The invention relates to a method for controlling a vehicle combination (1) consisting of a tractor vehicle (1a) and a semitrailer (1b), wherein at least one support winch (16) having a leg member (16b) and a support foot (16c) fastened to the latter on the bottom side is arranged on the semitrailer (1b), wherein the leg member (16b) can be adjusted between an extended position (S1) and a retracted position, wherein the semitrailer (1b) is coupled to the tractor vehicle (1a) during a coupling operation, and/or the semitrailer (1b) is decoupled from the tractor vehicle (1a) during a decoupling operation. According to the invention, it is provided that the leg member (16b) in question is adjusted in automated fashion between an intermediate position and the extended position (S1), or vice versa, while the vehicle combination (1) is at a standstill and is in the parking position (PA), and/or the leg member (16b) in question is adjusted in automated fashion between the intermediate position (SZ) and the retracted position, or vice versa, while the semitrailer (1b) during the coupling process (AV) is moved away from the parking position (PA) or during the decoupling process (BV) is moved in the direction of the parking position (PA), in particular while the vehicle combination (1) is not at a standstill.

A sensor controlled system includes a ramp docking sensor mountable to a vehicle's rear end and configured to fulfill the functions required for assisting docking of a vehicle to a loading ramp. The ramp docking sensor is further configured to determine a vertical distance of the ramp docking sensor relative to a ground level and to determine a vertical distance between the ground level and a loading ramp sill of the loading ramp. In this system, the ramp docking sensor can also be utilized for height-detection of a cargo hold floor with respect to a ground level without requiring specified sensors for height adjustments.

A motor control method includes a determination step of determining whether a contact portion exists, which is a portion where the screw and the nut member are in contact with each other at a location different from a mating portion, when the motor is energized to move the nut member in a first direction, and when the contact portion is determined to exist in the determination step, a return step of energizing the motor to move the nut member in a second direction opposite to the first direction until the contact portion no longer exists.

Implementations extend to a height adjustable single axle trailer. The trailer can be configured for efficient loading, transportation, and unloading of vehicles, such as side-by-side vehicles. In one implementation, the trailer's T-shape frame includes a longitudinal support with a latitudinal support (axle) affixed to the longitudinal support's rear end. The trailer further includes a hydraulic pump, a battery, and a remote control to operate the raising and lowering of the trailer. The trailer also features first and second suspension arms connected to the latitudinal support, each incorporating lower and upper housings, hydraulic rams, and springs housed within the lower and upper housings, thereby enabling flexible movement of the latitudinal support of the trailer. The hydraulic rams can be controlled to transition the latitudinal support between a lower loading position and an upper transport position.