Lane-Keeping Control Using Driver Torque Intent Detection

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Solution Overview

Problem

Conventional lane-keeping control techniques ignore the driver's intention and fail to consider road and driver characteristics, leading to frequent unnecessary driver steering interventions.

Innovation Solution

A lane keeping control apparatus that determines the driver's intention based on steering directionality and torque value, allowing for a lane replacement mode that adjusts the target path to reflect the driver's intended path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional lane-keeping control follows only the center of the road without considering driver characteristics, then the control system is simple to implement, but driver steering interventions occur frequently

Engineering Contradiction:

Improvecontrol system complexityVSAvoiddriver steering intervention frequency

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The system continuously monitors driver steering torque and direction, using this feedback to detect lane replacement intentions and adjust the target path accordingly. This closed-loop feedback mechanism reduces unnecessary driver interventions by adapting the control system to driver intent

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system changes the target path parameters based on detected driver intention. When lane replacement is detected through torque and direction analysis, the target path is dynamically adjusted to reflect the driver's intended destination, reducing conflicts between automated control and driver intent

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If lane replacement mode is supported by detecting driver intention, then driver workload is reduced, but the detection and control algorithm complexity increases

Engineering Contradiction:

Improvedriver workloadVSAvoiddetection algorithm complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system automatically detects driver intention through steering torque and direction analysis without requiring explicit driver input or complex user interface interactions. The driver simply steers naturally, and the system self-adjusts to support the intended lane replacement

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The target path is dynamically adjusted based on real-time driver steering behavior. The system transitions from a static center-path approach to a dynamic path that adapts to driver intent, enabling seamless lane replacement support

Inventive Principle:

Principle #15Dynamics

3Stability of the object's composition

If the target path is dynamically adjusted to reflect driver intention, then lane keeping stability is improved, but the computational requirements increase

Engineering Contradiction:

Improvelane keeping stabilityVSAvoidcomputational energy consumption

Core Design Contradiction:

Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The system applies partial path adjustment rather than complete recalculation. When lane replacement is detected, only the relevant portion of the target path is modified to reflect driver intent, rather than recomputing the entire navigation path

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12280773B2Apparatus for controlling lane keeping, vehicle system having the same and method thereof

Publication Date: 2025.04.22 HYUNDAI MOTOR CO LTD

AI summary

A lane keeping control apparatus and, a vehicle system including the same are provided. The lane keeping control apparatus includes a processor that supports a lane replacement mode by determining an intention of a driver based on a steering direction of the driver and a steering torque value of the driver during lane keeping control; and a storage that stores data and algorithms driven by the processor.