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System for automated excavation control based on productivity

  • US 7,917,265 B2
  • Filed: 01/31/2007
  • Issued: 03/29/2011
  • Est. Priority Date: 01/31/2007
  • Status: Active Grant
First Claim
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1. A control system for a mobile excavation machine, comprising:

  • a ground engaging work tool;

    a sensor configured to sense a parameter indicative of a current travel speed of the mobile excavation machine and to generate a speed signal in response thereto; and

    a controller in communication with the ground engaging work tool and the sensor, the controller being configured to;

    receive an operator input indicative of a desired autonomous dig function;

    increase the travel speed to a maximum amount and engage the ground engaging tool with a work surface in response to the operator input;

    receive the speed signal from the sensor;

    determine an amount of material currently being moved by the work tool;

    calculate a current productivity value associated with removal of the material based on the speed signal and the determined amount of material currently being moved; and

    control the ground engaging work tool to vary the amount of material currently being moved in response to the current productivity value.

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