Dynamic Vehicle Control Region Adjustment for Drowsy Drivers
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Solution Overview
Problem
Conventional Lane Keeping Assist Systems (LKAS) are ineffective in addressing driver drowsiness or fatigue, leading to reduced driving safety as they cannot adequately control steering and braking to prevent lane deviations caused by drowsy or careless driving.
Innovation Solution
A vehicle control method and apparatus that monitors the driver's state, adjusts steering and braking control regions, and provides warnings by using sensors, cameras, and a controller to extend warning regions when an abnormal state is detected, enabling early intervention and stabilization of vehicle driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional LKAS is used to maintain lane keeping, then lane deviation is prevented under normal driving conditions, but the system becomes ineffective when the driver is drowsy or fatigued
Solution Approach 1:
The patent implements dynamic adjustment of control and warning regions based on real-time driver state monitoring. When the driver is detected to be in an abnormal state (drowsy or fatigued), the system dynamically expands the steering control region from a first region to a second region, and similarly expands braking control and warning regions, enabling the system to adapt its control parameters to the current driving condition
Solution Approach 2:
The system continuously monitors driver state through camera-based facial analysis and provides feedback by adjusting control regions and issuing warnings. The feedback loop includes detecting driver facial features, determining abnormal states, and responding by expanding control regions and providing steering/braking warnings to maintain driving safety
2Reliability
If the steering control region is expanded to provide earlier intervention for drowsy drivers, then driving safety is improved, but the system complexity increases
Solution Approach 1:
The patent segments the steering control into multiple distinct regions: a first steering control region for normal conditions, a second steering control region for abnormal driver states, a first steering warning region, and a second steering warning region. This segmentation allows the system to apply different control strategies for different driving conditions without requiring complete system redesign
Solution Approach 2:
The system applies different control characteristics to different spatial regions. The first control region uses standard control parameters while the second control region uses expanded parameters with earlier intervention thresholds. This local differentiation enables tailored control strategies without increasing overall system complexity
Data Source
AI summary
An apparatus and method for controlling a vehicle are disclosed. A method for controlling a vehicle by monitoring a driver's state includes: a region setting step for establishing a first steering control region, a first steering warning region, a braking control region, and a first braking warning region of the vehicle; a driver state decision step for determining the driver state by monitoring a state of the driver; and a region resetting step for including, if the driver state is in an abnormal state in the driver state decision step, resetting a first steering control region of the vehicle, a first steering warning region, and a first braking warning region in the region setting region, and thus setting a second steering control region, a second steering warning region, and a second braking warning region.