Autonomous Driving Control Switching for Map Accuracy
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Solution Overview
Problem
Autonomous driving systems may fail to continue operation when the accuracy of map information is low, leading to disruptions in navigation and control.
Innovation Solution
The system adjusts its control level by switching between high-accuracy and low-accuracy map data, using the first map for high-level autonomous driving and the second map for lane-keeping control when accuracy is compromised, ensuring continuous operation by lowering the autonomous driving level in areas with low map accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the system maintains high-level autonomous driving control, then the autonomous driving function is optimized, but the system cannot continue operation when map information accuracy is low
Solution Approach 1:
The patent implements dynamic switching between high-level autonomous driving control and low-level lane-keeping control based on map information accuracy. When map accuracy is sufficient, the system operates at high autonomous driving level; when map accuracy deteriorates below a threshold, the system automatically transitions to low-level control mode, ensuring continuous operation while adapting to changing environmental conditions
Solution Approach 2:
The system changes the control parameter (autonomous driving level) based on the quality parameter (map information accuracy). By monitoring map accuracy metrics and comparing them against predefined thresholds, the system adjusts the degree of automation accordingly, maintaining optimal performance when conditions are favorable and ensuring safety and continuity when conditions deteriorate
2Reliability
If the system switches to low-level autonomous driving control when map accuracy is low, then the system can continue operation, but the autonomous driving capability is reduced
Solution Approach 1:
The system dynamically adjusts the autonomous driving level based on real-time assessment of map information quality. When operating in areas with low map accuracy, the system automatically downgrades to low-level autonomous driving control focused on lane-keeping functions, ensuring continuous safe operation while accepting reduced automation capabilities until map accuracy is restored
3Object-affected harmful factors
If the system monitors distance from neighboring vehicles, then the immediate safety is improved, but the autonomous driving cannot continue when map accuracy is low
Solution Approach 1:
The patent segments the autonomous driving control into distinct functional levels: high-level control that requires accurate map information for complex navigation and lane-change operations, and low-level control that handles basic lane-keeping and collision avoidance. When map accuracy is insufficient, the system transitions to low-level control, maintaining essential safety functions through sensor-based distance monitoring while preserving the ability to continue autonomous operation
Solution Approach 2:
When operating with low map accuracy, the system performs partial autonomous driving functions, specifically focusing on lane-keeping and basic collision avoidance through sensor monitoring. Rather than completely disabling autonomous control, the system maintains sufficient automation to handle critical safety functions while accepting reduced operational capabilities, ensuring continuous safe operation
Data Source
AI summary
A driving control method comprises: acquiring a destination of a vehicle; referring to a first map that includes identification information of a travel lane and a second map that does not include the identification information of the travel lane; calculating a route from a current position of the vehicle to the destination; when traveling along a first route included in the route and belonging to the first map, setting first driving control, while when traveling along a second route included in the route and belonging to the second map, setting second driving control with a lower level of autonomous driving than that of the first driving control; and creating a driving plan for the vehicle to travel along the route with contents of the set driving control. A driving control apparatus is based on the method.