Abstract: In a motor vehicle with one or several driven axles, as well as with corresponding equalizing gears and/or power dividers for the compensation of differences in the speeds of the wheels, the spinning of wheels and/or axles is avoided through the use of braking devices for the braking of individual wheels, in conjunction with locking devices for the above-mentioned equalizing gears and/or power dividers. Upon reaching a predetermined speed difference value between the drive axles, a reduction of this speed difference is first brought about by actuation of the corresponding braking devices. When a predetermined approach tendency of the wheel speeds to each other is reached, a synchronization of the wheels is obtained by actuating the appropriate locking device. In this manner, a synchronization of rotating parts is achieved during any speed behavior of the rotating parts, without damage to parts of the motor vehicle.

Abstract: The present invention teaches an activation apparatus for a differential pawl. Such activation apparatus is designed to prevent damage to components of the differential pawl and/or of the drive train resulting from operator error. When a drive wheel slips, a monitoring means acquires a slip signal; and when a wheel slip signal is present, an interrupt means, which can be provided as a switching apparatus, prevents the preassurization of a pressure-medium-operated actuator of the activation mechanism.

Abstract: An automatic activation apparatus for a differential pawl which is independent of intervention by an operator of a vehicle, the invention controls the energy supply to the actuator by means of a control logic with two signal inputs. The control logic is fed a wheel slip signal directly at one signal input, and via a break-delay timing element at its other signal input. The control logic is thereby designed so that, by the excitation of both signal inputs, it switches into a standby position and then into its active position only upon the excitation of its signal input connected with the timing element.

Abstract: An automatic activation apparatus for a differential pawl which is independent of intervention by an operator of a vehicle, the invention controls the energy supply to the actuator by means of a control logic with two signal inputs. The control logic is fed a wheel slip signal directly at one signal input, and via a break-delay timing element at its other signal input. The control logic is thereby designed so that, by the excitation of both signal inputs, it switches into a standby position and then into its active position only upon the excitation of its signal input connected with the timing element.

Abstract: The present invention teaches an activation apparatus for a differential pawl. Such activation apparatus is designed to prevent damage to components of the differential pawl and/or of the drive train resulting from operator error. According to the invention, when a drive wheel slips, a first apparatus acquires a slip signal; and when a slip signal is present, a second apparatus prevents the pressurization of a pressure-medium-operated actuator apparatus of the activation apparatus.