Driving Assistance Road Projection for Visible Behavior Changes

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Solution Overview

Problem

Existing driving assistance technologies fail to effectively communicate planned changes in vehicle behavior to different road users, leading to potential safety and security issues during interactions.

Innovation Solution

A driving assistance system that plans behavior changes in a host vehicle and projects a notification image onto the traveling road to inform different road users of these changes, using sensors, actuators, and communication systems to ensure timely recognition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lane changes are controlled in accordance with speed of following vehicle, then driving safety is improved, but different road users cannot recognize the planned behavior change

Engineering Contradiction:
Improvedriving safetyVSAvoidcommunication of behavior change to road users
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system performs preliminary action by projecting a notification image onto the road surface before the actual lane change occurs. This advance notification allows different road users to recognize the planned behavior change and adjust their actions accordingly, resolving the information loss problem while maintaining the safety benefits of speed-based lane change control

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The notification image serves as an intermediary between the host vehicle's control system and different road users. It translates internal control decisions (lane change based on following vehicle speed) into external visible information that road users can perceive, thereby bridging the communication gap without altering the core control logic

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If right-left turning is controlled to avoid being left behind intersection, then driving reliability is improved, but transition state of behavior change is not visible to other road users

Engineering Contradiction:
Improvedriving reliabilityVSAvoidvisibility of turning intention
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system projects a notification image onto the road surface before the turning maneuver begins, providing advance notice of the intended right-left turn. This allows intersection users and other road users to recognize the turning intention and adjust their behavior, ensuring smooth and safe interaction while maintaining the reliability benefits of controlled turning

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The notification image acts as an intermediary that communicates the host vehicle's turning intention to different road users. It translates the internal control decision (right-left turn to avoid being left behind) into visible external information, enabling road users to understand and respond appropriately to the planned maneuver

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250346180A1Driving assistance system, driving assistance method, and driving assistance program
Publication Date: 2025.11.13 J-QUAD DYNAMICS INC
  • US20250346180A1 patent drawing
  • US20250346180A1 patent drawing
  • US20250346180A1 patent drawing

AI summary

A driving assistance system, a driving assistance method, a non-transitory computer-readable storage medium storing a driving assistance program for assisting driving of a host vehicle plans a behavior change that is a change in a driving behavior controlled in the host vehicle, and projects a notification image that provides notification of a transition state of the behavior change onto a traveling road to cause a different road user to recognize the notification image, the different road user being expected to interact with the host vehicle.