Lane Keeping Control with Driver-Defined Parameters

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Solution Overview

Problem

Current Lane Keeping Assist Systems (LKAS) lack the ability for drivers to set individual control points and degrees for left and right lanes, leading to potential interruptions in driving due to mismatched driving habits, and do not allow for customizable intervention levels, which can cause discomfort and safety concerns.

Innovation Solution

A vehicle system that includes an input unit for receiving control points and degrees for lane keeping, a lane controller that determines lane keeping control based on road and vehicle conditions, and a controller that applies steering torque to maintain lane position, allowing drivers to set specific control points and degrees for left and right lanes independently through a user interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If Lane Keeping Assist System applies fixed control parameters for all drivers, then system complexity is reduced, but driver comfort and safety deteriorate due to mismatched driving habits

Engineering Contradiction:
Improvesystem complexityVSAvoiddriver comfort and safety
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system dynamically adjusts control parameters based on individual driver preferences. Drivers can set their desired lane position (control point) and intervention strength (control degree) through a user interface, and the system adapts these parameters in real-time to match each driver's habits and comfort level, resolving the contradiction between fixed simplicity and adaptive reliability.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If Lane Keeping Assist System provides standardized control for both left and right lanes, then device complexity is reduced, but adaptability to individual driving styles deteriorates

Engineering Contradiction:
Improvecontrol system complexityVSAvoidadaptability to driving styles
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The control system is segmented into independent parameters for left lane and right lane. Drivers can set different control points and control degrees for each lane direction, allowing customized intervention strategies for different driving scenarios while maintaining a unified system architecture that avoids excessive complexity.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If Lane Keeping Assist System applies strong intervention to correct lane position, then lane keeping precision is improved, but driver comfort deteriorates due to excessive steering torque

Engineering Contradiction:
Improvelane keeping precisionVSAvoiddriver comfort
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system allows drivers to adjust the control degree parameter that determines the strength of steering torque intervention. By mapping control points to specific lane positions and control degrees to intervention intensities, the system achieves precise lane keeping while accommodating individual comfort preferences through parameter customization.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9751530B2Vehicle and method for controlling thereof
Publication Date: 2017.09.05 HYUNDAI MOTOR CO LTD
  • US9751530B2 patent drawing
  • US9751530B2 patent drawing
  • US9751530B2 patent drawing

AI summary

A vehicle includes an input unit configured to receive an input of a control point and a control degree related to lane keeping; a lane controller configured to determine whether to perform a lane keeping control based on the input control point, road conditions and a vehicle condition in the road; and a controller configured to control the vehicle's driving based on the control degree when the lane controller determines to perform the lane keeping control.