Cab Door Display Placement for Loader Situational Awareness

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing power machines, particularly loaders, face challenges in efficiently performing repetitive tasks due to the need for repetitive operator control, which can lead to inefficiencies and prolonged task completion times.

Innovation Solution

The integration of an augmented control system that learns a series of machine operations through a learning mode, sets a home position, and allows the loader to autonomously or semi-autonomously perform repetitive tasks, while incorporating a display integrated into the cab door to enhance situational awareness and provide critical information within the operator's line of sight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If display panels are mounted in corners of the cab, then operational information can be provided to the operator, but the operator's situational awareness of the work area is compromised due to the need to look away from the work area

Engineering Contradiction:
Improveoperational informationVSAvoidsituational awareness
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The display panel is integrated into the cab door and positioned to utilize the door glass surface, relocating the display from traditional corner mounting to a position within the operator's forward field of view. This dimensional repositioning allows the operator to view operational information without diverting gaze from the work area, resolving the contradiction between information access and situational awareness

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If an integrated display is positioned within the operator's line of sight, then situational awareness is improved, but the display may obstruct the view of the work area

Engineering Contradiction:
Improvesituational awarenessVSAvoidview of work area
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The display panel is positioned in the upper portion of the cab door, utilizing the glass surface in a location that falls within the operator's peripheral or downward glance range rather than the direct forward line of sight. This localized positioning provides operational information while maintaining an unobstructed view of the work area through the majority of the door glass

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The display is integrated into the vertical dimension of the door structure, utilizing the glass surface area that would otherwise be purely transparent. This repositioning allows information display without blocking the horizontal field of view to the work area

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4010535B1Display integrated into door
Publication Date: 2026.02.25 DOOSAN BOBCAT NORTH AMERICA INC
  • EP4010535B1 patent drawingFigure 1
  • EP4010535B1 patent drawingFigure 2
  • EP4010535B1 patent drawingFigure 3

AI summary

Disclosed embodiments include power machines (100; 200; 300; 900; 1000; 1200; 1300; 1400; 1500) having doors (1410; 1510; 1710) with a display (1404; 1406; 1530; 1730; 1830) that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., allowing the operator of the machine to see the displayed information closer to the line of sight with the work area.