Emergency Stop Assistant Using Predictive Route Data
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Solution Overview
Problem
Existing emergency stop systems for motor vehicles often pose a risk to the stopping vehicle and following traffic, as they may not select the safest location for an emergency stop, potentially leading to accidents and complicating rescue efforts.
Innovation Solution
A method and device that utilize predictive route data from navigation systems, including height information, curve radii, construction sites, and emergency lane information, to determine a low-risk emergency stop position, allowing the vehicle to be safely brought to a standstill in a location visible to following traffic and easily accessible for rescue services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If emergency stop is executed at the current location without route prediction, then the emergency stop response time is reduced, but the safety of the stopping position deteriorates
Solution Approach 1:
The system performs preliminary analysis of predictive route data including height information, curve radii, and construction site locations before executing the emergency stop. This allows the vehicle to maintain current speed while already having identified a safe stopping position, thus reducing the actual emergency stop response time while ensuring safety through advance route evaluation
Solution Approach 2:
The control device acts as an intermediary between the driver monitoring system and the vehicle's driving functions. It receives driver status data, evaluates predictive route data, and automatically determines safe stopping positions by analyzing route characteristics such as height information, curve radii, and construction sites, thereby mediating between immediate stop requirements and safety considerations
2Productivity
If emergency stop position is selected without considering route characteristics, then the stopping maneuver can be executed immediately, but the risk to following traffic increases
Solution Approach 1:
The system pre-evaluates route characteristics including height information from satellite navigation, curve radii, and construction site locations before the emergency stop is triggered. This preliminary analysis enables the control device to identify safe stopping positions that minimize risk to following traffic while maintaining rapid emergency response capability
Solution Approach 2:
The control device continuously monitors driver status data and combines it with predictive route data to dynamically determine safe stopping positions. The system uses feedback from route characteristic analysis (height, curves, construction sites) to adjust the emergency stop maneuver, ensuring that the selected position minimizes harm to following traffic while maintaining execution speed
3Measurement precision
If driver monitoring system continuously monitors driver status, then the detection of driver unfitness is improved, but the system complexity increases
Solution Approach 1:
The control device serves multiple functions: it controls driving functions, monitors driver status data, evaluates predictive route data, and determines safe stopping positions. By consolidating these diverse functions into a single control device, the system achieves high measurement precision for driver unfitness detection without proportionally increasing overall system complexity
Solution Approach 2:
The system merges the driver monitoring function with the emergency stop control function in a single integrated control device. This consolidation allows the system to continuously monitor driver status for unfitness detection while simultaneously using the same control unit to evaluate route characteristics and execute the emergency stop maneuver, thereby reducing redundant components and simplifying the overall system architecture
Data Source
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AI summary
The method involves supervising (S1) the driver of the vehicle for generating driver state data. The level of roadworthiness of the driver is determined (S2) from the driver state data. The vehicle is transferred (S3) in an automatic travel mode, if the degree of the roadworthiness of the driver falls below a predetermined threshold. A safe emergency stop maneuver is executed. A risk-minimum stopping position is determined (S5) for the emergency stop of the vehicle from a predictive route data of the future route course of the motor vehicle. The risk-minimum stopping position is approached (S6) with the automatic driving mode. The safe emergency stop maneuver is executed (S7) in the risk-minimum stopping position. An independent claim is included for an emergency stop aid for executing the safe emergency stop maneuver performing method.