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2017-09-23
Technical Paper
2017-01-2007
Fang Li, Lifang Wang, Yan Wu
With the rapid development of vehicle intelligent and networking technology, the IT security of automotive systems becomes an important area of research. In addition to the basic vehicle control, intelligent advanced driver assistance systems, infotainment systems will all exchange data with in-vehicle network. Unfortunately, current communication network protocols, including Controller Area Network (CAN), FlexRay, MOST, and LIN have no security services, such as authentication or encryption, etc. Therefore, the vehicle are unprotected against malicious attacks. Since CAN bus is actually the most widely used field bus for in-vehicle communications in current automobiles, the security aspects of CAN bus is focused on. Based on the analysis of the current research status of CAN bus network security, this paper summarizes the CAN bus potential security vulnerabilities and the attack means.
2017-09-19
Technical Paper
2017-01-2108
Denis Buzdalov, Alexey Khoroshilov
Different modelling techniques intended to deal with complexity of modern IMA systems are widely used now. Models can be used to help developers to lay out relevant information structurally. They can also be used to perform different formal analyses on machine-readable models like schedulability analysis, network load checks, WCET for software parts, FTA and FMEA and etc. For some kinds of analyses, special models are created on different stages of development. We suppose that reuse of models for different aspects and development stages is generally a good thing. In some cases it allows to reduce costs on development process; also it allows to make preservation of consistency between models more automatic. We are aware that using the same model for different stages or aspects can cause additional cost in the model maintenance. In this paper we are trying to make a step to further (including practical) research on this topic.
2017-09-19
Technical Paper
2017-01-2159
Federico Cappuzzo, Olivier Broca, Jeremy Leboi
To answer the ever-increasing complexity of aircraft, it becomes of foremost importance to better and earlier assess the interactions among their systems and sub-systems. The study presents the Virtual Integrated Aircraft (VIA) methodology, which allows achieving the integration of aircraft systems with virtual means, complementing and preceding physical integration, which is usually completed at the end of the validation and integration phase. LMS Imagine.Lab platform provides the means for applying this methodology. A simulation architecture, integrating models from different platforms, is built and simulations are run on High Performance Computers (HPC) to cover multiple scenarios and therefore validate the selected architecture and pre-design in the early system development phases. Equipment, systems and subsystems are essential for the performance, safety, reliability and comfort.
2017-07-19
WIP Standard
J1939DA_201707
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use. The J1939 Digital Annex, introduced in August 2013, offers key J1939 technical data in an Electronic Spreadsheet that can be easily searched, sorted, and adapted to other formats. J1939DA contains all of the SPNs (parameters), PGNs (messages), and other J1939 data previously published in the SAE J1939 top level document. J1939DA also contains all of the SLOTs, Manufacturer ID Codes, NAME Functions, and Preferred Addresses previously published in the SAE J1939 top level and the J1939-71 document. J1939DA contains the complete technical details for all of the SPNs and PGNs previously published in the SAE J1939-71 document. It also includes the supporting descriptions and figures previously published in the SAE J1939-71 document.
2017-07-18
WIP Standard
ARP6505
This AIR intends to better document and tabulate electrical load dynamics that influence power source capacity, power quality and stabiltiy.
2017-07-11
WIP Standard
AS4112A
This test plan is broken into two major sections for the production testing of remote terminals: Electrical and Protocol. This production test plan defines the test requirements for verifying that Remote Terminals meet the requirements of MIL-STD-1553B, 'Digital Time Division Command/Response Multiplex Data Bus.'
2017-07-11
WIP Standard
AS4117A
This test plan defines the requirements of data bus components which comply with the requirements of MIL-STD-1553B, Digital Time Division Command/Response Multiplex Data Bus.
2017-07-11
WIP Standard
AS4114A
This test plan consists of two major sections for the production testing of bus controllers: Electrical tests and Protocol tests. This production test plan defines the test requirements for determining that bus controllers meet the requirements of MIL-STD-1553B, 'Digital Time Division Command/Response Multiplex Data Bus.'
