The disclosure relates to a method for determining object information relating to an object in an environment of a multi-part vehicle having at least one towing vehicle and at least one trailer and a control unit and vehicle associated with it, with at least one trailer camera being arranged on the trailer, having at least the following steps: capturing the environment with a trailer camera from a first position and, in dependence thereon, creating a first image having first pixels; changing the position of the trailer camera; capturing the environment with the trailer camera from a second position and creating a second image having second pixels; and, determining object information relating to an object in the captured environment.

A trailer including a trailer frame, and a trailer suspension including a first and second suspension assemblies and a pair of axles. Each of the first and second suspension assemblies includes a first spring including first and second spring ends, and a second spring including third and fourth spring ends. The second spring end of the first spring is positioned adjacent to the third spring end of the second spring, and the second and third spring ends are disposed between the first and fourth spring ends. The second spring end is rotatable about a first rotational axis that is fixed relative to the trailer frame. The third spring end is rotatable about a second rotational axis that is fixed relative to the trailer frame. The first spring end and the fourth spring end of the second spring are movable relative to the trailer frame.

A suspension assembly and method of use is provided. The suspension is for an axle on a trailer or other vehicle. The suspension assembly has a cross support member connected with or integrally formed with a hanger bracket at the first end of the cross support member. A trailing beam is connected to the hanger bracket. The trailing beam and a mount are coupled with a load air bag and a lift air bag, with the bags located on each respective side of a pivot axis for the trailing beam. This establishes a teeter-totter configuration of the suspension assembly allowing independent wheel travel side-to-side of the suspension assembly.

A trailer system and method of use for towing a load are provided. The trailer system include a trailer body supported by suspension arms on a trailer frame. A hoist mechanism having a winch device and a flexible connector can raise and lower the trailer body by swinging on the suspension arms, which maintain the trailer body in a substantially horizontal orientation during the swing. A modular wheel suspension can be attached to the trailer system.

A spring hanger assembly may be formed pieces shaped to increase the stiffness and strength. The spring hanger assembly may comprise separate pieces, such as an inner section and an outer section. The spring hanger assembly may be attached to a frame using fasteners or hucks.

A vehicle stabilization system including a frame; a wheel; a control arm connected to the frame and the wheel; a fluid spring connected to the frame and the control arm; a stabilizer connected to the frame and operable between a retracted and extended position; a reservoir; and a fluid manifold connected to the fluid spring and the chamber, fluidly coupling the spring interior and stabilizer chamber to the reservoir interior. A vehicle stabilization method including maintaining an orientation of the vehicle frame, coupling the frame to a support surface using a stabilizer by introducing a fluid to a chamber of the stabilizer, and retracting a wheel by reducing a quantity of fluid within a fluid spring coupling the wheel to the frame.

A bed height adjustment system for adjusting height of a bed of a vehicle including an air spring supporting the bed; a valve unit connected to an air tank and configured to adjust height of the air spring by supplying and discharging air; and a vehicle-control ECU provided with a dump-signal line and a return-signal line each connected to the valve unit. The valve unit adjusts the height of the air spring into a dump mode by inputting a signal of the dump-signal line, returns the height of the air spring into a normal mode by inputting a signal of the return-signal line, and maintains the dump mode or the normal mode when the signal is not input.

A bed height adjustment system for adjusting height of a bed of a vehicle includes: an air spring supporting the bed; a valve unit connected to an air tank and configured to adjust height of the air spring by supplying and discharging air; a relay provided with a dump-signal line and a return-signal line each connected to the valve unit; a pressure switch configured to be switched between an ON state and an OFF state based on whether air is supplied from the valve unit; and an indicator that becomes illuminated state when powered when the pressure switch is in the ON state and becomes non-illuminated state when the pressure switch is in the OFF state.

A suspension assembly includes an axle pivoting plate mounted to the frame at a first pivot point and rotationally fixed to the axle. Also included is a connection arm having a first end onto which the wheel is mounted and a second end for rotationally fixing the axle to the connection arm. An actuator is pivotally connected to the frame at a second pivot point, and is pivotally connected to the axle pivoting plate at a third pivot point. The first pivot point, the second pivot point and the third pivot point are all located below the lower surface of the side rail. When the actuator is extended, the axle pivoting plate pivots about the first pivot point causing the axle and connection arm to swing rearwardly and rotate, causing the wheel to move vertically with respect to the frame to displace the trailer to a lowered position.

The suspension system for a trailer is disclosed. The suspension system includes a torsion axle and an air spring operating to accommodate a wide range of a load weight applied to the trailer without any change in ride comfort. The air spring can be adjusted for its pressure inside to cover a heavy load weight, while the torsion axle can have relatively softer spring materials therein to cover a light (and zero) load weight. The air spring and the torsion axle are arranged in series to provide adequate suspension based on the load weight.