Vehicle Collision Control Using Driver Gaze for Crossing Targets

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Solution Overview

Problem

Existing vehicle control systems cannot prevent unnecessary actuation of vehicle control when a driver has already recognized an intersecting approaching target, leading to unnecessary intervention and potential driver frustration.

Innovation Solution

A vehicle control device that acquires information on the relative position of an intersecting approaching target and the direction of the driver's face, and adjusts the ease of establishing a collision condition based on this information to prevent unnecessary vehicle control activation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If vehicle control is executed when a target is detected in front of the vehicle, then collision avoidance capability is improved, but unnecessary actuation occurs when the driver has already recognized the target

Engineering Contradiction:
Improvecollision avoidance capabilityVSAvoiddriver acceptance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system uses driver monitoring to detect the driver's line of sight and determines whether the driver has recognized the intersecting approaching target. This feedback mechanism allows the vehicle control to consider driver awareness status, preventing unnecessary actuation when the driver is already aware of the target and improving overall driver acceptance while maintaining collision avoidance capability.

Inventive Principle:
Principle #23Feedback

2Speed

If vehicle control is executed based on fixed collision conditions, then response speed is improved, but unnecessary intervention occurs for intersecting approaching targets

Engineering Contradiction:
Improveresponse speedVSAvoidunnecessary intervention
Core Design Contradiction:
SpeedVSObject-generated harmful factors

Solution Approach 1:

The system dynamically adjusts the collision condition establishment based on the driver's recognition status. When the driver monitoring determines the driver has recognized the target, the system modifies the collision condition parameters to prevent unnecessary vehicle control actuation. This dynamic adjustment maintains fast response for genuine collision risks while eliminating unnecessary interventions.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the driver monitoring system issues warnings and performs vehicle control after a predetermined period, then driver safety is improved, but unnecessary actuation with respect to intersecting approaching targets cannot be prevented

Engineering Contradiction:
Improvedriver safetyVSAvoiddriver frustration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary detection of the driver's line of sight and target recognition status before the collision condition is fully established. By determining whether the driver has recognized the intersecting approaching target in advance, the system can prevent unnecessary vehicle control actuation before it occurs, thereby maintaining driver safety while avoiding driver frustration from unnecessary interventions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250187590A1Vehicle control device, vehicle control method, and storage medium
Publication Date: 2025.06.12 TOYOTA JIDOSHA KK
  • US20250187590A1 patent drawing
  • US20250187590A1 patent drawing
  • US20250187590A1 patent drawing

AI summary

A vehicle control device can execute vehicle control related to driving assistance that reduces a possibility of a collision against a target when a predetermined collision condition is established, the target being present in a front side region that extends from a left obliquely front side to a right obliquely front side of the vehicle so as to include a front side of the vehicle, and the collision condition being established when the possibility of the collision is high. The vehicle control device includes a control unit configured to acquire first and second information when there is a possibility of a collision against an intersecting approaching target that is traveling from a direction intersecting a traveling direction of the vehicle so as to approach a course of the vehicle, and change ease of establishment of the collision condition based on the first and the second information.