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2016-04-05
Technical Paper
2016-01-0016
Jörg Schäuffele
Agenda: - Trends - Challenges - PREEvision approach - A practical example - Summary and outlook
2016-04-05
Technical Paper
2016-01-0097
Felix Gow, Lifeng Guan, Jooil Park, Jaekwon Kim
TPMS has become a popular system due to regulation in many countries. TPMS consists of sensors that measure air pressure and temperature in the tires. Each sensor transmits sensor information to TPMS control unit for display purpose via RF. The commercial trailers having a long body (longer than 7 m) require a RF repeater to increase the data transmission range. Located near to rear wheels, RF repeater receives sensor signal in the rear wheels and transmits the signal to TPMS control unit. In this paper, we discuss RF repeater transmits at multiple frequencies in order to increase signal reception. On TPMS control unit, RF receiver is able to tune to receive frequencies used in sensor and RF repeater. Other method for improving reception is to transmit same payload multiple times at same frequency as that of sensor. In the paper, other important specifications are discussed as RF repeater design is concerned. A user’s case of RF repeater is implemented.
2016-04-05
Technical Paper
2016-01-1445
Jonathan Dobres, Bryan Reimer, Bruce Mehler, James Foley, Kazutoshi Ebe, Bobbie Seppelt, Linda Angell
Driving behaviors change over the lifespan, and some of these changes influence how a driver allocates visual attention. The present study examined the allocation of glances during single-task (just driving) and dual-task highway driving (concurrently tuning the radio using either visual-manual or auditory-vocal controls). Results indicate that older drivers maintained significantly longer single glance durations across tasks compared to younger drivers. Compared to just driving, visual-manual radio tuning was associated with longer single glance durations for both age groups. Off-road glances were subcategorized as glances to the instrument cluster and mirrors (“situationally-relevant”), “center stack”, and “other”. During baseline driving, older drivers spent more time glancing to situationally-relevant targets. During both radio tuning task periods, in both age groups, the majority of glances were made to the center stack (the radio display).
2016-04-05
Technical Paper
2016-01-0165
Padmanaban Dheenadhayalan
Innovation in the field of intelligent autonomous systems of the automotive sector has been ever increasing. Accurate tracking of vehicles is an important aspect in the design of applications such as smart route planning or collision avoidance systems. In practical applications, tracking of vehicle using radar technology suffers from serious problem due to noisy measurements. It introduces major limit on the accuracy of the tracking system. This paper discusses a case study scenario where the robustness of vehicle tracking can be improved using Extended Kalman Filtering. Noisy radar measurement is simulated through model based design (MBD) using MATLAB. Analysis and design of Extended Kalman Filter to mitigate the noise is discussed. An efficient system architecture to implement the algorithm in autonomous smart vehicle tracking system is also identified.
2016-04-05
Technical Paper
2016-01-0047
Umesh Patel, Sreenivasa Parnasala, Chamaraj Melinmath, KM Khalid, Chandrakantha Ursu
RACam is an Active Safety product designed and manufactured at Delphi and is part of their ADAS portfolio. It combines two sensors – Electronically Scanned RADAR and Camera in single box. RADAR and Vision fusion data is used to realize safety critical systems such as Adaptive Cruise Control (ACC), Autonomous Emergency Braking (AEB), Lane Departure Warning (LDW), Lane Keep Assist (LKA), Traffic Sign Recognition (TSR) and Automatic Headlight Control (AHL). With an increase in active safety features in the automotive market there is also a corresponding increase in the complexity of the hardware which supports these safety features. Delphi’s hardware design for active safety has evolved over the years. In Delphi’s RACam product there are a number of critical components required in order to realize Radar and Vision in a single package. RACam is also equipped with a fan and heater to increase the operating temperature range.
