Autonomous Parking Emergency Stop Without Pre-Check Delay
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Solution Overview
Problem
Fully automated valet parking systems face challenges in reducing the risk of accidents or collisions within parking lots, as existing methods require time-consuming checks before initiating a stop, which can lead to insufficient braking distance and potential collisions.
Innovation Solution
A method where a driverless vehicle immediately stops in response to an emergency stop signal without prior checks, utilizing a communication network to transmit the signal directly, ensuring rapid reaction and minimizing braking distance reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a check is performed to verify whether stopping is necessary before the vehicle stops, then the accuracy of stopping decision is improved, but the stopping time increases and braking distance may become insufficient
Solution Approach 1:
The patent extracts the verification/checking step from the emergency stop process. Instead of performing a check to verify whether stopping is necessary, the system directly executes the stop action upon receiving the emergency stop signal. This removal of the verification step eliminates the time delay while maintaining safety through the reliability of the emergency stop signal generation.
Solution Approach 2:
The system performs preliminary preparation by having the emergency stop capability pre-configured and ready. The emergency stop signal transmission path and vehicle stopping mechanism are prepared in advance, allowing immediate execution without verification delays when a signal is received.
2Reliability
If a check is performed before stopping, then the reliability of the stopping process is improved, but the response speed decreases
Solution Approach 1:
The verification check step is extracted and removed from the emergency stop process. The system relies on the inherent reliability of the emergency stop signal generation and transmission mechanism rather than adding a verification step, thereby maintaining reliability while achieving faster response.
Solution Approach 2:
The emergency stop system is designed to be self-acting and self-reliant. Once an emergency stop signal is generated (by any authorized source), the system automatically executes the stop without requiring additional verification or external confirmation, enabling immediate response while maintaining operational reliability.
Data Source
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AI summary
The invention relates to a method for operating a vehicle, wherein during a driverless journey of the vehicle within a parking area, the driverlessly driving vehicle stops in response to an emergency stop signal, wherein the method is free from a step of checking whether the stopping is necessary. The invention also relates to a corresponding device for operating a vehicle, and to a vehicle. The invention further relates to a method for operating a parking area for vehicles, as well as to a corresponding parking area. In addition, the invention relates to a computer program.