Society of Automotive Engineers
Interface Working Group 

Mission:  Develop standards to coordinate between fuel suppliers and vehicle manufacturers to ensure safe, efficient and customer friendly delivery of fuel to fuel cell vehicles.
 


Identification SAE J 2600
    Compressed Hydrogen Vehicle Fueling Connection Devices
    (defines geometries of receptacles for different pressure levels)

 

Scope

SAE J2600 applies to the design and testing of Compressed Hydrogen Surface Vehicle (CHSV) fueling connectors, nozzles, and receptacles. Connectors, nozzles, and receptacles must meet all SAE J2600 requirements and pass all SAE J2600 testing to be considered as SAE J2600 compliant. This document applies to devices which have Pressure Classes of H11, H25, H35, H50 or H70. 

 

Status

Published in 2002 and 2012.

 

The 3rd edition was published in October 2015.

 

Available at www.sae.org

Committee
Information
Chairman Tim McQuire
Secretariat SAE
Secretary  

Identification SAE J2601
    Fueling Protocols for Light Duty Gaseous
    Hydrogen Surface Vehicles

 

Scope SAE J2601 establishes the protocol and process limits for hydrogen fueling of light duty vehicles. These process limits (including the fuel delivery temperature, the maximum fuel flow rate, the rate of pressure increase and the ending pressure) are affected by factors such as ambient temperature, fuel delivery temperature and initial pressure in the vehicle’s compressed hydrogen storage system. SAE J2601 establishes standard fueling protocols based on either a look-up table approach utilizing a fixed pressure ramp rate, or a formula based approach utilizing a dynamic pressure ramp rate continuously calculated throughout the fill. Both protocols allow for fueling with communications or without communications. The table-based protocol provides a fixed end-of-fill pressure target, whereas the formula-based protocol calculates the end-of-fill pressure target continuously.


Status

Published as a Technical Information Report (TIR) in March 2010. Updated based on improved fuel simulation models and testing at hydrogen stations, and re-published as a standard in July 2014.  Revision A published in Deccember 2016.

 

Available from www.sae.org.


Adopted into Japanese law for all hydrogen stations.


Committee
Information
Chairman Jesse Schneider
Secretariat SAE
SAE: Staff Support
           Administration
Caroline Michaels
Pat Ebejer

Identification

SAE TIR J2601/2
    Fueling Protocols for Heavy Duty Gaseous Hydrogen Surface Vehicles (buses)

 

Scope The purpose of this document is to provide performance requirements for hydrogen dispensing systems used for fueling 35 MPa heavy duty hydrogen transit buses and vehicles (other pressures are optional). This document establishes the boundary conditions for safe heavy duty hydrogen surface vehicle fueling, such as safety limits and performance requirements for gaseous hydrogen fuel dispensers used to fuel hydrogen transit buses. For fueling light-duty vehicles SAE J2601 should be used. SAE J2601-2 is a performance based protocol document that also provides guidance to fueling system builders, manufacturers of gaseous hydrogen powered heavy duty transit buses, and operators of the hydrogen powered vehicle fleet(s). This fueling protocol is suitable for heavy duty vehicles with a combined vehicle CHSS capacity larger than 10 kilograms aiming to support all practical capacities of transit buses. It is non-prescriptive in how to achieve a full fill or 100% state of charge (SOC) in the vehicle tank storage system. This document is an independent document from SAE J2601 “Fueling Protocols for Light Duty Gaseous Hydrogen Surface Vehicles” and should be used separately. The fueling limits shown in this document are harmonized with the fueling assumptions used for on-board fuel systems, as provided by gaseous hydrogen transit bus manufacturers.
Status

Published September 2014. Available from www.sae.org

 

Committee
Information
Chairman Nico Bouwkamp
Secretariat SAE
SAE: Staff Support
           Administration
Pat Ebejer

Identification

SAE TIR J2601/3
    Fueling Protocols for Gaseous Hydrogen Powered Industrial Trucks (forklifts)

 

Scope This document establishes safety limits and performance requirements for gaseous hydrogen fuel dispensers used to fuel Hydrogen Powered Industrial Trucks (HPITs). It also describes several example fueling methods for gaseous hydrogen dispensers serving HPIT vehicles. SAE J2601-3 offers performance based fueling methods and provides guidance to fueling system builders as well as suppliers of hydrogen powered industrial trucks and operators of the hydrogen powered vehicle fleet(s). This fueling protocol for HPITs can support a wide range of hydrogen fuel cell hybrid electric vehicles including fork lifts, tractors, pallet jacks, on and off road utility, and specialty vehicles of all types. The mechanical connector geometry for H25 and H35 connectors are defined in SAE J2600 Compressed Hydrogen Surface Vehicle Refueling Connection Devices. Multiple fueling methods are described in this document and include: 1. Fill to Service Pressure with fixed area flow-limiting device 2. Fill to Target Pressure with fixed area flow-limiting device 3. Fill to Target Pressure with variable area flow-limiting device These three dispensing methods are detailed in Section 6 and include a schematic of control components for vehicle fueling. These methods allow for market differentiation with varied target fill pressures relative to 100% SOC. These methods are examples of how dispensers may function but are not intended to limit options for new dispenser technologies or fueling methods, provided they meet the performance based requirements. This document is suitable for all vehicle tank fueling systems above 18 L water volume and may be used for fueling of all types of Hydrogen Powered Industrial Trucks (HPIT’s), and Battery Replacement modules (BRM’s). The fueling limits shown in Section 5 are harmonized with the fueling assumptions used for on-board fuel systems that comply with CSA HPIT-1.

