Vehicle Display Background Switching for Autonomous Driving Override Alerts

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Solution Overview

Problem

Existing vehicle display systems fail to effectively inform occupants of driving operation interventions during autonomous driving, potentially causing discomfort to other occupants due to unintentional override operations.

Innovation Solution

A vehicle display control device that detects driving operation interventions during autonomous driving and visually alerts the occupant through changes in background information on the display, such as altering colors and hiding certain elements, to inform the driver of the intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If voice messages are used to report driving operation interventions to the vehicle occupant, then the occupant is informed of the intervention, but the comfort of other vehicle occupants is disturbed

Engineering Contradiction:
Improveinformation transmission to occupantVSAvoiddisturbance to other occupants
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the acoustic notification system (voice messages) with a visual notification system (display unit). The display unit presents vicinity information with altered background information that indicates driving operation interventions, thereby substituting sound-based communication with light-based communication to avoid disturbing other occupants while still informing the driver.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes color changes and visual alterations of background information on the display unit to communicate driving operation interventions. By changing the appearance of displayed information (such as highlighting or altering background colors), the system effectively transmits intervention status to the driver without using auditory signals that would disturb other occupants.

Inventive Principle:
Principle #32Color changes

2Loss of information

If frequent voice notifications are used to alert the vehicle occupant of driving operations, then the occupant is kept informed, but the comfort of other occupants is reduced

Engineering Contradiction:
Improvenotification frequency and effectivenessVSAvoidcomfort disturbance
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The system replaces repeated acoustic notifications with a single visual display that continuously shows the intervention status through altered background information. This substitution eliminates the need for frequent voice messages while maintaining effective communication of the intervention state to the driver.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The display unit provides continuous visual feedback about driving operation interventions by maintaining altered background information on the screen. This continuous visual presence replaces the need for repeated discrete voice notifications, keeping the driver informed without creating intermittent disturbances to other occupants.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS12409845B2Vehicle display control device, vehicle display system, vehicle display control method, and non-transitory storage medium
Publication Date: 2025.09.09 TOYOTA JIDOSHA KK
  • US12409845B2 patent drawing
  • US12409845B2 patent drawing
  • US12409845B2 patent drawing

AI summary

A vehicle display control device includes: a driving mode acquisition section that acquires information on which of a manual driving mode or an autonomous driving mode is a driving mode; an operation intervention detection section that, in a case in which the driving mode acquired by the driving mode acquisition section is the autonomous driving mode, detects a driving operation intervention by the vehicle occupant; and a display control section that displays vicinity information of the vehicle at a display unit provided at a vehicle cabin at least in a case in which the driving mode acquired by the driving mode acquisition section is the autonomous driving mode, wherein, in a case in which a driving operation intervention is detected by the operation intervention detection section, the display control section changes background information of the vicinity information and displays the background information at the display unit.