Autonomous Vehicle Route Control for Emergency Vehicle Yielding

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Solution Overview

Problem

Autonomous vehicles often fail to recognize emergency vehicles approaching from behind, leading to potential disruptions in traffic flow.

Innovation Solution

A vehicle control method that includes receiving emergency vehicle information, comparing it with the vehicle's movement path, and adjusting the path to allow the emergency vehicle to pass, with optional user input or automatic adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the autonomous vehicle follows its original movement path, then the vehicle maintains its planned route efficiency, but the emergency vehicle cannot pass smoothly through the same route

Engineering Contradiction:
Improveemergency vehicle passage efficiencyVSAvoidvehicle route adjustment time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The autonomous vehicle receives emergency vehicle information in advance through V2X communication and compares it with its planned route before executing the route. This allows the autonomous vehicle to proactively identify potential conflicts and prepare for route adjustment, ensuring smooth emergency vehicle passage while minimizing disruption to its own timeline

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary communication system (V2X communication module) that mediates between the emergency vehicle and the autonomous vehicle. This intermediary enables the autonomous vehicle to receive emergency vehicle information and coordinate route adjustments, resolving the conflict between maintaining original route efficiency and allowing emergency vehicle passage

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the autonomous vehicle detects only obstacles in front or on the sides, then the detection system remains simple, but the vehicle cannot recognize emergency vehicles approaching from behind

Engineering Contradiction:
Improveemergency vehicle recognition capabilityVSAvoidsensor system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the communication module serve multiple functions: it not only handles general vehicle-to-vehicle communication but also specifically receives and processes emergency vehicle information. This multi-functionality enables emergency vehicle recognition without adding dedicated sensors, maintaining system simplicity while improving reliability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The communication module acts as an intermediary that provides emergency vehicle information to the controller, which then compares this information with the autonomous vehicle's planned route. This intermediary approach enables comprehensive emergency vehicle detection without requiring the autonomous vehicle to directly sense all directions, reducing sensor complexity while improving recognition capability

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the autonomous vehicle automatically changes route upon receiving emergency vehicle information, then emergency vehicle passage is prioritized, but the autonomous vehicle loses control over its own routing decisions

Engineering Contradiction:
Improveemergency response efficiencyVSAvoiddriver control over routing
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent introduces dynamic adjustability in the route change process through a user input module. The system can operate in different modes: automatically changing route when emergency situations are detected, or allowing driver confirmation/input before route changes. This dynamic control mechanism ensures emergency response efficiency while preserving driver control and decision-making authority

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates feedback through the user input module, which allows the driver to provide confirmation or modify route change decisions. The system receives driver input and adjusts its route change behavior accordingly, creating a feedback loop that balances automated emergency response with driver control and maintains ease of operation

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12609027B2Vehicle and control method thereof
Publication Date: 2026.04.21 HYUNDAI MOTOR CO LTD
  • US12609027B2 patent drawing
  • US12609027B2 patent drawing
  • US12609027B2 patent drawing

AI summary

Provided is a control method of a vehicle comprising a communicator configured to receive emergency vehicle information from outside, the control method including: receiving the emergency vehicle information and acquiring an emergency route of an emergency vehicle from the emergency vehicle information; comparing the emergency route with a first movement path of the vehicle; and changing from the first movement path to a second movement path, when at least a portion of the emergency route is identical to at least a portion of the first movement path as a result of the comparison.