A concept for combining the separate manual controls of a multiaxis system was explored and demonstrated on a Ford backhoe. The four axes of the backhoe system receive their command signal from a single 4 degree-of-freedom controller. The motion of the backhoe then “mimics” that of the controller, generating a followup signal to close the control loop.
This control system provides simultaneous, coordinated control of all four axes in response to natural movements of the human operator.
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