Work Machine Travel Route Selection Inside Inversion
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Solution Overview
Problem
Conventional work machines fail to account for zones outside the work target zone, such as cliffs, bunkers, and trees, leading to interference and reduced work efficiency, and require skilled operation to enter travel routes correctly, especially when the periphery of the work target zone is close to the entry prohibited zone.
Innovation Solution
A system that generates travel routes by setting the periphery of the work target zone and entry prohibited zone, selecting inside inversion routes to avoid interference, and includes a control system for automatic travel and entry availability determination to ensure the work machine can enter the route by forward movement near the work complete or incomplete position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the work machine makes a turn outside of straight routes in the travel route, then the work machine can follow the conventional inversion route pattern, but the work machine may interfere with the periphery of the entry prohibited zone when the periphery of the work target zone and the periphery of the entry prohibited zone are close to each other
Solution Approach 1:
The patent inverts the conventional approach by selecting inside inversion routes instead of outside inversion routes. When the periphery of the work target zone and the periphery of the entry prohibited zone are close to each other, the system chooses to turn inside the work target zone rather than outside, thereby avoiding interference with the entry prohibited zone while maintaining the inversion route pattern for efficient work coverage.
2Reliability
If the turn operation is started inside of the periphery of the work target zone to avoid interference with the entry prohibited zone, then the interference is avoided, but the actual work zone becomes smaller than the work target zone
Solution Approach 1:
The patent dynamically adjusts the inversion route selection based on the positional relationship between the work target zone and the entry prohibited zone. The system determines whether to use inside or outside inversion routes according to real-time spatial conditions, allowing flexible optimization of both safety (avoiding prohibited zones) and productivity (maximizing work zone coverage) without fixed constraints.
3Ease of operation
If the work machine requires skilled operation to enter travel routes correctly, then the work machine can follow conventional operational procedures, but the burden on users increases and mistakes in route selection and entry may occur
Solution Approach 1:
The patent implements automatic travel control that autonomously determines and executes the appropriate inversion route (inside or outside) based on the spatial relationship between the work target zone and entry prohibited zone. The system self-adjusts the travel path without requiring user skill or manual intervention, eliminating mistakes in route selection and entry while maintaining conventional operational simplicity for the user.
4Reliability
If the system generates a travel route that accounts for the periphery of the entry prohibited zone, then the work machine can avoid interference with prohibited zones, but the device complexity increases due to zone setting and route generation requirements
Solution Approach 1:
The patent integrates multiple functions into the travel control system: automatic zone recognition, dynamic route generation, inversion route selection, and real-time travel control. This multi-functional approach consolidates what would otherwise require separate systems into a unified controller that automatically determines inside or outside inversion routes based on spatial relationships, reducing overall system complexity while maintaining high reliability.
Data Source
AI summary
A travel route automatic selection system for a work machine includes a travel route search unit that searches a travel route satisfying a condition that the work machine can enter from a current position for preparing entry only by forward movement along an entry route formed so that the work machine enters at an entry position in a same direction as a traveling direction when the work machine travels the travel route, at an entry position positioned between a travel route start position and a work start position, from a predetermined travel route corresponding to each of the one or a plurality of work target zones, by determining whether the condition is satisfied based on at least the travel route part of the predetermined distance from the travel route start position at least between the travel route start position and the work start position of the predetermined travel route.