Automatic Driving System Mode Transition
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Solution Overview
Problem
Existing automatic driving systems face challenges in maintaining continuous operation when the driving environment deteriorates, leading to increased cancellation of automatic driving and insufficient time for drivers to take over, reducing convenience and safety.
Innovation Solution
An automatic driving system that includes a driver monitor, a driver state determining unit, and two automatic driving controllers to monitor and determine the driver's state, allowing the system to transition between different driving modes based on the driver's ability to monitor the forward environment, ensuring continued operation in complex conditions and alerting the driver when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the automatic driving system operates in complex traveling environments, then the adaptability of the system is improved, but the reliability decreases due to increased cancellation and insufficient driver takeover time
Solution Approach 1:
The system dynamically adjusts the automatic driving mode based on the driver's monitoring state and traveling environment complexity. When the environment is simple, the system operates in first automatic driving mode without requiring driver monitoring. When the environment becomes complex, the system transitions to second automatic driving mode that requires driver monitoring, or to manual driving mode if the driver is not monitoring, thereby adapting to different conditions while maintaining reliability
Solution Approach 2:
The system continuously monitors the driver's state through the driver monitor and uses this feedback to determine whether the driver is in a forward monitoring state. This feedback mechanism allows the system to adjust the automatic driving mode appropriately, ensuring that the driver can take over when necessary while maintaining system reliability in complex environments
2Reliability
If the system requires driver monitoring in complex environments, then the safety is improved, but the ease of operation decreases as drivers must maintain attention
Solution Approach 1:
The system dynamically adjusts monitoring requirements based on traveling environment complexity. In simple environments, no driver monitoring is required, maintaining ease of operation. In complex environments, the system requires driver monitoring to ensure safety, creating a dynamic balance between safety and ease of operation
3Reliability
If the system cancels automatic driving when environment deteriorates, then the reliability is maintained, but the productivity decreases due to interruption of continuous operation
Solution Approach 1:
Instead of canceling automatic driving when the environment deteriorates, the system dynamically transitions between different automatic driving modes. The system continues operating automatically in simplified mode while requiring driver monitoring, or transitions to manual driving mode, thereby maintaining continuous operation and productivity while preserving reliability through appropriate mode selection
Data Source
AI summary
An automatic driving system includes a driver monitor, a driver state determining unit, a first automatic driving controller, and a second automatic driving controller. The first automatic driving controller controls a first automatic driving mode for causing a vehicle to travel by automatic driving under a preset first traveling environment regardless of whether a driver is in a forward monitoring state. The second automatic driving controller controls a second automatic driving mode for causing the vehicle to travel by the automatic driving in a situation where the driver state determining unit determines, based on a driver state detected by the driver monitor, that the driver is in the forward monitoring state, and the vehicle is under a second traveling environment which is more complicated than the first traveling environment.