2017-07-11
WIP Standard
AS4116A
This Aerospace Standard (AS) defines the test requirements for determining that bus monitors meet the requirements of MIL-STD-1553B, Digital Time Division Command/Response Multiplex Data Bus.
2017-07-11
WIP Standard
AS4115A
This test plan consists of two major sections for testing of MIL-STD-1553B data bus systems: Bus Network and System Integration Tests. This test plan defines the test requirements for: a) verifying that the bus network, (that is, cabling, couplers, connectors and terminators) when in the final system design configuration, complies with the requirements of MIL-STD-1553B and b) ensuring that when the bus system (that is, bus network, remote terminals and bus controllers) is integrated, it meets the specific requirements of MIL-STD-1553B, and provides for reliable communications within its system environment.
2017-07-11
WIP Standard
AS4113A
This test plan is broken into three major sections for the testing of bus controllers: Electrical, Protocol and Noise tests. This validation test plan defines the test requirements for verifying that the design of bus controllers meets the requirements of MIL-STD-1553B, 'Digital Time Division Command/Response Multiplex Data Bus.'
CURRENT
2017-06-28
Standard
AS47641A
This document establishes techniques for validating that an Aircraft Station Interface (ASI) complies with the interface requirements delineated in MIL-STD-1760B Notice 3. For validation of aircraft designed to MIL-STD-1760A Notice 2 AS4764 Issued 1995-04 applies.
CURRENT
2017-06-28
Standard
AS47642B
This document establishes techniques for validating that an Aircraft Station Interface (ASI) complies with the interface requirements delineated in MIL-STD-1760C. For validation of aircraft designed to MIL-STD-1760A Notice 2 AS4764 Issued 1995-04 applies. For validation of aircraft designed to MIL-STD-1760B Notice 3 AS47641 Issued 1999-08 applies.
CURRENT
2017-06-27
Standard
AS4270A
This document establishes techniques for validating that a mission store complies with the interface requirements delineated in MIL-STD-1760.
CURRENT
2017-06-27
Standard
AS4764A
This document establishes techniques for validating that an aircraft station complies with the interface requirements delineated in MIL-STD-1760.
2017-06-26
Solution Notes
SN-0001
Automating a manufacturing process often comes with substantial investment or sustained operational costs of complex subsystems. But, by reducing complexity and using technologically mature components, it is possible to develop viable scaled and robust automated solutions. For the past several years, aerospace manufacturers have endeavored to automate manufacturing processes as much as possible for both production efficiencies and competitive advantage. Automating processes like drilling, fastening, sealing, painting, and composite material production have reaped a wide range of benefits; from improving quality and productivity to lowering worker ergonomic risks. The results have improved supply chains from small component manufacturers all the way up to airframe assemblers. That said, automation can be very expensive, and difficult to introduce when a product is anywhere beyond the beginning of its life cycle.
2017-06-19
WIP Standard
J2847/6
This SAE Recommended Practice SAE J2847-6 establishes requirements and specifications for communications messages between wirelessly charged electric vehicles and the wireless charger. Where relevant, this document notes, but does not formally specify, interactions between the vehicle and vehicle operator. This is the 1st version of this document and captures the initial objectives of the SAE task force. The intent of step 1 is to record as much information on “what we think works” and publish. The effort continues however, to step 2 that allows public review for additional comments and viewpoints, while the task force also continues additional testing and early implementation. Results of step 2 effort will then be incorporated into updates of this document and lead to a republished version. The next revision will address the harmonization between SAE J2847-6 and ISO/IEC 15118-7 to ensure interoperability.
2017-06-15
WIP Standard
J1939-17
This document defines a physical layer having a higher bandwidth capacity than the classic physical layers defined for SAE J1939-14 by using flexible data rates. CAN controllers are now available which support the Flexible Data Rate Frame Format as defined in ISO 11898-1:2015. These controllers and compatible high speed transceivers are required for use on SAE J1939-17 networks. This SAE Recommended Practice is intended for light- and heavy-duty vehicles on- or off-road as well as appropriate stationary applications which use vehicle derived components (e.g., generator sets). Vehicles of interest include but are not limited to: on- and off-highway trucks and their trailers; construction equipment; and agricultural equipment and implements.
