US 12,296,636 B2 · Agricultural vehicle with roll resistant suspension system

Abstract

An agricultural vehicle includes a frame, a body assembly coupled with the frame, a suspension system and a control system. The suspension system includes a pair of dampers positioned at opposite lateral ends of an axle. The suspension system includes a hydraulic system having a hydraulic line fluidly coupling the pair of dampers with each other through a valve. The valve is actuatable between an open position wherein the pair of dampers are fluidly coupled with each other, and a closed position in which the pair of dampers are hydraulically isolated from each other. The control system circuitry configured to obtain sensor feedback indicating a steering operation of the agricultural vehicle, and responsive to the steering operation of the agricultural vehicle, operate the valve into the closed position to hydraulically isolate the pair of dampers from each other to reduce a roll of the body assembly of the agricultural vehicle.

Claims20

Dependent claims

An agricultural vehicle comprising:

a frame;
a body assembly coupled with the frame;
a suspension system comprising:
a pair of integrated spring dampers positioned at opposite lateral ends of an axle, the pair of integrated spring dampers coupled between the body assembly and the axle;
a hydraulic system comprising a hydraulic line fluidly coupling the pair of integrated spring dampers with each other through a valve, the valve actuatable between an open position in which the pair of integrated spring dampers are fluidly coupled with each other, and a closed position in which the pair of integrated spring dampers are hydraulically isolated from each other;
and
a control system comprising processing circuitry configured to:
obtain sensor feedback indicating a steering operation of the agricultural vehicle;
and
responsive to the steering operation of the agricultural vehicle, operating the valve into the closed position to hydraulically isolate the pair of integrated spring dampers from each other to reduce a roll of the body assembly of the agricultural vehicle.

7 more elements

A control system for an agricultural vehicle, the control system comprising processing circuitry configured to:

obtain sensor feedback indicating a steering operation of the agricultural vehicle;
and
responsive to the steering operation of the agricultural vehicle, operating a valve of a suspension system into a closed position to hydraulically isolate a pair of integrated spring dampers from each other to reduce a roll of a body assembly of the agricultural vehicle;
wherein the pair of integrated spring dampers are positioned at opposite lateral ends of an axle, the pair of integrated spring dampers coupled between the body assembly and the axle;
wherein the valve is positioned along a hydraulic line of a hydraulic system of the suspension system, the hydraulic line fluidly coupling the pair of integrated spring dampers with each other through the valve, the valve actuatable between an open position in which the pair of integrated spring dampers are fluidly coupled with each other, and the closed position in which the pair of integrated spring dampers are hydraulically isolated from each other.

2 more elements

A method for operating a suspension system of an agricultural vehicle, the method comprising:

obtaining sensor feedback indicating a steering operation of the agricultural vehicle;
and
responsive to the steering operation of the agricultural vehicle, operating a valve of the suspension system into a closed position to hydraulically isolate a pair of integrated spring dampers from each other to reduce a roll of a body assembly of the agricultural vehicle;
wherein the pair of integrated spring dampers are positioned at opposite lateral ends of an axle, the pair of integrated spring dampers coupled between the body assembly and the axle;
and
wherein the valve is positioned along a hydraulic line of a hydraulic system of the suspension system, the hydraulic line fluidly coupling the pair of integrated spring dampers with each other through the valve, the valve actuatable between an open position in which the pair of integrated spring dampers are fluidly coupled with each other, and the closed position in which the pair of integrated spring dampers are hydraulically isolated from each other.

3 more elements

Dependencies are inferred from the claim text.

Agricultural vehicle with roll resistant suspension system

Life of this patent

Agricultural vehicle with roll resistant suspension system

Life of this patent

Abstract

Claims20