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Viewing 91 to 120 of 21764
2015-06-01
Journal Article
2015-01-9042
Timo van Overbrueggen, Michael Klaas, Björn Bahl, Wolfgang Schroeder
Abstract New combustion processes require an understanding of the highly three-dimensional flow field to effectively decrease fuel consumption and pollutant emission. Due to the complex spatial character of the flow the knowledge of the development of the flow in an extended volume is necessary. Previous investigations were able to visualize the discrete three-dimensional flow field through multi-plane stereoscopic PIV. In this study, cycle resolved tomographic particle-image velocimetry measurement have been performed to obtain a fully resolved representation of the three-dimensional flow structures at each instant. The analysis is based on the measurements at 80°, 160°, and 240° after top dead center(atdc) such that the velocity distributions at the intake, the end of the intake, and the compression stroke at an engine speed of 1,500 rpm are discussed in detail.
2015-05-29
Article
Taiwan’s automotive electronics industry is seeing steady growth as companies focus on selling to OEMs and the growing market in mainland China.
2015-05-29
Standard
AS50881F
This specification covers all aspects in electrical wire interconnection systems (EWIS) from the selection through installation of wiring and wiring devices and optical cabling and termination devices used in aerospace vehicles. Aerospace vehicles include manned and unmanned airplanes, helicopters, lighter-than-air vehicles, missiles and external pods.
2015-05-27
Article
Lewis Hamilton, the reigning world champion Formula One racer, dominated the Monaco Grand Prix on May 24, performing flawlessly until a lapse in data transmission and its interpretation by the Mercedes AMG Petronas technical team cost him the victory.
2015-05-26
Article
Connected vehicles bring many of the benefits gained with Internet access, but they also bring security issues including the threat of cyber attacks. That’s forcing design teams throughout the automotive supply chain to focus on a broad range of security technologies that create a holistic defense strategy. Defense in depth is the watchword.
2015-05-26
Article
Molex Inc. has introduced the Super Sabre Power Connector System for all high-current applications where flexible wire-to-wire and wire-to-board configurations are required.
2015-05-26
Article
Sensors gather information about the vehicle, its performance, and the surrounding environment. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at the sensors and microprocessors on the 2016 Ford GT. 
2015-05-26
Standard
J1647_201505
This SAE Recommended Practice provides test methods and requirements to evaluate the suitability of plastic optical materials for possible use in discharge forward lighting (DFL) devices in motor vehicles. These materials are typically used for lenses and reflectors. Separate testing is required for each combination of material, industrial coating, DFL light source, and device focal length. The tests are intended to determine physical and optical characteristics of the materials and coatings. Performance expectations of finished assemblies, including plastic components, are to be based on tests for lighting devices, as specified in SAE Standards and Recommended Practices for motor vehicle lighting equipment. Optical components exposed to weathering should also be subject to SAE J576.
2015-05-26
WIP Standard
J2735
This SAE Standard specifies a message set, and its data frames and data elements specifically for use by applications intended to utilize the 5.9 GHz Dedicated Short Range Communications for Wireless Access in Vehicular Environments (DSRC/WAVE, referenced in this document simply as “DSRC”), communications systems. Although the scope of this Standard is focused on DSRC, this message set, and its data frames and data elements have been designed, to the extent possible, to also be of potential use for applications that may be deployed in conjunction with other wireless communications technologies. This Standard therefore specifies the definitive message structure and provides sufficient background information to allow readers to properly interpret the message definitions from the point of view of an application developer implementing the messages according to the DSRC Standards.
2015-05-20
WIP Standard
AIR6894
This document describes laser wire stripping technologies and recommendations to strip electrical single conductor and shielded cable intended for aerospace applications. These recommendations concern: - Laser stripping process safety (for the wire or cable) - Laser stripping quality - Tool qualification - Tool inspection - User health and safety
2015-05-20
Book
This is the electronic format of the Journal.
2015-05-19
Article
Lockheed Martin is currently under contract to build eight GPS III satellites at its GPS III Processing Facility near Denver, a factory specifically designed to streamline satellite production.
2015-05-19
WIP Standard
ARP6063
This SAE Aerospace Recommended Practice (ARP) provides guidance for the verification and certification of a “commercial” fixed wing aircraft fuel tank inerting system (FTIS) and will provide technical references and data regarding ground and flight testing of an FTIS. The intent of this ARP is to address issues associated with the verification requirements based on current regulatory guidance per AC25.981-2C
2015-05-19
Standard
J3072_201505
This SAE Standard J3072 establishes interconnection requirements for a utility-interactive inverter system which is integrated into a plug-in electric vehicle (PEV) and connects in parallel with an electric power system (EPS) by way of conductively-coupled, electric vehicle supply equipment (EVSE). This standard also defines the communication between the PEV and the EVSE required for the PEV onboard inverter to be configured and authorized by the EVSE for discharging at a site. The requirements herein are intended to be used in conjunction with IEEE 1547 Standard for Interconnecting Distributed Resources with Electric Power Systems and IEEE 1547.1 Standard for Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems.
