Remote Assistance Latency Check for Autonomous Vehicle Safety

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Solution Overview

Problem

Autonomous vehicles (AVs) face challenges in ensuring the safety and relevance of remote assistance (RA) actions due to communication latency between the RA system and the AV, which can render intended maneuvers dangerous or impossible due to outdated information.

Innovation Solution

Implementing a latency check mechanism within the RA system to determine if the communication latency exceeds a predetermined threshold, thereby aborting or delaying AV commands to prevent unsafe actions, and using chargeable buttons that require sustained user engagement to confirm actions only when latency is within acceptable limits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If remote assistance actions are implemented without latency checks, then response speed is improved, but safety is compromised due to outdated information

Engineering Contradiction:
Improveresponse speedVSAvoidsafety
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs a latency check before executing the remote assistance action. This preliminary verification ensures that the information is still current and relevant before the action is carried out, preventing unsafe maneuvers based on outdated data while maintaining efficient response times when conditions permit.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If latency checks are performed for every action, then safety is improved, but system complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system monitors latency as a dynamic parameter and adjusts its behavior based on whether the latency threshold is exceeded. When latency is within acceptable limits, actions proceed normally; when the threshold is exceeded, the system aborts or delays actions. This parameter-based approach provides a simple, elegant solution that maintains safety without requiring complex decision-making logic.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12107747B1Chargeable button latency check
Publication Date: 2024.10.01 GM CRUISE HOLDINGS LLC
  • US12107747B1 patent drawing
  • US12107747B1 patent drawing
  • US12107747B1 patent drawing

AI summary

Aspects of the disclosed technology provide solutions for displaying chargeable buttons on a RA system user interface and performing a latency check. A process of the disclosed technology can include steps for displaying a user interface (UI) on a remote assistance system, wherein the UI comprises at least one chargeable button, detecting a user engagement with the at least one chargeable button, wherein the user engagement is configured to communicate one or more commands to an autonomous vehicle (AV) that is communicatively coupled to the RA system, performing a latency check to determine a latency between the AV and the RA system, and aborting the one or more actions on the AV, if a determination is made that the latency exceeds a predetermined threshold. Systems and machine-readable media are also provided.