Remote Assistance Continuation in Automated Driving Control
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Solution Overview
Problem
Automated driving systems face issues with inadvertent termination of remote assistance by a remote operator due to changes in the vehicle's surrounding situation during automated driving control, leading to disruptions in continuous operation.
Innovation Solution
Implementing a watchful-waiting period during which communication with the remote assistance device is maintained, allowing the remote operator to make a second assistance determination, thereby ensuring continuous automated driving control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the automated driving system ends remote assistance after receiving one assistance determination, then the system operation is simplified and communication resources are released, but the system cannot respond to significant changes in surrounding situation and may terminate assistance inappropriately
Solution Approach 1:
The system pre-establishes a communication continuation period after receiving assistance determination, during which the communication connection is maintained and ready for potential second assistance determination. This preliminary preparation allows the system to quickly respond to situation changes without needing to re-establish communication connections.
Solution Approach 2:
The communication state transitions from active to standby during the continuation period, allowing flexible adaptation between different operational states. The system dynamically adjusts communication resource allocation based on whether a second assistance determination is needed, optimizing both efficiency and reliability.
2Device complexity
If communication with the remote assistance device is ended after first assistance determination, then communication resources are freed and system complexity is reduced, but the remote operator cannot make second assistance determination in response to situation changes
Solution Approach 1:
The communication process is segmented into distinct phases: active communication phase for first assistance determination, and continuation period phase for potential second determination. This segmentation allows the system to manage communication resources efficiently while maintaining necessary connectivity during critical periods.
Solution Approach 2:
The communication continuation period acts as an intermediary state between full active communication and complete communication termination. This intermediate state maintains the communication channel in a low-resource mode, enabling quick reactivation if needed while conserving resources during stable periods.
3Speed
If the automated driving control is performed according to first assistance determination without continued communication, then the control process is streamlined and execution speed is improved, but the control may become inappropriate if surrounding situation changes significantly
Solution Approach 1:
The system implements feedback mechanisms during the communication continuation period, allowing the remote operator to provide second assistance determinations if situation changes are detected. This feedback loop ensures control appropriateness is maintained while minimizing communication overhead during stable execution phases.
Solution Approach 2:
The communication continuation period creates a periodic check mechanism where the system can reassess the need for assistance at predetermined intervals. This periodic action ensures that control execution remains appropriate without requiring continuous communication, balancing speed and reliability.
Data Source
AI summary
The automated driving system includes a remote assistance device that communicates with the vehicle in response to an assistance request from the vehicle and performs remote assistance of the vehicle by a remote operator. In response to occurrence of a predetermined assistance-required situation during execution of the automated driving control, the automated driving system transmits the assistance request for the remote assistance for the assistance-required situation that has occurred. The automated driving system receives an assistance determination of the remote assistance by the remote operator from the remote assistance device and executes the automated driving control in the assistance-required situation in accordance with the received assistance determination. The automated driving system sets a period for continuing communication with the remote assistance device from a time point of receiving the assistance determination and receives a second assistance determination for the remote assistance by the remote operator during the period.