Autonomous Driving Deactivation Control with Intermediate Phase
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Solution Overview
Problem
Current systems for controlling autonomous driving in vehicles often trigger unnecessary fallback strategies due to driver oversight or control device defects, leading to increased complexity and cost, as well as imposing stringent safety constraints and no room for error.
Innovation Solution
A control device that generates a second command to deactivate autonomous driving, which includes messaging the driver to regain control through specific vehicle operations, allowing resumption of control only after these operations are performed, and authorizing control resumption within a predefined time interval, reducing the risk of fallback strategies and simplifying the control device's design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an audible alert is broadcast to warn the driver to regain control, then driver attention is improved, but false alarms are triggered when the driver is unaware of the deactivation
Solution Approach 1:
The system performs preliminary actions by detecting driver awareness status before broadcasting the audible alert. The control means checks whether the driver is aware of the autonomous driving deactivation through monitoring their actions, and only triggers the alert when awareness is confirmed, thereby preventing false alarms while maintaining driver attention.
2Reliability
If stringent safety constraints are imposed on the control member, then operational safety is improved, but device complexity and cost increase
Solution Approach 1:
The system introduces an intermediary monitoring mechanism that tracks driver actions and awareness status. This intermediary layer acts as a mediator between the control member and the fallback strategy trigger, allowing the system to maintain high operational safety by verifying driver awareness before triggering alerts, while avoiding the need for overly complex safety constraints on the control member itself.
3Reliability
If the system requires driver awareness before allowing deactivation, then false fallback triggers are reduced, but the deactivation process becomes more complex
Solution Approach 1:
The system implements feedback by continuously monitoring driver actions and comparing them against expected patterns of awareness. The control means uses this feedback to determine whether the driver is aware of the deactivation, and only triggers the audible alert when the feedback confirms awareness. This feedback mechanism reduces false fallback triggers while maintaining a relatively simple deactivation process.
Data Source
Figure 1~2
AI summary
A device (DC) controlling the activation/deactivation of an autonomous driving function within a vehicle (V) with partly autonomous driving. This device (DC) comprises firstly a command unit (OC) generating a first command able to activate this function when it is actuated by the driver and generating a second command when it is actuated by the driver when the autonomous driving function is active, and secondly control means (MC) that, when they receive this second command, trigger the provision of at least one message indicating, to the driver, each operation to be performed in order to resume at least partial control of the driving, and then authorize this resumption of control when each indicated operation has been performed by the driver.