Autonomous Driving Handover Control With Locked Hazard Flashing
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Solution Overview
Problem
Autonomous driving systems lack effective mechanisms to ensure safety during limit situations by automatically alerting surrounding vehicles and preventing user intervention that could compromise the safety of the host vehicle and others after initiating a minimum risk maneuver.
Innovation Solution
An autonomous driving control apparatus that automatically flashes an emergency light and inhibits user-controlled deactivation of the light until the vehicle is stopped, ensuring continuous alerting of surrounding vehicles during a minimum risk maneuver and preventing reactivation of autonomous driving until control authority is transferred back to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous driving system initiates a minimum risk maneuver in a limit situation, then the safety of the host vehicle and surrounding vehicles is improved, but the system lacks effective mechanisms to ensure continuous safety alerting and prevent user interference during the maneuver
Solution Approach 1:
The system performs preliminary actions by automatically activating the emergency light before the minimum risk maneuver is completed and before the vehicle is fully stopped. This ensures that safety alerting is established in advance and maintained throughout the critical period, preventing the need for complex post-maneuver adjustments and ensuring continuous visibility to surrounding vehicles.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the vehicle's stopping state and using this information to control the emergency light deactivation. The processor determines whether the vehicle is stopped and only allows emergency light deactivation when the vehicle has come to a complete stop, providing continuous safety alerting throughout the maneuver and preventing premature deactivation that could compromise safety.
2Ease of manufacture
If the system automatically flashes the emergency light during minimum risk maneuver, then surrounding vehicles are alerted effectively, but the user may attempt to release or deactivate the light which could compromise safety
Solution Approach 1:
The system applies preliminary anti-action by proactively preventing user deactivation attempts during the minimum risk maneuver. The processor is configured to ignore or block user inputs that attempt to deactivate the emergency light until the vehicle is determined to be stopped, countering potential harmful user interference before it can compromise safety. This ensures the alerting function remains active throughout the critical maneuver period.
3Ease of operation
If the system allows user control of the emergency light during autonomous driving, then ease of operation is improved, but safety alerting may be interrupted during critical minimum risk maneuvers
Solution Approach 1:
The system applies dynamics by dynamically adjusting the level of user control based on the driving situation. During normal autonomous driving, users can control the emergency light. However, when a minimum risk maneuver is initiated, the system dynamically restricts user control to prevent deactivation, and only restores full user control after the vehicle is determined to be stopped. This dynamic adjustment ensures safety alerting continuity during critical maneuvers while maintaining ease of operation during normal conditions.
Data Source
AI summary
An autonomous driving control apparatus for a vehicle includes: a processor that demands a user of a vehicle to take a control authority of the vehicle during an autonomous driving control when a current driving condition is in a limit situation during the autonomous driving control, and starts a minimum risk maneuver to disable reactivation of the autonomous driving control when the control authority is not transferred to the user; and a storage to store a set of instructions to be executed by the processor and data for determination and performance by the processor. In particular, the processor automatically flashes an emergency light when the minimum risk maneuver is started, and controls automatic flashing of the emergency light to not be released by the user when the vehicle is not in a stopped state.