Vehicle Display Controller Warning Signal Prioritization
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Solution Overview
Problem
The limitations in display area size of existing vehicle information systems often prevent the simultaneous display of all active warning signals, particularly as vehicles become more complex, requiring operators to be aware of numerous operating conditions.
Innovation Solution
A vehicle display system that uses a vehicle display controller to prioritize and manage warning signals, applying masks to determine the size and location of each signal, with critical warnings in red and non-critical warnings in yellow, and allowing for manual scrolling to view all active warnings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple warning signals are displayed simultaneously, then information completeness is improved, but display area limitations cause information overload and reduced readability
Solution Approach 1:
The display is segmented into multiple hierarchical levels: primary display area for critical warnings, secondary display area for additional warnings, and a scrollable list for complete information. This segmentation allows all warning signals to be preserved while organizing them in a manageable structure that prevents information overload.
Solution Approach 2:
Different display areas are assigned different visual qualities and priorities. Critical warnings receive prominent placement with distinct visual characteristics, while less critical warnings are displayed with reduced visual emphasis. This local differentiation helps operators quickly identify important information without being overwhelmed by all warnings equally.
2Loss of information
If display area size is increased to show all warnings, then information completeness is improved, but device complexity and cost increase
Solution Approach 1:
The display system dynamically adjusts its configuration based on the number and priority of active warnings. The controller automatically determines which warnings to display in which areas, and can enable/disable scrolling functionality based on current warning conditions. This dynamic adaptation allows a fixed-size display to effectively show variable amounts of information without requiring physical expansion.
Solution Approach 2:
The display system performs multiple functions within a single display area: it can show a limited number of critical warnings simultaneously, provide a scrollable list of all warnings, and adjust its behavior based on warning priority. This multi-functionality eliminates the need for additional display hardware while maintaining complete information availability.
3Loss of information
If all warning signals are displayed with equal prominence, then information completeness is improved, but critical warning detection time increases
Solution Approach 1:
The display applies different visual qualities to different warnings based on their criticality. Critical warnings are displayed in prominent positions with distinct visual characteristics, while non-critical warnings are displayed with reduced visual emphasis. This allows operators to immediately identify critical conditions without scanning through all warnings equally.
Solution Approach 2:
The system pre-establishes a priority hierarchy and display configuration before warnings occur. The controller is programmed with predetermined criteria for prioritizing warnings and determining their display locations. When warnings are generated, they are automatically placed in the appropriate positions according to this pre-established hierarchy, eliminating the need for real-time decision-making about display arrangement.
Data Source
AI summary
A vehicle display system includes a plurality of sensors mounted to a vehicle for sensing vehicle operating conditions and a vehicle display controller in communication with the sensors. The controller is capable of receiving signals transmitted from the sensors and prioritizing vehicle operating conditions indicated by received signals according to predetermined criteria. The system further includes a display screen adapted to display warning signals according to signals received from the vehicle display controller. The display screen arranges the displayed warning signals according to one of a plurality of display masks. The display mask is determined by the number of displayed warning signals. The display mask has a first warning signal display area for displaying warning signals having priorities greater than a predetermined level and a second warning signal display area for displaying warning signals having priorities less than the predetermined level.