Driver Assistance Lane-Stop Control Using Road Boundary Recognition
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Solution Overview
Problem
Conventional vehicle control systems suspend deceleration stop control when they cannot recognize both dividing lines of the current running lane and a front vehicle, leading to potential safety risks.
Innovation Solution
A driver assistance control device that enables deceleration stop control by recognizing road dividing objects or lines, even if the current running lane and front vehicle are not recognized, by setting recognition levels and controlling the vehicle to stop between recognized road dividing objects or lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional running control device suspends deceleration stop control when both dividing lines of the current running lane and front vehicle are not recognized, then the system avoids making incorrect stopping decisions with insufficient information, but the vehicle safety and driver assistance reliability deteriorate because no automatic stopping is performed when the driver is in an abnormal state
Solution Approach 1:
The patent introduces road dividing objects or lines as an intermediary reference when the primary reference (dividing lines of current running lane) is unavailable. The recognition level comparison between current running lane dividing lines and road dividing objects/lines acts as a mediator to enable deceleration stop control through alternative references, thereby maintaining safety without relying solely on the original reference system
Solution Approach 2:
The patent changes the recognition parameter from requiring high recognition level of current running lane dividing lines to accepting lower recognition levels when road dividing objects or lines provide sufficient reference. This parameter flexibility allows the system to perform deceleration stop control under broader conditions while maintaining safety
2Manufacturing precision
If the system requires high recognition level of dividing lines of current running lane for deceleration stop control, then the stopping accuracy improves, but the system becomes unable to perform deceleration stop control when recognition level is low, reducing operational capability
Solution Approach 1:
The patent makes the reference selection dynamic by comparing recognition levels of different reference objects (current running lane dividing lines vs. road dividing objects or lines). The system adaptively switches between reference systems based on recognition conditions, allowing high stopping accuracy when possible and maintaining operational capability when reference conditions vary
Solution Approach 2:
The patent creates a universal deceleration stop control system that can operate with multiple types of reference objects. By accepting both current running lane dividing lines and road dividing objects or lines as valid references, the system achieves multi-functionality and can perform stopping operations under diverse road conditions and recognition scenarios
Data Source
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AI summary
A driver assistance control device (6) is configured so that if it is judged that a driver of the vehicle (100) is in an abnormal state where continued driving of the vehicle (100) would be difficult, it makes the vehicle (100) stop as driver assistance and so that at the time of the driver assistance, when the recognition level of dividing lines (L1, R1) of the current running lane on which the vehicle (100) is running is less than a predetermined level and the recognition level of a pair of left and right road dividing objects or road dividing lines (L2, R2) defining a road with a direction of forward movement on the road the same direction as the vehicle (100) is greater than or equal to the predetermined level, it makes the vehicle (100) stop between the pair of left and right road dividing objects or road dividing lines (L2, R2).