Vehicle Control Authority Transfer for Unoccupied Autonomous Driving

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Solution Overview

Problem

In situations requiring transfer of control authority during autonomous driving, such as remote parking pilot, where no occupants are present in the vehicle, immediate transfer of control authority is not feasible.

Innovation Solution

A method and apparatus that allow a first user to select a second user to take over control authority, with restrictions based on a predefined policy, enabling manual driving within limited ranges and conditions, and resume autonomous driving when feasible.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If control authority is transferred to a second user when the first user is not present, then the vehicle can operate during autonomous driving tasks, but safety and control reliability are compromised

Engineering Contradiction:
Improvevehicle operation continuityVSAvoidcontrol authority safety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies local quality by granting different levels of control authority to different users based on their roles and permissions. The first user (owner) has full control authority, while the second user (designated operator) receives limited control authority only for specific autonomous driving tasks. This differentiated authorization system allows the vehicle to operate during RPP tasks while maintaining safety through role-based access control.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements preliminary action by having the first user pre-designate a second user and define their control authority boundaries before the autonomous driving task begins. The system stores this authorization information in advance, so when the first user is not present during RPP operation, the vehicle can immediately transfer control to the pre-approved second user without delay, ensuring both operational continuity and safety.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the first user is required to be present in the vehicle for control authority transfer, then control safety is maintained, but the vehicle cannot perform remote parking pilot operations

Engineering Contradiction:
Improvecontrol authority safetyVSAvoidautonomous driving functionality
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing control authority into distinct levels: full control authority for the first user and limited control authority for the second user. This segmentation allows the system to transfer appropriate control levels based on operational needs. During RPP tasks, only limited control authority is transferred to the second user, enabling autonomous functionality while maintaining overall safety through the first user's retained authority.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism in the form of a control authority management system that mediates between the first user's ownership rights and the second user's operational needs. This intermediary system verifies authorization, manages control transfer protocols, and ensures that autonomous driving functions can operate without the first user's physical presence while maintaining safety standards.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of time

If control authority is immediately transferred when a transition demand situation occurs, then response time is reduced, but the system cannot handle situations where no occupants are present

Engineering Contradiction:
Improvecontrol transfer response timeVSAvoidhandling absence of first user
Core Design Contradiction:
Loss of timeVSAdaptability or versatility

Solution Approach 1:

The patent implements preliminary action by pre-designating the second user and establishing control transfer protocols before the transition demand situation occurs. When RPP operation begins and the first user is absent, the system can immediately execute the pre-established control transfer to the second user without delay, reducing response time while properly handling the absence scenario through advance preparation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12547182B2Method and device for managing control authority of vehicle
Publication Date: 2026.02.10 HYUNDAI MOTOR CO LTD
  • US12547182B2 patent drawing
  • US12547182B2 patent drawing
  • US12547182B2 patent drawing

AI summary

A method and a device for managing a control authority of a vehicle are disclosed. The method may include: based on an event in which an autonomous driving operation is not feasible, transmitting, to a first user terminal having an administrative control authority associated with the vehicle, a request message including an indication for a first user of the first user terminal to select a subject to take over a control authority of the vehicle while the first user is not present in the vehicle; acquiring a restriction policy for manual driving of the vehicle by a second user, wherein the second user other than the first user is selected as the subject to take over the control authority; and controlling, based on a limited control authority granted to the second user, a maneuver of the vehicle within a range indicated by the restriction policy.