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Viewing 61 to 90 of 9841
2014-09-16
Technical Paper
2014-01-2123
Andre Hessling
Abstract Advanced technologies in LED's have the potential to reduce maintenance and improve aircraft safety. Aircrafts need adequate illumination for night time landing. New technology such as high-power LEDs allow for better suited light distributions, more whitish light compatible for mesopic lighting conditions and reduced glare in adverse weather conditions. LEDs and the associated electronics are more susceptible to harsh environmental conditions and this needs to be accounted for in the design of the equipment. Highly conductive metal core PCBs (MCPCB) allow for adequate cooling in a mirror telescopic optical arrangement when coupled with robust active cooling. Closed loop optical feedback of output flux ensures constant performance over the lifetime of the light unit and allows for indication of remaining useful life to the operator to plan maintenance activities. Parylene coating inhibits premature degradation of the LEDs induced by water vapor and corrosive gases.
2014-09-16
Technical Paper
2014-01-2110
David Gras, Christophe Pautrel, Amir Fanaei, Gregory Thepaut, Maxime Chabert, Fabien Laplace, Gonzalo Picun
Abstract In this paper we present a set of integrated circuits specifically designed for high temperature power applications such as isolated power transistor drivers and high efficiency power supplies. The XTR26010 is the key circuit for the isolated power gate drive application. The XTR26010 circuit has been designed with a high focus in offering a robust, reliable and efficient solution for driving a large variety of high-temperature, high-voltage, and high-efficiency power transistors (SiC, GaN, Si) existing in the market. The XTR40010 is used for isolated data communication between a microcontroller or a PWM controller and the power driver (XTR26010). The isolated power transistor driver features a dual turn-on channel, a turn-off channel and a Miller Clamp channel with more than 3A peak current drive strength for each channel. The dV/dt immunity between XTR26010 and XTR40010 exceeds 50kV/μs. To demonstrate the performance and reliability at system level, a half-bridge driver test-board has been developed for driving SiC MOSFETs.
2014-09-16
Technical Paper
2014-01-2161
Alireza R. Behbahani, Alex Von Moll, Robert Zeller, James Ordo
Abstract Modern propulsion system designers face challenges that require that aircraft and engine manufacturers improve performance as well as reduce the life-cycle cost (LCC). These improvements will require a more efficient, more reliable, and more advanced propulsion system. The concept of smart components is built around actively controlling the engine and the aircraft to operate optimally. Usage of smart components intelligently increases efficiency and system safety throughout the flight envelope, all while meeting environmental challenges. This approach requires an integration and optimization, both at the local level and the system level, to reduce cost. Interactions between the various subsystems must be understood through the use of modeling and simulation. This is accomplished by starting with individual subsystem models and combining them into a complete system model. Hierarchical, decentralized control reduces cost and risk by enabling integration and modularity. This process involves defining, developing, and validating against requirements for key integrated propulsion, power, and thermal management system capabilities.
2014-09-16
Technical Paper
2014-01-2171
Matthew R. Cerny, Keith Joerger
Abstract This paper identifies critical and relevant variable/adaptive cycle turbine engine and propulsion subsystem technologies for future next generation aviation systems. A comprehensive evaluation of key technology drivers associated with the development and demonstration of advanced Adaptive Power and Thermal Management System (APTMS) technologies applicable to next generation platforms is addressed. Specifically, the paper explores energy optimization through dynamic mission based simulations of an advanced hybrid air cycle / vapor cycle APTMS architecture combining multiple traditionally federated subsystem functions including auxiliary power, environmental control, emergency power, and engine start. The Integrated Power Turbomachine (IPTM) under development by GE Aviation (GEA) is a critical component of the advanced hybrid APTMS architecture, enabling a three-fold increase in design cooling capacity compared to current air dominance platforms, with a significant reduction in engine bleed extraction.
2014-09-16
Technical Paper
2014-01-2193
Matthew Dooley, NIcholas Lui, Robb Newman, Clarence Lui
Abstract Complex, high-powered electronics used on modern aircraft generate large amounts of heat, and the complexity and energy demands only grow with each new generation of electronics. Commensurate heats sink capable of absorbing this load are the crucial element in an aircraft's thermal management system, and so the capacities of heat sinks must evolve with this electronics growth. This paper presents an industry survey of conventional heat sinks in current use and then introduces and discusses potential advances in heat sink technologies. These technologies show significant promise to increase the capacity of thermal management systems on future aircraft and thereby unlock the full performance of next generation electronics.
