Remote Driving Control for Abnormality-Based In-Vehicle Handover
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Solution Overview
Problem
Existing remote driving systems fail to effectively manage abnormalities in remote drivers or systems, leading to potential vehicle stoppages even when in-vehicle driving could safely continue.
Innovation Solution
A remote driving system that determines abnormalities in remote drivers or systems and permits in-vehicle driving when necessary, allowing the vehicle to switch to in-vehicle operation to prevent stoppages, using a remote abnormality determination unit and in-vehicle driving permission unit to manage the transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle is automatically stopped in response to communication interruption between the vehicle and the remote monitoring center, then the safety of the remote driving system is improved, but the continuity of vehicle operation deteriorates
Solution Approach 1:
The system dynamically adjusts the driving permission state based on abnormality detection results. The ECU transitions between permitting and forbidding in-vehicle driving operations according to the detected abnormality state, creating a flexible response mechanism that adapts to changing conditions rather than using a fixed stop rule
Solution Approach 2:
The system implements a feedback loop where the ECU sequentially determines the abnormality state and adjusts driving permission accordingly. The continuous monitoring and dynamic adjustment of driving permission based on abnormality detection creates a closed-loop control system that responds to system conditions
2Productivity
If in-vehicle driving is permitted when abnormality occurs in remote determination target, then the continuity of vehicle operation is improved, but the safety control capability deteriorates
Solution Approach 1:
The system applies different control qualities to different driving modes. Remote driving operations have one level of safety control, while in-vehicle driving operations have a different level of safety control. The ECU selectively permits or forbids in-vehicle driving operations based on the specific abnormality state, applying appropriate safety control quality to each operational context
Solution Approach 2:
The system changes the driving permission parameter (permitted/forbidden state) based on the detected abnormality state. This parameter change allows the system to maintain continuity of operation when safe by permitting in-vehicle driving, while ensuring safety control by forbidding it when necessary
3Adaptability or versatility
If the system sequentially determines abnormality state and dynamically adjusts driving permission, then the adaptability to abnormal conditions is improved, but the system complexity increases
Solution Approach 1:
The ECU performs multiple functions: it monitors communication status, determines abnormality states, and controls driving permission. This multi-functional approach consolidates what could be separate complex systems into a single control unit, achieving adaptability while managing complexity through functional integration
Data Source
AI summary
A remote driving system controls a remote driving vehicle, which is capable of performing a remote driving and an in-vehicle driving. The remote driving system is configured to: sequentially determining occurrence of an abnormality in a remote determination target, the remote determination target being a remote driver or a remote system operated by the remote driver; permit the in-vehicle driving in response to determining occurrence of the abnormality in the remote determination target; and forbid the in-vehicle driving in response to failing to determine occurrence of the abnormality in the remote determination target.