Maintenance Screen Speed Display for Wheeled Work Vehicles
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Solution Overview
Problem
Current state information displays for wheel-type working vehicles do not allow service personnel to check the speed of the vehicle during maintenance or inspection operations, as the speed information is not visible on the maintenance/inspection mode screen, posing a safety risk during these procedures.
Innovation Solution
A state information display system that includes a speed information displaying unit, integrated with a display controller, which switches to a maintenance/inspection screen to display speed information, along with operation mode and gear position information, allowing service personnel to safely perform maintenance and inspections while driving the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display switches to maintenance/inspection mode to show diagnostic information, then the service person can diagnose troubles and adjust sensors, but speed information is not displayed making it unsafe to operate the vehicle during maintenance
Solution Approach 1:
The display screen is segmented into multiple regions, with the first region dedicated to speed information and the second region dedicated to maintenance/inspection information. This spatial segmentation allows both types of information to be displayed simultaneously without interfering with each other, resolving the contradiction between showing diagnostic data and maintaining speed visibility for safety
Solution Approach 2:
The patent merges the standard operation screen and maintenance/inspection screen into a single integrated display interface. By combining both functional modes in one screen with distinct regions, the system eliminates the need to switch between screens, ensuring that speed information remains visible while maintenance information is also accessible
2Adaptability or versatility
If the display shows all maintenance information on a single screen, then the service person can access all diagnostic functions, but speed information becomes hidden creating safety risks during vehicle operation
Solution Approach 1:
The display area is divided into distinct segments or regions, where one region is allocated for speed information and another region for maintenance/inspection information. This segmentation strategy allows the system to maintain complete maintenance functionality while simultaneously displaying speed information to prevent safety hazards during vehicle operation
Solution Approach 2:
Different regions of the display screen are assigned different functional qualities: the first region is optimized for displaying speed information with high visibility, while the second region is optimized for displaying maintenance diagnostic information. This local differentiation ensures that each type of information is displayed with appropriate prominence and clarity
Data Source
AI summary
A state information display for a wheel-type working vehicle includes: a state information displaying unit that displays plural kinds of state information of the wheel-type working vehicle; and a display controller that controls display of the state information displaying unit. The display controller includes: a standard screen displaying unit that displays the plural kinds of state information in the form of a standard screen during an operation of the wheel-type working vehicle; a maintenance/inspection screen switching unit that switches from the standard screen to a maintenance/inspection screen for the wheel-type working vehicle to be displayed in response to a predetermined dedicated operation; and a speed information displaying unit that displays speed information of the wheel-type working vehicle in any one of areas defined in the maintenance/inspection screen when the maintenance/inspection screen is switched to be displayed by the maintenance/inspection screen switching unit.