2014-09-09
Book
With current LED performance nearing or surpassing that of most traditional light sources, LEDs are now addressing most lighting applications (indoors, outdoors, transportation vehicles and so on), with prices coming down rapidly over the past three to five years. Advances in materials will also broaden LED consumption through improved performance. The report looks at the competing light-source technologies for automotive applications, including Halogen, HID/ Xenon, Combined HID and LED, LED technology, Organic LED (OLED) and Laser technology. It also examines the design flexibility and power savings that LEDs give designers, as well as the differing optics technology and related strict regulations. The Advanced Automotive Lighting and Vision Systems Report - 2014 Edition addresses uses for lighting in vehicles, looking at both exterior and interior applications and the unique set of challenges presented by each. It also looks at how lighting technologies are increasingly being combined with vision systems to create complete modules.
2014-09-04
Article
Two major design trends, the push to provide more exotic human-machine interfaces and the march towards autonomous driving, are sparking interest in cameras not now used in vehicles. Time-of-flight cameras provide gesture recognition for HMIs and tell autonomous controllers whether drivers are watching the road with their hands on the wheel.
2014-09-04
Magazine
Putting lightweighting to the test Material laws and orientation information are coupled in a single finite element analysis to predict the performance of the hybrid composite beam under a dynamic three point bending load. Screens, cameras provide new look in cabs Video inputs are another option showing up on displays that increasingly offer touch control. Big performance in small packages By regulating light-duty engine variable speed fans based on heat rejection demands and ambient temperature, consistent power savings over the entire operating spectrum can be achieved.
2014-09-02
Magazine
2015 New Vehicle & Technology Preview Automotive Engineering editors take a look at some of the more intriguing new models, including GM's full-size SUVs, BMW's i8 plug-in-hybrid sports car, Acura's TLX sedan, and Ford's F-150 full-size pickup truck. Picturing the map for smoother rides Next-gen A/C As conventional vapor-compression cooling technology faces phase-out, what could take its place? The U.S. Department of Energy's ARPA-e has funded research to help answer this question.
2014-08-29
Article
The relationship between consumer electronics and automotive infotainment systems is intensifying as smart phone operating systems become a factor in development strategies.
2014-08-29
Article
Built-in voice recognition surpasses wind noise as the problem most frequently reported by new-vehicle owners, according to J.D. Power. The J.D. Power 2014 Multimedia Quality and Satisfaction Study released Aug. 28 notes that the number of new-vehicle owners complaining about voice recognition is larger than it was in last year's study, with 8.3 problems reported per 100 new vehicles in 2014; the figure was 7.6 in 2013.
2014-08-28
Article
Visteon Corp. claims its in-car wireless device charging system is an industry first in that it complies with both of the main standards: Power Matters Alliance (PMA)/Powermat and Wireless Power Consortium (WPC)/Qi. 
2014-08-28
Standard
J2867_201408
This SAE Recommended Practice is intended for use in testing and evaluating the performance of Light Duty automotive electric engine cooling fans. These Electric Cooling Fan (ECF) Assemblies are purchased by Light Duty Truck and Passenger Car OEM’s from suppliers. They are purchased as complete assemblies, consisting of the fan(s), motor(s), and shroud (see Figure 1); this Recommended Practice will only consider such complete assemblies. Some purchased assemblies using brush-type motors may also include control devices such as power resistors or pulse width modulation (PWM) electronics for speed control. In the case of brushless motor technology, the controller is an integral part of the motor where it also performs the commutation process electronically. The performance measurement would include fan output in terms of airflow and pressure, and fan input electric power in terms of voltage and current. This information could then be used to calculate the efficiency of the assembly, including aerodynamic efficiency of the fan and shroud and electrical efficiency of the motor.
2014-08-27
Article
With the recent publishing of four technical reports, SAE International now offers a series of recommended practices designed to enhance overall ambulance safety in several areas, including patient compartments and occupant restraint.
2014-08-26
WIP Standard
AIR4071B
This SAE Aerospace Information Report (AIR) describes two classes of lubricants which, when properly applied, can be used in oxygen systems and components.
2014-08-22
Magazine
SMACing the automotive industry: from concept to consumer Technology is making a more significant impact on today's auto industry. Perhaps one of the most notable examples is the development of connected technologies coupled with social, mobile, analytics, and cloud (SMAC) technologies. The 3i paradigm: India's story The concept of ideation, incubation, and implementation is enhancing the growth of the Indian automotive industry. Virtualization for automotive IVI systems As the demand for modern in-vehicle infotainment systems grows, automakers are increasingly looking toward virtualization as a solution to bridge the gap between consumer and automotive electronics. Command Center: Securing connected cars of the future automotive An architectural approach to minimize connectivity interfaces acts as a secure, intelligent gateway between the car and external devices/networks to better guard against malicious or sensitive data from being compromised.
