Driver State Gating for Lane Change Support Availability

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Solution Overview

Problem

In automated driving systems, there is a need to ensure safety by limiting driving support features like auto lane changing when a driver fails to fulfill operation obligations, such as steering wheel gripping and periphery monitoring.

Innovation Solution

A driving support device that includes a detector to monitor the driver's state and a controller to manage driving support settings. The controller validates a first setting for basic driving support and a second setting for lane change support, and it invalidates the second setting if the driver does not fulfill the operation obligations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the driver does not fulfill operation obligations (such as steering wheel gripping and periphery monitoring), then driving support for lane change should be limited to ensure safety, but this may reduce the functionality and convenience of the automated driving system

Engineering Contradiction:
ImprovesafetyVSAvoiddriving support functionality
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic adjustment of driving support functionality based on real-time detection of driver state. The controller validates or invalidates the second setting (lane change support) depending on whether the driver fulfills operation obligations, making the system adaptable to changing driver conditions while maintaining safety

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system continuously monitors driver state through the detector and uses this feedback to control the validity of driving support settings. The controller receives detection results and adjusts the lane change support availability accordingly, creating a closed-loop control system that responds to driver behavior

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the second setting for lane change support is validated when the first setting for basic driving support is validated, then the system provides comprehensive driving assistance, but this may compromise safety if the driver is not adequately engaged

Engineering Contradiction:
Improvedriving support availabilityVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system requires the driver to fulfill operation obligations (steering wheel gripping and periphery monitoring) before validating the second setting for lane change support. This preliminary verification ensures driver engagement is established before enabling advanced driving assistance features

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The validation status of the second setting is dynamically adjusted based on continuous monitoring of driver state. The system can validate or invalidate lane change support depending on real-time driver performance, allowing comprehensive assistance when appropriate while maintaining safety constraints

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12263841B2Driving support device, vehicle, driving support method, and storage medium
Publication Date: 2025.04.01 HONDA MOTOR CO LTD
  • US12263841B2 patent drawing
  • US12263841B2 patent drawing
  • US12263841B2 patent drawing

AI summary

The present invention provides a driving support device that performs driving support of a vehicle, comprising: a detector configured to detect a state of a driver of the vehicle; and a controller configured to control the driving support with a setting validated by the driver among a plurality of settings including a first setting and a second setting each of which requests the driver to perform a predetermined operation obligation, wherein the controller is configured to invalidate the second setting, in a case of determining that the driver does not fulfill the operation obligation from a detection result of the detector in a state where the second setting is validated.