Work Vehicle State Display Using Normalized Urgency Ranking
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Solution Overview
Problem
Existing state quantity display systems for work vehicles require a large display area and are not suitable for small-sized vehicles with limited space for information display.
Innovation Solution
A state quantity display system that includes a detection value receiver, a limit value manager, an urgency degree calculator, and a display controller, which selects and displays the detection value with the highest notification-urgency degree, using a small display area and normalizing detection values based on limit values to facilitate comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all state quantity detection values are displayed on the meter panel, then the driver can access complete information, but the display area becomes too large for small-sized work vehicles
Solution Approach 1:
The patent extracts only the most critical state quantity information for display on the meter panel by comparing detection values against predetermined thresholds. Only parameters exceeding thresholds (indicating urgent attention needed) are displayed, while less critical information is omitted from the physical display to reduce area requirements.
Solution Approach 2:
Different display strategies are applied to different state quantities based on their urgency levels. Critical parameters (exceeding thresholds) receive prominent display treatment, while non-critical parameters are suppressed or minimized, creating localized quality variations in information presentation to optimize limited display space.
2Reliability
If multiple state quantities are displayed simultaneously, then comprehensive monitoring is achieved, but driver distraction increases due to excessive information
Solution Approach 1:
The system extracts and displays only state quantities that exceed predetermined thresholds, filtering out normal operating conditions. This reduces the number of displayed parameters to only those requiring driver attention, thereby maintaining monitoring comprehensiveness while minimizing driver distraction from excessive information.
Solution Approach 2:
Rather than displaying all state quantities continuously (excessive action), the system selectively displays only those parameters that partially meet the criterion of exceeding thresholds. This partial display approach reduces information overload while maintaining adequate monitoring coverage for critical parameters.
3Loss of information
If detection values with different scales are displayed together, then all state quantities are visible, but comparison of urgency levels becomes difficult
Solution Approach 1:
The patent transforms detection values into a standardized urgency assessment framework by comparing them against predetermined thresholds. This parameter transformation converts diverse state quantities (temperature, pressure, speed with different units and scales) into a common urgency metric, enabling easy comparison of relative importance across different parameters.
Data Source
AI summary
A state quantity display system for displaying a quantity of a state of a work vehicle includes a detection value receiver 51 configured to receive information on a detection value of a state quantity of each of a plurality of components of a work vehicle; a limit value manager 72 configured to manage at least one limit value associated with the state quantity; an urgency degree calculator configured to normalize the detection value based on the at least one limit value to calculate a notification-urgency degree; and a display controller 74 configured to select from among the detection values a first detection value for which the notification-urgency degree is highest and cause a state quantity display section 80 to display the first detection value.