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

Patent metadata

Field	Value
Publication number	US-2018024563-A1
Application number	US-201615385760-A
Country	US
Kind code	A1
Filing date	Dec 20, 2016
Priority date	Jul 19, 2016
Publication date	Jan 25, 2018
Grant date	—

Abstract

A work vehicle to travel along a travel route includes a vehicle body, an inclination sensor, a calculator, an information generator, and a recorder. The inclination sensor is provided on the vehicle body to detect a vehicle body inclination angle with respect to a horizontal line. The calculator is to calculate a position of the work vehicle in a work field based on positioning data. The information generator is to output travel limit information at an inclination position on the travel route where the vehicle body inclination angle detected by the inclination sensor exceeds a threshold angle. The recorder is to record, as an inclined area, an area around the inclination position which is calculated based on the positioning data.

First claim

What is claimed is:

1 . A work vehicle to travel along a travel route, 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; and a calculator to calculate a position of the work vehicle in a work field based on positioning data; an information generator to output travel limit information at an inclination position on the travel route where the vehicle body inclination angle detected by the inclination sensor exceeds a threshold angle; and a recorder to record, as an inclined area, an area around the inclination position which is calculated based on the positioning data.

2 . The work vehicle according to claim 1 , wherein the information generator outputs, as the travel limit information, a travel warning signal to warn of travelling with automatic steering when the vehicle body inclination angle exceeds a warning threshold.

3 . The work vehicle according to claim 1 , wherein the information generator outputs, as the travel limit information, an automatic steering prohibition signal to control the work vehicle operated with automatic steering to stop when the vehicle body inclination angle exceeds an automatic steering travel prohibition threshold.

4 . The work vehicle according to claim 1 , wherein the information generator outputs, as the travel limit information, a stop signal to control the work vehicle to stop when the vehicle body inclination angle exceeds a travel prohibition threshold.

5 . The work vehicle according to claim 1 , wherein the inclined area which has been recorded is read when a travel route is generated in planning a next operation.

6 . A slope travel control system for a work vehicle to travel along a travel route in a work field, comprising:
an inclination sensor to detect a vehicle body inclination angle of a vehicle body of the work vehicle with respect to a horizontal line; and a calculator to calculate a position of the work vehicle in the work field based on positioning data; a receiver to receive the vehicle body inclination angle associated with the position; an information generator to output travel limit information at an inclination position on the travel route where the vehicle body inclination angle detected by the inclination sensor exceeds a threshold angle; and a recorder to record, as an inclined area, an area around the inclination position which is calculated based on the positioning data.

7 . A slope travel control method for a work vehicle to travel along a travel route in a work field, comprising:
detecting a vehicle body inclination angle of a vehicle body of the work vehicle with respect to a horizontal line; calculating a position of the work vehicle in the work field based on positioning data; receiving the vehicle body inclination angle associated with the position; outputting travel limit information at an inclination position on the travel route where the vehicle body inclination angle exceeds a threshold angle; and recording, as an inclined area, an area around the inclination position which is calculated based on the positioning data.

Assignees

• Kubota Kk

Inventors

• Matsuzaki Yushi
• Shinkai Atsushi
• Nishi Keishiro

Classifications

• A01B79/005

  Precision agriculture · CPC title

• A01B63/11 Primary

  for controlling weight transfer between implements and tractor wheels · CPC title

• A01B69/00

  Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track · CPC title

• G01C21/3697

  Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence) · CPC title

• B60Y2200/221

  Tractors · CPC title