Remote Vehicle Intervention Margin for Safe Driving Plan Changes
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Solution Overview
Problem
Autonomous driving vehicles face safety issues when operators cannot intervene in control, particularly due to limited monitoring capacity and communication problems, leading to potential unsafe situations.
Innovation Solution
A remote control system that calculates an operator intervention margin based on available operators and communication quality, sending instructions to the vehicle to adjust its driving plan, such as changing routes or stopping, to ensure safety when intervention is not possible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a limited number of operators simultaneously monitor numerous vehicles, then the remote control system can cover more vehicles, but an operator is unable to intervene in control of a vehicle at the desired timing
Solution Approach 1:
The system performs preliminary actions by continuously monitoring communication quality and calculating operator intervention margins before actual intervention is needed. When the margin falls below the threshold, the system proactively changes the driving plan or requests operator attention in advance, ensuring timely intervention capability even with limited operators monitoring numerous vehicles
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring communication quality between vehicles and the remote control system, calculating operator intervention margins based on this feedback, and dynamically adjusting driving plans or alerting operators when intervention may be needed, thereby maintaining reliable intervention timing across multiple vehicles
2Adaptability or versatility
If communication between vehicle and remote control system is cut, then the system operates independently, but the operator cannot intervene in control of the vehicle
Solution Approach 1:
The system performs preliminary actions by continuously monitoring communication quality and calculating operator intervention margins before communication is completely lost. When the margin falls below the threshold during communication disruption, the system proactively changes the driving plan to safer alternatives or requests operator attention in advance, ensuring intervention capability is maintained even when communication is intermittently cut
Solution Approach 2:
The system prepares compensatory measures in advance by maintaining buffer margins for operator intervention and having pre-planned alternative driving routes ready. When communication is disrupted, these beforehand cushioning measures allow the system to continue operating safely with reduced intervention capability, as the margin calculation already accounts for potential communication loss scenarios
3Reliability
If the vehicle runs into an unforeseen situation, then human intervention is desired for safety, but the control device cannot suitably control the vehicle
Solution Approach 1:
The system introduces an intermediary mechanism by calculating operator intervention margins and using these margins to determine when to change driving plans or request human intervention. This intermediary calculation layer bridges the gap between autonomous control limitations and human intervention needs, enabling safer handling of unforeseen situations by systematically determining when human oversight is required
Solution Approach 2:
The system applies parameter changes by dynamically adjusting the operator intervention margin threshold and using this parameter to control the transition between autonomous operation and human intervention. When the calculated margin falls below the threshold during unforeseen situations, the system changes the driving plan parameter or triggers human intervention, thereby resolving the limitation of control devices facing unexpected scenarios
Data Source
AI summary
A remote control system able to remotely control an autonomously driving vehicle, comprises a communication device able to communicate with the vehicle, an input device to be operated by an operator for intervening in control of the vehicle, a margin calculating part configured to calculate an operator intervention margin showing a possibility of an operator being able to intervene in control of the vehicle, and an instructing part configured to send the vehicle instructions relating to control of the vehicle through the communication device. The instructing part is configured to send the vehicle instructions from the operator when the input device is operated by the operator and send the vehicle an instruction for changing a driving plan of the vehicle when the operator intervention margin is equal to or less than a predetermined value.