Lane-Keeping Steering Enable Logic for Fewer Unwanted Interventions
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Solution Overview
Problem
Current lane-keeping assistance systems in vehicles frequently intervene with steering, leading to driver annoyance and potential deactivation, reducing traffic safety due to excessive unwanted interventions.
Innovation Solution
Implement a system that only activates steering interventions when clear enabling criteria are met, such as specific driving situations or driver conditions indicating a high benefit potential for preventing unintentional lane departure, rather than intervening in all situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If active steering intervention is performed in almost all driving maneuvers involving approaching a lane marking line, then warning interventions are carried out in a reliable and reproducible manner, but the frequency of interventions increases significantly causing driver annoyance and potential system deactivation
Solution Approach 1:
The patent changes the parameter of intervention frequency by introducing enabling criteria that filter when interventions occur. Instead of intervening in all lane marking approaches, the system now evaluates additional parameters (driver attention, driving situation, vehicle speed) to determine whether to activate steering intervention, thereby reducing excessive interventions while maintaining reliability for genuine safety needs
Solution Approach 2:
The patent inverts the traditional approach by not intervening by default and only intervening when specific enabling criteria are met. Rather than suppressing interventions in exceptional situations, the system now requires positive confirmation that intervention is appropriate, reversing the burden of proof from 'suppress unless necessary' to 'activate unless inappropriate'
2Ease of operation
If further warning suppression criteria are incorporated to reduce unwanted interventions, then driver annoyance is reduced, but the reliability of the system is significantly impaired in situations where unintentional leaving of the lane occurs
Solution Approach 1:
The patent changes the parameter of criterion structure by replacing multiple suppression criteria with a unified enabling criteria framework. Instead of adding layers of suppression rules that complicate the system, it introduces positive enabling conditions (driver attention level, driving situation classification, vehicle speed thresholds) that naturally reduce unwanted interventions while preserving safety-critical interventions
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring driver attention and driving situation to dynamically adjust intervention behavior. The system uses real-time feedback from sensors (camera, microphone, acceleration sensors) to determine whether enabling criteria are met, creating a closed-loop system that adapts to current conditions rather than relying on static suppression rules
3Reliability
If the lane-keeping assistance device is activated automatically, then traffic safety is improved through continuous monitoring, but driver acceptance decreases due to frequent unwanted steering interventions
Solution Approach 1:
The patent makes the system dynamic by introducing enabling criteria that cause the intervention behavior to adapt to current driving conditions. The system transitions from static automatic activation to dynamic conditional activation, where the level of assistance provided varies based on real-time assessment of driver attention, driving situation, and vehicle parameters
Solution Approach 2:
The patent changes the activation parameter from binary (on/off) to conditional (enabled/disabled based on criteria). By introducing enabling criteria that evaluate multiple parameters simultaneously, the system maintains automatic activation for safety while dynamically adjusting intervention frequency to match actual need, thereby preserving both safety and driver acceptance
Data Source
AI summary
This disclosure relates to a method for operating a lane-keeping assistance device of a motor vehicle including activating a lane-keeping assistance device, and checking whether at least one predefinable enabling criterion for enabling an actuation of the lane-keeping assistance device for triggering a steering intervention is fulfilled in response to a trigger signal for actuating the lane-keeping assistance device for triggering a steering intervention being established. The method includes enabling an actuation of the lane-keeping assistance device for triggering a steering intervention in response to at least one predefinable enabling criterion for enabling an actuation of the lane-keeping assistance device being fulfilled.