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Viewing 181 to 210 of 15825
WIP Standard
2014-04-15
Only those incidents where a piece of ground support equipment directly associated with the "turnaround" servicing of an aircraft was involved are reviewed. Specifically excluded are those incidents that occurred during heavy maintenance, overhaul activity, or aircraft taxiing. This SAE Aerospace Information Report (AIR) summarizes aircraft damage, coupled with contributory factors, caused by GSE. it also offers recommendations in reducing exposure to aircraft damage.
Article
2014-04-14
The Visteon- and Cisco-developed OASIS (Optimized, Adaptable, Secure, Intelligent, Seamless) concept makes secure car-to-cloud communications the prerequisite for unlocking vehicle network connectivity-associated benefits.
Standard
2014-04-14
These recommendations are provided to aid the international air transport industry by identifying a standard, minimum amount of safety instructions that should be given to sight-impaired passengers. This document is not meant to address problems associated with communicating safety information to sight- impaired passengers who are also hearing impaired or non- conversant in the language(s) used by the cabin crew to disseminate general safety information to passengers. Aircraft operators are encouraged to customize the safety instructions for their own operations in order to ensure that required safety information is provided to sight-impaired passengers.
Standard
2014-04-14
This SAE Aerospace Recommended Practice (ARP) establishes design guidance and photometric values for adequate cargo compartment and cargo access lighting systems for ground handling. The adoption of a standard set of illuminance values, found appropriate for the performance of the task in specified areas should expedite ground handling.
WIP Standard
2014-04-14
The purpose of this SAE Aerospace Information Report (AIR) is to provide management, designers, and operators with information to assist them to decide what type of power train monitoring they desire. This document is to provide assistance in optimizing system complexity, performance and cost effectiveness. This document covers all power train elements from the point at which the gas generator energy is transferred to mechanical energy for propulsion purposes. The document covers engine power train components, their interfaces, transmissions, gearboxes, hanger bearings, shafting and associated rotating accessories, propellers and rotor systems as shown in Figure 1. This document addresses application for rotorcraft, turboprop, and propfan drive trains for both commercial and military aircraft. Information is provided to assist in; a. Defining technology maturity and application risk b. Cost benefit analysis (Value analysis) c. Selection of system components d. Selection of technology e.
WIP Standard
2014-04-11
This SAE Aerospace Standard (AS) establishes minimum design and performance requirements for galley insert equipment with an electrical and/or pressure system, as well as associated components intended for installation in galleys and other areas (e.g., bars) of transport category airplanes.
Article
2014-04-10
With the large commercial van market continuing to grow, Mercedes-Benz continues to improve its Sprinter van to keep it the “best” in a crowded field.
Article
2014-04-10
The system uses specific Sport Mode algorithms with modules from the high-speed CAN data bus, including those for adaptive cruise control, forward facing camera, all-wheel drive, shift-by-wire, electric power steering, transmission, and powertrain.
Article
2014-04-10
Dangers from malware, including ransom demands, must be pro-actively avoided as industry and owners enter era of connected cars. For all their conveniences, telematics could pose ugly series of risks that will require new approaches to prevent, explains Cisco Systems scientist to SAE Congress attendees. Vulnerabilities are in many areas, including the OBD system.
Standard
2014-04-09
This SAE Recommended Practice encompasses the significant factors which determine the effectiveness of a seat system in limiting spinal injury during vertical impacts between the rider and the snowmobile seat system. The document is intended to provide a tool for the development of safer snowmobile seats. It is recognized that the seat is only a portion of the entire vehicle protective suspension system. It is, however, usually required that the seat serve as added protection to the suspension system, since the latter may "bottom out" during a severe impact. The term "seat" refers to the occupant-supporting system not normally considered part of the vehicle suspension or frame system. In some cases, it may include more than the foam cushion. This document provides the minimum requirements for performance of a general seat system, and a description of specific means of evaluating the shock-absorbing characteristics of foam seat cushions using a specific testing procedure and a companion seat evaluation chart.
