A motor-vehicle wheel support unit includes a first base body provided with attachments for connection to arms of a motor-vehicle suspension, and a second body for rotatably supporting a wheel hub, which is separate with respect to the first base body and is secured to the first base body in one of two different selectable mounting positions, which correspond to two different vertical positions, with reference to a condition of use, of an axis of the wheel hub with respect to the first base body. In this manner, a height of the vehicle from the ground can be modified by simply mounting said second body on the first body in one or the other of the two mounting positions. In each of the two mounting positions, the second body is rotated by 180° around an axis parallel to the wheel hub axis with respect to the other mounting position.

A vehicle is disclosed. The vehicle may include a base portion and a modular portion. The base portion may be a four wheel vehicle having an operator area with seating for at least two occupants in a side-by-side arrangement. The modular portion may be coupled to the base portion resulting in a six wheel vehicle. The wheels of the modular portion may be powered by an engine of the base portion.

A modular electronic damping control system is described and includes a damping component located at a vehicle suspension location. The modular electronic damping control system also includes a control system configured to control the damping component, and determine the type of damping component present. Also, the control system is configured to automatically tune a vehicle's suspension based on the type of damping component present, and automatically monitor the damping component and determine when a change has been made to the damping component so that the control system can then automatically re-tune the vehicle's suspension based on the change to the damping component.

A drive system of an electric vehicle is disclosed. The vehicle has an arrangement optimized for characteristics of a hydrogen electric truck so as to ensure an available space inside vehicle body frames, thereby allowing a battery, high-voltage electric parts, a hydrogen tank, and the like to be arranged inside the vehicle body frames and increasing space utilization in the vehicle. The drive system includes a motor configured to drive the vehicle, a reducer or a transmission connected to an output side of the motor so as to change a rotational speed of the motor, and a rear axle configured to transmit rotating power output from the reducer or the transmission to vehicle wheels. The motor and the reducer or the transmission together with the rear axle are mounted on a suspension.

A wheel suspension of a vehicle intended to extend in a transversal direction of the vehicle in association with first and second wheels arranged on opposite sides of the vehicle, comprising: a subframe unit provided with a set of attachment points for attachment of the subframe unit to a vehicle body structure, wherein the subframe unit comprises a cross member extending along the subframe unit in a transversal direction of the vehicle when the subframe unit is attached to the vehicle; at least a first link member arranged on each side of the subframe unit, wherein each first link member is arranged to connect a corresponding wheel or wheel supporting element with the subframe unit via a pivoted connection; and a spring arrangement arranged to act onto each of the first link members so as to provide for a spring suspension of the first and second wheels.

A mobile drive unit includes a pivot between the front chassis unit and the rear chassis unit, thereby diminishing the total height of the unit.

A utility vehicle includes at least one front ground-engaging member, at least one rear ground-engaging member, and a frame assembly extending along a longitudinal axis and supported by the at least one front ground-engaging member and the at least one rear ground-engaging member. The utility vehicle also includes an operator area supported by the frame assembly and a powertrain assembly supported by the frame assembly. The powertrain assembly includes at least an engine and a gearbox operably coupled to the engine. The utility vehicle also includes a cooling assembly fluidly coupled to at least the engine and supported by a front portion of the frame assembly. The cooling assembly includes a radiator with a lower portion positioned forward of an upper portion of the radiator.

A chassis system for commercial vehicles includes a trailing arm and a plunger piston which are connected or can be connected to one another via a connecting region, the connecting region having an adjusting device which includes an engagement element and a guide element, and it being possible for the engagement element to be moved relative to the guide element in such a way that a displacement, in particular a translational movement, of the plunger piston relative to the trailing arm is made possible.

A modular electronic damping control system is described and includes a damping component located at a vehicle suspension location. The modular electronic damping control system also includes a control system configured to control the damping component, and determine the type of damping component present. Also, the control system is configured to automatically tune a vehicle's suspension based on the type of damping component present, and automatically monitor the damping component and determine when a change has been made to the damping component so that the control system can then automatically re-tune the vehicle's suspension based on the change to the damping component.

An ATV is shown having a steering system comprised of a power steering unit having drive and driven pitman arms coupled to a drag link. The drive pitman arm is laterally offset from a vehicle centerline and is driven by the power steering unit. An alternate power steering system includes a pack and pinion subassembly coupled to a power steering motor, which then couples to steering arms of the ATV.