Autonomous Driving Mode Switching for Map and Recognition Errors
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Solution Overview
Problem
Conventional vehicle control systems fail to flexibly change driving control modes when map information on the vehicle differs from recognized external information, leading to potential errors in lane mark recognition and navigation.
Innovation Solution
A vehicle control device that includes a hardware processor to recognize the surrounding situation, control steering and acceleration/deceleration without driver input, and dynamically adjust driving modes by determining errors in map information and lane mark recognition, setting appropriate travel continuation distances based on the presence and position of preceding vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vehicle control system strictly follows map information for driving control, then navigation accuracy is improved, but flexibility to adapt to actual road conditions deteriorates
Solution Approach 1:
The system continuously compares recognized lane mark information with map information, detects discrepancies between them, and uses this feedback to determine whether to switch from map-guided control to recognition-based control, enabling adaptive response to actual road conditions while maintaining navigation accuracy
Solution Approach 2:
The driving control mode is dynamically adjusted based on the comparison result between map information and recognized information. The system transitions between different control modes (map-based vs. recognition-based) in real-time, making the control system flexible and adaptable to varying road conditions
2Adaptability or versatility
If the vehicle control system switches to recognition-based control when map and recognized information differ, then adaptability to actual conditions is improved, but control reliability deteriorates due to potential recognition errors
Solution Approach 1:
The system introduces an intermediate verification step by comparing recognized lane mark information with map information before switching control modes. This comparison acts as a mediator to filter out false recognitions and ensure that control mode switching occurs only when genuine discrepancies exist, thereby maintaining reliability while improving adaptability
Solution Approach 2:
The system performs preliminary verification by checking for recognition errors through comparison with map information before fully switching to recognition-based control. This preliminary anti-action prevents premature or erroneous mode switching, ensuring control reliability is maintained while still allowing adaptability when genuine discrepancies are detected
3Reliability
If the travel continuation distance is shortened when lane mark recognition errors are detected, then safety is improved, but driving efficiency deteriorates
Solution Approach 1:
The travel continuation distance is dynamically adjusted based on the presence of preceding vehicles. When a preceding vehicle is detected, the system extends the travel continuation distance beyond the standard safety threshold, allowing the vehicle to maintain automated control longer and improve efficiency while still ensuring safety through continuous monitoring and the ability to switch modes
Data Source
AI summary
A vehicle control device recognizes a surrounding situation of a vehicle, controls steering and acceleration/deceleration of the vehicle without depending on an operation of a driver, determines any one of a plurality of driving modes including a first driving mode and a second driving mode as a driving mode of the vehicle, changes the driving mode of the vehicle to a driving mode in which the task is heavier when a task is not executed by the driver, determines whether there is an error in the map information and determines whether there is a recognition error, and when an error is determined in the map information, there is a recognition error while the vehicle is traveling in the second driving mode, and a preceding vehicle is recognized within a first predetermined distance, sets a travel continuation distance in the second driving mode to be longer.