Patent ID: 6311795
Filing Date: 2001-11-06
Classification: B60G,B62D

Abstract:
A work vehicle steering system for a work vehicle having a frame, a plurality of wheels, and a coupling assembly coupled to at least one of the wheels, the coupling assembly comprising:a first rotatable assembly coupled to the frame and configured to rotate on a first axis;a second rotatable assembly coupled to the first rotatable assembly and configured to rotate on a second axis;a third rotatable assembly coupled between the second rotatable assembly and the wheel and configured to rotate on a third axis, whereby the coupling assembly provides the wheel with three degrees of movement;a control circuit coupled to at least one of the first, second, and third rotatable assemblies configured to rotate at least one of the first, second, and third assemblies on their respective axes; andfirst, second, and third position sensors coupled to the first, second, and third rotatable assemblies, respectively, each position sensor configured to provide a position signal to the control circuit representative of the position of the respective rotatable assembly.