A dual-mode active rear-wheel steering device, including: a steering motor, a main shaft, an intermediate gear, a transmission gear, a planetary gear coupling mechanism and a mode switching assembly. An output end of the steering motor is provided with a first input gear. An end of the main shaft drives a first rear wheel to rotate by a two-stage gear transmission system and a first rear-wheel motion conversion mechanism, and the other end of the main shaft drives a second rear wheel to rotate by the planetary gear coupling mechanism and a second rear-wheel motion conversion mechanism. The intermediate gear, the transmission gear and a sun gear of the planetary gear coupling mechanism are provided on the main shaft. The intermediate gear meshes with the first input gear.

Embodiments relate to an off-road vehicle comprising a frame, including at least one cargo box support member, a suspension movably coupled to the frame, a passenger compartment, an engine, a transmission operatively coupled to the engine, and a cargo box. The cargo box includes a floor and a plurality of upwardly extending sidewalls, wherein at least a portion of the cargo box floor extends over the at least one cargo box support member and wherein the cargo box is removably coupled to the at least one cargo box support members and is removable from the off-road vehicle via the removal of fewer than eight fasteners.

Integrated multiple actuator electro-hydraulic systems as well as their methods of use are described. Depending on the particular application, the integrated electro-hydraulic systems may exhibit different frequency responses and/or may be integrated into a single combined unit.

A three-row wheel vehicle having front, center and rear wheels has laterally spaced front pivot links each pivotably connected at a middle to a vehicle body, laterally spaced swing arms each swingably connected to a front end of the front pivot link and rotatably supports the front wheel at a lower end, laterally spaced rear pivot links each pivotably connected to the vehicle body at a middle and rotatably supports the rear wheel at a rear end, laterally spaced force transmission mechanisms each configured to convert a rearward force transmitted from the front wheel to the swing arm into an upward force and transmit the upward force to the front pivot link on a front side of the middle, and laterally spaced connecting links each pivotably attached to a rear end of the front pivot link and a front end of the rear pivot link.

Integrated multiple actuator electro-hydraulic systems as well as their methods of use are described. Depending on the particular application, the integrated electro-hydraulic systems may exhibit different frequency responses and/or may be integrated into a single combined unit.

An off-road vehicle includes a frame, a front suspension, and a rear suspension. In some examples of the off-road vehicle, the rear suspension includes trailing arms with are pivotally attached to the frame rearward of an operator area. Further, the frame can include a front subframe assembly and a rear subframe assembly which are easily removable from the main frame of the vehicle to permit access to various components of the off-road vehicle.

A vehicle includes a vehicle structure, a wheel assembly, a control arm that is connected to the wheel assembly and the vehicle structure by pivot joints, and an active suspension actuator that is connected to the control arm and to the vehicle structure. The vehicle also includes an air reservoir that includes a first port and an air spring that supports the vehicle structure with respect to the control arm and is able to compress and expand. The air spring includes an internal working volume, the air spring includes a second port that is in fluid communication with the internal working volume, and the second port is connected to the first port to allow exchange of air between the internal working volume of the air spring and the air reservoir in response to compression and expansion of the air spring.

A caster angle adjustment device for a vehicle includes a variable lower arm connected to multiple points of a subframe via connection parts and connected to a steering knuckle at a single point via one of the connection pails, any one of the connection pails connected to the subframe being movably connected to the subframe to be changed in shape, and an actuator provided in the subframe and connected to the connection part movably connected to the subframe and configured to move a position of the connection part, so that a position of the steering knuckle is moved through the shape change of the variable lower arm to change a caster angle.

A suspension and drive mechanism for a steerable wheel of a vehicle, comprising a wheel support assembly supporting the wheel having a rolling axis and a wheel width defined by inner and outer wheel edges. Front and rear upper control arms coupled between a chassis and the wheel support assembly, and front and rear lower control arms between the chassis and the wheel support assembly. The front and rear upper control arms being coupled to the wheel support assembly above the rolling axis and inboard of the wheel inner edge, and front and rear lower control arms being coupled to the wheel support assembly below the rolling axis and inboard of the wheel inner edge. The control arms are angled so as to establish a virtual steering pivot axis for the wheel support assembly, the virtual steering pivot axis extending transverse of the rolling axis and located within the width of the wheel. The virtual steering pivot axis location varies according to a steering angle of the wheel support assembly as controlled by the steering arm. An electric drive unit arranged within the wheel for driving thereof, and at least one of the virtual pivots that lie on said virtual steering pivot axis lies within the volume occupied by the electric drive unit during at least one point in the steering travel of said wheel.

A vehicle axle with a centrally arranged drive unit and a wheel suspension which has a wheel carrier for holding a wheel, a lower wheel-guiding control arm for the articulated connection of the carrier to a vehicle body, a camber link that connects the carrier to the body and steering unit for steering the wheel. The carrier and control arm are connected directly, in a first connection area, and indirectly via an integral link, in a second connection area, so that the carrier can pivot relative to the control arm about a steering axis. The control arm can be connected to the body in forward and rear areas, and has a rotational axis that extends obliquely relative to the longitudinal direction of the vehicle. All connection areas of the control arm are positioned outside the centrally arranged drive unit relative to the transverse direction of the vehicle.