Bidirectional Hydrogen Fueling Parameter Exchange For Safer Compatibility

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Solution Overview

Problem

Conventional hydrogen fueling systems for hydrogen fueled mobility lack efficiency, reliability, and safety due to unidirectional communication limitations, leading to inefficient and slow fueling processes.

Innovation Solution

Implementing a bidirectional communication process for hydrogen fueling that allows for parameter exchange between a mobility and a dispenser, enabling negotiation of communication protocols and fueling methods to enhance interoperability and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If unidirectional communication is used for hydrogen fueling control, then device complexity is reduced, but reliability and safety deteriorate due to inability to exchange parameters bidirectionally

Engineering Contradiction:
Improvefueling safetyVSAvoidcommunication system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements bidirectional communication between the mobility controller and dispenser controller, enabling the mobility to transmit parameter exchange requests and receive responses. This feedback mechanism allows the system to verify compatibility and adjust fueling parameters in real-time, significantly improving fueling safety and reliability compared to unidirectional communication.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The communication controller is designed to support multiple communication protocols (IrDA, WiFi, Bluetooth, cellular, Ethernet) and can adaptively select the appropriate protocol based on the dispenser's capabilities. This multi-functionality ensures reliable communication across different device configurations without requiring complex dedicated hardware for each protocol.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If conventional unidirectional communication protocol is used, then compatibility is improved with existing systems, but efficiency and speed deteriorate

Engineering Contradiction:
Improvefueling efficiencyVSAvoidprotocol compatibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The communication controller dynamically negotiates and selects the optimal communication protocol based on the dispenser's supported protocols. This dynamic adaptation allows the system to achieve high-speed data exchange when possible while maintaining backward compatibility with legacy systems, thereby improving fueling efficiency without sacrificing versatility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes communication parameters such as data transmission rate, protocol type, and communication mode based on the negotiated capabilities of the dispenser. This parameter adaptation enables the system to optimize transmission speed for modern high-efficiency dispensers while maintaining compatibility with older equipment through parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If bidirectional communication is implemented, then safety and efficiency are improved, but device complexity increases

Engineering Contradiction:
Improvefueling reliabilityVSAvoidcommunication controller complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The communication controller serves as an intermediary layer that manages the complexity of bidirectional communication. It handles protocol negotiation, parameter exchange, and data transmission coordination between the mobility and dispenser, isolating the complexity from the core fueling control systems and making the overall system more manageable despite the enhanced communication capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Loss of information

If unidirectional communication is used, then ease of operation is improved, but loss of information occurs due to inability to exchange parameter data

Engineering Contradiction:
Improveparameter data lossVSAvoidcommunication operation simplicity
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The bidirectional communication enables the mobility to send parameter exchange requests and receive detailed responses from the dispenser, including supported protocols and fueling parameters. This feedback loop prevents information loss by ensuring both parties have complete knowledge of each other's capabilities before initiating fueling operations.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4597990A1Method for parameter exchange in communication for hydrogen fueling, and device using same
Publication Date: 2025.08.06 HYUNDAI MOTOR CO LTD
  • EP4597990A1 patent drawingFigure 1
  • EP4597990A1 patent drawingFigure 2
  • EP4597990A1 patent drawingFigure 3

AI summary

A method according to an embodiment of the present disclosure comprises the steps of: transmitting, to a communication entity related to a dispenser, first parameters including one or more of at least one first hydrogen fueling method compatibility supported by a mobility or at least one first physical property; and receiving, from the communication entity related to the dispenser, a response message which includes second parameters including one or more of at least one second hydrogen fueling method compatibility supported by the dispenser, at least one second physical property, or a fueling target.