Bei einem einachsigen Fahrzeug (1, 1.1), insbesondere für landwirtschaftliche Arbeiten, wie Mähen, Kreiseln und/oder Schwaden miteinem breiten Arbeitsgerät (2),einer ersten Radeinheit (3) undeiner zweiten Radeinheit (4),soll das Fahrzeug ( 1, 1.1) eine Breite (b) grösser und/oder gleich 3,5 m aufweisen.The vehicle e.g. motor mower (1), has two wheel units (3, 4) i.e. base machines, arranged at an end side of the vehicle, where width (b) of the vehicle is greater than or equal to 3.5 m. The wheel units are connected with working equipments i.e. sickle bars (2) to drive the working equipments. The working equipments are formed as two equal or similar partial working equipments. The wheel units drive the partial working equipments. A control device receives data, stores a flow program and controls of the vehicle based on the flow program and the data.