Automated Valet Parking with Feedback-Corrected Vehicle Positioning
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Solution Overview
Problem
Current automated valet parking systems face challenges with position measurement accuracy, leading to potential vehicle collisions and inefficiencies in parking and retrieval processes due to errors in vehicle positioning data between vehicles and infrastructure facilities.
Innovation Solution
The system allows vehicles to self-measure their position and compares this with the position measured by the infrastructure facility, using communication protocols and sensors to minimize errors, enabling autonomous parking with reduced inaccuracies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the vehicle self-measures its position using onboard sensors, then the vehicle can autonomously determine its location, but measurement errors occur leading to positioning inaccuracies
Solution Approach 1:
The infrastructure facility measures the vehicle's position independently and feeds back this information to the vehicle. The vehicle compares its self-measured position with the infrastructure facility's measurement, uses the more accurate one, and corrects positioning errors through this feedback loop, thereby improving measurement precision while maintaining autonomous operation capability
Solution Approach 2:
The infrastructure facility acts as an intermediary that provides reference position measurements to the vehicle. By introducing this external reference system, the vehicle can correct its own measurement errors and achieve higher positioning accuracy without completely relying on its own potentially erroneous sensors
2Device complexity
If the infrastructure facility measures vehicle position centrally, then centralized control is achieved, but communication errors and delays may occur
Solution Approach 1:
The system allows each vehicle to independently measure and use its own position data locally, while also receiving reference data from the infrastructure facility. This distributed approach with local decision-making reduces communication dependencies and improves reliability, as each vehicle can operate autonomously even if communication fails
3Extent of automation
If automated valet parking is implemented without position error correction, then parking automation is achieved, but vehicle collisions and inefficiencies occur due to positioning errors
Solution Approach 1:
The system proactively identifies and corrects position measurement errors before they lead to harmful outcomes. By comparing positions in advance and selecting the more accurate measurement, the system prevents collision risks rather than reacting to them after they occur
Solution Approach 2:
The continuous comparison and correction of position data through feedback mechanisms ensures that the vehicle operates with accurate position information throughout the automated parking process, eliminating collision risks associated with positioning errors
Data Source
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AI summary
An automated valet parking method is provided. The method includes initiating an automated valet parking, transmitting a target position and a guide route from an infrastructure facility to a vehicle, performing an autonomous driving to the target position along the guide route, measuring a vehicle position, calculating accuracy of the measured vehicle position, performing an autonomous parking to the target position.