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2014-11-12
Article
The AD2410 transceiver from Analog Devices, Inc.(ADI) is the first in a family of devices that enables ADI’s new automotive audio bus, which significantly reduces the weight of existing cable harnesses, resulting in improved vehicle fuel efficiency while delivering high fidelity audio.
2014-11-12
Article
A Level 2 electric vehicle charger that can dispense power based on the available grid supply is undergoing its first field test in Detroit.
2014-11-12
Article
When a pedestrian appears on the road ahead of your car, it's a potentially dangerous situation. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at Honda's new driver-assist feature called "Honda Sensing."
2014-11-12
Magazine
Harley-Davidson's e-bike shocker (video) Is the motorcycle market ready for a Harley-Davidson EV? Project LiveWire was designed to provide answers, said Chief Engineer Jeff Richlen. Airbus has its eye on the future of cleaner flight CleanSky 2 targets are to increase aircraft fuel efficiency enough to reduce CO2 emissions by 20-30% and reduce aircraft NOx and noise emissions by 20-30% compared to newly designed aircraft entering into service in 2014-or essentially halve 2005 CO2 emissions levels by 2050. Soul EV extends the range frontier (video) Specially formulated NCM battery cells are key in giving the vehicle class-leading EV range while enabling engineers to fit a high-energy-density battery pack underfloor with little sacrifice of passenger cabin space.
2014-11-11
Technical Paper
2014-32-0069
Ken Fosaaen
Abstract Global concerns over pollution have led to increasingly strict emissions legislation targeting small engines, which currently pollute at a much greater level than modern multi-cylinder automotive engines. Closed-loop control may be required to meet many future legislation requirements; however, such systems can be impractical due to high added component costs. A necessary component for closed-loop engine control is an oxygen sensor. Existing automotive oxygen sensors are too large, require too much power, and are far too expensive to be suitable for the vast majority of the global small engine applications; therefore, some manufacturers have developed smaller and/or unheated versions based on their existing sensors to meet this emerging need. The ability to miniaturize resistive based sensors well below that of traditional Nernst (zirconia based) oxygen sensors affords the opportunity to meet future emissions standards with less of an impact on cost.
2014-11-11
Technical Paper
2014-32-0075
Kazuyoshi Shimatani
Abstract Various sensors including throttle position sensors (TPS), manifold pressure sensors (MPS), crank angle sensors, engine temperature sensors, and oxygen sensors are mounted in electronically controlled fuel injection (FI) systems to accurately regulate the air-fuel ratio according to the operating state and operating environment. Among these vehicle-mounted sensors, TPS has functions for detecting a fully-closed throttle and estimating intake air volume by the amount of throttle opening. Currently, we have conducted a study on transferring TPS functions into the MPS (manifold pressure sensor) in order to eliminate the TPS. Here we report on detecting a fully-closed throttle for achieving fuel cut control (FCC) and idle speed control (ISC) in fuel injection systems. We contrived a means for fully-closed throttle detection during ISC and controlling changes in the bypass opening during FCC in order to accurately judge each fully-closed throttle state via the manifold pressure.
2014-11-11
Technical Paper
2014-32-0073
Horizon Walker Gitano, Ray Chim, Jian Loh
Abstract Recent concern over air quality has lead to increasingly stringent emissions regulations on ever smaller displacement engines, resulting in the application of Electronic Fuel Injection (EFI) to the 100cc-200cc class 2-wheelers in many countries. In the pursuit of ever smaller and less expensive EFI systems a number of unique technologies are being explored, including resistive type oxygen sensors. In this paper we investigate the application of a prototype resistive oxygen sensor to a small motorcycle EFI system. Measurements of the exhaust system temperatures, and Air/Fuel Ratio (AFR) and resistive sensor response are carried out, and compared to the standard zirconia oxygen sensor to create an estimate of the sensor's in-use performance. Motorcycle performance data are compared using both a standard zirconia switching type oxygen sensor, and the new resistive type oxygen sensor to control the air/fuel ratio.
2014-11-11
Technical Paper
2014-32-0071
Christian Schweikert, David Witt, Dirk Schweitzer, Marco Nicolo, Liu Chen
Abstract The market potential for products such as scooters and small motorcycles is already self-sustaining. However, other applications for small engines can be more fragmented with a wide variety of requirements for the engine control unit. Consequently, the engine control unit can be designed to accommodate more features than are necessary for a given application to cover a broader market. The flip side of this approach is to design the engine control unit for a limited application reducing the market size. Neither approach creates a cost efficient product for the producer. It either supplies the market with an electronic control unit that has features not being utilized (wasted costs) or a unit that has limited capabilities reducing the economies of scale (higher costs). When these designs are developed using discrete components these inefficiencies are exacerbated.