Article
2014-04-05
According to Lord's Andrew J. Winzenz, companies wanting to compete in the industrial market must expand their expertise beyond components to system-level design.
Article
2014-04-03
A new occupant-protection technology from TRW Automotive Holdings Corp. has the passenger-seat airbag deploying from the headliner instead of the dashboard. It is being launched on the Citroën C4 Cactus.
Standard
2014-04-03
This SAE Aerospace Recommend Practice (ARP) is intended to identify both safety related best practices and unique design considerations of metal halides High Intensity Discharge (HID) lamps and power supplies in aircraft applications.
WIP Standard
2014-04-03
This document provides guidance for in-flight rest facilities provided for use by cabin crew on commercial transport aircraft.. This document is applicable to dedicated cabin crew rest facilities. Passenger seats used to provide “cabin crew rest facilities” are not within the scope of this document.
WIP Standard
2014-04-03
This document defines the requirements for developing an Electronic Components Management Plan (ECMP), hereinafter also called the Plan, to assure customers and regulatory agencies that all of the electronic components in the equipment of the Plan owner are selected and applied in controlled processes compatible with the end application; and that the Technical Requirements detailed in clause 5.0 are accomplished. In general the owners of a complete Electronic Components Management Plan are avionics equipment manufacturers.
WIP Standard
2014-04-02
This SAE Recommended Practice presents the general uses, limitations on use, and appearance of the safety alert symbol.
WIP Standard
2014-04-02
This document provides guidance concerning the maintenance and serviceability of oxygen cylinders beginning with the quality of oxygen that is required, supplemental oxygen information, handling and cleaning procedures, transfilling and marking of serviced oxygen assemblies. This document attempts to outline in a logical sequence oxygen quality,serviceability and maintenance of oxygen cylinders.
Article
2014-04-01
All new vehicles under 10,000 lb will be required to have rearview camera technology under a final rule issued March 28 by NHTSA (U.S. National Highway Traffic Safety Administration). The rule applies to vehicles ranging from passenger cars to trucks and buses (any vehicle under 10,000 lb) built on or after May 1, 2018.
Technical Paper
2014-04-01
Parul Goyal, Feng Liang, Olof Oberg
Abstract The aim of the paper is to describe how Volvo Construction Equipment uses a virtual product development process to analyze potential risks, find root causes and optimize future product development. A model based method is used to analyze a potential risk in the design of Wheel Loader transmissions. The risk was recognized from failure mode and effect analysis (FMEA), and a simulation model using AMESim modeling tool was developed to analyze the behavior of the new design. Together with test rig result, it is proved that the model based method gives a considerably accurate prediction of the system behavior. By using the model based approach, lead time for development process is reduced and important feedbacks from simulation model are obtained on early stage of the development. This paper further presents the use of the simulation model as a tool to predict the potential risks in the extreme operating conditions, which are difficult to test on the vehicle test bench.
Technical Paper
2014-04-01
Thomas Juergen Boehme, Tobias Sehnke, Matthias Schultalbers, Torsten Jeinsch
Abstract In this paper an energy management is proposed which is optimal to certain driving scenarios which can be clustered into freeway, rural and urban situations. This strategy is non-predictive but uses information about the current driving situation provided by modern navigation systems to identify the current road type. Based on this information a set of simplified optimal control problems are solved offline via an indirect shooting algorithm. By relaxation of the problem formulation, the solutions of these optimal control problems can be stored into easily implementable maps. The energy management control is then determined from these maps during vehicle operation using the current road type, the vehicle speed and the required wheel-torque. The strategy is implemented in a dSPACE MicroAutoBox and validated on a near mass-production vehicle. The proposed methodology has shown fuel savings on a real world drive cycle. Additionally, robustness aspects have been considered in a MATLAB/Simulink based simulation environment.
Technical Paper
2014-04-01
David Renfroe, Alex Roberts, Raphael Grzebieta, George Rechnitzer, J. Keith Simmons
Abstract This paper examines the directional handling characteristics of several vehicles in their original condition, then examines modifications to a few of these vehicles to determine if the handling characteristics can be made more forgiving of normal operators without sacrificing utility and without substantial increases in cost. These analyses of vehicles are made in the context of what normal operators are capable of performing with regards to steering response.
