| 摘要 |
<p>A four wheel drive agricultural tractor, at least two of which wheels being steerable wheels, with two axes each provided with a differential and with final reduction gears downstream of the differential, in which each wheel is equipped with a braking element in an intermediate position between said differentials and said final reduction gears, the two pairs of braking elements of the right front and rear wheels and of the left front and rear wheels being operatively connected to respective actuating means which can be controlled independently, so that the independent braking action on the right or left front and rear wheels causes a lateral skidding of the wheels and thus a sharper turning trajectory of the vehicle than would be caused by the simple turning of the steerable wheels to right or to left.</p> |
