Automated Driving Interface Control for Mode Transition Readiness

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Solution Overview

Problem

Existing automated driving systems lack a mechanism to provide adequate preparation time to vehicle occupants when switching between different modes of automated driving, potentially leading to situations where occupants are not ready for changes in their monitoring obligations or interface device operations.

Innovation Solution

A vehicle control system that includes an automated driving control unit and an interface control unit, which receives occupant operations and restricts or allows interface device operations based on the automated driving mode, providing notifications and returning the interface device to a previous state before mode changes, especially when the degree of automated driving decreases, to ensure occupants are prepared for increased monitoring obligations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If automated driving mode switching is performed automatically when preset conditions are established, then the automated driving control is efficient and responsive, but the vehicle occupant may not be ready for the mode change

Engineering Contradiction:
ImproveResponse speed of mode switchingVSAvoidReadiness of vehicle occupant
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs preliminary actions by notifying the vehicle occupant in advance before the automated driving mode is actually switched. The notification is displayed at a timing before the mode change occurs, allowing the occupant to prepare mentally and physically for the transition, thus resolving the contradiction between fast switching and occupant readiness.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If the interface device remains in a relaxed state after restriction release, then the occupant can operate the interface freely, but the occupant may not notice the upcoming mode change and increased monitoring obligations

Engineering Contradiction:
ImproveFreedom of interface operationVSAvoidAwareness of mode change
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system displays notification information in advance of the mode change while the interface restriction is still relaxed or has just been released. This preliminary notification ensures the occupant is aware of the upcoming mode change and increased monitoring obligations before the interface restrictions are fully applied, preventing information loss while maintaining ease of operation during the transition period.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11267484B2Vehicle control system, vehicle control method, and vehicle control program
Publication Date: 2022.03.08 HONDA MOTOR CO LTD
  • US11267484B2 patent drawing
  • US11267484B2 patent drawing
  • US11267484B2 patent drawing

AI summary

A vehicle control system includes an automated driving control unit that automatically controls at least one of acceleration/deceleration and steering of a subject vehicle, the automated driving control unit performing automated driving control in any one of a plurality of modes with different degrees of automated driving, and an interface control unit that receives an operation of an occupant of the subject vehicle and restricts an operation with respect to an interface device on which predetermined information is output, according to the mode of automated driving performed by the automated driving control unit, and when the change to the mode of the automated driving in which the degree of automated driving decreases is performed in a state in which the restriction is relaxed or released, the interface control unit causes a state of the interface device to return to a state before the restriction is relaxed or released or performs a predetermined notification before a predetermined time at which the change of the mode of the automated driving is performed.