Motor Grader Route Control Using Windrow Position Feedback
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Solution Overview
Problem
Motor graders form windrows during grading work, requiring effective land grading solutions to manage these formations.
Innovation Solution
A control system for work vehicles that includes a position measurement unit to measure windrow positions, a work route setting unit to set routes based on these measurements, and a travel control unit to guide the vehicle along the set routes, with optional features for measuring and controlling based on windrow width and height, and communication with external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the motor grader performs grading work using the blade, then the road surface can be repaired, but windrows are formed on the lateral sides requiring additional land grading operations
Solution Approach 1:
The system performs preliminary detection of windrow positions during the first grading operation, stores this information, and uses it to plan and execute a second grading operation specifically targeted at removing the windrows. This preliminary detection and planning enables the system to address windrow formation proactively rather than reactively.
Solution Approach 2:
The system uses position detection means to continuously monitor and detect the position of windrows formed during grading work. This detection information is fed back to the control system, which then adjusts the work route and blade operations to effectively remove the detected windrows, creating a closed-loop control system that responds to actual field conditions.
2Device complexity
If manual monitoring of windrow positions is used, then simple equipment is required, but work efficiency decreases and additional manual operations are needed
Solution Approach 1:
The motor grader is equipped with position detection means that automatically detects and monitors windrow positions during grading operations. This self-service capability eliminates the need for manual monitoring by operators, allowing the machine to autonomously identify windrow locations and adjust its operations accordingly, thereby maintaining equipment simplicity while significantly improving work efficiency.
3Productivity
If windrows are not properly managed, then fewer operations are needed, but land grading quality deteriorates and uneven surfaces remain
Solution Approach 1:
The system detects windrow positions during the first grading operation and uses this information to plan a second targeted grading operation. By preliminarily identifying windrow locations and preparing a specific route for their removal, the system ensures that windrows are properly managed without requiring excessive operations, thereby maintaining both operational efficiency and land grading quality.
Solution Approach 2:
The position detection means continuously monitors windrow positions and feeds this information back to the control system. This feedback enables the system to adjust the second grading operation to precisely target and remove windrows, ensuring high land grading quality while minimizing the number of operations required. The closed-loop control ensures that grading quality is maintained without unnecessary additional operations.
Data Source
AI summary
A control system for a work vehicle having a work implement, the control system including: a position measurement unit for measuring a position of a windrow produced by grading work; a work route setting unit for setting a work route based on the position of the windrow that has been measured by the position measurement unit; and a travel control unit for controlling the work vehicle to travel along the work route that has been set by the work route setting unit.