2016-04-05
Technical Paper
2016-01-0120
Libo Huang, Huanlei Chen, Zhuoping Yu, Jie Bai
Automotive radar is the most important component in the autonomous driving system, which detects the obstacles, vehicles and pedestrians around with acceptable cost. The target tracking is one of the key functions in the automotive radar which measures the position and velocity of the targets. Modern automotive radar requires a multi-target tracking algorithm, as in the radar field of view, hundreds of targets can present. In the vehicle field test, the automotive monopulse radar faces very complicated and fast-changing road conditions, which include tunnels and curved roads. The curved tunnel walls work like mirrors which reflect the electromagnetic waves coming out from the radar and reflected by the targets. The unreal targets, which are generated by the reflected electromagnetic waves by the walls instead of the direct waves, must be well identified by the radar peak detection. Multiple reflections by the parallel tunnel walls create many unreal targets.
2016-04-05
Technical Paper
2016-01-0074
Michael Jensen
Electronics now control or drive a large part of automotive system design and development, from audio system enhancements to improvements in engine and drive-train performance, and innovations in passenger safety. Industry estimates suggest that electronic systems account for more than 30% of the cost of a new automobile and represent approximately 90% of the innovations in automotive design. As electronic content increases, so does the possibility of electronic system failure and the potential for compromised vehicle safety. Even when designed properly, electronics can be the weakest link in automotive system performance due to variations in component reliability and environmental conditions. Engineers need to understand worst-case system performance as early in the design process as possible.
2016-04-05
Technical Paper
2016-01-0077
Satoru Komatsu, Suguru Imai, Kenji Taguchi, Tatsuya Kashiwa
FM receiver compatibility with vehicle has been evaluated by obtaining the reception characteristics of broadcast waves by repetitive road tests; however the evaluation method had problems in terms of the objectivity and reproducibility. To solve those problems, Two-Stage method was developed for generating virtual radio wave environments, and enabling the evaluation of vehicle compatibility. Nevertheless, Two-Stage method has a difficulty in the reproduction of actual radio environment on a PC, thus estimation of incoming waves by experiment is necessary by using the likes of MUSIC (Multiple Signal Classification) method. However, application of MUSIC method to FM reception has an issue in the separation performance for multipath waves in urban area due to constraints such as the number of antenna elements and occupied bandwidth.
2016-04-05
Technical Paper
2016-01-0082
Satoru Komatsu, Yoshio Karasawa, Tatsuya Kashiwa, Kenji Taguchi, Suguru Imai
Vehicle compatibility of FM receiver (hereafter will be referred to as “FM device”) has been evaluated by obtaining reception characteristics of broadcast waves by repetitive road tests in a certain test environment. Evaluation of reception characteristics while driving had depended on sound evaluation by a limited number of examinees due to a difficulty in quantitative evaluation using actual broadcast waves, thus there had been issues in its reproducibility and objectivity. To solve issues mentioned above, Two-Stage method fading emulator (hereafter will be referred to as “Two-Stage method”) was developed by generating virtual radio wave environment on a calculator. Moreover, multipath distortion rate (MDr) was defined as the benchmark for sound evaluation, and then vehicle compatibility evaluation of FM device was reported at the 2015SAE World Congress. Technical issue of Two-Stage method is to reproduce a radio environment which is identical to actual reception environment.
2016-04-05
Technical Paper
2016-01-0079
Tomohisa Harada, Yoshiyuki Hattori, Shinya Ito, Mitoshi Fujimoto, Toshikazu Hori
Recently, the electromagnetic interference to an AM radio by the noise generated from a power control unit in an HV has become a serious problem. In order to solve the problem, most of noise countermeasures focus on noise sources and noise propagation paths. On the other hand, a countermeasure in the radio receiver has been also proposed. This method detects the HV noise by using a noise sensor, and then, the noise signal is subtracted from AM radio signal which the noise superimposed. In this paper, a new noise suppression method using the digital signal processing in the AM radio receiver is proposed, which does not need noise sensors. The procedure of the method is as follows: First, a receiving AM radio signal containing HV noises is resolved into the in-phase component and quadrature component of a carrier by applying a quadrature demodulation.
