Patent ID: 8682539

Claim:
A machine, comprising: a frame; an operator cab supported by the frame; at least one movable implement operatively associated with the frame; a controllable mount operatively connecting the operator cab to the frame, the controllable mount including: a housing having a first chamber filled with a rheological fluid, the first chamber separated into an upper portion and a lower portion by a damping plate fixedly attached to a pin, and a second chamber filled with a pressurized gas, the second chamber separated from the lower portion of the first chamber by a plunger fixedly attached to the pin; the pin coupled to the operator cab and mounted within the housing; and coils positioned relative to the housing to generate a field through the rheological fluid; and an electronic control unit operatively associated with the coils and adapted to change a level of current applied to the coils to adjust an apparent viscosity of the rheological fluid based on machine operation.