Vehicle Exterior Notification Timing for Automated Driving States

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Solution Overview

Problem

Existing vehicle notification systems fail to provide vehicle exterior notifications that are tailored to the specific automated driving state of the vehicle, making them less effective for the vehicle's surroundings.

Innovation Solution

A vehicle notification control device and method that identifies the automated driving-related state and adjusts the timing and content of exterior notifications based on this state, using a vehicle exterior notification device to provide more appropriate information to the outside of the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a display device is attached to the roof to show automated driving status, then the notification is always visible, but the notification is not tailored to the specific automated driving state

Engineering Contradiction:

Improvenotification effectivenessVSAvoidnotification adaptability to driving state

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The notification device dynamically changes its display content and timing based on the current automated driving state. The control device receives state information from the automated driving control device and adjusts the notification accordingly, making the system adaptive rather than static.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The notification system changes its operational parameters (display content, timing, duration) based on the automated driving state parameters. When the automated driving state changes, the notification device adjusts its parameters to provide state-appropriate information to surrounding vehicles and pedestrians.

Inventive Principle:

Principle #35Parameter changes

2Loss of information

If vehicle exterior notification is performed continuously, then information is always provided to the outside, but the notification timing does not match the automated driving state changes

Engineering Contradiction:

Improveinformation completenessVSAvoidnotification timing accuracy

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The control device is configured to perform notification at appropriate timing based on the automated driving state. Rather than continuous notification, the system determines the optimal moment to notify surrounding vehicles and pedestrians based on the current driving state, ensuring timely and relevant information delivery.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The notification system operates periodically or event-driven based on changes in automated driving state. The control device monitors state changes and triggers notifications at appropriate intervals or events, rather than maintaining continuous operation, thus improving timing accuracy.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS12391174B2Vehicle notification control device and vehicle notification control method

Publication Date: 2025.08.19 DENSO CORP

AI summary

By a vehicle notification control device or a vehicle notification control method, an automated driving-related state is identified, a vehicle exterior notification device is controlled for performing vehicle exterior notification that is notification of information related to the automated driving toward an outside of the vehicle; and an execution timing of the vehicle exterior notification is changed according to the identified automated driving-related state.