2014-11-11
Technical Paper
2014-32-0137
Ken Fosaaen
Abstract Global concerns over pollution have led to increasingly strict emissions legislation targeting small engines, which currently pollute at a much greater level than modern multi-cylinder automotive engines. Closed-loop control may be required to meet many future legislation requirements; however, such systems can be impractical due to high added component costs. A necessary component for closed-loop engine control is an oxygen sensor. Existing automotive oxygen sensors are too large, require too much power, and are far too expensive to be suitable for the vast majority of the global small engine applications; therefore, some manufacturers have developed smaller and/or unheated versions based on their existing sensors to meet this emerging need. The ability to miniaturize resistive based sensors well below that of traditional Nernst (zirconia based) oxygen sensors affords the opportunity to meet future emissions standards with less of an impact on cost.
2014-11-11
Technical Paper
2014-32-0143
Ken Fosaaen
Abstract Global concerns over pollution have led to increasingly strict emissions legislation targeting small engines, which currently pollute at a much greater level than modern multi-cylinder automotive engines. Closed-loop control may be required to meet many future legislation requirements; however, such systems can be impractical due to high added component costs. A necessary component for closed-loop engine control is an oxygen sensor. Existing automotive oxygen sensors are too large, require too much power, and are far too expensive to be suitable for the vast majority of the global small engine applications; therefore, some manufacturers have developed smaller and/or unheated versions based on their existing sensors to meet this emerging need. The ability to miniaturize resistive based sensors well below that of traditional Nernst (zirconia based) oxygen sensors affords the opportunity to meet future emissions standards with less of an impact on cost.
2014-11-11
Technical Paper
2014-32-0007
Joseph K. Ausserer, Alexander K. Rowton, Keith D. Grinstead, Paul J. Litke, Marc D. Polanka
Abstract In this work, in-cylinder pressure was measured in a 55 cc single cylinder, 4.4 kW, two stroke, spark ignition engine. In cylinder pressure measurements were taken using two different pressure transducers to determine if the performance differences between the two transducers are discernible in a small, spark ignition engine. A Kistler brand measuring spark plug was compared to a Kistler brand flush mount high temperature pressure sensor. Both sensors employ piezo-electric pressure sensing elements and were designed to measure indicated mean effective pressure as well as to detect knock at high temperature engine conditions. The pressure sensors were installed and adjusted to ensure cylinder volume after sensor installation matched the engine's original configuration within reasonable manufacturing tolerances. A series of tests at four throttle settings ensued to determine if either device altered the combustion volume or the engine's performance.
2014-11-11
Technical Paper
2014-32-0027
T Manikandan, S Sarmadh Ameer, A Sivakumar, Samaraj Dhinagar
Abstract The proposed paper is on electrical energy conservation in a two wheeler. Electrical energy generation adds a 12% load torque on an engine and hence saving electrical energy would ultimately reduce the consumption of fuel. Load Control Module (LCM) is a single intelligent device which is placed in between electrical energy generation and consumption. The module controls and distributes energy to the corresponding loads depending on parameters like battery voltage, engine RPM, overhead light illumination levels and load usage time. The module prioritizes battery charging for prolonging the life of the battery. The Module has a microcontroller and load drivers and it is programmed with a novel algorithm for prioritization and energy distribution with respect to input conditions.
2014-11-11
Standard
AS22520/31
Scope is unavailable
2014-11-11
WIP Standard
J3083
This Recommended Practice (RP) document will provide guidance on performing a non-handbook reliability prediction for automotive electronic products by utilizing field return data. It will include a description of what kind of data is required, possible sources of data, how to collect it, and the methodology of how to process these data to obtain failure rates. This document will also include the existing failure rate data Delphi Electronics & Safety is currently using for reliability prediction and the Excel-based tool for these types of calculations.
