Driving Assistance for Safe Bicycle Overtaking Distance Alerts
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Solution Overview
Problem
Drivers often struggle to maintain a safe distance and speed when overtaking bicycles or other non-motorized vehicles, leading to potential accidents and violations of traffic laws due to inaccurate judgments and varying regulations.
Innovation Solution
A driving assistance system that uses sensors and communication devices to detect vehicles ahead, calculate safe passing distances and speeds, and provide visual, auditory, and haptic alerts to ensure safe overtaking, while also considering geo-location and traffic regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the driver makes an approximate guess to maintain the specified safe distance, then the driving operation is simple, but the accuracy of distance judgment is insufficient leading to potential accidents or violations
Solution Approach 1:
The patent replaces the driver's manual distance judgment (mechanical/visual estimation) with an automated optical sensing system using cameras and image processing algorithms. The system captures images of the overtaken vehicle, calculates its length, and determines safe passing distances automatically, substituting human visual estimation with machine-based measurement for higher precision.
Solution Approach 2:
The patent introduces an intermediary driving assistance system that acts as a mediator between the driver and the overtaking maneuver. This system includes a camera to detect the overtaken vehicle, a processor to calculate safe distances, and a display to present this information to the driver, thereby bridging the gap between complex safety requirements and simple driver operation.
2Reliability
If the driver maintains specified safe distance and speed, then the safety is improved, but the driving operation becomes more complex due to varying traffic rules in different jurisdictions
Solution Approach 1:
The patent adapts safety parameters (such as safe passing distance thresholds) based on the detected type of overtaken vehicle. The system identifies whether the vehicle is a bicycle, motorcycle, car, or truck, and automatically adjusts the required safe distance parameter accordingly. This allows the system to maintain high safety standards while adapting to different vehicle types without requiring the driver to manually adjust settings.
Solution Approach 2:
The driving assistance system performs self-service by automatically detecting the overtaken vehicle type, calculating the appropriate safe distance, and presenting the information to the driver without requiring manual input. The system autonomously manages the complexity of varying traffic rules across different jurisdictions by implementing default safe distance criteria that adapt to the detected vehicle type.
3Productivity
If the driver overtakes at high speed, then the productivity is improved, but the safety is compromised as the bicycle rider may be intimidated and accidents may occur
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors the relative speed between the overtaking and overtaken vehicles, calculates the time required to complete the pass, and compares it against safe thresholds. The system provides real-time feedback to the driver through visual displays, indicating whether the current speed maintains safe distancing. This allows the driver to maintain higher speeds when safe, while automatically reducing speed when safety criteria are not met.
Solution Approach 2:
The system dynamically adjusts the safe passing criteria based on real-time conditions including the type of overtaken vehicle, relative speed, and calculated pass time. Rather than using fixed speed limits, the system adaptively determines safe operating parameters, allowing higher speeds for more robust vehicles like trucks while maintaining stricter criteria for vulnerable road users like cyclists, thereby optimizing both productivity and safety.
Data Source
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AI summary
Various aspects of a system and method to provide driving assistance to safely overtake a vehicle are disclosed herein. In accordance with an embodiment, an electronic control unit used in a first vehicle is configured to detect a second vehicle in front of the first vehicle. A first position associated with the first vehicle and a second position associated with the detected second vehicle is determined for a first time instance. It may be determined whether a lateral distance between the determined first position and the determined second position is below a pre-defined threshold distance. A first alert is generated when the determined lateral distance is below the pre-defined threshold distance.