre line (14) of the vehicle will maintain an orientation determined by the orientation determining device (9) relative to the wall portion, which orientation is at least almost equal to a pre-adjusted orientation, and that during operation the drivable wheels (4', 5') of the vehicle will show a torque difference determined by the torque difference determining device (10), which difference is smaller than or equal to a pre-adjusted maximum torque.