2014-11-11
Journal Article
2014-32-0107
Takahiro Masuda, Kouji Sakai, Yuki Yamaguchi, Jun-ichi Kaku, Hirobumi Nagasaka
Abstract This paper proposes a novel engine starter system composed of a small-power electric motor and a simple mechanical valve train. The system makes it possible to design more efficient starters than conventional systems, and it is especially effective to restart engines equipped with idling stop systems. Recently, several idling stop systems, having intelligent start-up functions and highly-efficient generate capabilities have been proposed for motorcycles. One of challenges of the idling stop systems is the downsizing of electric motors for starting-up. However, there are many limitations to downsize the electric motors in the conventional idling stop systems, since the systems utilize the forward-rotational torque of the electric motors to compress the air-fuel mixture gas in the cylinders.
2014-11-10
WIP Standard
AS28937A
No scope available.
2014-11-10
WIP Standard
AS28938A
No scope available.
2014-11-10
Book
Ian K. Jennions
Integrated Vehicle Health Management: Implementation and Lessons Learned is the fourth title in the IVHM series published by SAE International. This new book introduces a variety of case studies, lessons learned, and insights on what it really means to develop, implement, or manage an integrated system of systems. Integrated Vehicle Health Management: Implementation and Lessons Learned brings to the reader a wide set of hands-on stories, made possible by the contribution of twenty-three authors, who agreed to share their experience and wisdom on how new technologies are developed and put to work. This effort was again coordinated by Dr. Ian K. Jennions, Director of the IVHM Centre at Cranfield University (UK), and editor of the previous books in the series.
2014-11-10
WIP Standard
J1939/71
The SAE J1939 communications network is developed for use in heavy-duty environments and suitable for horizontally integrated vehicle industries. The SAE J1939 communications network is applicable for light-duty, medium-duty, and heavy- duty vehicles used on-road or off-road, and for appropriate stationary applications which use vehicle derived components (e.g. generator sets). Vehicles of interest include, but are not limited to, on-highway and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements.   SAE J1939-71 Vehicle Application Layer is the SAE J1939 reference document for the conventions and notations that specify parameter placement in PGN data fields, the conventions for ASCII parameters, and conventions for PGN transmission rates.
2014-11-07
WIP Standard
AS5659/4
This specification provides guidance for the physical layer of optical networks which use Wavelength Division Multiplexing (WDM), within the SAE AS5659 WDM LAN specifications document family. The physical layer consists of cabling and connectors which provide the optical interconnections between the components and portions of the network. Performance requirements for general link connections- called the physical layer- are described. Specific sets of documents are identified, corresponding to each of several environments, which describe physical layer design, installation, maintenance, and training.
2014-11-07
WIP Standard
AS5659/2
This document describes the Client Adaptation Element (CAE), the set of functions that provides access and aggregation capability for the WDM LAN, within the SAE AS5659 WDM LAN specifications document family. In the WDM LAN, the CAE fits in between the Optical Backbone, which provides transmission of data over the transparent network, and the clients which the network serves. The complexity of the CAE depends on the types and number of clients.
2014-11-07
WIP Standard
AS5659/3
This document describes network management and control facilities for the WDM LAN, within the SAE AS5659 WDM LAN specifications document family. Unlike like point-to-point solutions, networks require a control plane to allocate the shared network resources and a management plane which provides a disciplined approach to configuring and monitoring the network. Within a Wavelength Division Multiplexed (WDM) environment, management and control provides wavelength selection and routing for traffic that is processed. The extent of network management and control depends on the design of the network, and can range from hardwired wavelengths to dynamic wavelength allocation with damage recovery.
2014-11-07
WIP Standard
AS5659/1
This document provides a specification for the WDM Optical Backbone Network (OBN) within the SAE AS5659 WDM LAN specifications document family. The specification applies to any optical network which uses Wavelength Division Multiplexing (WDM) in any optical media, and describes a transparent optical network that contains optical components (i.e. without Optical-to-Electrical conversion). The specification describes optical network elements (ONE) that perform optical transport, optical add/drop, optical amplification, optical routing, and optical switching functions. Performance limits are given for conforming optical signal interfaces and transfer functions for the ONEs, as well as architectures comprising combinations of them. This specification will enable network and systems engineers to design and use scalable and upgradable WDM based optical networks aboard mobile platforms.
2014-11-07
WIP Standard
J1938
The following subjects reflect the automotive environment and are based on good engineering practices and past ("lessons learned") experiences. Since it is impossible to be all inclusive and cover every aspect of quality and reliability, this document should be used as a basis for preparation of a more comprehensive and detailed checklist that reflects the accumulated "lessons learned" at a particular Company. It is not the intent of this document to give a lot of detail, only to point out the type of subjects that need to be investigated and acted upon.
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