2016-04-05
Technical Paper
2016-01-0094
Jaya Gaitonde, R B Lohani
Photodetectors are important components in automotive industry. Sensitivity, speed, responsivity, quantum efficiency and power dissipation are the important characteristics of a photodetector. We report a high performance photodetector based on GaAs Metal- Semiconductor Field Effect Transistor (MESFET), with very high responsivity, high sensitivity, very high quantum efficiency, high speed and low power dissipation, surpassing their photodiode and phototransistor counterparts. A theoretical model of GaAs front illuminated Optical Field Effect transistor is presented. The photovoltaic and photoconductive effects have been taken into account. The gate of the OPFET device has been left open to make a reduction in the number of power supplies. The device shows high potential in automotive applications.
2016-04-05
Technical Paper
2016-01-0101
Carl Arft, Yin-Chen Lu, Jehangir Parvereshi
Oscillators are key components in automotive electronics systems. For example, a typical automotive camera module may have three or more oscillators, providing the clocks for microcontrollers, Ethernet controllers, and video chipsets. These oscillators have historically been built around a quartz crystal resonator connected to an analog sustaining circuit driving the crystal to vibrate at its resonant frequency. However, quartz-based devices suffer from poor performance and reliability in harsh automotive environments. SiTime has developed timing solutions based on silicon micro-electromechanical systems (MEMS) technology that exhibit better electromagnetic noise rejection and better performance under shock and vibration. In this paper, we first discuss the design and manufacturing of the MEMS-based device, with emphasis on the specific design aspects that improve reliability and resilience in harsh automotive environments.
2016-02-08
WIP Standard
J1292
This document is being revised to remove the references made to Truck, Truck Tractor and Trailer per the agreement between the SAE Truck and Bus Electrical Systems Subcommittee and the SAE Electrical Distribution System Standards Committee. The Truck and Bus committee has replaced the referenced documents with newer SAE documents. The documents that supersede SAE J1292 are SAE 2174 "Heavy Duty Wiring Systems for Trailers more than 2032 MM or More in Width" and SAE J2202 "Heavy Duty Wiring Systems For On Highway Trucks".
2016-02-01
Magazine
Clamoring for more entertainment Connected consumers drive demand for bandwidth, though seatback entertainment remains popular. Fighting for life in military markets Airbus Defense & Space is looking to revitalize and ramp up production rates of its military aircraft portfolio.
2016-01-15
WIP Standard
J1939DA
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.
2015-12-20
Standard
AS85731B
This specification covers positive locking fasteners intended for use in aircraft to secure electronic line replaceable units (LRUs).
2015-12-20
Standard
AS85731/1B
SCOPE IS UNAVAILABLE.
2015-12-20
Standard
AS85731/2A
SCOPE IS UNAVAILABLE.
2015-12-18
WIP Standard
AIR6236A
This AIR provides guidance to the EMI test facility on how to check performance of the following types of EMI test equipment: Current probe Line Impedance Stabilization Network (LISN) Directional coupler Attenuator Cable loss Low noise preamplifier Rod antenna base Passive antennas All performance checks can be performed without software. A computer may be required to generate an electronic or hard copy of data. This is not to say that custom software might not be helpful; just that the procedures documented herein specifically eschew the necessity of automated operation.
2015-12-13
Standard
AIR6236
This AIR provides guidance to the EMI test facility on how to check performance of the following types of EMI test equipment: Current probe Line Impedance Stabilization Network (LISN) Directional coupler Attenuator Cable loss Low noise preamplifier Rod antenna base Passive antennas All performance checks can be performed without software. A computer may be required to generate an electronic or hard copy of data. This is not to say that custom software might not be helpful; just that the procedures documented herein specifically eschew the necessity of automated operation.
2015-12-06
Standard
ARP6338
This document is intended for use by designers, reliability engineers, and others associated with the design, production, and support of electronic sub-assemblies, assemblies, and equipment used in ADHP applications to conduct lifetime assessments of microcircuits with the potential for early wearout; and to implement mitigations when required; and by the users of the ADHP equipment to assess those designs and mitigations. This document focuses on the LLM wearout assessment process. It acknowledges that the ADHP system design process also includes related risk mitigation and management; however, this document includes only high-level reference and discussion of those topics, in order to show their relationship to the LLM assessment process.
