A suspension operation system includes: a suspension that includes a plurality of links supporting a wheel, at least one or more of the links having an actuator increasing or decreasing its length in an axial direction; a control device that supplies a drive signal to the actuator to control operation of the suspension; and a suspension operation terminal that operates the suspension. The suspension operation terminal includes: a detector that detects operation input information to the suspension operation terminal; and a communicator that transmits information about a target posture of the wheel, the information being based on the operation input information, to the control device as an operation command. The control device includes: a first calculator that calculates the length of the actuator on the basis of the operation command; and a drive circuit that produces the drive signal on the basis of information from the first calculator.

A vehicle body structure includes: a pair of left and right suspensions provided below a vehicle body floor; suspension mounting portions for mounting the suspensions to the vehicle body floor; a power supply device that supplies power to drive a vehicle; a frame that supports the power supply device; and frame mounting portions for mounting the frame to the vehicle body floor, wherein the frame mounting portions are disposed at positions overlapping in a vertical direction with the suspension mounting portions.

A vehicle body structure includes: a pair of left and right suspensions provided below a vehicle body floor; suspension mounting portions for mounting the suspensions to the vehicle body floor; a power supply device that supplies power to drive a vehicle; a frame that supports the power supply device; and frame mounting portions for mounting the frame to the vehicle body floor, wherein the frame mounting portions are disposed at positions overlapping in a vertical direction with the suspension mounting portions.

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.

The invention relates to structural components of vehicles, and more particularly to the suspension of both conventional and special vehicles, such as ambulances, baby carriages and wheelchairs. The suspension comprises a quadrangular frame with a pair of arms attached thereto, where the ends of said arms are configured to be connected to the hubs of the respective wheels, and the suspension of the present invention comprises two pairs of armsa pair of identical transverse arms and a pair of identical longitudinal arms with the ends of the longitudinal arms configured to be connected to the hubs of the respective wheels, wherein each arm is rotatably attached by its central zone to the central portion of the corresponding side of a quadrangular frame through rubber-metal joint, wherein the arms contact surfaces are cylindrical, they are adapted for mechanical coupling of arms to each other and are oriented as follows: longitudinal left and right arms have their contact surfaces oriented upwards, while transverse front and back arms have their contact surfaces oriented downwards, contact surfaces of each arm are tangent to the plane extending through the axis of rotation of the arm and are located on one side of it, while each side of the quadrangular frame rests upon the hubs of two wheels through the corresponding arm. Each transverse and longitudinal arm is made as a pair of arms spaced apart and connected by at least one connecting rod, and each such spaced arm has the form of a parallelogram. The invention is based on the objective to provide the suspension, which is more reliable due to lower level of mechanical stresses in the suspension mechanisms, which results from creation of the conditions where the function of the mechanism for changing the direction of rotation is performed by a transverse arm having a length equal to the width of the suspension.

The invention relates to structural components of vehicles, and more particularly to the suspension of both conventional and special vehicles, such as ambulances, baby carriages and wheelchairs. The suspension comprises a quadrangular frame with a pair of arms attached thereto, where the ends of said arms are configured to be connected to the hubs of the respective wheels, and the suspension of the present invention comprises two pairs of armsa pair of identical transverse arms and a pair of identical longitudinal arms with the ends of the longitudinal arms configured to be connected to the hubs of the respective wheels, wherein each arm is rotatably attached by its central zone to the central portion of the corresponding side of a quadrangular frame through rubber-metal joint, wherein the arms contact surfaces are cylindrical, they are adapted for mechanical coupling of arms to each other and are oriented as follows: longitudinal left and right arms have their contact surfaces oriented upwards, while transverse front and back arms have their contact surfaces oriented downwards, contact surfaces of each arm are tangent to the plane extending through the axis of rotation of the arm and are located on one side of it, while each side of the quadrangular frame rests upon the hubs of two wheels through the corresponding arm. Each transverse and longitudinal arm is made as a pair of arms spaced apart and connected by at least one connecting rod, and each such spaced arm has the form of a parallelogram. The invention is based on the objective to provide the suspension, which is more reliable due to lower level of mechanical stresses in the suspension mechanisms, which results from creation of the conditions where the function of the mechanism for changing the direction of rotation is performed by a transverse arm having a length equal to the width of the suspension.

A wheel suspension (1) for a motor vehicle, having a wheel carrier (3) which is mounted so that the wheel carrier (3) can pivot relative to a wheel-guiding control arm (4). The wheel-guiding control arm (4) includes a longitudinal control arm section (4a) with a forward body-side bearing (11) and a transverse control arm section (4b) with a rear body-side bearing (12). The rear body-side bearing (12) is designed as a ball joint.

A wheel suspension (1) for a motor vehicle, having a wheel carrier (3) which is mounted so that the wheel carrier (3) can pivot relative to a wheel-guiding control arm (4). The wheel-guiding control arm (4) includes a longitudinal control arm section (4a) with a forward body-side bearing (11) and a transverse control arm section (4b) with a rear body-side bearing (12). The rear body-side bearing (12) is designed as a ball joint.

A vehicle includes a vehicle frame and a suspension arm. A bushing is connected to the suspension arm. A lever extends through the bushing. A fastener is fastened to the lever and the vehicle frame. When the lever is impacted by a rigid barrier of a small-offset rigid-barrier (SORB) frontal impact test, the lever breaks the fastener and allows the lever, the bushing, and the suspension arm to release from the vehicle frame.

A vehicle includes a vehicle frame and a suspension arm. A bushing is connected to the suspension arm. A lever extends through the bushing. A fastener is fastened to the lever and the vehicle frame. When the lever is impacted by a rigid barrier of a small-offset rigid-barrier (SORB) frontal impact test, the lever breaks the fastener and allows the lever, the bushing, and the suspension arm to release from the vehicle frame.