2014-08-20
Article
Redstone Defense Systems selected Northrop Grumman Corp. to supply and integrate mission avionics equipment for a digital cockpit upgrade of the U.S. Army's UH-60L Black Hawk helicopters. Northrop Grumman will provide a scalable, fully integrated mission equipment package for the UH‑60L cockpit and will replace the older analog gauges with digital electronic instrument displays.
2014-08-20
WIP Standard
J826/2
This document describes the CAD model data available from SAE for the two-dimensional H-point template (HPM-1).
2014-08-12
Article
AC17 test reporting begins in 2015. Initially it "gifts" applicable CAFE A/C efficiency credits, but leads to mandatory use. Industry also looks to reduce A/C-induced EV range loss from solar loading using films, glass, pre-ventilation.
2014-08-12
Article
Johnson Controls has opened a new crash test facility at its automotive seating headquarters in Plymouth, MI. One of the highlights of the facility is a Seattle Safety ServoSled that allows the automotive supplier to offer what it claims is the most accurate, standardized safety testing of seats globally through collaboration with its other testing facilities located in Burscheid, Germany; Changchun and Shanghai, China; and Yokohama, Japan.
2014-08-12
Standard
J2031_201408
The specifications contained in this SAE Standard pertain to high tension ignition cable used in road vehicle engine ignition systems.
2014-08-11
Standard
J2032_201408
This SAE Standard specifies the general requirements and test methods for nonshielded high-tension ignition cable assemblies.
2014-08-06
Article
Imagine a future Land Rover equipped with Laser Wade Aid, a system that can measure water depth before a vehicle even gets its front tires wet, or a future Jag featuring a virtual windshield.
2014-08-06
WIP Standard
J2970
This standard provides the testing and functional requirements guidance necessary for a leak detection device that uses any non-A/C refrigerant tracer gas, such as helium or a nitrogen-hydrogen blend, to provide functional performance equivalent to a refrigerant electronic leak detector. It explains how a non- refrigerant leak detector’s calibration can be established to provide levels of detection equal to electronic leak detectors that meet SAE J2791 for R-134a and SAE J2913 for R-1234yf.
2014-08-05
Article
Kia has released details of the new improvements made to the third-generation Sorento’s cabin. A new modern, wrap-around dashboard has been added, as well as soft-touch materials and a range of advanced, onboard technologies, according to the company.
2014-07-31
Article
A demonstration vehicle uses Ethernet as the audio-bridging architecture to enable any media on any screen.
2014-07-31
WIP Standard
J3077
This document provides a summary of the activities to-date of Task Force #1 - Research Foundations -- of the SAE's Driver Vehicle Interface (DVI) committee. More specifically, it establishes working definitions of key DVI concepts, as well as a comprehensive list of data sources relevant to DVI design and the larger topic of driver distraction.
2014-07-30
Book
R. Parameshwaran, S. Kalaiselvam
Thermal Energy Storage Technologies for Sustainability is a broad-based overview describing the most up-to-date information on latent, sensible, and thermo-chemical energy storage systems, and their applications across industries. Beginning with a discussion of the efficiency and conservation advantages of balancing energy demand with production, the book goes on to describe current state-of-the art technologies. Not stopping with description, the authors also discuss design, modeling, and simulation of representative systems, and end with several case studies of systems in use. Thermal Energy Storage Technologies for Sustainability • Describes how thermal energy storage helps bridge the gap between energy demand and supply, particularly for intermittent power sources like solar, wind, and tidal systems • Provides tables, illustrations, and comparative case studies that show applications of TES systems across industries • Includes a chapter on the rapidly developing field of viable nanotechnology-based thermal energy storage systems
2014-07-30
WIP Standard
J2364
This document applies to both Original Equipment Manufacturer and aftermarket route-guidance and navigation system functions for passenger vehicles. It establishes two alternative procedures, a static method and an interrupted vision method, for determining which navigation and route guidance functions should be accessible to the driver while the vehicle is in motion. These methods apply only to the presentation of visual information and the use of manual control inputs to accomplish a navigation or route guidance task. The document does not apply to visual monitoring tasks which do not require a manual control input, such as route following. Voice-activated controls or passenger operation of controls are also excluded. There are currently no compelling data that would support the extension of this document to in-vehicle systems other than navigation systems.
2014-07-27
Article
FLEXConnect audio-video bridging system from Mitsubishi Electric Automotive America, Inc. is a next-generation in-vehicle infotainment system that provides flexibility for multiple displays and multiple content streams, allowing passengers to enjoy individual entertainment preferences.
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