Abstract: The invention relates to a connection arrangement for a trailer vehicle and to a trailer vehicle. The connection arrangement (1a, 1b, 1c, 1d) according to the invention for a trailer vehicle (14a, 14b, 14c) comprises at least two connections (2, 3, 4, 5) of the following connections (2, 3, 4, 5) suitable for connecting on the tractor side: a) a first electrical connection (2) for a brake system (25); b) a second electrical connection (3) for a lighting system, c) a first pneumatic connection (4) for a brake line, d) a second pneumatic connection (5) for a reservoir line, and at least two lines (9, 10) for connecting one connection (2, 3, 4, 5) each to a trailer-side component, wherein the at least two lines (9, 10) are consolidated into a common cable harness (22) at least in sections.

Abstract: The invention relates to a method and a device for assessing the compatibility of braking systems of a vehicle combination comprising a tractor and a trailer. According to the invention, an, applied braking power (Wa) for a braking process of the trailer is determined, and a required braking power for the braking process (Wb) of the trailer is determined.

Abstract: An apparatus and method for effecting wheelbase adjustment for utility vehicles having one or more axles with wheels, includes one or more adjustment mechanisms to which compressed air can be applied. The adjustment mechanism(s) adjust at least one of the axles in relation to the body of the vehicle. A pressure sensor measures the pressure of the compressed air in the adjustment mechanism(s) and generates corresponding pressure signals. A pulse-controlled valve or, alternatively, a spring-return valve, is employed to optionally feed the compressed air into the adjustment mechanism(s) and discharge the compressed air from the adjustment mechanism(s).