Hydrogen Fueling Communication Using NFC and V2X Redundancy
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Solution Overview
Problem
Current communication systems for hydrogen fueling and electric charging, such as those using the IrDA protocol, fail to meet safety integrity levels and do not provide reliable risk assessment, necessitating improved communication methods for hydrogen fueling and electric charging.
Innovation Solution
Implementing a bidirectional communication system using a combination of Near Field Communication (NFC) and Vehicle-to-Everything (V2X) networks between hydrogen fueling stations and vehicles, enabling the transmission of critical data like pressure and temperature readings, and ensuring safety through redundant communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unidirectional IrDA protocol communication is used for hydrogen fueling, then device complexity is reduced, but safety integrity level and reliability are insufficient
Solution Approach 1:
The communication system is segmented into multiple independent communication channels: NFC for initial connection and identification, and V2X for critical safety data exchange. This segmentation allows each channel to be optimized for its specific function, with V2X providing high-reliability bidirectional communication for safety-critical parameters while NFC handles authentication and basic identification.
Solution Approach 2:
The patent introduces an intermediary communication architecture where the V2X system acts as a mediator between the fueling station and vehicle systems. This intermediary layer ensures standardized, reliable bidirectional data exchange for safety-critical information such as pressure, temperature, and flow rate, while maintaining compatibility with existing IrDA-based systems through the NFC interface.
2Reliability
If bidirectional V2X communication is implemented, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent merges multiple communication technologies (NFC and V2X) into a unified fueling system. NFC provides close-range authentication and initial connection, while V2X handles real-time bidirectional data exchange for safety monitoring. This combination leverages the strengths of each technology to achieve high reliability without requiring a completely new communication infrastructure.
Solution Approach 2:
The V2X communication system is designed with multi-functionality to handle various communication needs: safety-critical data exchange, diagnostic information transmission, fueling process control, and emergency stop signaling. This universal approach consolidates multiple communication functions into a single standardized interface, reducing overall system complexity despite the enhanced capabilities.
3Reliability
If comprehensive safety monitoring data is transmitted bidirectionally, then safety integrity level increases, but data transmission time and processing complexity increase
Solution Approach 1:
The V2X communication system establishes continuous bidirectional data streams for critical safety parameters during the fueling process. Pressure, temperature, and flow rate data are transmitted continuously rather than periodically, ensuring real-time safety monitoring and immediate detection of abnormal conditions, thereby maintaining high safety integrity levels without significant time delays.
Solution Approach 2:
The system dynamically adjusts communication parameters based on fueling conditions. During normal operation, data transmission rates are optimized for efficiency, while during critical events or abnormal conditions, the system increases transmission frequency and detail for safety-critical parameters, balancing data completeness with transmission time constraints.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances safety ratings, increases fueling speed, and provides improved security and privacy, enabling efficient and safe hydrogen fueling and electric charging operations.
Implementation Method 1
disposing a nozzle of the station within a specified distance of a receptacle on the vehicle to establish an NFC link between a first near field communication (NFC) hardware and a second NFC hardware
Data Source
AI summary
Systems and methods for fueling (or charging) communication, for example between a hydrogen fueling station and a hydrogen powered vehicle (or an electric vehicle and charging station) may utilize near field communication as well as vehicle to infrastructure communication. Safety information, fueling or charging information, payment information, and other information may be transmitted, and the redundant nature of the communication permits fault recovery and improved process monitoring. In this manner, fueling and/or recharging is made safer, faster, and more efficient.