Abstract: A suspension system for an operator station of a vehicle having a chassis includes a subframe structure positioned between the operator station and the chassis. The subframe structure includes a plurality of mounting pads configured to support the operator station. A plurality of suspension assemblies are connected between the chassis and the subframe structure near each of the mounting pads. A first lateral rod is connected between the subframe structure near one of the mounting pads and the chassis. A first longitudinal rod is connected between the subframe structure near one of the mounting pads and the chassis. A stabilizer bar is connected between the subframe structure at two locations and the chassis. A roll control bar is connected between the subframe structure at two locations and the chassis.

Abstract: A suspension system for an operator station of a vehicle having a chassis includes a subframe structure positioned between the operator station and the chassis. The subframe structure includes a plurality of mounting pads configured to support the operator station. A plurality of suspension assemblies are connected between the chassis and the subframe structure near each of the mounting pads. A first lateral rod is connected between the subframe structure near one of the mounting pads and the chassis. A first longitudinal rod is connected between the subframe structure near one of the mounting pads and the chassis. A stabilizer bar is connected between the subframe structure at two locations and the chassis. A roll control bar is connected between the subframe structure at two locations and the chassis.

Abstract: A steering control system is provided for a vehicle having a steering wheel, steerable wheels, and a hydraulic steering actuator for controlling a steering angle of the steerable wheels in response to a hydraulic control signal. The steering control system includes a hydro-mechanical valve coupled to the steering wheel and generating a first hydraulic signal as a function of steering wheel position, an electro-hydraulic valve generating a second hydraulic signal as a function of an electronic control signal, an electronic control unit generating the electronic control signal, and a hydraulic combining unit which combines the first and second hydraulic signals supplies the hydraulic control signal to the hydraulic steering actuator. The steering control system also includes a steering wheel angle sensor, a yaw rate sensor, and a steered wheel angle sensor. The control unit generates an electronic control signal as a function of the sensor signals.

Abstract: A method is provided for controlling steering oscillations in a work vehicle having a closed loop GPS based automatic steering system, wherein the closed loop steering system has a default gain and a user defined gain. The method causes the system to automatically apply the default gain when an implement is raised and/or when a steering oscillation has been detected and to automatically apply the user defined gain when the implement has been lowered and/or the GPS track has been acquired.

Abstract: A method is provided for controlling steering oscillations in a work vehicle having a closed loop GPS based automatic steering system, wherein the closed loop steering system has a default gain and a user defined gain. The method causes the system to automatically apply the default gain when an implement is raised and/or when a steering oscillation has been detected and to automatically apply the user defined gain when the implement has been lowered and/or the GPS track has been acquired.