Approaching Vehicle Alert Control for Passing Lane Driving
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Solution Overview
Problem
Conventional driving supporting apparatuses do not perform approaching notifications when a host vehicle is traveling in a passing lane with a preceding vehicle, leading to potential driver annoyance and increased traffic congestion, as the notification can be perceived as unnecessary if the host vehicle cannot change lanes.
Innovation Solution
A driving supporting apparatus with a control unit that performs approaching notifications only when specific conditions are met, including the presence of an adjacent lane and the absence of an adjacent vehicle, to minimize unnecessary notifications and allow appropriate driver actions, such as lane changes or acceleration, thereby reducing driver stress and congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the approaching notification is performed when the host vehicle is traveling in a passing lane with a preceding vehicle, then the possibility that traffic congestion occurs can be decreased, but the driver of the host vehicle may feel annoyed by the notification since the host vehicle cannot change lanes
Solution Approach 1:
The notification control unit performs approaching notifications selectively based on local conditions: when the host vehicle is in a passing lane without a preceding vehicle, notifications are enabled to improve traffic flow; when a preceding vehicle is present, notifications are disabled to avoid driver annoyance. This localized adaptation of notification behavior resolves the contradiction between improving traffic flow and preventing driver annoyance.
Solution Approach 2:
The system dynamically adjusts notification behavior based on real-time detection of preceding vehicles. The notification control unit changes the notification state from enabled to disabled depending on whether a preceding vehicle is detected, allowing the system to adapt to varying traffic conditions and resolve the contradiction between traffic flow improvement and driver comfort.
2Object-affected harmful factors
If the approaching notification is not performed when the host vehicle is traveling in a passing lane with a preceding vehicle, then the driver annoyance can be decreased, but the possibility that traffic congestion occurs increases
Solution Approach 1:
The system applies different notification policies to different local situations: notifications are suppressed only in the specific case where a preceding vehicle blocks lane changes, while remaining active in other passing lane scenarios. This targeted approach minimizes driver annoyance only where necessary while preserving traffic flow benefits elsewhere.
Solution Approach 2:
The notification control unit dynamically switches between notification and non-notification modes based on the presence of preceding vehicles, enabling the system to balance driver comfort and traffic flow efficiency by adapting to real-time traffic conditions.
3Productivity
If the approaching notification is performed when the host vehicle cannot change lanes, then the notification frequency can be increased, but the driver may feel annoyed by unnecessary notifications
Solution Approach 1:
The notification control unit uses feedback from the detection unit about preceding vehicle presence to control notification output. When a preceding vehicle is detected, the system receives feedback that lane changes are blocked and automatically suppresses notifications, preventing driver annoyance from unnecessary alerts while maintaining high notification frequency when lane changes are possible.
Data Source
AI summary
A driving supporting apparatus comprises a notification device that performs a notification to a driver of a host vehicle; and a control unit capable of causing the notification device to perform an approaching notification to notify the driver that a following vehicle present behind the host vehicle has approached the host vehicle, when the following vehicle satisfies a predetermined approaching condition. The control unit is configured to cause the notification device to perform the approaching notification, when the following vehicle satisfies the approaching condition in a case where an adjacent lane is present, if a permission condition depending on presence or absence of an adjacent vehicle traveling in the adjacent lane is satisfied. The permission condition used when the adjacent vehicle is present has been set to a condition that is harder to be satisfied than a condition set as the permission condition used when the adjacent vehicle is not present.