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Technical Paper
2014-09-16
Stephen Emo, Jamie Ervin, Travis E. Michalak, Victor Tsao
Abstract Numerous previous studies have highlighted the potential efficiency improvements which can be provided to aircraft thermal management systems by the incorporation of vapor cycle systems (VCS), either in place of, or in conjunction with, standard air cycle systems, for providing the needed thermal management for aircraft equipment and crews. This paper summarizes the results of a cycle-based VCS control architecture as tested using the Vapor Cycle System Research Facility (VCSRF) in the Aerospace Systems Directorate of the Air Force Research Laboratory at Wright-Patterson Air Force Base. VCSRF is a flexible, dynamic, multi-evaporator VCS which incorporates electronic expansion valves and a variable speed compressor allowing the flexibility to test both components and control schemes. The goal of this facility is to reduce the risk of incorporating VCS into the thermal management systems (TMS) of future advanced aircraft. In this paper, the authors discuss the hardware configuration, as well as the differences between a baseline control architecture (consisting of evaporator superheat and system capacity control) and the suggested cycle-based control.
Technical Paper
2014-09-16
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.
Article
2014-09-04
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.
Magazine
2014-09-03
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.
Magazine
2014-09-02
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.
Article
2014-08-29
The relationship between consumer electronics and automotive infotainment systems is intensifying as smart phone operating systems become a factor in development strategies.
Article
2014-08-29
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.
Article
2014-08-28
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. 
Standard
2014-08-28
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.
Article
2014-08-27
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.
WIP Standard
2014-08-26
This SAE Aerospace Information Report (AIR) describes two classes of lubricants which, when properly applied, can be used in oxygen systems and components.
Magazine
2014-08-22
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.
Article
2014-08-20
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.
WIP Standard
2014-08-20
This document describes the CAD model data available from SAE for the two-dimensional H-point template (HPM-1).
Article
2014-08-12
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.
Article
2014-08-12
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.
Standard
2014-08-12
The specifications contained in this SAE Standard pertain to high tension ignition cable used in road vehicle engine ignition systems.
Standard
2014-08-11
This SAE Standard specifies the general requirements and test methods for nonshielded high-tension ignition cable assemblies.
Article
2014-08-06
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.
WIP Standard
2014-08-06
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.
Article
2014-08-05
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.
Article
2014-07-31
A demonstration vehicle uses Ethernet as the audio-bridging architecture to enable any media on any screen.
WIP Standard
2014-07-31
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.
WIP Standard
2014-07-30
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.
Article
2014-07-27
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.
Standard
2014-07-24
This SAE Recommended Practice applies to the use of generally available leak detection methods to service motor vehicle passenger compartment air conditioning systems.
Standard
2014-07-17
To provide standard terminology and definitions with regard to ignition systems for spark-ignited internal combustion engines.
Standard
2014-07-11
This document specifies that black is the only color that can be used for the insulator at the bottom of the base of T-1 and T-1 ¾ Flanged Base lamps.
Standard
2014-07-11
This SAE Aerospace Information Report (AIR) provides a general overview of oxygen systems for general aviation use. Included are a brief review of the factors and effects of hypoxia, system descriptions, and mission explanations for system or component selection, and techniques for safe handling of oxygen distribution systems.
Magazine
2014-07-10
Off-highway engines advance beyond Tier 4 With Tier 4 Final/Stage IV needs met, engine OEMs direct their focus and competitive energies toward optimizing competitive solutions. At the same time, they need to keep a weather eye out for future regulations, which many expect. Autonomous vehicle challenges span many fields Many of the challenges faced by military and commercial design teams are similar. Racket busters With a quiet cab at the top of many tractor buyers' wish lists, agricultural equipment manufacturers are pursuing every opportunity possible to shed decibels.
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