Patent ID: 6394246
Filing Date: 2002-05-28
Classification: B60K,F16D,F16H,Y10T

Abstract:
A process of controlling an axle drive including the steps of1) distributing torque from a propulsion shaft to two axle shafts (13, 14) having a coupling carrier (12) which is driveable by the propulsion shaft and rotatably supported in an axle drive housing (11), and two controllable friction couplings (25, 26) arranged in the coupling carrier (12) 2) engageably connecting and driving the axle shafts (13, 14), with first friction plates of each friction coupling (25, 26) being non-rotatably connected to the coupling carrier (12) and with second friction plates of each friction coupling (25, 26) being non-rotatably connected to the respective axle shaft (13, 14), with the actuating devices (31, 32) each comprising an axially displaceable piston (37, 38) acting on the friction couplings (25, 26) and 3) providing pump assemblies (33, 34), which as a function of the relative rotation between the coupling carrier (12) and the respective axle shaft (13, 14), build up a fluid pressure which acts on the respective piston (37, 38), wherein: when said two axle shafts (13, 14) both rotate in the same direction relative to said coupling carrier (12), and two pump assemblies (33, 34) function autonomously independently of one another, and when said two axle shafts (13, 14) rotate in opposite directions relative to the coupling carrier (12), said two pump assemblies (33, 34) are shut down.