Vehicle Sensor Malfunction Alerts Based on Target Road Likelihood
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Solution Overview
Problem
Temporary malfunctions of external sensors in vehicles executing driving assistance or autonomous driving control can cause annoyance and anxiety to occupants when the vehicle is not on the target road.
Innovation Solution
A notification device that recognizes sensor malfunctions and evaluates the likelihood of the vehicle traveling on the target road based on vehicle position, route, travel history, and schedule information, adjusting the notification to a reduced level or omitting it when the vehicle is unlikely to be on the target road.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the notification device notifies the occupant about all external sensor malfunctions, then the reliability of the system is improved, but the occupant experiences annoyance and anxiety when the vehicle is not on the target road
Solution Approach 1:
The notification control unit applies different notification intensities to different operational contexts. When the vehicle is determined to be on the target road, full notifications are provided. When off the target road, notifications are suppressed or reduced. This local differentiation resolves the contradiction by tailoring the notification quality to the specific operational location.
Solution Approach 2:
The notification system dynamically adjusts its behavior based on real-time vehicle position data and target road information. The notification control unit continuously evaluates whether the vehicle is on the target road and modifies notification output accordingly, transitioning between full notification and suppressed notification states based on operational context.
2Object-affected harmful factors
If the notification device suppresses malfunction notifications when the vehicle is not on the target road, then the occupant annoyance is reduced, but the reliability of malfunction notification is compromised
Solution Approach 1:
The notification control unit acts as an intermediary between the malfunction recognition unit and the occupant. It receives malfunction signals, evaluates the operational context (vehicle position relative to target road), and intelligently determines the appropriate notification level. This intermediary function allows the system to filter out spurious notifications while preserving critical alerts.
Solution Approach 2:
The system uses feedback from vehicle position data and target road information to continuously adjust notification behavior. The notification control unit monitors operational context and provides feedback-based modulation of notification output, ensuring that notifications are suppressed only when appropriate while maintaining reliability when needed.
Data Source
AI summary
A notification device of a vehicle comprising a malfunction recognition unit configured to recognize a malfunction of an external sensor used for driving assistance control or autonomous driving control; and a notification control unit configured to notify an occupant of the vehicle about the malfunction of the external sensor when a malfunction of the external sensor is recognized. The notification control unit evaluates whether the vehicle is likely to travel on a target road based on a vehicle position, a target route, or a travel history of the vehicle; and when the vehicle is not likely to travel on the target road, notifies the occupant of the vehicle about the malfunction of the external sensor in a reduced manner compared to a manner when the vehicle is likely to travel on the target road, or does not notify the occupant of the vehicle about the malfunction of the external sensor.