Extended Forward Collision Warning Using Wireless Vehicle Communication
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Solution Overview
Problem
Existing vehicle collision warning systems are inadequate in dense traffic conditions, particularly when brake lights are obscured or malfunctioning, leading to potential collisions due to insufficient or delayed warnings for slow-moving remote vehicles.
Innovation Solution
A method and system that utilize on-board sensors and wireless communication to detect slow remote vehicles, track the preceding vehicle, and provide timely audio and visual collision warnings to the host vehicle driver by confirming the remote vehicle's impact on lane speed through deceleration detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brake lights are used to warn other drivers of slowing down, then other drivers can be alerted to avoid collision, but the warning may be insufficient or delayed when brake lights are obscured, malfunctioning, or not visible in dense traffic conditions
Solution Approach 1:
The patent introduces an intermediary wireless communication system that transmits braking status information between vehicles. Instead of relying solely on optical brake lights, the system uses wireless signals as an intermediary carrier to convey traffic condition information, ensuring reliable transmission even when visual signals are obscured or malfunctioning.
Solution Approach 2:
The system combines multiple functions into a unified collision avoidance system that includes wireless communication, sensor detection, and multi-mode warning capabilities. This multi-functional approach ensures comprehensive coverage of various traffic conditions and failure scenarios, making the system universally applicable across different situations.
2Reliability
If adaptive cruise control mechanisms are used to maintain safe distance from preceding vehicle, then safe following distance can be maintained, but the system does not react to remote vehicles at significantly slow speeds
Solution Approach 1:
The patent extends the detection range from the immediate preceding vehicle to remote vehicles further ahead in the traffic flow. By adding this spatial dimension to the detection scope, the system can identify slow-moving vehicles at a distance and trigger appropriate warnings, enhancing adaptability to diverse traffic scenarios.
Solution Approach 2:
The system performs preliminary detection and warning when slow remote vehicles are identified, before the host vehicle needs to react. This advance notification allows the driver to prepare for potential speed adjustments, improving the system's responsiveness to varying traffic conditions.
3Reliability
If emergency electronic brake light mechanisms are used to warn of imminent collision, then hard braking of preceding vehicle can be detected, but the system does not react to remote vehicles at significantly slow speeds
Solution Approach 1:
The system expands the detection scope from the immediate preceding vehicle to include remote vehicles at a distance. This spatial extension allows the system to detect slow-moving vehicles that are not in direct contact with the host vehicle, enhancing the versatility of emergency warning capabilities.
Solution Approach 2:
The system provides preliminary warnings when slow remote vehicles are detected, before the situation escalates to an imminent collision. This early detection and warning mechanism allows for gradual driver response and prevents sudden emergency braking.
Data Source
AI summary
A method and system generates a collision warning to a driver of a host vehicle. The system includes an on-board sensor of the host vehicle to detect presence of a preceding vehicle, wireless communication circuitry to establish wireless communication with a remote vehicle, and processing circuitry to detect existence of a slow remote vehicle ahead of the host vehicle, track an immediately preceding vehicle ahead of the host vehicle, confirm that the slow remote vehicle is affecting the host vehicle's lane speed of traffic by detecting that the immediately preceding vehicle is decelerating. When it is determined that, that the remote vehicle is sow, display an information message indicating the existence of the slow remote vehicle, and output, when the remote vehicle is slow and the preceding vehicle is decelerating, the collision warning as an audio sound and a visual message.