Vehicle Lane Control Mode Switching for Map-Line Mismatch
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Solution Overview
Problem
Existing vehicle control systems fail to appropriately execute driving control based on the center line of the travel lane, as they rely solely on the match between camera and map road division line information without considering the vehicle's actual lane center line.
Innovation Solution
A vehicle control system that recognizes the surrounding situation, controls steering and acceleration/deceleration based on map information, and switches driving modes to ensure alignment with the camera road division line when a mismatch is detected, using predetermined distance comparisons to adjust driving control to the actual lane center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle control is executed by inspecting the match between camera road division line information and map road division line information, then driving control can be performed using available road line data, but driving control cannot be executed appropriately when the center line of the travel lane is not considered
Solution Approach 1:
The patent introduces a lane center line as an intermediary element between camera road division line information and map road division line information. By comparing the lane center line derived from camera images with the map road center line, the system achieves more precise lane alignment and resolves the contradiction between executing driving control and achieving accurate lane center line alignment.
2Ease of operation
If the driving mode is changed to a lighter task mode (second driving mode) for automated control, then driver burden is reduced, but driving control may become inaccurate when map road division line information does not match actual road conditions
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously compares camera road division line information with map road division line information. When mismatches are detected, the system provides feedback to switch from the second driving mode (lighter task) to the first driving mode (heavier task), ensuring driving control accuracy is maintained while allowing automated control under suitable conditions.
Solution Approach 2:
The patent makes the driving mode dynamic rather than static. The system can switch between first driving mode (heavier task) and second driving mode (lighter task) based on real-time comparison results between camera and map road division line information. This dynamic adjustment allows the system to optimize between driver burden and control accuracy according to actual road conditions.
Data Source
AI summary
Provided is a vehicle control device configured to: recognize a surrounding situation of a vehicle; control steering and acceleration/deceleration of the vehicle based on the recognized surrounding situation and map information; determine a driving mode of the vehicle as any one of a plurality of driving modes including a first driving mode and a second driving mode; determine whether or not a camera road division line matches a map road division line; and compare, when the camera road division line and the map road division line are determined not to match each other during traveling of the vehicle in the second driving mode, a first distance with a second distance, and when the second distance is larger than the first distance, change the second driving mode to the first driving mode that is performed referring to the camera road division line.