Autonomous Vehicle Strategy Mode Broadcasting for Shared Traffic
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Solution Overview
Problem
Current autonomous vehicle technologies lack effective methods for safe and efficient operation in environments shared with non-autonomous vehicles, posing challenges in interoperability and safety, particularly in scenarios where human-driven vehicles are present.
Innovation Solution
The implementation of four strategy modes - uncoupled, permissive, assistive, and preventative - for autonomous vehicles to interact with other vehicles, allowing them to select actions based on detected information about other vehicles and the environment, including broadcasting and sensing devices for communication and data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous vehicles operate with high autonomy levels focusing on internal operations, then individual vehicle autonomy is improved, but safety and interoperability in shared environments with non-autonomous vehicles deteriorates
Solution Approach 1:
The patent introduces a communication system as an intermediary between autonomous and non-autonomous vehicles. The autonomous vehicle broadcasts its strategy mode, current action, and intended action to other vehicles, which in turn broadcast their strategy modes. This mediator communication layer enables safe interaction in shared environments without compromising individual autonomy capabilities.
2Reliability
If autonomous vehicles use complex strategy modes to interact with other vehicles, then safety and interoperability are improved, but device complexity increases
Solution Approach 1:
The patent segments the interaction complexity by dividing it into distinct strategy modes (uncoupled, permissive, assistive, preventative). Each mode represents a simplified decision framework that the autonomous vehicle can select based on the detected strategy modes of other vehicles. This segmentation transforms a potentially overwhelming complex interaction problem into manageable discrete choices.
Solution Approach 2:
The system dynamically adapts the autonomous vehicle's strategy mode based on real-time detection of other vehicles' strategy modes and environmental conditions. The vehicle transitions between different strategy modes (uncoupled, permissive, assistive, preventative) depending on the situation, allowing the system to maintain simplicity in each state while achieving high overall reliability through adaptive behavior.
3Reliability
If autonomous vehicles prioritize safety by detecting and adapting to other vehicles, then safety is improved, but operational efficiency and speed deteriorate
Solution Approach 1:
The patent implements partial action by having the autonomous vehicle selectively engage with other vehicles based on their strategy modes. When operating in uncoupled mode, the vehicle takes minimal action and proceeds with its planned route without excessive caution. When other vehicles exhibit cooperative behavior (permissive, assistive, or preventative modes), the autonomous vehicle adjusts its level of caution accordingly, maintaining safety while avoiding unnecessary operational delays.
Data Source
AI summary
Systems and methods for broadcasting strategy modes of autonomous vehicles are described. An autonomous vehicle may include one or more notification devices that broadcast a selected strategy mode for the autonomous vehicle. The selected strategy mode may include an uncoupled strategy mode, a permissive strategy mode, an assistive strategy mode, and a preventative strategy mode. The notification devices may include visual, audio, or signal notification devices. In addition, the autonomous vehicle may broadcast other information associated with the vehicle, such as a position, a velocity, a priority, or an identity of the vehicle.