An electric motor including: a hub assembly defining a rotational axis; a magnetic rotor assembly; a first coil stator assembly; a second coil stator assembly; and a system of rotor bearings rotatably supporting each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly on the hub assembly so that each of the magnetic rotor assembly, the first coil stator assembly, and the second coil stator assembly are rotatable about the rotational axis independently of each other.

A wheelchair suspension includes a frame, a drive assembly pivot arm, a drive assembly, a front caster pivot arm, a front caster, and a spring and shock absorbing assembly. The drive assembly pivot arm is pivotally connected to the frame. The drive assembly includes a drive wheel and is mounted to the drive assembly pivot arm. The front caster pivot arm is pivotally mounted to the frame and coupled to the drive assembly pivot arm. The front caster is coupled to the at least one front caster pivot arm. The spring and shock absorbing assembly is pivotally connected to the drive assembly pivot arm at a first pivotal connection and pivotally connected to the front caster pivot arm at a second pivotal connection. The first and second pivotal connections are positioned such that a majority of the force applied by the spring and shock absorbing assembly is applied to the drive wheel when the suspension is on a flat, horizontal support surface.

A steered wheel support structure of a vehicle, includes a knuckle member which supports an axle of a steered wheel and a support member which is coupled to a vehicle body and supports the knuckle member from a first side in a vehicle width direction in such a manner that the knuckle member is angularly displaceable around a steering axis line, the knuckle member includes: an axle support section which supports the axle; and two supported sections disposed on both sides in the upward and downward direction, of at least a portion of the axle support section, the two supported sections facing each other and being apart from each other in the upward and downward direction, and the two supported sections are supported by the support member in such a manner that the two supported sections are angularly displaceable around the steering axis line relative to the support member.

A steerable suspension system for a vehicle, especially useful in a self-propelled vehicle that can include a worker-platform and optionally include pick-up, transport, and delivery apparatus for produce bins. The steerable suspension system includes independent pairs of parallel arms, each pair coupled to a single steerable drive-wheel, serving as both a suspension and as a shock absorber, with the parallel-acting pair of arms maintaining the steering-leg in its substantially vertical position relative to a ground surface. This steerable suspension system aids the steerable movement and suspension of the vehicle, while increasing safety and maneuverability, and helps to reduce the number of workers required to operate the vehicle.

A vehicle may include a frame structure, four wheels, and four independent suspension systems coupled to the frame structure and configured to support the wheels relative to the frame structure. Each suspension system may include a suspension arm movably coupling a respective wheel to the frame structure, a torsion bar coupled to the suspension arm and imparting a spring force on the suspension arm, a preload arm coupled to the torsion bar, and a preload adjustment motor coupled to the preload arm and configured to rotate the torsion bar to adjust a preload on the torsion bar.

A mounting assembly for a suspension and wheel assembly of a vehicle can include a pair of frame members, a final drive assembly, and a pair of suspension brackets. The frame members can be spaced apart from each other in a transverse direction of the vehicle and can extend upwardly along a vertical direction of the vehicle. The final drive assembly can extend between the frame members. Each of the suspension brackets can connect a respective suspension member to a respective one of the frame members. The suspension brackets can be connected to the frame members and to the final drive assembly such that a lateral load input to one of the suspension brackets is transferred to a different one of the suspension brackets through the final drive housing, and then to the respective one of the frame members to which the different one of the suspension brackets is connected.

This application discloses a mobile robot and a method for controlling motion of the mobile robot. The mobile robot includes a first wheel part having a telescopic leg portion, a second wheel part having a telescopic leg portion, and a base part connected to the first wheel part and the second wheel part. The method includes: controlling the first wheel part and the second wheel part to be in a standing balance state, wherein the base part is parallel to a horizontal reference plane in the standing balance state; and controlling the mobile robot to perform bipedal-like motion based on the standing balance state, wherein, during the bipedal-like motion, the first wheel part and the second wheel part alternately touch the ground while the base part obliquely swinging.

The saddle-riding motor vehicle (1; 107; 207) comprises a rear driving wheel (5; 105; 205) and a front steered wheel (7; 107; 207). The front steered wheel (7; 107; 207X, 207Y) is connected to a rotatable arm (9; 109; 209X, 209Y) provided with a rotary motion about a steering axis (A-A). A wheel support (37; 137) is connected to the rotatable arm (9; 109; 209) with the interposition of a suspension (17; 117; 217X, 217Y) comprising a shock absorber (22; 122). The suspension (17; 117) comprises a Watt four-bar linkage.

A suspension for a vehicle is provided. The suspension includes, for example, a frame, at least one drive assembly and at least one caster pivot arm. The at least one drive assembly and the at least one caster pivot arm are pivotally connected to the frame at a common pivot axis such that the drive assembly and the front caster pivot arm are pivotable relative to one another.

Embodiments disclose systems and methods for a vehicle with an articulating suspension exploration platform with shock dampening. More specifically, embodiments include a passive articulating of forces by mirroring and chaining bar linkages.