JP-7855656-B2 - Control method for work vehicles

Inventors

• 段口 将志
• 鈴木 頌梧

Assignees

• ヤンマーホールディングス株式会社

Dates

Publication Date

20260508

Application Date

20240930

Claims (6)

1. A method for controlling a work vehicle, which displays multiple images of the surroundings of the work vehicle as monitoring images on a display unit, By switching a specific display image, an enlarged image is displayed on the display unit, which enlarges the entire monitoring image, including all the images that were displayed on the display unit, to fill the entire display unit. Along with the aforementioned monitoring image, the display unit will display information regarding the work vehicle, A method for controlling a work vehicle, comprising the following steps: the switching operation erases the information displayed on the display unit and prevents other images from being superimposed on the enlarged image.
2. The aforementioned information is displayed to the side of the monitoring image in the control method for the work vehicle according to claim 1.
3. The aforementioned information is displayed below the monitoring image in the control method for the work vehicle according to claim 1.
4. The information includes a plurality of item information displayed along the lower end of the display unit, The control method for a work vehicle according to claim 3, further comprising a plurality of button switches positioned below the display unit, corresponding to a plurality of item information, and enabling operations according to the corresponding items.
5. The control method for a work vehicle according to claim 4, wherein the switching operation is performed by one of the plurality of button switches.
6. The method for controlling a work vehicle according to any one of claims 1 to 5, wherein the enlarged image is displayed across the entire display unit.

Description

This invention relates to a control method for work vehicles. Various systems for monitoring the surroundings of work vehicles such as excavators have been proposed. For example, the system described in Patent Document 1 uses multiple cameras to capture images of the area around the excavator, generates an overhead view from the acquired images, and displays it on a display unit. The display unit is equipped with multiple button switches. When the operator presses any of the button switches, the camera image corresponding to the button switch is enlarged and displayed in the overhead view. By switching between displaying the camera images and the overhead view, the operator can accurately acquire the information necessary for monitoring the surroundings. Japanese Patent Publication No. 2012-74929 This is a side view showing a schematic configuration of a hydraulic excavator, which is an example of a work vehicle according to one embodiment of the present invention.This is a block diagram showing the main components of the hydraulic excavator described above.This is an explanatory diagram showing an example of the display screen of the display unit of the hydraulic excavator described above.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the first display mode.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the second display mode.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the third display mode.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the fourth display mode.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the fifth display mode.This is an explanatory diagram showing the display screen of the above-mentioned display unit in the sixth display mode.This is an explanatory diagram showing an example of transitions between multiple display modes.This is an explanatory diagram showing another example of the display screen of the above-mentioned display unit.This is an explanatory diagram showing yet another example of the display screen of the above-mentioned display unit. Embodiments of the present invention will be described below based on the drawings. [1. Work Vehicles] Figure 1 is a side view showing the schematic configuration of a hydraulic excavator 1, which is an example of a work vehicle in this embodiment. The hydraulic excavator 1 comprises a lower traveling body 2, a work implement 3, and an upper rotating body 4. Here, in Figure 1, directions are defined as follows. First, the direction in which the lower mobile body 2 moves straight is defined as the front-rear direction, with one side being "front" and the other "rear." In Figure 1, as an example, the blade 23 side is shown as "front" relative to the mobile motor 22. Furthermore, the lateral direction perpendicular to the front-rear direction is defined as the left-right direction. In this case, the left side is defined as "left" and the right side as viewed from the operator (driver) seated in the cockpit 41a. Additionally, the direction of gravity perpendicular to both the front-rear and left-right directions is defined as the up-down direction, with the upstream side of the gravity direction being "up" and the downstream side being "down." The lower travel unit 2 is driven by power from the engine 40 to move the hydraulic excavator 1. The lower travel unit 2 comprises a pair of left and right crawlers 21 and a pair of left and right travel motors 22. Each travel motor 22 is a hydraulic motor. The left and right travel motors 22 drive the left and right crawlers 21 respectively, allowing the hydraulic excavator 1 to move forward and backward. The lower travel unit 2 is equipped with a blade 23 for leveling work and a blade cylinder 23a. The blade cylinder 23a is a hydraulic cylinder that rotates the blade 23 vertically. The work machine 3 is powered by the engine 40 and performs excavation work to dig up soil and other materials. The work machine 3 is equipped with a boom 31, an arm 32, and a bucket 33. Excavation work can be performed by independently driving the boom 31, arm 32, and bucket 33. The boom 31 is rotated by the boom cylinder 31a. The boom cylinder 31a's base end is supported at the front of the upper slewing body 4, and it is extendable and retractable. The arm 32 is rotated by the arm cylinder 32a. The arm cylinder 32a's base end is supported at the tip of the boom 31, and it is extendable and retractable. The bucket 33 is rotated by the bucket cylinder 33a. The bucket cylinder 33a's base end is supported at the tip of the arm 32, and it is extendable and retractable. The boom cylinder 31a, arm cylinder 32a, and bucket cylinder 33a are all hydraulic cylinders. The bucket 33 is a container-shaped member attached to the tip of the work machine 3, equipped with claws for excavation