Reserved Road Space Coordination for Autonomous Vehicle Stops
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Solution Overview
Problem
Autonomous driving vehicles face safety issues due to inadequate notice and space allocation when a leading vehicle abruptly stops or opens its doors, leading to potential accidents and whiplash.
Innovation Solution
A method for autonomous driving road space reservation and adaption, which involves determining a target location for a first vehicle, reserving road space, communicating the reserved space to a second vehicle, and adapting its driving plan based on the communicated reserved space before arrival.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autonomous vehicles stop when another vehicle abruptly stops or opens doors, then safety response is improved, but false positives and unnecessary stops occur when the leading vehicle is pulled over
Solution Approach 1:
The system performs preliminary actions by reserving road space in advance before the autonomous vehicle actually stops. This allows other vehicles to be notified and adjust their trajectories proactively, preventing accidents without requiring the autonomous vehicle to make abrupt stops. The reserved space acts as a preliminary safety buffer that communicates intent to surrounding vehicles.
Solution Approach 2:
The patent introduces an intermediary mechanism (reserved road space communication system) that mediates between the autonomous vehicle's stopping intent and surrounding vehicles. Instead of direct reaction to abrupt stops, the intermediary system communicates the reserved space information to other vehicles, allowing them to adjust their behavior smoothly without causing false positives or unnecessary stops.
2Reliability
If road space is reserved and communicated to other vehicles, then safety is improved, but communication overhead and system complexity increase
Solution Approach 1:
The patent extracts the essential safety function from complex communication protocols by focusing solely on communicating reserved road space information. This simplified extraction of the critical safety parameter (reserved space boundaries and duration) reduces communication overhead while maintaining collision prevention capabilities, avoiding the need for comprehensive vehicle-to-vehicle communication systems.
3Speed
If autonomous vehicles make unsafe lane changes or abrupt stops, then reaction time is reduced, but accident risk and whiplash increase
Solution Approach 1:
The system performs preliminary actions by notifying surrounding vehicles of the reserved road space before the autonomous vehicle executes any maneuver. This allows other vehicles to slow down or change lanes proactively, eliminating the need for abrupt stops or unsafe lane changes by the autonomous vehicle while still achieving rapid safety response.
Data Source
AI summary
The present inventive concept provides for a method of autonomous driving road space reservation and adaption. The method includes determining a target location of a first vehicle. Road space is reserved for the first vehicle at the target location. The reserved road space of the first vehicle is communicated to a second vehicle, and the driving plan of the second vehicle is adapted based on the communicated reserved road space of the first vehicle automatically before arrival.