Automated Driving Control Level Adjustment for Dense Map Coordinates
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Solution Overview
Problem
Existing vehicle control systems face challenges in performing appropriate automated driving due to increased processing loads when the amount of map information increases, making it difficult to maintain efficient automated driving.
Innovation Solution
A vehicle control device and method that utilize a recognizer to identify the surrounding situation of a vehicle and a driving controller to adjust the level of automated driving based on the number of coordinate points in the map information, specifically lowering the control level when the number of coordinate points exceeds a certain threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the amount of map information is increased to improve automated driving accuracy, then the reliability of automated driving is improved, but the processing load increases making appropriate automated driving difficult
Solution Approach 1:
The patent segments the map information processing by dividing coordinate points into multiple ranges (first range in front of vehicle, second range behind vehicle) and processes each range separately. This segmentation allows the system to handle large amounts of map information without overwhelming the processor, as each range is processed independently with controlled data volume.
Solution Approach 2:
The patent applies different processing priorities to different spatial regions. The first range in front of the vehicle is given wider coverage and higher processing priority compared to the second range behind the vehicle. This local quality approach ensures that critical forward-looking map information is processed with higher fidelity while reducing the overall processing burden.
2Manufacturing precision
If the number of coordinate points is increased to improve route accuracy, then the manufacturing precision of route information is improved, but the processing load increases
Solution Approach 1:
The patent divides the route coordinate points into multiple ranges along the travel direction (first range in front, second range behind). This segmentation allows the system to maintain high route accuracy within each segment while avoiding the need to process all coordinate points simultaneously, thus preserving processing efficiency.
Solution Approach 2:
The patent implements partial action by focusing processing resources on the most critical ranges. The first range in front of the vehicle is processed with higher priority and wider coverage, while the second range behind the vehicle receives reduced processing. This partial action approach maintains sufficient route accuracy for safe operation without the excessive processing burden of handling all coordinate points with equal detail.
Data Source
AI summary
A vehicle control device includes a recognizer configured to recognize a surrounding situation of a vehicle and a driving controller configured to perform automated driving for controlling at least one of acceleration, deceleration, and steering of the vehicle on the basis of the situation recognized by the recognizer and map information including a plurality of coordinate points indicating lanes on a route of the vehicle. The driving controller changes a control level of the automated driving in accordance with the number of coordinate points.