Driving Assistance Lane Recognition for Steering Avoidance Margin
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Solution Overview
Problem
Existing vehicle control systems struggle to perform appropriate preliminary operations in varying environmental conditions, particularly when there is no avoidance space on the side of a target object, limiting their control margin.
Innovation Solution
A driving assistance device that includes a division line recognition part, a braking control part with preliminary operation control, and a steering avoidance control part. The system recognizes division lines, performs preliminary braking operations based on approaching conditions, and executes steering avoidance when necessary, adjusting operations based on misrecognized lanes and available space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If automatic steering control is added to automatic deceleration control, then the vehicle's response capability to sudden environmental changes is improved, but when there is no avoidance space on the side of a target object, the control margin deteriorates to the same level as vehicles that only perform automatic deceleration control
Solution Approach 1:
The system performs preliminary operations (early deceleration or lane change preparation) when the degree of approach satisfies a second condition before the final stopping condition is met. This allows the vehicle to reduce speed or prepare avoidance maneuvers in advance, maintaining control margin even when avoidance space is limited. The control part switches between preliminary operation mode and final operation mode based on whether avoidance space is available, ensuring appropriate response in all situations.
2Adaptability or versatility
If the vehicle performs preliminary operations based on degree of approach conditions, then the control margin is improved, but the complexity of control logic increases due to multiple conditions and modes
Solution Approach 1:
The control part dynamically switches between preliminary operation mode and final operation mode based on real-time assessment of avoidance space and degree of approach conditions. This dynamic adaptation allows the system to simplify control when avoidance is possible while activating complex preliminary operations only when necessary, balancing control margin improvement with manageable complexity through conditional activation rather than permanent structural complexity.
Data Source
AI summary
A driving assistance device performs one or both of instructing to stop a vehicle when an approach degree between the vehicle and a target object satisfies a first condition and instructing to avoid coming into contact with the target object by steering, performs a first preliminary operation when the approach degree satisfies a second condition, performs a second preliminary operation when the approach degree satisfies a third condition and when it is determined that there is no space where the vehicle is movable after performing avoidance by the steering to any traveling path on a side of the target object, when it is determined that there is a misrecognized lane based on a lane width of a lane divided by two division lines among a plurality of recognized division lines, the traveling path on the side of the target object based on the lane other than the misrecognized lanes.