Abstract: A method for the diagnosis of at least one vehicle component of a motor vehicle involves a) generating a diagnostic script for a diagnostic device of a motor vehicle in a diagnostic script provision unit formed separately from the diagnostic device, b) transferring the diagnostic script by means of a transfer device to the diagnostic device of the motor vehicle, c) authenticating an implementation authorization for the diagnostic script, and d) implementing the diagnostic script in the diagnostic device. Step d) is only implemented in the case of a successful authentication according to step b).

Abstract: The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, 24) that passes through the respective cradle (4, 23). The respective cradle (4, 23) and the corresponding guide rod(s) (5, 24) form working chambers (A11, A12, A21, A22) of a piston-cylinder system, whereby each respective guide rod (5, 24) has at least one channel (KA11, KA12, KA21, KA22), each terminating in the vicinity of a working chamber (A11, A12, A21, A22). The cradle or cradles (4, 23) adjust the steerable wheels (1, 20) directly or by means of steering tie rods (2, 21).

Abstract: A steering system with a steering adjustment unit, based on the “steer by wire” concept, with an additional system for an automatic emergency stopping maneuver is provided. In situations that cannot be controlled by the driver, preset data from a preset or storage arrangement are transmitted to a braking system and a steering adjustment unit, with the vehicle then being braked and steered according to the preset data.

Abstract: A steering system for a motor vehicle, comprising a shaft that is rotatably mounted on the chassis of the vehicle, a carriage that is connected to the shaft via a threaded mechanism so as to be displaceable along the shaft, two tie rods secured to the carriage and extending to wheels of an axle of the vehicle, and a bar that is secured to the chassis of the vehicle and extends parallel to the shaft, wherein the bar extends through the carriage, which is displaceable along the bar.

Abstract: The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, 24) that passes through the respective cradle (4, 23). The respective cradle (4, 23) and the corresponding guide rod(s) (5, 24) form working chambers (A11, A12, A21, A22) of a piston-cylinder system, whereby each respective guide rod (5, 24) has at least one channel (KA11, KA12, KA21, KA22), each terminating in the vicinity of a working chamber (A11, A12, A21, A22). The cradle or cradles (4, 23) adjust the steerable wheels (1, 20) directly or by means of steering tie rods (2, 21).

Abstract: A nontrack-bound vehicle with arbitrarily steerable front wheels includes an additional rear-wheel steering system that operates automatically or may be switched to automatic operation and controls or regulates the steering angle of the rear wheels as a function of the steering angle of the front wheels and of further parameters. The additional rear-wheel steering system switches in a parameter-dependent manner between a drive-away mode and a normal mode to improve maneuverability and to reduce the swinging out of the rear during the drive-away mode. In the drive-away mode, the steering angle of the rear wheels is controlled or regulated so that the rear wheels are not adjusted beyond a steering angle assumed when the vehicle last halted.

Abstract: An axle assembly with level control, in particular with a pneumatic suspension. Changes in level which may, if appropriate, become necessary on both vehicle sides take place incrementally and with continuous alternation between the vehicle sides, i.e. the left-hand and right-hand vehicle sides are alternately raised or lowered.

Abstract: A steering device for steering the wheels of a steering axle of a motor vehicle having at least three axles. The steering axle is designed as a trailing or leading axle, with a hydraulic arrangement which has an actuating assembly for the steering actuation of the wheels, and a regulating/control valve for pressure to act upon hydraulic connections of the actuating assembly and a clearing valve, by means of which the steering device can be changed over between normal operation and emergency operation. In the emergency operation, the hydraulic connections of the actuating assembly are connected to one another. Four throttle elements are provided. The first is arranged upstream and the second downstream of a connection point of the clearing valve to a first hydraulic line connecting the regulating/ control valve and actuating assembly.

Abstract: A display device, in particular a fault display, predominantly for systems of a motor vehicle, is provided wherein, as a rule, there is a display only after an operational shut-down of a respective system occurs or when the motor vehicle is switched off.

Abstract: A method determines an instantaneously optimum pressure of brakes of a trailer connected to a tractor. Regulation to a desired value of a coupling force existing between the tractor and the trailer is performed by varying the braking pressure of the trailer. A target value, in a braking process, of the pressure of the trailer brakes is determined at least indirectly from the assignment of pressure of the trailer brakes during at least one preceding braking process in which the coupling force has been set equal to its desired value.