IP Library Granted Patent US 12,441,183
Granted Patent B2
US 12,441,183 · App. 18/627,123 · Granted Oct 14, 2025

Operation control method, operation control system, and operation control program

Inventors: Kenta Ikenori (Okayama, JP); So Ueno (Okayama, JP)
Assignee: YANMAR HOLDINGS CO., LTD.
B60K35/10A01B76/00B60K26/02B60K35/28B60K2360/11B60K2360/167B60K2360/175
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Quick Facts
Patent No.
US 12,441,183
App. No.
18/627,123
Granted
Oct 14, 2025
Kind
B2
Abstract

The operation control method includes: executing travel control related to travel of the work machine; and adjusting acceleration until time at which a travel speed of the work machine reaches target speeds V 1 , V 2 during the speed reduction of the work machine in accordance with a user's operation.

Claims (46)

1. An operation control method comprising:

executing travel control related to travel of a work machine;

adjusting acceleration until time at which a travel speed of the work machine reaches a target speed during a speed reduction of the work machine in accordance with a user's operation;

displaying a travel setting screen for adjustment of the acceleration, and

wherein the acceleration is adjusted in accordance with the user's operation on an acceleration operation unit included in the travel setting screen.

2. The operation control method according to claim 1 further comprising:

adjusting the acceleration until time at which the travel speed of the work machine reaches the target speed during a speed increase of the work machine in accordance with the user's operation.

3. The operation control method according to claim 2 , wherein the acceleration during the speed reduction and the acceleration during the speed increase are collectively adjusted.

4. The operation control method according to claim 1 , further comprising:

suppressing the acceleration in a start period, in which the speed of the work machine is increased from a stopped state, to be lower than the acceleration other than that in the start period.

5. The operation control method according to claim 1 , further comprising:

setting the target speed in response to an operation of a first operation unit, and

wherein, when the target speed is changed in response to the operation of the first operation unit, the acceleration until time at which the travel speed of the work machine reaches the changed target speed is adjusted in accordance with the user's operation.

6. The operation control method according to claim 5 , further comprising:

reducing the target speed in response to an operation of a second operation unit different from the first operation unit, and

wherein, when the target speed is reduced in response to the operation of the second operation unit, the acceleration until time at which the travel speed of the work machine reaches the reduced target speed is adjusted in accordance with the user's operation.

7. The operation control method according to claim 1 , wherein;

the work machine includes an auxiliary transmission that can switch a speed range of the work machine among a plurality of speed ranges, and

the acceleration is adjusted in accordance with the user's operation only when the speed of the work machine falls within a part of the plurality of speed ranges.

8. The operation control method according to claim 1 , wherein the acceleration is adjusted in accordance with the user's operation even when while the work machine is moving.

9. The operation control method according to claim 1 , further comprising:

causing the work machine to autonomously travel, and

wherein adjustment of the acceleration is disabled during autonomous travel of the work machine.

10. The operation control method according to claim 1 , wherein:

the work machine includes an auxiliary transmission configured to switch a speed range of the work machine among a plurality of speed ranges, and

the plurality of speed ranges is divided into two or more speed change groups, and

the acceleration is adjusted in accordance with the user's operation for each of the speed change groups.

11. The operation control method according to claim 10 , wherein the two or more speed change groups are a first group including a speed range for work and a second group including a speed range for road travel.

12. The operation control method according to claim 10 , wherein the acceleration is adjusted independently for each of the speed change groups.

13. The operation control method according to claim 10 , further comprising:

displaying the travel setting screen for adjustment of the acceleration, and wherein:

the acceleration is adjusted in accordance with the user's operation on the acceleration operation unit included in the travel setting screen, and

the acceleration for each of the two or more speed change groups is adjusted on one screen.

14. The operation control method according to claim 10 , further comprising:

displaying the travel setting screen for adjustment of the acceleration, and wherein:

the acceleration is adjusted in accordance with the user's operation on the acceleration operation unit included in the travel setting screen, and

the acceleration for each of the two or more speed change groups is adjusted on a separate screen.

15. An operation control system comprising:

a travel control unit configured to execute travel control related to travel of a work machine;

an acceleration adjustment processing unit configured to adjust acceleration until time at which a travel speed of the work machine reaches a target speed during a speed reduction of the work machine in accordance with a user's operation;

displaying a travel setting screen for adjustment of the acceleration, and

wherein the acceleration is adjusted in accordance with the user's operation on an acceleration operation unit included in the travel setting screen.

16. An operation control program for causing one or more processors to: execute travel control related to travel of a work machine;

adjust acceleration until time at which a travel speed of the work machine reaches a target speed during a speed reduction of the work machine in accordance with a user's operation;

displaying a travel setting screen for adjustment of the acceleration, and

wherein the acceleration is adjusted in accordance with the user's operation on an acceleration operation unit included in the travel setting screen.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2024
From: IKENORI, KENTA; UENO, SO
To: YANMAR HOLDINGS CO., LTD.
Reel/Frame 067011/0960 →
Priority Claims (2)
JP 2023-062202 · Apr 6, 2023 · national
JP 2024-016177 · Feb 6, 2024 · national
Continuity (1)
Related Publication 20240336137A1 · Oct 10, 2024
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