Technical Paper
2014-04-01
Louis Tijerina, James Sayer
Abstract The objectives of this study were a) to determine how expert judges categorized valid Integrated Vehicle-Based Safety Systems (IVBSS) Forward Collision Warning (FCW) events from review of naturalistic driving data; and b) to determine how consistent these categorizations were across the judges working in pairs. FCW event data were gathered from 108 drivers who drove instrumented vehicles for 6 weeks each. The data included video of the driver and road scene ahead, beside, and behind the vehicle; audio of the FCW alert onset; and engineering data such as speed and braking applications. Six automotive safety experts examined 197 ‘valid’ (i.e., conditions met design intent) FCW events and categorized each according to a taxonomy of primary contributing factors. Results indicated that of these valid FCW events, between 55% and 73% could be considered ‘nuisance alerts’ by the driver. These were the FCW alerts presented in benign conditions (e.g., lead-vehicle turning) or as a result of deliberate driver action (aggressive driving).
Technical Paper
2014-04-01
David LeBlanc, Mark Gilbert, Stephen Stachowski, Rini Sherony
Pre-collision systems (PCS) use forward-looking sensors to detect the location and motion of vehicles ahead and provide a sequence of actions to help the driver either avoid striking the rear-end of another vehicle or mitigate the severity of the crash. The actions include driver alerts, amplification of driver braking as distance decreases (dynamic brake support, DBS), and automatic braking if the driver has not acted or has not acted sufficiently (crash imminent braking, CIB). Recent efforts by various organizations have sought to define PCS objective test procedures and test equipment in support of consumer information programs and potential certification. This paper presents results and insights from conducting DBS and CIB tests on two production vehicles sold in the US. Eleven scenarios are used to assess the systems' performance. The two systems' performance shows that commercial systems can be quite different. Also demonstrated is the experience with test equipment, including a towable target that has been designed for resiliency and radar signature, a braking robot, and bumper guard.
Technical Paper
2014-04-01
Chi-Chun Yao, Jin-Yan Hsu, Yu-Sheng Liao, Ming Hung Li
Abstract Vehicle Rollover Prevention/Warning Systems have recently been an important topic in Advanced Driver Assistance Systems (ADAS) of automotive electronics field. This paper will propose a rollover-prevention system implementation with vehicle dynamic model, video-detection technique and rollover index to help the driver avoid accidents as driving into a curve. Due to the reason that vehicle rollover motion analysis needs complicated computation and accurate parameters of vehicle stability in real time, in the first stage a vehicle dynamic model based on Extended Kalman Filter (EKF) algorithm is built, which can estimate vehicle roll/yaw motion in the curve by vehicle sensors. And then the image-based technique will be employed in detecting the front road curvature, and combined in the system to predict vehicle steering status. The final stage is to apply the vehicle rollover index with estimated vehicle motion to predict the dangerous level to drivers for warning. In the system validation, a Digital Signal Processor (DSP) with Microcontroller Unit (MCU) hardware structure is equipped and implemented in our vehicle experimental platform.
Technical Paper
2014-04-01
Gauri Ranadive, Anindya Deb, Bisheshwar Haorongbam
Abstract Load cells and accelerometers are commonly used sensors for capturing impact responses. The basic objective of the present study is to assess the accuracy of responses recorded by the said transducers when these are mounted on a moving impactor. In the present work, evaluation of the responses obtained from a drop-weight impact testing set-up for an axially loaded specimen has been carried out with the aid of an equivalent lumped parameter model (LPM) of the set-up. In this idealization, a test component such as a steel double hat section subjected to axial impact load is represented with a nonlinear spring. Both the load cell and the accelerometer are represented with linear springs, while the impactor comprising a hammer and a main body with the load cell in between are modelled as rigid masses. An experimentally obtained force-displacement response is assumed to be a true behavior of a specimen. By specifying an impact velocity to the impactor as an initial condition and using an implicit time integration technique, it is shown that the model accurately reproduces the input load-displacement behavior of the nonlinear spring corresponding to the tested component.
