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Liquid Leak Tightness Standards for EVBattery Packs Recommended Practice

2022-03-28
WIP
J3277/1
This Recommended Practice proposes test practices to evaluate the Water Leak Tightness of Propulsion Battery Packs that emulates the equivalent results of IEC 60529 to an IPX7 level applying the Selected Equivalent Channel (EC) per SAE J3277 and provide guidelines for proper tooling design, validation, and leak test procedure. This practice is in consideration of the design limitation of some battery packs while utilizing applicable common air or tracer gas leak tightness technologies.
Standard

Megawatt Charging System for Electric Vehicles

2021-12-15
WIP
J3271
This document describes the megawatt-level DC charging system requirements for couplers/inlets, cables, cooling, communication and interoperability. The intended application is for commercial vehicles with larger battery packs requiring higher charging rates for moderate dwell time. A simplified analog safety signaling approach is used for connection-detection to guarantee de-energized state for unmated couplers with superimposed high speed data for EVSE-EV charging control and other value added services.
Standard

Ambient Temperature Fixed Orifice Fueling

2016-11-21
WIP
J2601/4
SAE J#### 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 J#### 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.
Standard

Constant Speed Aerodynamic Procedure for Heavy Vehicles

2017-09-25
WIP
J3156
Develop and document an aerodynamic constant speed procedure for heavy vehicles that can accurately calculate the aerodynamic performance through the typical expected yaw angles during operation at highway speeds.
Standard

Techniques for measuring the properties of lithium and lithium-ion battery anode active materials.

2017-10-18
WIP
J3159
This SAE RP provides a set of test methods and practices for the characterization of the properties of lithium battery anode active materials. Lithium battery anode active materials can be grouped in one of the following categories: lithium intercalation materials (including graphite, Li4Ti5O12); lithium alloying materials (including Sn, Si compounds/composites); lithium deposition materials (lithium metal). For the purposes of this document, material properties will be examined for particulate anode active materials (graphite, Li4TiO5, Sn compounds, Si compounds) and for metallic films (lithium metal). It is not within the scope of this document to establish criteria for the test results, as this is usually established between the vendor and customer It is not within the scope of this document to examine the electrochemical properties of anode materials since these are influenced by electrode design.
Standard

Contamination definition for Fuel Tank Inerting Systems

2016-02-01
WIP
AIR6374
The scope of this document is to provide a guidance of the common contamination types and their concentrations in order to size FTIS components and characterize its performance on generic commercial aircraft.
Standard

Considerations for future more electric aircraft electric power systems

2011-05-06
WIP
AIR6198
This activity is focused on more electric and all electric type power systems for air vehicles. The scope of which includes source, distribution and user contributions to electrical power quality, failure modes, coordination, system reliabilty and robustness, impacts of being flight critical and the gaps which exist in present standards and guidance documents.
Standard

FZG Test Review

2017-02-28
WIP
AIR6919
Over the past several years the FZG A/8.3/90 test method has been used to evaluate current qualified aviation lubricants. The results of the effort have been summarized in this document as a historical reference to document the findings made from the committee.
Standard

Seals and Wipers for Mechanical and Electromechanical Actuators

2021-04-29
WIP
AIR7379
The purpose of this AIR is to provide a comprehensive description document that displays various examples of low pressure seals and wipers utilized within mechanical and electromechanical actuators. The document is intended as an overview for those specifying or designing actuators in order to compare existing solutions as reference for implementation.
Standard

Advanced methods for Wire Selection and Sizing for Aerospace applications

2019-05-30
WIP
AIR7497
This SAE Aerospace Information Report is intended to provide advanced methods for wire selecting and sizing in aerospace application as a continuation of AIR6540, Fundamentals in Wire Selection and Sizing for Aerospace Applications. Also, it will provide valuable information for the electrical design engineer to verify the proper wire selection and validate a set of system design requirements which includes meeting environmental and installation constraints.
Standard

Aerospace Electrical Power System Stability

2018-09-10
WIP
AIR8445
EPS stability is an essential property that defines EPS ability to provide secure operation under required range of operation scenario. Power system stability is defined as “the ability of an electric power system, for a given initial operating condition, to regain a state of operating equilibrium after being subjected to a physical disturbance, with most system variables bounded so that practically the entire system remains intact”. This is applicable for AC and DC systems and has to address steady state conditions, transient conditions as well as high power loads connection / disconnection on the network.
Standard

LIQUID HYDROGEN STORAGE FOR AVIATION

2019-11-20
WIP
AS6679
This document defines the technical guidelines for the safe integration, operation and maintenance, and for certification of Liquid Hydrogen Storage Systems (LHSS) in aircraft. This document also defines guidelines for safe refuelling operation of hydrogen for aircraft. This document does not address airport infrastructure, nor how the refuelling means is specified, except the provisions required for the safety of the aircraft refuelling operation.
Standard

Performance based packaging standard for lithium batteries as cargo on aircraft

2016-03-18
WIP
AS6413
This standard is intended to demonstrate and document the control of the potential hazards from lithium cells or batteries (UN 3090 and 3480) when transported as cargo on aircraft. [still need to identify if we are addressing global (external fire) or local (battery internal failures)] This standard addresses the need to control the hazards which might arise from a failure from an individual cell by containing the hazards within the package. This specific hazards addressed within this standard are: • Uncontrolled fire • Rapid overpressure pulse within compartment
Standard

Performance based package standard for lithium batteries as cargo on aircraft - Oven Test

2020-09-01
WIP
AS6413/1
This category specification provides a minimum performance standard that may be used for mitigation means, in addition to the foundation specification (AS6413), to provide external fire thermal threat capability which supports the safe shipment of lithium batteries as cargo on aircraft. This slash sheet provides information and testing to assist or augment the performance of the packaging used for shipping of lithium batteries. If protective equipment and measures are used, the performance of the battery package under the challenge of external heat and fire may be improved and enhanced.  
Standard

Performance based package standard for lithium batteries as cargo on aircraft - Direct Flame Test

2020-09-01
WIP
AS6413/2
This category specification provides a minimum performance standard that may be used for mitigation means, in addition to the foundation specification (AS6413), to provide external fire thermal threat capability which supports the safe shipment of lithium batteries as cargo on aircraft. This slash sheet provides information and testing to assist or augment the performance of the packaging used for shipping of lithium batteries. If protective equipment and measures are used, the performance of the battery package under the challenge of external heat and fire may be improved and enhanced.  
Standard

Adapter, Closed-Circuit Fuel Servicing

2021-03-11
WIP
AS6848
Aircraft-mounted Closed Circuit Refueling receiver adapter – Definition of standard interface dimensions for adapter which interfaces with MIL-PRF-52747F Nozzle.
Standard

Gaseous Hydrogen Storage for General Aviation

2021-07-06
WIP
AS7373
This document defines the technical guidelines for the safe integration, operation and maintenance, and for certification of Gaseous Hydrogen Storage Systems (GHSS) in general aviation. This document also defines guidelines for safe refuelling operation of gaseous hydrogen for aircraft. This document does not address airport infrastructure, nor how the refuelling means is specified, except the provisions required for the safety of the aircraft refuelling operation.
Standard

Aircraft High Voltage DC Power Quality Standard

2019-06-05
WIP
AS7499
The need for developing this standard is driven by the quickly evolving field of electrified propulsion for aircraft. Industry is moving forward in development of a broad range of high voltage primary power systems. There is an immediate need to standardize power quality requirements for design, analysis, verification, and testing for these types of systems.
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