Driver Abnormality Notification Control After Vehicle Stop
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Solution Overview
Problem
Existing vehicle control systems lack the ability to flexibly continue or terminate abnormality notification processing after vehicle stop control, potentially causing annoyance or safety concerns depending on the situation.
Innovation Solution
A vehicle control system that includes a driver abnormality detection device, information acquisition device, and vehicle control device, which determines based on driving environment information whether to continue or terminate abnormality notification processing after vehicle stop control, using surrounding situation, vehicle state, and driving operation information to make informed decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If abnormality notification processing is continued after vehicle stop control termination, then safety is improved by ensuring notifications are not prematurely stopped, but occupants and people around the vehicle experience annoyance due to unnecessary continuous notifications
Solution Approach 1:
The notification termination condition is made dynamic by introducing time-based evaluation. The system evaluates whether to terminate notifications based on the elapsed time since vehicle stop control termination, allowing the notification state to adapt over time rather than using a fixed termination rule. This resolves the contradiction by transitioning from a static termination approach to a dynamic one that considers temporal context.
Solution Approach 2:
The system changes the parameter of notification termination by introducing a time threshold parameter. When the elapsed time since vehicle stop control termination exceeds a predetermined threshold, the notification termination condition becomes satisfied, allowing termination. This parameter-based approach enables flexible control of notification duration to balance safety and annoyance prevention.
2Object-affected harmful factors
If abnormality notification processing is terminated together with vehicle stop control termination, then annoyance is reduced by stopping unnecessary notifications, but safety may be compromised by prematurely stopping important safety notifications
Solution Approach 1:
The system performs preliminary evaluation of the notification termination condition before actually terminating notifications. By evaluating whether the termination condition is satisfied (based on time elapsed since vehicle stop control termination) before executing termination, the system ensures that notifications are not stopped prematurely while also not continuing unnecessarily long.
3Measurement precision
If the vehicle control system continuously monitors driving environment information to make informed decisions about notification termination, then the accuracy of termination timing is improved, but the complexity of the control system increases
Solution Approach 1:
The system extracts only the essential element needed for accurate termination timing - the time information since vehicle stop control termination - from the complex driving environment information. By focusing on this single critical parameter rather than processing all available sensor data, the system achieves precise termination timing while minimizing control system complexity.
Data Source
AI summary
A vehicle control system installed on a vehicle includes: a driver abnormality detection device configured to detect abnormality of a driver of the vehicle; a vehicle control device configured to execute vehicle stop control that stops the vehicle and abnormality notification processing that activates a notification device, when the abnormality of the driver is detected; and an information acquisition device configured to acquire driving environment information including at least one of surrounding situation information indicating a situation around the vehicle, vehicle state information indicating a state of the vehicle, and driving operation information indicating a driving operation by the driver. The vehicle control device determines, based on the driving environment information, whether to continue or terminate the abnormality notification processing after termination of the vehicle stop control.