Motorcycle Safety Device for Autonomous Vehicle Course Change
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Solution Overview
Problem
Autonomous vehicles often fail to detect small-sized vehicles, such as motorcycles, leading to potential collisions during high-speed maneuvers on highways, as existing detection systems may incorrectly identify the presence or absence of these vehicles, especially under poor environmental conditions.
Innovation Solution
A prevention safety device for small-sized vehicles equipped with a rear vehicle detection unit, determining unit, and transmitting unit, which uses a combination of cameras, milliwave radar, and vehicle-to-vehicle communication to detect and transmit vehicle information to adjacent autonomous vehicles before changing course, ensuring recognition and preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If autonomous vehicles use camera and radar devices to detect forward vehicles, then detection capability is improved, but small-sized vehicles such as motorcycles may still not be detected or may be incorrectly detected
Solution Approach 1:
The patent introduces vehicle-to-vehicle communication as an intermediary mechanism. The small-sized vehicle (motorcycle) actively transmits its own information to the autonomous vehicle, serving as a mediator to bridge the detection gap. This allows the autonomous vehicle to receive information about small-sized vehicles that its sensors cannot reliably detect.
Solution Approach 2:
The small-sized vehicle performs preliminary action by proactively transmitting its information to the autonomous vehicle before any potential collision scenario develops. This advance notification allows the autonomous vehicle to be aware of the small-sized vehicle's presence and plan appropriate responses.
2Reliability
If autonomous vehicles perform sudden braking or sharp turn at high speed, then collision avoidance capability is improved, but secondary disasters may occur
Solution Approach 1:
The system performs preliminary action by having the small-sized vehicle transmit its information in advance, allowing the autonomous vehicle to detect and plan for the small-sized vehicle's presence before entering high-speed maneuvering scenarios. This advance awareness enables more controlled and safer response actions.
Solution Approach 2:
The vehicle-to-vehicle communication establishes a feedback loop where the small-sized vehicle continuously transmits its state information to the autonomous vehicle. This real-time feedback allows the autonomous vehicle to monitor the situation and adjust its maneuvers to avoid both collision with the small-sized vehicle and secondary disasters from excessive maneuvers.
3Productivity
If multiple small-sized vehicles travel adjacent to autonomous vehicle, then traffic flow is improved, but detection accuracy deteriorates as autonomous vehicle may incorrectly detect the state
Solution Approach 1:
Each small-sized vehicle acts as an independent intermediary by transmitting its own information directly to the autonomous vehicle. This eliminates the need for the autonomous vehicle to rely solely on sensor detection and image processing, which struggle with multiple adjacent small-sized vehicles. The communication-based information transfer provides clear, unambiguous data about each vehicle's presence and state.
Data Source
AI summary
A prevention safety device in course change of small-sized vehicle includes a rear vehicle detector, a detection state determining unit, and a vehicle's own information transmitting unit. The rear vehicle detector is configured to detect a rear vehicle travelling at a rear of one's own vehicle. The detection state determining unit is configured to determine whether the rear vehicle detects one's own vehicle or not when the rear vehicle detected by the rear vehicle detector is an autonomous vehicle. The vehicle's own information transmitting unit is configured to transmit vehicle's own information to the rear vehicle immediately before one's own vehicle changes a course when the detection state determining unit determines that the rear vehicle does not detect one's own vehicle.