Technical Paper
2014-04-01
Edgar Yoshio Morales Teraoka, Shin Tanaka, Tsutomu Mochida
Abstract We develop a simulation tool which reproduces lane departure crashes for the purpose of estimating potential benefits of Lane Departure Warning (LDW) systems in the American traffic environment. Tools that allow a fast evaluation of active safety systems are useful to make better systems, more effective in the real world; however accuracy of the results is always an issue. Our proposed approach is based on developing a simulation tool that reproduces lane departure crashes, then adding the effect of the LDW to compare the cases with and without the safety system, and finally comparing the results of different settings of the safety system. Here, the accurate reproduction of the relevant crashes determines the reliability of the results. In this paper, we present the reproduction of the lane departure crashes occurred in American roads in one year, by using data distributions obtained from retrospective crash databases. We analyze data from NASS/GES1 and NASS/CDS2 to obtain the characteristics of lane departure accidents in the USA.
Technical Paper
2014-04-01
Masayuki Takemura, Masato Imai, Masahiro Kiyohara, Kota Irie, Masao Sakata, Shoji Muramatsu
Abstract Driver safety continues to be improved by advances in active safety technologies. One important example is Lane Departure Warning (LDW). European regulators soon will require LDW in big cars to reduce traffic accidents and New Car Assessment Programs in various countries will include LDW in a few years. Our focus is on rear cameras as sensing devices to recognize lane markers. Rear cameras are the most prevalent cameras for outside monitoring, and new Kids and Cars legislation will make them obligatory in the United States from 2014. As an affordable sensing system, we envision a rear camera which will function both as a rear-view monitoring device for drivers and as an LDW sensing device. However, there is a great difficulty involved in using the rear camera: water-droplets and dirt are directly attached to the lens surface, creating bad lens condition. The purpose of this study is to improve the durability of lane recognition systems when water-droplets and dirt are deposited on the lens surface.
Technical Paper
2014-04-01
Stanley Chien, Qiang Yi, David Good, Ali Gholamjafari, Yaobin Chen, Rini Sherony
Abstract While the number of traffic fatalities as a whole continues to decline steadily over time, the number of pedestrian fatalities continues to rise (up 8% since 2009) and comprises a larger fraction of these fatalities. In 2011 there were 4,432 pedestrians killed and an estimated 69,000 pedestrian injuries [1]. A new generation of Pedestrian Pre-Collision Systems (PCS) is being introduced by car manufactures to mitigate pedestrian injuries and fatalities. In order to evaluate the performance of pedestrian PCS, The Transportation Active Safety Institute (TASI) at Indiana University-Purdue University Indianapolis is developing a set of test scenarios and procedures for evaluating the performance of pedestrian PCS with the support of the Collaborative Safety Research Center of Toyota. Pedestrian crashes are complex in that there are many aspects about location, driver behavior, and pedestrian behaviors that may have implications for the performance of the PCS. This complexity will generate far more scenarios than can be reasonably tested.
Technical Paper
2014-04-01
Cheng-Lung Lee, Hongyi Zhang, Hong Nguyen, Yu-Ting Wu, Christopher Smalley, Utayba Mohammad, Mark J. Paulik
Abstract A novel multi-modal scene segmentation algorithm for obstacle identification and masking is presented in this work. A co-registered data set is generated from monocular camera and light detection and ranging (LIDAR) sensors. This calibrated data enables 3D scene information to be mapped to time-synchronized 2D camera images, where discontinuities in the ranging data indicate the increased likelihood of obstacle edges. Applications include Advanced Driver Assistance Systems (ADAS) which address lane-departure, pedestrian protection and collision avoidance and require both high-quality image segmentation and computational efficiency. Simulated and experimental results that demonstrate system performance are presented.
Viewing 181 to 210 of 15825

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