Automated Valet Parking Braking Abnormality Detection
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Solution Overview
Problem
Automated valet parking systems face challenges in detecting abnormalities in braking devices or tires, which affect deceleration performance and accuracy of vehicle travel control, leading to potential safety issues and reduced service reliability.
Innovation Solution
An automated valet parking system that includes processors to analyze braking result information, determining if the braking distance or error distance deviates from an acceptable range, and transmitting notification of any abnormalities to the user's terminal device, allowing for timely inspection or repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automated valet parking service is provided without abnormality detection, then service automation is improved, but safety and reliability deteriorate due to undetected braking or tire abnormalities
Solution Approach 1:
The system performs preliminary abnormality detection by analyzing braking result information (braking distance, error distance) before the vehicle causes safety issues. The processor continuously monitors braking performance and detects abnormalities in advance, allowing preventive maintenance while maintaining automated operation.
Solution Approach 2:
The system implements feedback by transmitting abnormality notifications to the user's terminal device when deviations are detected. This closed-loop feedback mechanism allows the automated system to inform users of potential issues, enabling them to take appropriate actions while the vehicle remains in automated parking service.
2Measurement precision
If continuous monitoring of braking performance is implemented, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The vehicle's existing braking system and control unit serve the dual purpose of both performing braking operations and monitoring braking performance. The control unit utilizes available braking result information (braking distance, error distance) to detect abnormalities, eliminating the need for separate dedicated monitoring hardware and reducing system complexity.
3Reliability
If abnormality detection and notification system is added, then service reliability is improved, but device complexity increases
Solution Approach 1:
The control unit is designed to perform multiple functions: it controls vehicle braking operations, analyzes braking result information for abnormality detection, and generates abnormality notifications. This multi-functional design eliminates the need for separate dedicated abnormality detection and notification systems, maintaining reliability while minimizing additional complexity.
Data Source
AI summary
An automated valet parking system provides an automated valet parking service in a parking lot. A vehicle supporting the automated valet parking service executes braking control so as to automatically decelerate and stop before a target stop position in the parking lot. Braking result information indicates a braking distance until the vehicle is stopped by the braking control or an error distance between the target stop position and an actual stop position. The automated valet parking system determines whether or not the braking distance or the error distance deviates from an acceptable range. When the braking distance or the error distance deviates from the acceptable range, the automated valet parking system decides that an abnormality occurs in a braking device or a tire of the vehicle and transmits notification information notifying the abnormality occurrence to a terminal device operated by a user of the vehicle.