Vehicle Controller for Map Inconsistency Switching in Autonomous Driving
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Solution Overview
Problem
Existing autonomous driving systems face challenges in accurately switching between multiple maps with inconsistent information, leading to potential navigation errors and driver discomfort.
Innovation Solution
A vehicle controller that detects inconsistent sections in road information between two maps, makes separate driving plans for each section, and switches control based on the more accurate and frequently updated map, with timely notification to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple maps are used for making a travel plan for the same road section, then the accuracy and reliability of navigation can be improved, but the complexity of determining when to switch between maps increases
Solution Approach 1:
The system performs preliminary detection of inconsistent sections between maps before the vehicle reaches them. By identifying these sections in advance and determining optimal switching points beforehand, the system prepares map switchings proactively rather than reactively, reducing the complexity of real-time decision-making while maintaining high navigation reliability
Solution Approach 2:
The road is divided into distinct sections based on map consistency. The system segments the travel route into sections where one map is reliable and sections where another map is more accurate, allowing for systematic map switching at predefined boundaries rather than continuous complex evaluation
2Reliability
If map switching is performed at inconsistent sections, then navigation accuracy can be maintained, but driver discomfort and anxiety may increase due to sudden changes in driving plan
Solution Approach 1:
The system determines optimal map switching points in advance before the vehicle reaches inconsistent sections. By calculating these switching points proactively and notifying the driver beforehand, the system avoids sudden, unexpected changes in driving plans, thereby maintaining navigation accuracy while reducing driver anxiety and discomfort
Solution Approach 2:
The system takes preliminary anti-action by notifying the driver of upcoming map switches before they occur. This advance notification prepares the driver for potential changes in driving behavior, counteracting the negative effect of sudden plan changes and maintaining driver comfort while ensuring accurate navigation through the inconsistent section
Data Source
AI summary
A vehicle controller includes a processor configured to detect an inconsistent section where information on a road represented in a first map is inconsistent with information on the road represented in a second map, make a first driving plan for a first section from a current position of a vehicle to a control switching point which is a start point of the inconsistent section or is nearer the vehicle than the start point, based on one of the first and second maps, make a second driving plan for a second section beyond the control switching point including the inconsistent section, based on the other of the first and second maps, before the vehicle reaches the control switching point, and control the vehicle so as to follow the first driving plan on the first section and follow the second driving plan on the second section.