Autonomous Driving Procedure Control for Directional Sensor Failure
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Solution Overview
Problem
Existing automatic driving systems are unable to safely continue operation when an abnormality occurs in the vehicle's surroundings recognition function, as they simply stop the vehicle, which may not be appropriate in all situations and does not consider the need for continued operation based on the surrounding status.
Innovation Solution
A traveling control device that includes a peripheral recognition unit, an abnormality determination unit, and a control unit, which modifies the automatic driving procedure based on the direction and nature of the abnormality, allowing for assistance from other vehicles in the platoon to maintain recognition and continue safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle stops operation when an abnormality occurs in the recognition function, then the safety is improved, but the productivity deteriorates due to unnecessary interruptions
Solution Approach 1:
The patent applies local quality by modifying the automatic driving procedure specifically in the abnormality recognition direction while maintaining normal operation in other directions. The system determines the direction of abnormality occurrence and adjusts the procedure locally for that direction, allowing the vehicle to continue operating safely without complete shutdown.
Solution Approach 2:
The system dynamically adjusts the automatic driving procedure based on the detected abnormality direction. Rather than a static stop-or-continue decision, the procedure is modified in real-time according to the specific direction where the abnormality occurred, enabling adaptive continuation of operation with appropriate procedural changes.
2Productivity
If the vehicle continues operation without modifying procedure when abnormality occurs, then the productivity is maintained, but the reliability deteriorates due to potential unsafe operation
Solution Approach 1:
The system takes preliminary anti-action by proactively modifying the automatic driving procedure in response to detected abnormalities. Rather than waiting for unsafe conditions to develop, the system anticipates potential risks by adjusting the procedure in the abnormality direction before unsafe operation can occur, thus maintaining both continuity and safety.
3Device complexity
If the system uses only the own vehicle's recognition function, then the device complexity is low, but the measurement precision deteriorates when abnormality occurs
Solution Approach 1:
The patent introduces other vehicles in the platoon as intermediary entities that provide assistance in the abnormality recognition direction. When an abnormality is detected, the system utilizes recognition data from neighboring vehicles to compensate for the loss of recognition accuracy, effectively using external intermediaries to maintain measurement precision without significantly increasing overall system complexity.
Data Source
AI summary
A traveling control device includes: a peripheral recognition unit which recognizes a status around an own vehicle; an abnormality determination unit which determines whether an abnormality has occurred in the recognition function of the peripheral recognition unit; and a control unit which, if the abnormality determination unit has determined that an abnormality has occurred in the recognition function of the peripheral recognition unit, executes procedure modification control to modify an automatic driving procedure in the automatic driving system in accordance with an abnormality recognition direction which is a direction in which the abnormality in the recognition function has occurred.