Work Vehicle Loading Guidance via Lateral View Overlay
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Solution Overview
Problem
Existing control systems for work vehicles, such as dump trucks, lack intuitive loading guidance, leading to inefficient and potentially unbalanced loading operations that can affect tire wear, fuel efficiency, and mechanical performance.
Innovation Solution
A control system that includes a position determination unit and a representation control unit to display loading guidance in a lateral view on an optically transparent display, allowing operators to recognize the loading position without looking away from the vehicle, using arrows or other visual indicators for intuitive positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If loading guidance is displayed in a top view or modeled box representation, then the system provides loading position information, but the operator cannot perform intuitive loading work and must look away from the loaded vehicle
Solution Approach 1:
The patent changes the display dimension from a top view (2D planar representation) to a lateral view (side view perspective) that matches the operator's natural line of sight when facing the loaded vehicle. This dimensional transformation allows the guidance information to be overlaid directly on the vehicle's actual position in the operator's field of view, enabling intuitive operation without requiring the operator to shift their gaze or mentally map the information.
Solution Approach 2:
The system creates a visual copy or representation of the loaded vehicle's lateral view and overlays the loading guidance information directly onto this copied view. This allows the operator to see both the actual vehicle and the guidance information simultaneously in a single field of view, eliminating the need to look away at separate displays or models.
2Loss of information
If the display provides detailed loading guidance information, then the operator can recognize loading positions, but the operator must look away from the loaded vehicle
Solution Approach 1:
By displaying the lateral view representation in the operator's direct field of view rather than requiring the operator to shift their gaze to a separate display, the system eliminates the time loss associated with looking away. The dimensional change allows information to be presented in the same spatial plane as the actual work area.
Solution Approach 2:
The system merges the loading guidance information with the visual field of the loaded vehicle, combining what the operator needs to see (guidance information) with what the operator needs to work on (the actual vehicle) into a single unified view. This merging eliminates the need to switch between different visual sources.
3Loss of information
If a modeled box representation is used to show loading position, then the system can indicate loading locations, but the representation is not suitable for intuitive work
Solution Approach 1:
Instead of using an abstract modeled box representation, the system creates a visual copy of the actual loaded vehicle's lateral view and displays the loading guidance on this copied representation. This copied view maintains the familiar visual characteristics of the actual vehicle, making it immediately recognizable and intuitive for the operator.
Solution Approach 2:
The patent transitions from a simplified 2D box model to a lateral view representation that preserves the dimensional and visual characteristics of the actual vehicle as seen by the operator. This dimensional change maintains the operator's familiar perspective while providing the necessary guidance information.
Data Source
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AI summary
A control system for a work vehicle includes a position determination unit which determines a position of loading on a loaded vehicle based on a state of loading on the loaded vehicle, a display, and a representation control unit which has the display show loading guidance corresponding to the position of loading determined by the position determination unit for a laterally viewed loaded vehicle.