Overtaking Assistance Alerts for Safe Bicycle Passing
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Solution Overview
Problem
Drivers face challenges in maintaining a safe distance and speed when overtaking bicycles or non-motorized vehicles, leading to potential accidents and violations of traffic laws, as existing systems lack accurate judgment and adaptability to varying traffic rules.
Innovation Solution
A system and method that utilizes an image-capturing unit, ECU, and wireless communication to detect vehicles ahead, providing alerts via HUD or AR-HUD to ensure safe overtaking by determining safe distances and speeds, and communicating with other vehicles through DSRC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the driver makes an approximate guess to maintain the specified safe distance, then the driver can overtake the bicycle, but the accuracy of maintaining the safe distance cannot be ensured
Solution Approach 1:
The patent replaces the driver's manual estimation method with an automated electronic measurement system using cameras and ECUs to calculate and display the actual safe distance, eliminating the need for mechanical judgment while maintaining system simplicity through software-based solutions
Solution Approach 2:
The patent introduces an intermediary display device that visually presents the measured safe distance information to the driver, acting as a mediator between the complex measurement system and the driver's decision-making process
2Productivity
If the driver overtakes the bicycle at high speed, then the productivity of the road is improved, but 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 and distance between the motor vehicle and bicycle, then provides real-time visual feedback to the driver through the display device, allowing the driver to adjust speed to avoid intimidating the rider while maintaining efficient road use
Solution Approach 2:
The patent employs dynamic adjustment of overtaking parameters by continuously calculating the safe distance and speed based on real-time conditions, allowing the system to adapt between maintaining higher speeds for productivity and reducing speed to prevent intimidation, rather than using fixed speed limits
3Reliability
If the driver follows traffic rules to maintain safe distance and speed limit, then the safety is improved, but the driver's time is consumed due to varying rules in different areas
Solution Approach 1:
The patent enables the system to automatically perform the function of researching and applying different traffic rules based on the driver's location, eliminating the need for the driver to manually research varying local regulations while ensuring continuous compliance with safety standards
4Reliability
If the driver maintains a specified safe distance from the bicycle, then the safety is improved, but the time required for overtaking increases
Solution Approach 1:
The patent uses dynamic calculation of the safe distance based on real-time relative speed and position data, allowing the system to determine the minimum necessary safe distance at each moment, thereby reducing overtaking time while maintaining safety requirements rather than using fixed conservative distance margins
Data Source
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.