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.

An active chassis for a two-track vehicle provided with a wheel suspension. A wheel carrier carrying a vehicle wheel is connected via connecting rod to the vehicle structure. The camber behavior of the vehicle wheel is defined by a mechanical camber curve of the vehicle wheels that is predetermined by the rigid kinematics of the connected rods, which defines a mechanical adjustment of the camber angle of the vehicle wheel depending on a spring path of the vehicle structure, and which is controllable with an actuator controller which can be controlled by a chassis control device.

An active chassis for a two-track vehicle provided with a wheel suspension. A wheel carrier carrying a vehicle wheel is connected via connecting rod to the vehicle structure. The camber behavior of the vehicle wheel is defined by a mechanical camber curve of the vehicle wheels that is predetermined by the rigid kinematics of the connected rods, which defines a mechanical adjustment of the camber angle of the vehicle wheel depending on a spring path of the vehicle structure, and which is controllable with an actuator controller which can be controlled by a chassis control device.

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).

This arm support structure is equipped with: a bracket on which base end section of an arm of a suspension device is positioned between a pair of facing walls which face one another at a distance in vehicle chassis front-rear direction; axial support members which axially support the base end section on the bracket, by being inserted into long holes formed to pass through facing walls and through-holes formed to pass through the base end section; eccentric plate members which are formed in a circular shape and capable of integrally rotating with axial support members, and have an engaging hole capable of engaging an axial support member formed to pass therethrough at a location offset in radial direction from the circular center thereof; and a plurality of contact parts which contact the circumferential edge of the eccentric plate members, and rotatably support the eccentric plate members.

A vehicle suspension assembly includes a mounting bracket adapted to couple to a vehicle frame assembly, a trailing arm having a first end pivotably coupled to the first mounting bracket, and a second end, an axle member coupled to the second end of the trailing arm, the axle member configured to support a tire, an actuator operably coupled to the trailing arm and operable between a first state configured to lift the tire away from a ground surface and a second state configured for the tire to contact the ground surface, and an actuator arrangement configured to move from a first position where the actuator arrangement couples the actuator to the trailing arm when the actuator is in the first state, and a second position where the actuator arrangement uncouples the actuator from the trailing arm when the actuator is in the second state.

A vehicle suspension assembly includes a mounting bracket adapted to couple to a vehicle frame assembly, a trailing arm having a first end pivotably coupled to the first mounting bracket, and a second end, an axle member coupled to the second end of the trailing arm, the axle member configured to support a tire, an actuator operably coupled to the trailing arm and operable between a first state configured to lift the tire away from a ground surface and a second state configured for the tire to contact the ground surface, and an actuator arrangement configured to move from a first position where the actuator arrangement couples the actuator to the trailing arm when the actuator is in the first state, and a second position where the actuator arrangement uncouples the actuator from the trailing arm when the actuator is in the second state.

The four wheel steering vehicle utilizes a cage system that extends along the longitudinal axis to protect the driver coupled to a center rail chassis. Front and Back independent suspension links extend outward along the lateral axis pivotally connected to the wheel assemblies enabling four wheel independent suspension. A centrally located pivoting shock provides both steering control and suspension attachment for the shock and spring. The vehicle is controlled by the driver using a steering wheel, acceleration pedal, and a brake pedal. The invention provides a feeling of integration with the vehicle as the driver rolls into turns with the vehicle, while minimizing fatigue caused by the continuous resistance to centrifugal cornering forces.