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Technical Paper

Considerations for Requirements and Specifications of a Digital Thread in Aircraft Data Life Cycle Management

2024-03-05
2024-01-1946
The aircraft lifecycle involves thousands of transactions and an enormous amount of data being exchanged across the stakeholders in the aircraft ecosystem. This data pertains to various aircraft life cycle stages such as design, manufacturing, certification, operations, maintenance, and disposal of the aircraft. All participants in the aerospace ecosystem want to leverage the data to deliver insight and add value to their customers through existing and new services while protecting their own intellectual property. The exchange of data between stakeholders in the ecosystem is involved and growing exponentially. This necessitates the need for standards on data interoperability to support efficient maintenance, logistics, operations, and design improvements for both commercial and military aircraft ecosystems. A digital thread defines an approach and a system which connects the data flows and represents a holistic view of an asset data across its lifecycle.
Magazine

SAE Truck & Off-Highway Engineering: February 2024

2024-02-15
Hyliion shifts focus from propulsion to power generation Prime power and EV charging are two areas that can benefit from the Karno linear generator beginning later this year. Intensifying pursuit of autonomous trucks Daimler Truck and Torc have established a clear roadmap that brings SAE level 4 trucks to the U.S. market by 2027. Commercial-truck EV fleets slow to grow Even for the largest players, the underdeveloped charging ecosystem is hampering commercial-truck fleets' electrification efforts.
Magazine

Automotive Engineering: August 2023

2023-08-03
3D, no waiting! Two companies' latest techniques take additive manufacturing to the next level. Reducing the battery materials supply risk "Adjacent" strategies such as improving vehicle efficiency and advancing promising chemistries can mitigate the risks associated with today's favored battery materials. A formula for real-world experience Student engineers soak up the lessons from an army of auto-industry and racing volunteers at Formula SAE Michigan. Editorial It's about more than a connector Supplier Eye The New Wild West SAE to standardize Tesla's NACS charging connector Report: Suppliers need more info sooner on OEM EV plans Mazda again producing rotary engines Toyota to build new battery lab in Michigan New Lexus SUVs: GX for show, TX for dough? VW introduces seminal ID.Buzz in three-row layout Spotlight: 3D Printing/Additive Manufacturing Equipment & Software
Magazine

Automotive Engineering: May Digital 2023

2023-05-01
Finding solutions for Sustainable Mobility SAE created its SMS team to help industry rethink itself as part of the new industrial revolution and the EV transition within it. Debarbonizing the EV battery supply chain Altering manufacturing processes and using a much higher percentage of low emission energy can help the battery industry get greener rapidly, according to a new McKinsey & Co. report. Europe's dust buster The pending Euro 7 vehicle-emissions regulations include a significant new sustainability wrinkle: first-ever restrictions for PM emissions from brakes. E-fueling for the future The development of carbon-neutral e-fuels enjoyed a major boost from European regulators, but production cost and scale remain issues. Fuels to transition the global legacy fleet The EV bandwagon has obscured potential solutions for decarbon-izing the enormous global ICE legacy fleet.
Standard

CAN FD Data Link Layer

2023-04-25
WIP
J1939-22
The flexible data rate capability in CAN (commonly called CAN FD) is implemented as a transport layer in order to allow for functional safety, cybersecurity, extended transport capability, and backward compatibility with SAE J1939DA.
Magazine

SAE Truck & Off-Highway Engineering: April 2023

2023-04-13
Headliners from Las Vegas Big reveals abounded at the triennial CONEXPO trade show. Following are some of the most notable unveilings from the desert. Cat doubles down on diesel with new C13D platform Deere pursues electric construction machines and charging infrastructure JCB debuts clean-sheet hydrogen combustion engine Volvo CE unveils electric asphalt compactor, announces NA arrival of L350H loader Honda reveals next-gen Autonomous Work Vehicle Deere 3D-prints fuel valves for tractors HP's binder jetting technology and GKN's manufacturing expertise helped John Deere realize its first 3D-printed metal part for mass production. Returning to the SAE presidency for 2023 Setting a "prudently aggressive" mindset in advancing SAE's goals in the mobility ecosystem.
Technical Paper

Challenges with the Introduction of X-By-Wire Technologies to Passenger Vehicles and Light Trucks in regards to Functional Safety, Cybersecurity and Availability

2023-04-11
2023-01-0581
Classic vehicle production had limitations in bringing the driving commands to the actuators for vehicle motion (engine, steering and braking). Steering columns, hydraulic tubes or steel cables needed to be placed between the driver and actuator. Change began with the introduction of e-gas systems. Mechanical cables were replaced by thin, electric signal wires. The technical solutions and legal standardizations for addressing the steering and braking systems, were not defined at this time. Today, OEMs are starting E/E-Architecture transformations for manifold reasons and now have the chance to remove the long hydraulic tubes for braking and the solid metal columns used for steering. X-by-wire is the way forward and allows for higher Autonomous Driving (AD) levels for automated driving vehicles. This offers new opportunities to design the vehicle in-cabin space. This paper will start with the introduction of x-by-wire technologies.
Magazine

