Fuel Cell Control Module Layout for Scalable Slave Diagnostics

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Solution Overview

Problem

Existing control methods for fuel cell systems are limited in their ability to manage various types of systems effectively, particularly in redesigning control modules, leading to challenges in software and hardware balance and increased costs for after-sales service.

Innovation Solution

A distributed control module for fuel cell systems, comprising a master controller and multiple slave controllers, allows for decentralized management of hydrogen tanks and valves, enabling modular replacement and simplified diagnostics, while maintaining system scalability and redundancy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a centralized control module is used for fuel cell systems, then the system structure is simple, but the adaptability to various types of fuel cell systems is limited and redesign is required

Engineering Contradiction:
Improveadaptability to various fuel cell systemsVSAvoidcontrol module structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control module is divided into a master control unit and multiple slave control units. Each slave control unit can independently manage specific fuel cell stacks or subsystems, enabling the system to adapt to different configurations without redesigning the entire control module. The master control unit coordinates the slave units to maintain overall system integration.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a centralized control module is redesigned for different fuel cell systems, then adaptability improves, but after-sales service costs increase

Engineering Contradiction:
Improveadaptability to different fuel cell systemsVSAvoidafter-sales service cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By segmenting the control module into standardized master and slave units, the system can accommodate different fuel cell configurations through simple addition or removal of slave units rather than complete redesign. This modular approach reduces manufacturing complexity and after-sales service costs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The master control unit is designed with universal communication interfaces and control algorithms that can manage multiple types of slave control units. This multi-functionality allows a single master unit to adapt to different fuel cell system configurations without requiring system-specific redesign, thereby reducing service costs.

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

3Reliability

If distributed control with multiple slave controllers is implemented, then system scalability and fail-safety improve, but control device complexity increases

Engineering Contradiction:
Improvefail-safety and system scalabilityVSAvoidcontrol device structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system is segmented into independent master and slave control units, each capable of autonomous operation within its domain. This segmentation enables fail-safety because a failure in one slave unit does not propagate to other units, and improves scalability by allowing incremental addition of slave units.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Slave control units continuously communicate their status to the master control unit, which coordinates their operation and monitors system health. This feedback mechanism maintains system reliability while managing the complexity of multiple control units through centralized coordination.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12469865B2Apparatus for fuel cell system
Publication Date: 2025.11.11 HYUNDAI MOTOR CO LTD
  • US12469865B2 patent drawing
  • US12469865B2 patent drawing
  • US12469865B2 patent drawing

AI summary

Provided is an apparatus for a fuel cell system according to an embodiment, which is associated with a distributed control module for the fuel cell system, the apparatus including a master controller and at least one slave controller connected to the master controller.