Wireless Charging Access Point Identification via Signal Analysis
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Solution Overview
Problem
In wireless electric vehicle charging, vehicles face challenges in identifying compatible charging pads among multiple available wireless access points, leading to inefficiencies and potential security risks due to improper connections.
Innovation Solution
A system utilizing a processor to detect and analyze communication signals from access points, determining compatibility between the vehicle and charging pads, and facilitating secure connections by broadcasting and receiving credentials and compatibility characteristics before initiating charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a vehicle connects to any available wireless access point, then connection speed is improved, but connection reliability deteriorates due to incompatible or malicious access points
Solution Approach 1:
The system performs preliminary verification of access point compatibility and authenticity before establishing a connection. The vehicle's processor analyzes communication signals from access points to determine affiliation with a wireless charging pad and assess compatibility characteristics, preventing connections to incompatible or malicious access points while maintaining efficient connection establishment.
2Reliability
If a vehicle scans multiple access points to find compatible charging pads, then connection reliability is improved, but time consumption increases
Solution Approach 1:
The system performs a limited scan of available access points, analyzing communication signals to identify those affiliated with wireless charging pads. Rather than exhaustively checking all possible access points, the processor efficiently evaluates compatibility characteristics and connection credentials from relevant access points, achieving reliable connection without excessive time consumption.
3Ease of operation
If wireless access points broadcast open networks for easy connection, then ease of operation is improved, but security vulnerability increases due to malicious access points
Solution Approach 1:
The system implements a feedback mechanism where the vehicle's processor continuously monitors and analyzes communication signals from access points during the connection process. By evaluating compatibility characteristics and connection credentials in real-time, the system can identify and reject malicious access points that attempt to impersonate legitimate charging pad networks, maintaining security while preserving ease of connection for legitimate access points.
Data Source
AI summary
A system includes a processor configured to detect communication signals from an access point. The processor is also configured to determine an access point affiliation with a wireless charging pad based on data included in the communication signals, the data also providing charging pad compatibility characteristics. The processor is further configured to determine vehicle compatibility with the charging pad based on the compatibility characteristics and responsive to a vehicle being compatible with the charging pad, connect to the access point.