2015-05-15
Article
A tire pressure monitoring chipset can help fleet managers improve fuel economy and tell when vehicles are overloaded while also simplifying setup times. The Freescale Semiconductor device is said to be the industry’s smallest sensor, yet it has a broad operating range of 100-1500 kPa, exceeding the levels normally required for heavy commercial trucks.
2015-05-15
Book
This is the electronic format of the Journal.
2015-05-14
Article
To charge an electric car, you typically plug it in to a power source. An alternative to plugging in is called inductive charging. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Audi's new Q7 e-tron plug-in hybrid with wireless charging technology.
2015-05-13
WIP Standard
J2847/2
This SAE Recommended Practice SAE J2847-2 establishes requirements and specifications for communication between Plug-in Electric Vehicle (PEV) and the DC Off-board charger. Where relevant, this document notes, but does not formally specify, interactions between the vehicle and vehicle operator. This document applies to the off-board DC charger for conductive charging, which supplies DC current to the Rechargable Energy Storage System (RESS) of the electric vehicle through a SAE J1772™ coupler. Communications will be on the SAE J1772 Pilot line for PLC communication. The details of PowerLine Communications (PLC) are found in SAE J2931/4. The specification supports DC energy transfer via Forward Power Flow (FPF) from source to vehicle.
2015-05-12
Standard
J1939DA_201505
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.
2015-05-11
Article
Many companies are planning for the eventual adoption of vehicle-to vehicle and vehicle-to-infrastructure communications, with Xerox targeting tolling and commercial vehicle monitoring.
2015-05-11
WIP Standard
J1939/13
SAE J1939-13 specifies the diagnostic connectors used for off-board connection to a vehicle’s SAE J1939 communication links. The defined diagnostic connectors support connection to the twisted shielded pair media (SAE J1939-11), the Reduced Physical Layer unshielded twisted pair (SAE J1939-15), the unshielded twisted pair of SAE J1939-14, as well as the twisted unshielded quad media (ISO 11783-2).
2015-05-11
WIP Standard
J2286
The interface document SAE J2286 revises the requirements for file formats as described in SAE J1924. This document describes Interface 1 (I/F 1) in SAE J2214, SAE J1708. This document does not imply the use of a specific hardware interface, but may be used with other hardware interfaces such as SAE J1939. The requirements of SAE J2286 supersede the requirements defined by SAE J1924.
2015-05-07
Article
Researchers from Tsinghua University propose a new type of EHPS system suitable for heavy-duty commercial vehicles, with the purpose of reducing the power demand of an electric motor while guaranteeing sufficient power assist. The motor is only activated on-demand, which also helps to improve fuel economy.
2015-05-07
Standard
AS83519C
This specification covers environment resistant, heat-shrinkable solder type shield terminations. They may be used on data-bus, RF and shielded cables in applications where the operating temperature does not exceed 150 °C.
2015-05-07
Standard
J2836/5_201505
This SAE Information Report J2836/5™ establishes the use cases for communications between Plug-In Electric Vehicles (PEV) and their customers. The use case scenarios define the information to be communicated related to customer convenience features for charge on/off control, charge power curtailment, customer preference settings, charging status, EVSE availability/access, and electricity usage. Also addresses customer information resulting from conflicts to customer charging preferences. This document only provides the use cases that define the communications requirements to enable customers to interact with the PEV and to optimize their experience with driving a Plug-In Electric Vehicle. Specifications such as protocols and physical transfer methods for communicating information are not within the scope of this document.
2015-05-07
Standard
J2980_201505
This SAE Recommended Practice presents a method and example results for determining the Automotive Safety Integrity Level (ASIL) for automotive electrical and electronic (E/E) systems. This activity is required by ISO 26262-3:2011 [1], and it is intended that the process and results herein are consistent with ISO 26262:2011 [1]. The technical focus of this document is on vehicle motion control systems. It is limited to passenger cars weighing up to 3.5 metric tons. Furthermore, the scope of this recommended practice is limited to collision-related hazards. ISO 26262:2011 [1] has a wider scope than SAE J2980, covering other functions and accidents (not just motion control or collisions as in SAE J2980).
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