Work Machine Control Device Positioning Accuracy
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Solution Overview
Problem
Existing techniques for controlling movable parts of work machines, such as graders, often result in positional deviations from intended regions due to control errors.
Innovation Solution
A control system comprising a movement control means and a correction control means, utilizing sensors to accurately position movable parts by detecting and correcting positional relations between the movable part and the destination region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional control methods are used to move the movable part, then the control system is simple, but the positioning accuracy deteriorates due to control errors
Solution Approach 1:
The patent implements a feedback control mechanism where a sensor detects the actual position of the movable part, compares it with the target position, and generates correction signals to eliminate positional deviations. This closed-loop feedback system continuously monitors and adjusts the movable part's position, resolving the contradiction by maintaining high positioning accuracy through real-time error correction without requiring overly complex control architecture
Solution Approach 2:
The patent replaces complex mechanical positioning mechanisms with a sensor-based detection and control system. Instead of using intricate mechanical linkages and manual adjustment mechanisms to achieve precise positioning, the system uses sensors to detect position and electronic control to adjust the movable part, thereby achieving high positioning accuracy while keeping the overall system complexity manageable
2Manufacturing precision
If conventional control methods are used, then the control system is easy to operate, but the position of the movable part deviates from the intended region
Solution Approach 1:
The patent implements a self-correcting control system where the sensor automatically detects positional deviations and the control apparatus autonomously generates correction signals without requiring manual intervention. The system serves itself by continuously monitoring its own performance and making necessary adjustments, thereby achieving high positioning accuracy while maintaining ease of operation as the operator simply needs to initiate the movement command
3Manufacturing precision
If a sensor-based correction system is implemented, then positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent enhances the versatility of the control system by enabling it to adapt to different positioning requirements and scenarios. The sensor-based correction mechanism can be applied to various types of movable parts and control applications, making the system multi-functional. This universality justifies the added complexity by providing a flexible, reusable solution that improves positioning accuracy across multiple operations and configurations
Data Source
AI summary
A movable part of a work machine is moved to an intended region with higher accuracy. A control apparatus (10) for controlling a work machine having a movable part includes: a movement control section (11) of controlling the work machine to move the movable part to a destination region; and a correction control section (12) of detecting a positional relation between the destination region and the movable part with reference to a detection value of a sensor to control the work machine to correct a position of the movable part.