Adaptive Vehicle Start Timing for Driver Attention Recovery
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Solution Overview
Problem
Existing driving support systems may reduce driver attention during long waiting periods before starting to follow a preceding vehicle, potentially leading to delayed responses when the own vehicle is started.
Innovation Solution
A driving support method and device that calculates the elapsed time from when the own vehicle stops to when the preceding vehicle starts, and adjusts the timing to start the own vehicle based on this elapsed time, ensuring a longer delay for longer elapsed times to restore driver attention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the own vehicle automatically follows the preceding vehicle after a long waiting period, then the driver's attention may be reduced, but the automatic following function improves convenience
Solution Approach 1:
The system performs preliminary action by detecting the driver's start requests during the waiting period and storing this information before the automatic following function is activated. This allows the system to prepare appropriate notifications or warnings in advance, ensuring the driver's attention is restored before the vehicle automatically starts following the preceding vehicle.
Solution Approach 2:
The system implements feedback by continuously monitoring the driver's start requests and using this information to adjust the behavior of the automatic following function. The detected number of start requests feeds back into the control logic, allowing the system to provide appropriate warnings or notifications to restore driver attention before executing the automatic following action.
2Measurement precision
If the start permission period is extended to detect multiple start requests, then the system can better understand driver intent, but the waiting period increases and driver attention may be lost
Solution Approach 1:
The system applies partial action by detecting only the necessary number of start requests within a reasonable time frame rather than waiting for an indefinite period. The start permission period is set to a predetermined length that is sufficient to detect driver intent but not so long as to cause loss of driver attention, achieving a balance between detection precision and time efficiency.
3Productivity
If the own vehicle starts immediately when the preceding vehicle starts, then followability is improved, but the driver cannot respond quickly if attention was reduced during waiting
Solution Approach 1:
The system applies preliminary anti-action by detecting the driver's start requests during the waiting period and using this information to prevent premature automatic starting. The control unit adjusts the timing of the automatic following function based on the detected start requests, ensuring that the vehicle does not start until the driver's attention has been restored, thereby counteracting the potential harm of reduced driver responsiveness.
Data Source
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AI summary
A driving support method and a driving support device set a timing to start an own vehicle based on an elapsed time from a stop of the own vehicle to a start of a preceding vehicle existing in front of the own vehicle, wherein the timing in case that the elapsed time is long is later than the timing in case that the elapsed time is short, and start the own vehicle at the set timing by following the preceding vehicle.