Hydrogen Fueling Protocol Negotiation for Closed-Loop Safety Control
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Solution Overview
Problem
Conventional hydrogen fueling systems for hydrogen fueled mobility rely on unidirectional communication, leading to inefficiencies, vulnerabilities, and inadequate safety and reliability, which are not optimized for large-scale hydrogen fueling.
Innovation Solution
Implementing a bidirectional communication process between the vehicle and the dispenser to negotiate a common communication protocol, exchange parameters, and monitor fueling status, ensuring safety and efficiency through real-time data exchange and secure channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If unidirectional communication is used for hydrogen fueling, then device complexity is reduced, but reliability and safety are compromised
Solution Approach 1:
The patent implements bidirectional communication between the vehicle and dispenser, allowing real-time feedback exchange. The vehicle can send fueling status, temperature, and pressure data to the dispenser, while the dispenser can send control commands and acknowledgments back to the vehicle, creating a closed-loop feedback system that enhances safety and reliability
Solution Approach 2:
The communication system is designed to support multiple communication protocols and modes (wireless and wired), making it universally compatible with different vehicle and dispenser configurations. This multi-functional approach allows the system to adapt to various scenarios while maintaining consistent safety standards
2Adaptability or versatility
If unidirectional communication is used, then ease of operation is improved, but interoperability between different vehicles and dispensers is limited
Solution Approach 1:
The communication system dynamically selects the most appropriate protocol and mode based on the capabilities of the connected vehicle and dispenser. During the fueling process, the system can adaptively switch between different communication methods (wireless setup, wired data exchange) to optimize compatibility while maintaining operational simplicity
Solution Approach 2:
The system changes communication parameters such as protocol type, data format, and transmission mode based on the specific vehicle-dispenser pairing. This parameter adaptation allows maximum interoperability across different manufacturers and models while keeping the user experience consistent and simple
3Productivity
If conventional fueling control is used, then device complexity is minimized, but productivity and fueling efficiency are reduced
Solution Approach 1:
The control system continuously monitors fueling parameters (temperature, pressure, flow rate) and adjusts dispensing rates in real-time based on feedback from the vehicle's fuel cell stack conditions. This closed-loop control optimizes fueling speed while preventing overheating and ensuring safety, significantly improving fueling efficiency
Solution Approach 2:
The patent replaces conventional mechanical/manual fueling control with an automated electronic control system that uses digital communication and algorithm-based decision making. This substitution enables precise, real-time adjustments to fueling parameters, dramatically improving productivity compared to manual or simple mechanical systems
Data Source
AI summary
Disclosed are a two-way hydrogen fueling communication process and a device using same, which can overcome the limitations and vulnerabilities of one-way communication and improve the safety, efficiency, and reliability of hydrogen fueling. The two-way hydrogen fueling communication process comprises the steps of: transmitting, to a dispenser, a request message containing a protocol list of communication protocols to be used for a fueling session of hydrogen fueling; and receiving, from the dispenser, a response message containing information about a common protocol selected by the dispenser, most preferred by a vehicle, and mutually supported by both the vehicle and the dispenser, wherein on the basis of the common protocol, the vehicle and the dispenser reach an agreement on the communication protocol to be used for fueling communication of hydrogen fueling.