SAE J2799-2024 氢动力地面车辆与空间站通信硬件和软件

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For more information on this standard, visit

https://www.sae.org/standards/content/J2799_202406

SURFACE VEHICLE

STANDARD

J2799™

JUN2024

Issued 2010-03

Revised 2024-06

Superseding J2799 DEC2019

Hydrogen Surface Vehicle to Station

Communications Hardware and Software

RATIONALE

This document has a new communication protocol version number 2.00 for high flow fueling protocols, such as SAE

J2601/5. This includes a larger TV range and structured formatting rules in order to send additional information in the OD

field. The geometry requirements for the IrDA hardware are adjusted for larger receptacle/nozzles.

TABLE OF CONTENTS

1. SCOPE ....................................................................................................................................................... 3

1.1 Gaseous Hydrogen Fueling System Background ...................................................................................... 3

2. REFERENCES ........................................................................................................................................... 3

2.1 Applicable Documents ............................................................................................................................... 3

2.1.1 SAE Publications ........................................................................................................................................ 3

2.1.2 IrDA Publications ........................................................................................................................................ 4

2.1.3 ANSI Publications ...................................................................................................................................... 4

2.1.4 IEC Publications ......................................................................................................................................... 4

2.1.5 ISO Publications ......................................................................................................................................... 4

2.2 Related Publications .................................................................................................................................. 4

2.2.1 SAE Publications ........................................................................................................................................ 4

2.2.2 WE-NET Publications ................................................................................................................................. 5

3. DEFINITIONS ............................................................................................................................................ 5

4. ABBREVIATIONS AND SYMBOLS ........................................................................................................... 7

4.1 Symbols ..................................................................................................................................................... 7

5. COMPRESSED HYDROGEN SURFACE VEHICLE TO STATION COMMUNICATIONS DEVICE ......... 8

5.1 Non-ASIL/SIL Communications Assumptions ........................................................................................... 8

5.2 Physical and Functional Requirements ...................................................................................................... 8

5.2.1 Physical Layer Protocol Specification ........................................................................................................ 8

5.2.2 Data Link Layer Protocol Specification ...................................................................................................... 8

5.2.3 Presentation Layer Protocol Specification ............................................................................................... 10

5.3 Communications Hardware for Gaseous Fueling .................................................................................... 11

5.3.1 Vehicle Transmitter Requirements ........................................................................................................... 11

5.3.2 Nozzle Receiver Requirements ............................................................................................................... 12

5.4 Communications Definition (Version 01.10)............................................................................................. 14

5.4.1 Gaseous Fueling Communications .......................................................................................................... 14

5.5 Communications Definition (Version 02.00)............................................................................................. 17

SAE INTERNATIONAL J2799™ JUN2024 Page 2 of 39

5.5.1 Gaseous Fueling Communications .......................................................................................................... 17

5.6 Verification Tests ...................................................................................................................................... 20

5.6.1 Verification Test, Verification of a Gaseous Hydrogen Communications System ................................... 20

5.7 Verification of a Gaseous Hydrogen Communications System in a Dispenser ....................................... 22

5.7.1 Examples of Verification Testing on Dispenser Side for CSA HGV 4.3 .................................................. 22

6. NOTES ..................................................................................................................................................... 22

6.1 Revision Indicator ..................................................................................................................................... 22

6.2 Patents ..................................................................................................................................................... 22

APPENDIX A FAST FRAME CHECK SEQUENCE (FCS) ............................................................................................. 23

APPENDIX B IRDA FRAME EXAMPLES ...................................................................................................................... 33

APPENDIX C HISTORICAL VN 01.00 DOCUMENTATION........................................................................................... 35

APPENDIX D OPTIONAL DATA HEADERS .................................................................................................................. 38

APPENDIX E FUTURE REVISIONS OF SAE J2799 ..................................................................................................... 39

Figure 1 Overall gaseous hydrogen fueling system ................................................................................................. 3

Figure 2 Connector with infrared communications link ............................................................................................ 6

Figure 3 IR frame ..................................................................................................................................................... 8

Figure 4 Receiver transparency state machine ...................................................................................................... 10

Figure 5 Vehicle transmitter (front view) ................................................................................................................ 13

Figure 6 Nozzle receiver (front view) ..................................................................................................................... 13

Figure 7 Vehicle receptacle (side view) ................................................................................................................. 14

Figure 8 Verification test setup ............................................................................................................................... 20

Table 1 Data link framing ........................................................................................................................................ 9

Table 2 Delimiter permutations and interpretations .............................................................................................. 10

Table 3 Value check permutations and interpretations ......................................................................................... 11

Table 4 Definition of minimum and maximum infrared emitter and receiver distances

for different connector sizes ..................................................................................................................... 12

Table 5 Examples of OD Data Blocks, OD Header, and OD Data ....................................................................... 19

Table 6 Test scenarios .......................................................................................................................................... 21

Table 7 Bit error ratio ............................................................................................................................................ 22

SAE INTERNATIONAL J2799™ JUN2024 Page 3 of 39

1. SCOPE

This standard specifies the communications hardware and software requirements for fueling hydrogen surface vehicles

(HSV), such as fuel cell vehicles, but may also be used where appropriate with heavy-duty vehicles (e.g., buses) and

industrial trucks (e.g., forklifts) with compressed hydrogen storage. It contains a description of the communications hardware

and communications protocol that may be used to refuel the HSV. The intent of this standard is to enable harmonized

development and implementation of the hydrogen fueling interfaces.

This standard is intended to be used in conjunction with the hydrogen fueling protocols in SAE J2601 and nozzles and

receptacles conforming with SAE J2600.

1.1 Gaseous Hydrogen Fueling System Background

The overall hydrogen fueling system consists of a dispenser, HSV, and hydrogen fueling coupling. The nozzle and

receptacle mechanically couples the hydrogen fueling system (dispenser) and the HSV and allows hydrogen gas to flow

between them. The interface between the two is defined as the fueling interface. The data is transmitted from the IR

transmitter on the HSV to the IR (infrared) receiver on the dispenser. See Figure 1.

Figure 1 - Overall gaseous hydrogen fueling system

2. REFERENCES

2.1 Applicable Documents

The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the

latest issue of SAE publications shall apply.

2.1.1 SAE Publications

Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA

and Canada) or +1 724-776-4970 (outside USA), www.sae.org.

SAE J2579 Standard for Fuel Systems in Fuel Cell and Other Hydrogen Vehicles

SAE J2600 Compressed Hydrogen Surface Vehicle Fueling Connection Devices

SAE J2601 Fueling Protocols for Light Duty Gaseous Hydrogen Surface Vehicles

SAE J2601-5 High-Flow Prescriptive Fueling Protocols for Gaseous Hydrogen Powered Medium and Heavy-Duty

Vehicles

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标签： #氢动力

摘要：

本文档详细介绍SAE J2799-2024标准，该标准规定了氢动力地面车辆与（氢能）空间站（或加氢站）之间进行数据交换与通信的硬件接口和软件协议要求。该标准旨在确保车辆与加氢设施之间的通信安全、可靠与互操作性，涵盖连接器物理层、通信协议、数据格式及安全校验机制等关键技术规范。适用于氢燃料电池车辆制造商、加氢站设备供应商以及相关系统集成商，为氢能交通基础设施的智能化与标准化建设提供核心指导。

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