SAE Truck & Off-Highway Engineering: October 2022

2022-10-06
eAxles gain traction OEMs are developing and testing axles with integrated electric powertrains to electrify trucks of all sizes. Securing CAN networks in commercial vehicles A CAN transceiver with built-in security functions can avoid the complexity of end-to-end security solutions that are especially hard to implement on CVs. Electrification is the future for defense vehicles Despite infrastructure challenges, electrified and automated military vehicles will save fuel and lives, said Allison's VP of Defense Programs at SAE COMVEC 2022. Editorial Hiring talent to meet high-tech demands Allison's now open for hydrogen testing Electrification's impact on commercial-vehicle chassis design Harbinger prepares to enter commercial market with novel eAxle ZF, Freudenberg developing integrated 'Powerpack' fuel cell and e-drive Freightliner's medium-duty makeover for M2 and SD models Toyota's hydrogen fuel-cell powertrain provides an electrifying ride
Standard

Diagnostic Link Connector Security

2022-10-04
CURRENT
J3138_202210
This document describes a set of recommended actions to take to increase the likelihood of safe vehicle operation when a device (external test equipment, data collection device, etc.) whose normal operation has been compromised by a source external to the vehicle is connected to the vehicle’s diagnostic system. The term “diagnostic system” is intended to be a generic way to reference all the different ways that diagnostic commands might be injected into the system. The guidance in this document is intended to improve security without significantly impacting the ability for franchised dealer or independent aftermarket external test tools to perform legitimate diagnosis and maintenance functions. The goal is that intrusive services are only allowed to be performed when the vehicle is in a Safe State such that even if the intrusive service were to be initiated with adversarial intent the consequences of such a service would still be acceptable.
Magazine

SAE Truck & Off-Highway Engineering: August 2022

2022-08-04
Deere advances in-field autonomy While stereo cameras and computer vision guide Deere's "limited- release" 8R autonomous tractor, Bear Flag's lidar tech will augment future machines. Positioning to centimeter-level improves agriculture Precision-navigation approaches that emphasize backward compatibility help farms reap more value from autonomous operations. Funding, mandates fuel commercial-vehicle electrification Legislators provide the impetus to electrify trucks and buses, leading to several engineering challenges.
Magazine

Automotive Engineering: July/August 2022

2022-08-01
R1T Exposed! A comprehensive teardown of Rivian's pioneering electric pickup reveals praiseworthy build quality, innovative thinking…and some lapses in manufacturability. EVs drive NVH materials innovation Skateboard platforms, high-frequency motor noise push lower dB thresholds and new countermeasure solutions. Optimizing design for additive manufacturing Avoiding the pitfalls of 3D printing requires knowing the process limitations - and how to work around them. An expert at a leading AM specialist shares insights on getting it right. Real-time processors help drive the zonal E/E revolution With its new generation of software-compatible processors, NXP aims to accelerate systems consolidation and performance.
Magazine

Automotive Engineering: June 2022

2022-06-02
Supplier Eye Inflation ignites another supplier squeeze Toyota reinvesting in collaborative safety research SAE and NREL partner to strengthen EV-charging cybersecurity Expanding the 'bubble' of cabin acoustics 2022 Ford F-150 Lightning redefines the pickup paradigm GM's Hummer EV is like nothing else
Technical Paper

Medical Cargo Delivery using Blockchain Enabled Unmanned Aircraft Systems

2022-05-26
2022-26-0003
Significant growth of Unmanned Aerial Vehicles (UAV) has unlocked many services and applications opportunities in the healthcare sector. Aerial transportation of medical cargo delivery can be an effective and alternative way to ground-based transport systems in times of emergency. To improve the security and the trust of such aerial transportation systems, Blockchain can be used as a potential technology to manage, operate and monitor the entire process. In this paper, we present a blockchain network solution based on Ethereum for the transportation of medical cargo such as blood, medicines, vaccines, etc. The smart contract solution developed in solidity language was tested using the Truffle program. Ganache blockchain test network was employed to host the blockchain network and test the operation of the proposed blockchain model. The suitability of the model is validated in real-time using a UAV and all the flight data are captured and uploaded into the blockchain.
Standard

Processes for Application-Specific Qualification of Electrical, Electronic, and Electromechanical Parts and Sub-Assemblies for Use in Aerospace, Defense, and High Performance Systems

2022-05-19
WIP
ARP6379A
This document describes a process for use by ADHP integrators of EEE parts and sub-assemblies (items) that have been targeted for other applications. This document does not describe specific tests to be conducted, sample sizes to be used, nor results to be obtained; instead, it describes a process to define and accomplish application-specific qualification; that provides confidence to both the ADHP integrators, and the integrators’ customers, that the item will performs its function(s) reliably in the ADHP application.
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