Auto Unloading Handoff Control for Material Transfer Vehicles

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Solution Overview

Problem

Current control systems for agricultural equipment struggle with determining the optimal time to switch from path planning to auto unloading, leading to inefficiencies in the unloading process.

Innovation Solution

A handoff control system that uses position-based criteria, such as distance, travel time, or predefined zones, to determine when to transition from path planning to auto unloading, ensuring precise positioning and efficient material transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If path planning system controls the material transfer vehicle throughout the entire process, then the vehicle can navigate to the container, but the unloading process becomes less efficient and requires manual intervention

Engineering Contradiction:
Improveunloading efficiencyVSAvoidautomation transition complexity
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The control process is segmented into distinct phases: path planning phase (navigation to container) and auto unloading phase (positioning and unloading). The handoff control system determines when to transition between these phases based on position-based criteria, allowing each phase to be optimized independently for its specific function.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handoff control system pre-determines the transition point from path planning to auto unloading using position-based criteria (distance, travel time, or predefined zones). This preliminary determination ensures seamless transition and allows the auto unloading system to be prepared and activated at the optimal moment, improving overall efficiency.

Inventive Principle:
Principle #10Preliminary action

2Extent of automation

If the handoff between path planning and auto unloading occurs too early, then automation is enhanced, but positioning precision deteriorates

Engineering Contradiction:
Improveautomation timingVSAvoidpositioning accuracy
Core Design Contradiction:
Extent of automationVSMeasurement precision

Solution Approach 1:

The handoff control system continuously monitors position-based parameters (distance to container, travel time remaining, or zone boundaries) and uses this feedback to determine the optimal handoff moment. This feedback mechanism ensures the transition occurs at the precise moment when automation can take over without compromising positioning accuracy.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system uses multiple position-based parameters (distance, travel time, zone location) that change as the vehicle approaches the container. By monitoring these changing parameters, the handoff control system can determine the optimal transition point where automation begins and positioning precision is maintained.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If manual control is used during unloading, then positioning can be adjusted, but the unloading process becomes slower and less consistent

Engineering Contradiction:
Improveunloading speedVSAvoidcontrol complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The auto unloading system performs self-positioning and self-execution of unloading operations once activated by the handoff control system. The system automatically adjusts its position relative to the container and executes the unloading process without requiring manual intervention, thereby increasing speed and consistency while maintaining operational simplicity through automated control.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250278099A1Position-based initiation of auto unloading operation
Publication Date: 2025.09.04 DEERE & CO
  • US20250278099A1 patent drawing
  • US20250278099A1 patent drawing
  • US20250278099A1 patent drawing

AI summary

A control system on a material transfer vehicle includes a path planning system that plans a path from the material transfer vehicle to a container, and a navigation system that navigates the material transfer vehicle along the navigation path. An auto unloading system automatically controls the material transfer vehicle as it approaches the container, positions itself closely proximate the container, and unloads material into the container. A handoff control system uses position-based criteria to determine when to switch from controlling the material transfer vehicle using the path planning system to controlling the material transfer vehicle using the auto unload system. The handoff control system generates a control signal triggering the auto unload system to begin controlling the material transfer vehicle when the position-based criteria are met.