Driver Emotion-Adaptive Assistance Control for Unsafe Driving States
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Solution Overview
Problem
Existing driving assistance systems face challenges in accurately determining the emotional state of drivers due to individual variations and changes in physical conditions, making it difficult to provide appropriate assistance.
Innovation Solution
A driving assistance apparatus equipped with a traveling state detector, emotion determination processor, and driving assistance processor that continuously monitors and updates reference values for emotional state parameters, enabling real-time emotion determination and adaptive assistance control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fixed threshold values are used for emotion determination, then the determination process is simple, but accuracy deteriorates due to individual variations and changes in physical conditions
Solution Approach 1:
The patent applies dynamics by transitioning from fixed threshold values to dynamically updated reference values that adapt to individual drivers. The emotion determination processor updates reference values based on accumulated physical information over time, allowing the system to adapt to individual variations and changes in physical conditions while maintaining determination accuracy
Solution Approach 2:
The patent implements feedback by using accumulated past physical information to update reference values. The system continuously monitors physical information, compares it with reference values, and refines these reference values based on accumulated data, creating a closed-loop feedback mechanism that improves accuracy without requiring overly complex algorithms
2Measurement precision
If individual-specific reference values are used, then determination accuracy is improved, but the time required for data accumulation and processing increases
Solution Approach 1:
The patent applies preliminary action by establishing initial reference values that can be used immediately for emotion determination. These reference values are then progressively updated as physical information accumulates, allowing the system to function effectively from the start while continuing to improve accuracy over time without requiring extensive initial data collection periods
3Adaptability or versatility
If frequent updates of reference values are performed, then adaptation to individual variations is improved, but processing load increases
Solution Approach 1:
The patent applies periodic action by updating reference values at predetermined intervals or when specific conditions are met, rather than continuously. This periodic update approach allows the system to adapt to individual variations effectively while avoiding excessive processing load and energy consumption that would result from continuous updates
Data Source
AI summary
A driving assistance apparatus to be applied to a vehicle includes a traveling state detector, an emotion determination processor, and a driving assistance processor. The traveling state detector is configured to detect a traveling state of the vehicle. The emotion determination processor is configured to determine an emotion of an occupant of the vehicle. The driving assistance processor is configured to perform driving assistance control including one or both of information presentation to the occupant and traveling assistance control on the vehicle, in accordance with an output of one or both of the traveling state detector and the emotion determination processor. The emotion determination processor is configured to determine a driving unsuitable emotion by comparing, with a predetermined threshold, a difference between a reference value and a current value of a parameter indicating a physical state of the occupant, and to update the reference value at each driving cycle.