2015-12-01
Magazine
Touch and go Avionics developments are changing life in the cockpit and at airborne work stations Sandwich cores for the future Decreasing weight while increasing strength is always critical, from airliners to future space missions to Mars. Research in sandwich cores today may lead to radical improvements in the future.
2015-11-23
Book
John Day
Sophisticated infotainment systems, lane departure warning, adaptive cruise control, and blind-spot monitoring are increasingly common in cars today. The proliferation of automotive electronics and other “smart” features has increased the market for automotive semiconductor devices and the number of sensors per vehicle. Yet, more chips and greater functionality translate to further networking/communications activity within the car, and that raises the prospect of potentially serious errors.
2015-10-21
Standard
J1939DA_201510
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.
2015-09-29
WIP Standard
ARP6348
This document provides additional guidance on performing lifetime assessments and mitigations for ARP6338. It is intended for use by designers, reliability engineers, and others associated with the design, production, and support of electronic sub-assemblies, assemblies, and equipment used in ADHP applications.
2015-09-28
WIP Standard
TB0003A
This Technical Bulletin covers the following areas of concern. Prevention: Actions recommended for procuring parts and materials with a full warranty; Actions recommended for minimizing risks and protecting your Program from counterfeiting; Actions recommended when buying from a non-authorized supplier. Detection: Actions recommended when procuring parts from an unauthorized supplier or otherwise suspect that a part or material at risk of being counterfeit has been procured. Risk Mitigation: Actions recommended when no reasonable alternatives exist (e.g., a redesign is required, an unacceptable schedule delay will result, the program or customer cannot bear the additional cost) and the decision has been made to procure from a non-authorized supplier.
2015-09-17
Standard
J551/15_201509
This SAE Standard specifies the ESD test methods and procedures necessary to evaluate electronic modules intended for vehicle use. It describes test procedures for evaluating electronic modules in complete vehicles. A procedure for verifying the simulator that is used to generate the electrostatic discharges is given in Appendix A. Functional status classifications for immunity to ESD are given in Appendix B.
2015-09-15
Technical Paper
2015-01-2556
Thomas Rousselin, Guillaume Hubert, Didier Regis, Marc Gatti
Abstract The changes brought by the increasing integration density and the new technological trends have pushed the reliability at its limit. Safety analysis for critical system such as embedded electronics for avionics systems needs to take into account these changes. In this paper, we present the consequences on the deep sub-micron (DSM) CMOS devices concerning their single event effect (SEE) sensitivity. We also propose a new modeling method in order to address these issues.
2015-09-15
Technical Paper
2015-01-2555
Ephraim Suhir, Alain Bensoussan, Johann Nicolics
There is a concern that the continuing trend on miniaturization (Moore's law) in IC design and fabrication might have a negative impact on the device reliability. To understand and to possibly quantify the physics underlying this concern and phenomenon, it is natural to proceed from the experimental bathtub curve (BTC) - reliability “passport” of the device. This curve reflects the combined effect of two major irreversible governing processes: statistics-related mass-production process that results in a decreasing failure rate with time, and reliability-physics-related degradation (aging) process that leads to an increasing failure rate. It is the latter process that is of major concern of a device designer and manufacturer. The statistical process can be evaluated theoretically, using a rather simple predictive model.
2015-09-15
Technical Paper
2015-01-2443
Nivedita Chanda
Abstract Aircrafts use Transponder for transmitting data to Air Traffic Control ground stations. Transponders automatically transmit a unique four-digit code when they receive a radio signal sent by radar. But when Transponder is shut down, and the redundant transponder fails to operate, there is no system within the aircraft which can continue transmitting altitude and important data to ATC ground stations. This has necessitated active research work to fundamentally design better and effective communication systems. At present, there is no evident redundant system to transponder unlike in case of Power-Plants, three-fold reliable, safety cum redundant power supply system are present. The present work introduces a novel design ‘RTSA’ which can be effective in catering safe transmission of emergency signal.
Viewing 1 to 30 of 2137

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