Vehicle Collision Warning System Towing Mode Logic
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Solution Overview
Problem
Existing vehicle collision warning systems often provide false alerts when a trailer is towed, as they mistakenly detect the trailer in the rear-center area as an impending collision, leading to unnecessary alerts.
Innovation Solution
A vehicle collision warning system with sensors monitoring the rear-center and rear-lateral-corner areas, a collision warning electronic control unit, and an alarm control module that differentiates between standard and towing modes, ensuring alerts are only provided for rear-lateral-corner area impending collisions during towing and not for rear-center area collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the collision warning system monitors the rear-center area using the first sensor, then the system can detect rear-center area impending collisions, but the system generates false alerts when a trailer is towed behind the vehicle
Solution Approach 1:
The system dynamically adjusts the alert generation logic based on the detected operating mode. When towing mode is detected, the system modifies its behavior to suppress alerts from rear-center area detections, while maintaining alert generation for rear-lateral-corner area detections. This dynamic adaptation resolves the contradiction by making the system's response conditional on the operational context.
Solution Approach 2:
The system changes the alert generation parameter based on the operating mode. In towing mode, the alert threshold for rear-center area detections is effectively raised to prevent false alerts, while the threshold for rear-lateral-corner area detections remains sensitive. This parameter change allows the system to maintain reliability without generating false alerts during towing operations.
2Reliability
If the alarm control module provides alerts for all detected impending collisions in standard mode, then the system ensures comprehensive safety monitoring, but the system produces unnecessary alerts during towing operations
Solution Approach 1:
The alarm control module dynamically switches between two alert generation strategies based on the operating mode. In standard mode, it provides comprehensive alerts for all detected collisions. In towing mode, it selectively provides alerts only for rear-lateral-corner area collisions. This dynamic switching maintains safety monitoring coverage while improving operator alert accuracy during towing operations.
Solution Approach 2:
The system applies different alert generation quality to different detection zones based on operating mode. During towing, rear-center area detections receive suppressed alert quality (no alert), while rear-lateral-corner area detections receive full alert quality. This local differentiation resolves the contradiction by tailoring the alert response to the specific detection zone and operational context.
3Device complexity
If the system uses a single sensor for rear area monitoring, then the device complexity is reduced, but the system cannot differentiate between rear-center and rear-lateral-corner area collisions
Solution Approach 1:
The monitoring system is segmented into two distinct sensor zones: the first sensor monitors the rear-center area while the second sensor monitors the rear-lateral-corner areas. This spatial segmentation enables the system to differentiate between collision locations with improved measurement precision while maintaining manageable device complexity through functional specialization.
Solution Approach 2:
Each sensor serves multiple functions: the first sensor detects both trailers and obstacles in the rear-center area, while the second sensor detects both trailers and obstacles in the rear-lateral-corner areas. This multi-functionality allows the system to achieve precise collision area differentiation without proportionally increasing device complexity, as each sensor handles multiple detection tasks within its zone.
Data Source
AI summary
A vehicle collision warning system and method detects a rear-center area impending collision and a rear-lateral-corner area impending collision, and controls an operator alarm in one of a standard mode and a towing mode. In the standard mode, the operator alarm is controlled to provide an alert to an operator when the rear-center area impending collision is detected and/or the rear-lateral-corner area impending collision is detected. In the towing mode, the operator alarm is controlled to provide the alert to the operator when the rear-lateral-corner area impending collision is detected by the rear-lateral-corner area impending collision detection module, and to provide no alert to the operator when the rear-center impending collision is detected by the rear-center area impending collision detection module.