Vehicle Collision Prevention via Automated Speed Control
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Solution Overview
Problem
Existing parking assist systems, particularly front and rear parking assist systems (FRPAS), struggle to prevent collisions due to insufficient vehicle speed control, relying on driver operation and ultrasonic sensors that may lead to erroneous operations and potential collisions, especially in low-speed scenarios.
Innovation Solution
A system and method that determine collision danger using multi-angle vehicle and environmental information, employing a processor to compute and control vehicle target speed through various determinators, including a map-based collision determinator, FRPAS-vehicle speed determinator, FRPAS stop determinator, and vehicle speed excess stop determinator, to output a final vehicle target speed for collision prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a parking assist system uses ultrasonic sensors to detect obstacles and provides alarm warnings to drivers, then the system can alert drivers of potential collision danger at low cost, but the system cannot prevent collision due to driver error or insufficient operation
Solution Approach 1:
The system performs self-service by automatically controlling vehicle speed to prevent collisions without requiring driver intervention. The collision prevention system independently monitors obstacle distances, determines collision risk, and adjusts vehicle speed automatically, making the system self-sufficient in preventing collisions rather than relying on driver response to alarms.
Solution Approach 2:
The system replaces the mechanical driver operation (manual braking or steering) with an automated electronic control system. Instead of relying on the driver to physically operate the vehicle based on alarm warnings, the system uses electronic sensors, processors, and actuators to automatically control vehicle speed and prevent collisions.
2Ease of operation
If a parking assist system provides automatic steering control to reduce driver burden, then the system can support less experienced drivers during parking, but the system cannot control vehicle speed making collision prevention difficult
Solution Approach 1:
The parking assist system achieves multi-functionality by integrating both automatic steering control and automatic speed control capabilities. The system uses multiple sensors (ultrasonic sensors, cameras) and a central processor to simultaneously manage steering adjustments and speed control, providing comprehensive automated parking assistance that addresses both directional and velocity management.
Solution Approach 2:
The system merges previously separate functions (steering control and speed control) into a unified automated parking system. By combining the steering assist functionality with new speed control capabilities based on obstacle detection, the system provides integrated automated control that manages both vehicle direction and velocity to prevent collisions.
3Reliability
If the system uses multiple determinators and processing logic to compute final vehicle target speed, then the system can accurately prevent collision by considering multiple factors, but the device complexity increases
Solution Approach 1:
The system segments the collision prevention function into multiple specialized determinators, each responsible for specific aspects of collision risk assessment. The map-based collision determinator handles spatial relationship calculations, the FRPAS-vehicle speed determinator processes ultrasonic sensor data, the FRPAS stop determinator manages emergency stopping, and the vehicle speed excess stop determinator controls speed limits. This segmentation allows complex collision prevention to be achieved through coordinated simple modular components.
Data Source
AI summary
Disclosed is a system and a method for preventing collision through substantial vehicle control while providing warning to a driver by determining collision danger using vehicle information and environment information and controlling vehicle speed with vehicle target speed computed through determination logic.