Motorcycle Rear Sensor Warning for Short Time-Gap Detection
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Solution Overview
Problem
Motorcycle drivers often fail to notice vehicles approaching from behind, leading to potential dangerous situations due to limited rearview focus, which can result in acute danger if braking occurs suddenly.
Innovation Solution
A method utilizing a rear-facing sensor system on a motorcycle to detect vehicles and calculate a speed-dependent time gap, providing distance information to the driver through a human-machine interface when the time gap is smaller than a predefined value, warning of latent dangers and preventing acute hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the rider focuses on the road ahead, then the riding performance and speed control are improved, but the awareness of rear vehicles is lost
Solution Approach 1:
A sensor system acts as an intermediary to detect vehicles in the rear space and provide this information to the rider through a display device, eliminating the need for the rider to directly monitor rearview mirrors while maintaining awareness of surrounding traffic
2Productivity
If the distance to following vehicle is reduced, then the productivity and responsiveness are improved, but the safety risk increases
Solution Approach 1:
The safety distance threshold is made dynamic rather than fixed, adjusting based on the motorcycle's current speed. At higher speeds, the system allows smaller distances to maintain productivity, while at lower speeds it enforces larger safety margins, optimizing both responsiveness and safety across different operating conditions
Solution Approach 2:
The system changes the parameter of safety distance based on speed conditions, allowing the minimum safe distance to vary dynamically with the motorcycle's velocity, thus balancing productivity and safety requirements
3Reliability
If the warning system provides continuous alerts, then the safety awareness is improved, but the rider distraction increases
Solution Approach 1:
The system applies partial action by providing warnings only when specific conditions are met (distance below threshold), rather than continuous alerts. This selective warning approach maintains safety awareness while minimizing unnecessary distractions to the rider
Solution Approach 2:
The system serves itself by automatically detecting rear vehicles, calculating distances, and determining when warnings are necessary, eliminating the need for the rider to manually monitor and interpret continuous traffic conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively informs drivers of latent dangers, allowing them to avoid maneuvers that could lead to acute danger, thereby enhancing safety by providing timely warnings of approaching vehicles.
Implementation Method 1
The sensor system may, in particular, include a radar sensor
Data Source
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AI summary
The present invention relates to a method for operating a motorcycle (100) wherein distance information (120) is provided when a time gap (116) between the motorcycle (100) and a vehicle (106) in a rear space (112) of the motorcycle (100) is smaller than a predefined time value (118).