Road Marking-Aware AEB Warning Timing for Driver Assistance
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Solution Overview
Problem
Many drivers ignore road markings, leading to increased collision risks due to unawareness of their meanings, and existing driver assistance systems do not effectively utilize these markings to adjust braking and warning timings.
Innovation Solution
A vehicle-mounted camera system identifies lane marks and road markings, generating a traveling assist deceleration signal and adjusting the autonomous emergency braking (AEB) warning timing based on marking information, and provides visual and auditory notifications to drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AEB system uses a fixed warning timing, then the system operation is simple, but the driver awareness of potential collision risks is reduced
Solution Approach 1:
The patent applies dynamics by making the AEB warning timing adjustable rather than fixed. The control unit dynamically changes the warning timing based on detected road markings, allowing the system to adapt to different driving scenarios while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent changes the timing parameter of the AEB warning based on road marking detection. When specific road markings are detected, the control unit advances the warning timing, thereby improving driver awareness without requiring complex system restructuring.
2Reliability
If the AEB warning timing is advanced, then the driver awareness of potential collision risks is improved, but the driver discomfort due to unexpected braking increases
Solution Approach 1:
The patent applies preliminary action by providing an advance notification to the driver before the AEB warning is activated. When road markings are detected, the system first notifies the driver through the display unit, allowing the driver to prepare mentally before the actual warning and potential braking occurs.
Solution Approach 2:
The system provides feedback to the driver through the display unit, informing them of the advanced warning timing caused by detected road markings. This feedback mechanism helps manage driver expectations and reduces discomfort by making the system's behavior transparent and predictable.
3Reliability
If the system detects road markings and adjusts warning timing, then the safety is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by using the existing camera and control unit for multiple purposes: capturing images for road marking detection, processing the images to identify markings, and adjusting AEB timing based on the detection results. This multi-functionality approach improves safety without requiring entirely separate dedicated systems.
Solution Approach 2:
The control unit serves as an intermediary that integrates the camera input, road marking detection logic, and AEB timing adjustment. Rather than adding complex dedicated hardware, the existing control unit mediates between the detection system and the braking system, managing the integration efficiently.
Data Source
AI summary
Disclosed is an apparatus for driver assistance. The disclosed apparatus includes a camera that is mounted on a vehicle, is provided to have a field of view outside the vehicle, and provides image data; and a control unit that identifies lane marks on a road surface and a road marking between the lanes based on processing the image data, provides lane information and marking information, and provides a traveling assist deceleration signal for controlling a braking device of the vehicle based on the lane information and the marking information.