A work vehicle includes a chassis. An independent linear suspension system couples to the chassis. The independent linear suspension system includes a driveshaft that couples to the chassis and to a transmission. A wheel hub couples to the driveshaft and rotates a wheel in response to rotation of the driveshaft. A spindle couples to the wheel hub. A spindle carrier couples to the spindle. The spindle carrier defines a first aperture and a second aperture. A first pin extends through the first aperture. A second pin extends through the second aperture. The first pin and the second pin block rotation of the spindle carrier. The spindle carrier moves linearly along the first pin and the second pin.

A work vehicle includes a chassis. An independent linear suspension system couples to the chassis. The independent linear suspension system includes a driveshaft that couples to the chassis and to a transmission. A wheel hub couples to the driveshaft and rotates a wheel in response to rotation of the driveshaft. A spindle couples to the wheel hub. A spindle carrier couples to the spindle. The spindle carrier defines a first aperture and a second aperture. A first pin extends through the first aperture. A second pin extends through the second aperture. The first pin and the second pin block rotation of the spindle carrier. The spindle carrier moves linearly along the first pin and the second pin.

Herein a self-propelled robotic lawnmower (1) Is disclosed comprising a lawnmower chassis (3.1, 3.2) and wheels (5.1-5.4) arranged at the lawnmower chassis (3.1, 3.2). The wheels (5.1-5.4) are arranged to support the lawnmower chassis (3.1, 3.2) during operation of the lawnmower (1). The wheels (5.1-5.4) comprise at least a first wheel (5,1) and a second wheel (S.2), wherein the first and second wheels (5.1, S.2) are arranged at opposite lateral sides (6.1, 6.2) of the lawnmower chassis (3.1, 3.2). At least the first and second wheels (5.1, 5.2) are arranged at the lawnmower chassis (3.1, 3.2) with a negative camber angle (a).

Herein a self-propelled robotic lawnmower (1) Is disclosed comprising a lawnmower chassis (3.1, 3.2) and wheels (5.1-5.4) arranged at the lawnmower chassis (3.1, 3.2). The wheels (5.1-5.4) are arranged to support the lawnmower chassis (3.1, 3.2) during operation of the lawnmower (1). The wheels (5.1-5.4) comprise at least a first wheel (5,1) and a second wheel (S.2), wherein the first and second wheels (5.1, S.2) are arranged at opposite lateral sides (6.1, 6.2) of the lawnmower chassis (3.1, 3.2). At least the first and second wheels (5.1, 5.2) are arranged at the lawnmower chassis (3.1, 3.2) with a negative camber angle (a).

A vehicle includes an assembly for providing suspension and steering for a wheel. The assembly includes an inner knuckle and a steering knuckle. The inner knuckle is coupled to an upper control arm at an upper joint and a lower control arm at a lower joint, forming a double wishbone suspension. The upper joint and the lower joint define a first axis. The steering knuckle is coupled to the inner knuckle at a steering joint that forms or otherwise defines a kingpin axis. The steering joint includes a revolute joint, a ball joint, or both. The steering knuckle is configured to be engaged with a tie-rod coupled to a steering mechanism. The kingpin axis is nearer a center of the wheel than the first axis, thus preventing or otherwise limiting torque steer. The upper and lower joints are constrained from significant steering rotation by suitable bushings, anti-steer arms, or both.

A rear suspension for a three-wheeled reverse trike includes a front lever arm pivotably affixed to a frame pivotable about a front lever arm pivot axis. A slider is translatably attached to the front lever arm. A first pushrod is pivotably connected at a first end to the slider and pivotably connected at a second end to at least one of a front upper or lower control arms for the front wheels. A rear lever arm is pivotably affixed to the frame and pivotable about a rear lever arm pivot axis, the rear lever arm extending to a rear lever arm distal end. A rod pivotably connects the front and lever arms. A first pivotable end of the rear upper control arm is pivotably connected to the rear lever arm distal end, and a second pivotable end of the rear upper control arm is pivotably connected to a rear spindle.

An outdoor power equipment unit includes independent suspension system having a frame, a first wheel assembly, a second wheel assembly, a first laterally-extending suspension arm pair, and a second laterally-extending suspension arm pair. The first wheel assembly includes a first wheel and a first side suspension arm. The first side suspension arm is pivotably coupled at a first end to a first side structural member and is fixedly coupled at a second opposite end to a joint of the first wheel assembly. The second wheel assembly is arranged similarly to the first wheel assembly. Both the first laterally-extending suspension arm pair and the second laterally-extending suspension arm pair are configured to independently pivot about the frame to be vertically displaceable relative to the frame.

An outdoor power equipment unit includes independent suspension system having a frame, a first wheel assembly, a second wheel assembly, a first laterally-extending suspension arm pair, and a second laterally-extending suspension arm pair. The first wheel assembly includes a first wheel and a first side suspension arm. The first side suspension arm is pivotably coupled at a first end to a first side structural member and is fixedly coupled at a second opposite end to a joint of the first wheel assembly. The second wheel assembly is arranged similarly to the first wheel assembly. Both the first laterally-extending suspension arm pair and the second laterally-extending suspension arm pair are configured to independently pivot about the frame to be vertically displaceable relative to the frame.

A vehicle including a frame; a front left suspension assembly with a front left wheel; a front right suspension assembly with a front right wheel; a front gear train; a motor; shafts connected between the front wheels and the front gear train. Each front suspension assembly including a knuckle including: a first portion connected to a wheel hub and including a first ball joint, and a second portion extending upward from the first portion and including a second ball joint; a lower A-arm connected to the first ball joint; an upper A-arm connected to the second ball joint; the second ball joint being distanced from the wheel axis by a distance greater than the inner rim radius; and a shock assembly connected to the lower A-arm and the frame, the shafts passing below the ball joint of the shock absorber assembly which is vertically higher than the shaft.

A vehicle suspension system smoothly changes a vehicle posture with respect to a steering force and a steering angle by minimizing a kinematic roll at an initial turning stage, thereby allowing a driver to obtain the sensation of maneuvering the vehicle well. The suspension system includes a front suspension having geometry satisfying that a caster angle is +3° to +5°, a caster trail is +20 to +30 mm, an intersection point between a kingpin axis and ground is located on an inner side in a vehicle width direction of a center of a tire contact patch, and an anhedral angle of a lower arm is +2.8° to +7.2°. A rear suspension includes five links and has geometry satisfying that a virtual kingpin axis extends near the center of a tire contact patch of a rear wheel assembly and extends vertically at −2° to 0°.