Exterior Vehicle Alerting System for Collision Avoidance
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Solution Overview
Problem
Conventional vehicle collision avoidance systems are limited in their ability to prevent collisions due to their restricted capability to modify vehicle trajectory or alert drivers, often resulting in unavoidable collisions when obstacles are detected too late.
Innovation Solution
An exterior alerting system that uses sensors, a controller, and alerting devices to detect objects, calculate a danger zone, and generate alert signals when a collision is imminent, dynamically adjusting driver alerts and vehicle trajectory to avoid obstacles, utilizing cameras, radars, LIDARs, and other sensors to estimate object positions and velocities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods only alert the driver or modify vehicle trajectory, then the system complexity remains low, but the collision avoidance capability is insufficient when obstacles are detected too late
Solution Approach 1:
The system performs preliminary calculation of the danger zone based on vehicle trajectory and object position before collision occurs. By proactively identifying areas where collision cannot be avoided even with maximum steering input, the system prepares alert signals in advance, improving response time and collision avoidance capability without adding complex real-time control mechanisms.
Solution Approach 2:
The patent introduces an external alerting device as an intermediary between the sensor detection system and the driver/vehicle control system. This intermediary component communicates collision risk to external parties (pedestrians, other drivers) through visual or audible signals, adding a new dimension to collision avoidance without requiring complex modifications to the vehicle's primary control systems.
2Reliability
If the system generates exterior alert signals to warn external objects, then the collision avoidance capability improves, but the device complexity increases due to additional components
Solution Approach 1:
The controller performs multiple functions using the same sensor data: it calculates the danger zone, determines collision probability, and generates alert signals. By making the controller multi-functional rather than adding separate dedicated systems for each function, the patent improves collision avoidance capability while minimizing the increase in device complexity.
Solution Approach 2:
The patent combines the danger zone calculation, collision assessment, and alert signal generation into an integrated system controlled by a single controller that processes sensor data. This merging of functions into a unified control architecture improves reliability through coordinated operation while avoiding the complexity of multiple independent systems.
Data Source
AI summary
An exterior alerting system for a vehicle. The system may include a sensor, a controller, and an alerting device. The sensors maybe configured to detect an object exterior to the vehicle. Additionally, the controller may be configured to receive a position of the object from the sensor, calculate a danger zone based on a trajectory of the vehicle and the position of the object, and generate at least one exterior alerting signal when the vehicle cannot avoid the danger zone.