CURRENT
2017-05-25
Standard
AS20708/131B
Scope is unavailable.
2017-05-23
WIP Standard
AS5680B
This interface standard applies to fuzes used in airborne weapons that use a 3-in fuze well. It defines: - Physical envelope of the fuze well at the interface with the fuze. - Load bearing surfaces of the fuze well. - Physical envelope of the fuze and its connector. - Mechanical features (e.g., clocking feature). - Connector type, size, location and orientation. - Retaining ring and its mechanical features (e.g., thread, tool interface). - Physical envelope of the retaining ring at the interface with the fuze. - Physical space available for installation tools. - Torque that the installation tool shall be capable of providing. This standard does not address: - Materials used or their properties. - Protective finish. - Physical environment of the weapon. - Explosive interface or features (e.g., insensitive munitions (IM) mitigation). - Charging tube. - Torque on the retaining ring or loads on the load bearing surfaces.
2017-05-22
WIP Standard
AIR6540
The scope of this report is to capture the fundamental principles of selecting a wire size for an aerospace application using the method prescribed in SAE AS50881 standard. Also, provided in this report are additional calculations to ensure the wire selection will adequately perform in a particular design function including meeting environment constraints. Some of the calculations in this report have been simplified to demonstrate the process for validating the wire size selections for a particular design application. More precise calculations should be investigated and evaluated to ensure proper assessment of each individual calculation in this report.
CURRENT
2017-05-22
Standard
AS20708/139B
SCOPE IS UNAVAILABLE.
CURRENT
2017-05-22
Standard
AS20708/500B
Scope is unavailable.
CURRENT
2017-05-18
Standard
AS20708/94C
This specification covers the detail requirements for 115 volt, 60 and 400 Hz, size 23 synchros (see 6.1).
2017-05-18
Book
Jean Broge
Aviation propulsion development continues to rely upon fossil fuels for the vast majority of commercial and military applications. Until these fuels are depleted or abandoned, burning them will continue to jeopardize air quality and provoke increased regulation. With those challenges in mind, research and development of more efficient and electric propulsion systems will expand. Fuel-cell technology is but one example that addresses such emission and resource challenges, and others, including negligible acoustic emissions and the potential to leverage current infrastructure models. For now, these technologies are consigned to smaller aircraft applications, but are expected to mature toward use in larger aircraft. Additionally, measures such as electric/conventional hybrid configurations will ultimately increase efficiencies and knowledge of electric systems while minimizing industrial costs.
CURRENT
2017-05-18
Standard
AS20708/81B
No Scope Available
CURRENT
2017-05-12
Standard
J1939/73_201705
SAE J1939-73 Diagnostics Application Layer defines the SAE J1939 messages to accomplish diagnostic services and identifies the diagnostic connector to be used for the vehicle service tool interface. Diagnostic messages (DMs) provide the utility needed when the vehicle is being repaired. Diagnostic messages are also used during vehicle operation by the networked electronic control modules to allow them to report diagnostic information and self-compensate as appropriate, based on information received. Diagnostic messages include services such as periodically broadcasting active diagnostic trouble codes, identifying operator diagnostic lamp status, reading or clearing diagnostic trouble codes, reading or writing control module memory, providing a security function, stopping/starting message broadcasts, reporting diagnostic readiness, monitoring engine parametric data, etc.
2017-05-10
WIP Standard
J1939-76
This document provides the technical requirements for implementing the SAE J1939 Functional Safety Communication Protocol in a manner determined suitable for meeting industry applicable functional safety standards.
2017-05-05
Magazine
Alternative fuels and challenges Automotive powertrain development: virtually-connected hardware co-simulation Functional Safety-progressing towards safer mobility Electric rockets and the future of satellite propulsion Achates powers toward production A potential ICE game-changer, the Achates OP engine is being tooled up for production at one OEM while a new 2.7-L triple for light-truck demonstrations enters the build phase. Engineering with simulation and data Companies are discovering new simulation techniques, especially optimization; the next step is to combine simulation with sensor data and predictive analytics to create even more robust off-highway equipment.
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