Driver-Gaze Adaptive Staggering Detection for Vehicle Maneuvers

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Solution Overview

Problem

Existing vehicle staggering determination systems fail to accurately assess the presence or absence of vehicle staggering during specific travel scenarios, such as lane changes, interactions with large vehicles, or reduced lane widths, leading to potential misclassification of driver maneuvers as staggering.

Innovation Solution

A staggering determination device and method that adjusts threshold values based on the presence of targets around the vehicle and the driver's line of sight, using sensors and cameras to determine the need for collision avoidance maneuvers, thereby preventing erroneous determination of vehicle fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If learning exclusion scenes are set for specific travel scenarios (lane changes, large vehicle interactions, reduced lane widths), then false staggering detection is reduced, but the system cannot determine staggering appropriately in these necessary scenarios

Engineering Contradiction:
Improveaccuracy of staggering determinationVSAvoidcoverage of determination scenarios
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by making the determination threshold adaptive to different local situations. Instead of using a uniform exclusion approach, the system dynamically adjusts the staggering determination threshold based on the specific travel scene and driver behavior patterns identified in each local context (lane changes, large vehicle interactions, reduced lane widths), allowing accurate determination in each specific scenario rather than blanket exclusion.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by transitioning from a static exclusion scene approach to a dynamic threshold adjustment mechanism. The system continuously adapts the staggering determination threshold based on real-time detection of travel scenes and driver operations, enabling the system to respond appropriately to changing conditions rather than relying on pre-defined fixed exclusion categories.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If a fixed staggering determination threshold is used, then the determination process is simple, but driver avoidance maneuvers are erroneously classified as staggering

Engineering Contradiction:
Improvesimplicity of determination processVSAvoidaccuracy of staggering detection
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting the staggering determination threshold based on detected travel scenes and driver behavior patterns. Instead of using a fixed threshold, the system modifies the threshold parameter adaptively according to the specific situation (e.g., lane change scenes, large vehicle interactions), thereby improving measurement precision without significantly increasing system complexity.

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If learning is performed in all travel scenarios, then comprehensive staggering data is collected, but driver avoidance maneuvers are incorrectly included as staggering behavior

Engineering Contradiction:
Improvevolume of learning dataVSAvoidaccuracy of staggering classification
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent implements preliminary action by performing preliminary detection and classification of driver operations before they are used for learning. The system identifies and excludes avoidance maneuvers from learning data collection through preliminary analysis of driver intent and operational context, ensuring that only genuine staggering behavior is included in the learning dataset rather than collecting all travel scenario data indiscriminately.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12552379B2Staggering determination device, staggering determination method, and storage medium
Publication Date: 2026.02.17 TOYOTA JIDOSHA KK
  • US12552379B2 patent drawing
  • US12552379B2 patent drawing
  • US12552379B2 patent drawing

AI summary

The staggering determination device includes a staggering determination unit that determines whether or not there is a fluctuation in traveling of the own vehicle, and in a case where there is a target in the vicinity of the own vehicle traveling and a face or a line of sight of the driver of the own vehicle is directed to the target, the threshold value changing unit changes the fluctuation determination threshold used by the threshold value changing unit for determining whether or not there is a fluctuation in traveling of the own vehicle according to the positional relationship between the own vehicle and the target, or the staggering determination unit stops the determination of whether or not there is a fluctuation in traveling of the own vehicle.