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Work vehicle, slope travel control system for work vehicle, and slope travel control method for work vehicle

  • US 10,474,153 B2
  • Filed: 12/20/2016
  • Issued: 11/12/2019
  • Est. Priority Date: 07/19/2016
  • Status: Active Grant
First Claim
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1. A work vehicle comprising:

  • a vehicle body;

    an inclination sensor provided on the vehicle body to detect a vehicle body inclination angle with respect to a horizontal line;

    a calculator to calculate a position of the work vehicle in a work field based on positioning data;

    a travel route memory to store a travel route comprising travel route segments along which the work vehicle travels, the travel route comprising cycles, each of the cycles comprising a first straight travel route segment, a first U-turn travel route segment, a second straight travel route segment, and a second U-turn travel route segment as the travel route segments, the first straight travel route segment extending in a straight direction and having a first end and a second end opposite to the first end in the straight direction, the first U-turn travel route segment being connected to the second end, the work vehicle being configured to turn along the first U-turn travel route segment in one of a clockwise direction and a counterclockwise direction, the second straight travel route segment being connected to the first U-turn travel route segment and extending substantially parallel to the first straight travel route segment, the second straight travel route segment having a third end connected to the first U-turn travel route segment and a fourth end opposite to the third end in the straight direction, the second U-turn travel route segment being connected to the fourth end, the work vehicle being configured to turn along the second U-turn travel route segment in another of the clockwise direction and the counterclockwise direction to be connected to the first end of the first straight travel route segment in another of the cycles that is subsequent to each of the cycles;

    an information generator to output travel limit information at each inclination position along the travel route where the vehicle body inclination angle detected by the inclination sensor exceeds a threshold angle, the travel limit information including a stop signal to control the work vehicle to stop; and

    a recorder to record each inclination position along the travel route and each corresponding travel route segment among the travel route segments which includes the corresponding inclination position.

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