Vehicle Warning Timing Control for Passenger Safety
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Solution Overview
Problem
Conventional driver supporting devices fail to account for individual driving characteristics and passenger presence, leading to inadequate warnings that may not prevent collisions effectively, especially for passengers who are not aware of the traffic situation.
Innovation Solution
A driver supporting device that adjusts warning timing based on the presence of passengers, using sensors to detect passengers and their line of sight, and outputs warnings at an advanced timing for passengers relative to the driver, ensuring both the driver and passengers receive appropriate alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning timing is set based on standard collision risk assessment, then collision prevention for the driver is improved, but passenger safety and comfort are not adequately addressed
Solution Approach 1:
The warning system is segmented into two distinct timing modes: a first timing for urging the driver to brake and a second timing for notifying passengers. This segmentation allows the system to address different user groups (driver and passenger) with appropriately timed warnings, resolving the contradiction between driver collision prevention and passenger awareness.
Solution Approach 2:
The second warning timing is set to advance relative to the first timing when passengers are detected. This preliminary action ensures passengers receive warning notifications before the driver is urged to brake, allowing passengers to mentally prepare for the upcoming braking event and reducing their anxiety and discomfort.
2Device complexity
If warning is output at the same timing regardless of passenger presence, then system simplicity is maintained, but passenger comfort and safety perception deteriorate
Solution Approach 1:
The warning timing control dynamically adjusts based on passenger detection results. When passengers are detected, the system switches to the second timing mode with advanced warning; when no passengers are detected, it uses the standard first timing. This dynamic adaptation resolves the contradiction by adding complexity only when necessary (when passengers are present) while maintaining simplicity in other cases.
3Ease of operation
If driver characteristics are considered for warning timing, then driver comfort is improved, but passenger safety needs are not addressed
Solution Approach 1:
The warning system segments its function into driver-oriented timing (first timing based on driver characteristics and collision risk) and passenger-oriented timing (second timing advanced relative to the first). This segmentation allows the system to simultaneously optimize for driver comfort through characteristic-based timing while ensuring passenger safety through advance notification.
Solution Approach 2:
The advanced second timing for passengers acts as a preliminary action that complements the driver-characteristic-based first timing. By notifying passengers in advance of the driver-oriented warning, the system ensures passenger safety and comfort without compromising the driver comfort optimizations achieved through characteristic-based timing.
Data Source
AI summary
Disclosed is a driver supporting device including: a warning timing control unit for setting a timing at which to output warning data in accordance with the existence or non-existence of a passenger when it is determined that a warning target which possibly collides with a driver's vehicle exists ahead of the driver's vehicle, and a warning data outputting unit for outputting the warning data in accordance with the timing set by the warning timing control unit.