Status

Published June 2013. Available at WWW.sae.org

Committee
Information
Chairman Robert Boyd
Secretariat SAE
SAE: Staff Support
           Administration
Pat Ebejer

Identification

SAE J2601/4
    Ambient Temperature Fixed Orifice Fueling

 

Scope

SAE J2601/4 establishes the protocol and process limits for hydrogen fueling of light duty vehicles when the fuel delivery temperature is not pre-cooled, so called “ambient fueling” designated by Table 1 of SAE J2601-2014. These process limits (including the fuel delivery temperature, the maximum fuel flow rate, the rate of pressure increase and the ending pressure) are affected by factors such as ambient temperature, fuel delivery temperature and initial pressure in the vehicle’s compressed hydrogen storage system. SAE J2601/4 establishes standard fueling protocols based on a series of design cases representing fueling system engineering categories. These categories are intended to provide performance targets which allow decreasing fueling times relative to the most simple design case. Similar to the table and formula based approaches of SAE J2601-2014, this approach establishes a minimum performance criteria leaving open options for innovation to decrease fueling times



Status

Initiated November 2016.

Committee
Information
Chairman Aaron Harris
Secretariat SAE
Secretary  

Identification SAE J2719
   
Hydrogen Fuel Quality for Fuel Cell Vehicles
   

 

Scope

This Standard provides background information and a hydrogen fuel quality standard for commercial proton exchange membrane (PEM) fuel cell vehicles. This Report also provides background information on how this standard was developed by the Hydrogen Quality Task Force (HQTF) of the Interface Working Group (IWG) of the SAE Fuel Cell Standards Committee.

 

 

Status

Published November 2015. (Originally issued in 2005, and revised in 2008 and 2011.) Available at  www.sae.org.

This document is now the commodity standard for hydrogen vehicle fuel, and it has been adopted by the State of California in: California Business and Professions Code; Division 5, Weighing and Measuring Devices; Chapter 14, Petroleum and Hydrogen Fuels; Article 5.5, Standards for Hydrogen; Section 13446.

 

 

Committee
Information
Chairman Mike Steele
Secretariat SAE
Secretary  

Identification SAE J2719/1
   
Application Guideline for Use of Hydrogen Fuel Quality Specification
 

 

Scope

The purpose of this TIR is to provide guidance for minimizing test requirements based on SAE J2719 while still ensuring fuel quality at hydrogen fueling stations for PEM fuel cell vehicles (FCVs) and ICEVs (to the extent that has been determined). This document is intended to be used by both industry and regulators for routine (or periodic) monitoring of filling station performance.

It is understood that the measurement of fuel quality is to be made at the interface between the dispensing station and the vehicle. Depending on the source of the hydrogen, some impurities or contaminants will be more likely to occur at that interface than others. Process system faults were considered for each of the hydrogen sources listed in Section 4, and the likely resultant impurities were identified as being necessary for monitoring. Likely contamination sources were also considered and the associated impurities were also identified for monitoring This document attempts to identify those contaminants with the presumption that only those contaminants known to be prevalent in that production method will be investigated as part of routine or periodic monitoring of hydrogen quality. In many cases, contamination resulting from maintenance actions will be depleted so routine or periodic measurements are not likely to identify such incidents. For these cases, owners/operators may elect to perform special measurements after maintenance activities to ensure that such events do not occur. Ultimately, the frequency and magnitude of fuel quality testing should be established by the station owners/operators and regulatory authorities to meet their needs.

 

 

 

Status

Undergoing vote until April 14, 2016.  Anticipate publication by the third quarter of 2016.

 

 

Committee
Information
Chairman Mike Steele
Secretariat SAE
Secretary  

Identification SAE J2799
    70 MPa Compressed Hydrogen
    Surface Vehicle Refueling Connection Device
    and Optional Vehicle to Station Communication

 

Scope This technical information report specifies a guideline for the hardware requirements for fueling a Hydrogen Surface Vehicle (HSV) with compressed hydrogen storage at a Nominal Working Pressure of 70MPa. It contains a description of the receptacle geometry and optional communication hardware and communications protocol to refuel the HSV. The intent of this document is to enable harmonized development and implementation of the hydrogen fueling interfaces. It is intended to be utilized for the hydrogen vehicle field evaluation until enough information is collected to enable standardardization. The receptable portion of this TIR is to be reevaluated utilizing international field data in approximately 2 years and subsequently superseded by J2600 in the 2009 timeframe. At that time, input would be gathered from international locations through the representation in the SAE Fuel Cell Committee in order to confirm the final decision regarding the direction of the receptacle and communications standard. The communications portion of the TIR is also to be reevaluated utilizing international field data and subsequently superseded by J2601. It is anticipated that the communications protocol and hardware could be standardized before the above mentioned timeframe. It is not the intent of this document to imply a position regarding the commercial fueling protocol, communications, or non-communication strategy, but simply serves as a reference for the receptacle hardware and IRDA communications if this strategy is selected. In addition, it is not intended to be referenced by other Standard and/or Code organizations.

Status Published as a TIR in May 2007. Updated and published as a standard in April 2014.  Available at www.sae.org