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Tactile feedback system for a remotely controlled work machine

  • US 6,836,982 B1
  • Filed: 08/14/2003
  • Issued: 01/04/2005
  • Est. Priority Date: 08/14/2003
  • Status: Active Grant
First Claim
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1. A control system for a work machine having at least one hydraulic actuator, comprising:

  • an input device adapted to generate a movement signal to control the movement of the at least one hydraulic actuator;

    a first sensor operatively engaged with the at least one hydraulic actuator and adapted to a sense a parameter indicative of a magnitude of a force exerted by the hydraulic actuator;

    a first controller disposed on the work machine and adapted to control the motion of the at least one hydraulic actuator, the first controller having a first receiver adapted to receive the movement signal and a first transmitter adapted to transmit a force signal including an indication of the force exerted by the hydraulic actuator;

    a second controller operatively connected to the input device, the second controller having a second transmitter adapted to transmit the movement signal and a second receiver adapted to receive the force signal;

    a second sensor adapted to sense a parameter indicative of a magnitude of a velocity of the hydraulic actuator and wherein the first transmitter transmits a velocity signal to the second receiver; and

    a force generator operatively engaged with the input device and adapted to exert a feedback force on the input device, the magnitude of the feedback force being related to the magnitude of the force exerted by the hydraulic actuator.

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