Autonomous Vehicle Path Control for Overlapping Travel Areas
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Solution Overview
Problem
Autonomous vehicles face challenges in preventing collisions and reducing passenger anxiety even when the travel directions of external objects do not intersect with the host vehicle, as existing technologies may not adequately address non-intersecting but potentially hazardous situations.
Innovation Solution
A device and method that determine overlapping travel areas between a host vehicle and a target vehicle, adjusting the host vehicle's expected travel path and speed based on collision risk, using sensors and processors to calculate offsets, curvatures, and approach angles to modify the path and prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the host vehicle maintains its expected travel path without adjustment, then the productivity and efficiency of autonomous driving is improved, but the safety and collision avoidance capability deteriorates when overlapping travel areas are present
Solution Approach 1:
The system performs preliminary determination of overlapping travel areas between the host vehicle and target vehicle before collision occurs. By calculating potential collision risk in advance based on current and expected travel paths, the system can proactively adjust the host vehicle's path or speed to avoid collision, thus maintaining safety without significantly impacting autonomous driving efficiency
Solution Approach 2:
The system dynamically adjusts the host vehicle's expected travel path or speed based on the determined collision risk level. When overlapping travel areas are detected with high collision probability, the system modifies the travel plan in real-time, allowing the vehicle to adapt its behavior dynamically rather than following a fixed path, thereby resolving the contradiction between maintaining efficiency and ensuring safety
2Reliability
If the host vehicle adjusts travel path to avoid all potential hazards, then the safety and passenger comfort is improved, but the productivity and travel efficiency deteriorates
Solution Approach 1:
The system applies path adjustment only in specific local areas where overlapping travel areas and collision risk are detected, rather than adjusting the entire travel path. This localized adjustment approach maintains passenger safety and comfort in hazardous zones while minimizing impact on overall travel efficiency by allowing normal operation in safe areas
Solution Approach 2:
The system changes key parameters such as speed and path coordinates only when and where collision risk is detected in overlapping travel areas. By selectively modifying these parameters rather than continuously adjusting them, the system ensures passenger safety in critical situations while maintaining travel efficiency during normal conditions
Data Source
AI summary
The present disclosure relates to a device and a method for controlling a vehicle. The device includes a driving controller configured to control movement of a first vehicle, and one or more processors electrically connected to the driving controller. The device further includes memory storing instructions that, when executed by the one or more processors, cause the device to determine a first travel area including a first expected travel path of the first vehicle and a second travel area including a second expected travel path of a second vehicle located within a predetermined distance from the first vehicle, determine an overlapping area between the first travel area and the second travel area, and, based on a determination that a possibility of collision between the first vehicle and the second vehicle in the overlapping area being greater than a threshold value, adjust the first expected travel path of the first vehicle or a speed of the first vehicle.