Vehicle Availability Coordinator for Autonomous Emergency Navigation
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Solution Overview
Problem
Existing vehicle control systems fail to maintain optimal availability and drivability when system failures occur, often leading to unnecessary breakdowns and safety risks, as they do not effectively switch to emergency modes or activate autonomous driving to ensure safe operation or navigation to a repair location.
Innovation Solution
A vehicle system comprising an availability coordinator that monitors movement and functional systems, switching them to emergency modes or activating autonomous driving based on availability, using data buses like CAN or FlexRay to manage modes and ensure safe operation, including autonomous navigation and emergency alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous driving control system is deactivated when system failures occur, then driver safety is prioritized, but vehicle availability and drivability are reduced
Solution Approach 1:
The control system dynamically switches between different operational modes (normal mode, emergency mode, autonomous mode) based on system availability status. When failures are detected, the system transitions from manual control to autonomous control, and when systems are restored, it transitions back to normal operation, optimizing both safety and availability throughout the operational lifecycle
Solution Approach 2:
The system changes the operational parameters of the vehicle by switching between different control modes. When system availability drops below thresholds, the control mode parameter changes from manual to autonomous, and the operational state parameter changes from disabled to enabled, allowing continued safe operation
2Reliability
If the vehicle breaks down when system failures occur, then unsafe operating conditions are avoided, but driver convenience and safety are compromised
Solution Approach 1:
The system performs preliminary actions by automatically activating autonomous driving control before the driver would need to manually intervene. When system failures are detected, the control system proactively takes over vehicle operation, navigates to safe locations, and manages emergency procedures without requiring driver action, thereby maintaining convenience while ensuring safety
3Device complexity
If emergency modes are not activated when system failures occur, then system complexity is reduced, but vehicle drivability and availability deteriorate
Solution Approach 1:
The autonomous driving control system serves multiple functions: it acts as a backup control system for safety, an emergency mode manager for continued operation, and an autonomous navigator for reaching safe locations. This multi-functionality allows a single control system to handle normal operation, emergency responses, and recovery procedures without requiring separate dedicated systems for each function
Data Source
AI summary
The invention relates to a vehicle (10), comprising at least one movement system (11, 12, 13) which can influence the movement of the vehicle (10) and operate in a normal mode and in at least one emergency mode; - an availability coordinator (14) which is coupled to each movement system (11, 12, 13); - and a control system (15) for an autonomous driving process; wherein the availability coordinator (14) is coupled to the control system (15) and is designed such that said coordinator monitors the availability of each movement system (11, 12, 13); specifies whether each movement system (11, 12, 13) is to operate in the normal mode or in one of the emergency modes dependent on at least one of the availabilities; and activates or deactivates the control system (15) dependent on at least one of the availabilities. The invention further relates to a method for controlling a vehicle (10).