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Position control apparatus and method for working machine of construction machinery

  • US 9,014,923 B2
  • Filed: 11/05/2010
  • Issued: 04/21/2015
  • Est. Priority Date: 12/18/2009
  • Status: Active Grant
First Claim
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1. A position control apparatus for a working machine of a construction machine, comprising:

  • a boom driving unit for driving a boom;

    a bucket driving unit for driving a bucket;

    a working tool manipulating part for generating a manipulation signal for driving the boom driving unit and the bucket driving unit;

    a kick-down switch for generating a kick-down signal for lowering a gear stage; and

    a controller configured to generate output signals as a combined function of the kick-down signal and the manipulation signal such that, if the kick-down signal is generated by the kick-down switch and the manipulation signal is generated by the working tool manipulating part, the controller outputs a control signal to the boom driving unit and the bucket driving unit to move the boom and the bucket to a preset position, and such that if the kick-down signal is generated by the kick-down switch and the manipulation signal is not generated by the working tool manipulating part, the controller outputs the kick-down signal to a transmission control unit to lower a gear stage.

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