Browse Topic: Electromagnetic compatibility

Items (753)
Find
Methodology to model EMI from E-motors and controller in the frequency range from 30 to 200 MHZ2026-26-0524To be published on 01/16/2026
As EMC testing for E-motor drives gains significance due to the involvement of high-frequency switching and high current systems. The radiated emission testing as per CISPR 25 necessitates utilizing an EMC-proof dynamometer to load the E-motor drives during EMC testing inside EMC chamber, which presents a highly complex and expensive testing arrangement. This paper outlines a detailed approach for modelling radiated emission without the usage of such a complex arrangement, by measuring conducted high-frequency currents on the DC and AC lines of motors and MCUs while utilizing a non-EMC-proof motor dynamometer under loaded conditions. In this paper the measurements are conducted in the frequency range of 30 MHz to 200 MHz where usually more issues due to switching noise occurs. The developed model facilities early stage diagnosis of potential EMC issue, enabling mitigation strategies before motor EMC testing. Validation of the method was performed through experimental comparison with
M, Gokul, Patel, Jinay, Mulay, Abhijit B
Electro Magnetic Radiation Analysis for the Vehicle Cable and Shielding Techniques and Performance Assessment2026-26-0563To be published on 01/16/2026
This paper addresses the challenges and methodologies for evaluating radiated emissions from automotive electronic systems, which is critical for achieving electromagnetic interference and compatibility (EMI/EMC) standards. The rapid integration of advanced electronic components in modern vehicles has transformed automotive systems, their potential to generate electromagnetic interference (EMI) becomes a significant concern, particularly due to its impact on vital communication and safety systems. The study mainly investigates radiated EMI, which is the unintentional emission of electromagnetic energy emitted by HV cables in the wiring harness layout, potentially disrupting the operation of nearby systems. This study utilized CST Studio Suite to analyse the electromagnetic behaviour of vertically and horizontally polarized antenna configuration in electric vehicles. The simulated results are benchmarked against international EMI/EMC standards such as CISPR-12 and CISPR-25, which
MANUELRAJ, MASILAMANI, prasad PhD, Suryanarayana, Narayanan, Siva Suriya
A systematic debugging methodology for identifying electric vehicle level EMC issues.2026-26-0525To be published on 01/16/2026
Electric vehicles present unique challenges in electromagnetic compatibility testing due to compact packaging, high-frequency switching systems. This paper presents a systematic debugging methodology for identifying radiated emission and radiated immunity issues in these EV platforms. A comprehensive approach is outlined, covering radiated emission measurement; Bulk Current Injection based immunity simulation, and near-field probing techniques. For RI evaluation, BCI testing in the 20 to 400 MHz range is used to simulate radiated threats on the vehicle's power and signal harnesses and handy transmitter near field injections for higher frequency simulation. For RE diagnosis, conducted emission measurements on vehicle harnesses are performed using current probes to capture high-frequency currents. Additionally, near-field electric probes are used at the component to identify dominant noise sources such as DC-DC converters, Motor control unit, and improperly grounded shielding. Case
M, Gokul, Patel, Jinay, Mulay, Abhijit B
Powering the Future: Addressing Power Architecture Bottlenecks in Next Gen Automotive Platforms2026-26-0688To be published on 01/16/2026
As the automotive industry moves from conventional function oriented embedded ECU-based systems to Code-driven system, the core electrical and electronic (E&E) architecture is also being redesigned to support more software-driven functionality. Modern and centralized architectures promise scalability and software-driven flexibility, but they also introduce significant challenges in power distribution-an area that remains underexplored despite its critical role in overall vehicle safety and performance. Our paper aims at the adoption of the traditional power distribution approach for Next Gen vehicle architecture. It requires a fresh look at how power is distributed. In a novel E&E architecture, a single power harness supplies battery voltage to each zone. If there's a failure or voltage drop, it can affect multiple functions within that zone at once, and management of voltage regulation, thermal dissipation, and EMI/EMC compliance becomes crucial. Adding to the complexity, safety
Borole, Akash, Warke, Umakant, CHAKRA, PIPUN, Jaisankar, Gokulnath
EMC Regulations of Construction Equipment Vehicles in India : Challenges and Solutions2026-26-0146To be published on 01/16/2026
Requirement for Construction Equipment Vehicles (CEVs) in India is continuously growing as India being fastest growing country in the world in terms of Infrastructure. The technology in the automotive industry is evolving rapidly in recent times. Thus, with the development of new technologies, the challenges are also ever-increasing from an Electromagnetic Interference, Susceptibility (EMI/EMC) and Safety perspective. CEVs include various types of machines including Compactor, Wheel Loader, Crane, Paver, Truck Crane, Cement Mixer etc. EMC requirements of all these types are internationally governed by ISO 13766-1, 2. This paper provides insights about various considerations to be taken during EMC Tests of each type of machines. It also includes guidelines related to antenna positioning, reference point calculations, Narrow Band and Broad band considerations. It will also provide general EMC guidelines and precautions related to component selection and placement along with typical EMC
Yeola, Mayur, Shinde, Avinash
Review on Conducted EMI by different PWM schemes in the EV Inverters2026-26-0181To be published on 01/16/2026
The advent of wide bandgap (WBG) switching MOSFET devices enables high-frequency operation, allowing for significant reductions in the size of passive components such as inductors and capacitors, and improving the overall efficiency of inverter systems. However, these benefits come with the trade-off of increased electromagnetic interference (EMI), which imposes stringent requirements on filter design. The complexity of designing EMI filters, which depends heavily on switching frequency and applicable EMI standards, presents a significant challenge and can impact development timelines. Carrier wave modulation technique is considered as an effective method for minimizing conducted EMI in traction inverters. This article presents various carrier wave modulation schemes that successfully reduce conducted EMI. The evaluated strategies aim to eliminate noise fluctuations and simplify the design of demanding EMI filters. Additionally, the impact on output voltage, output current, total
R, Kodeeswaran, Kuncham, Sateesh Kumar, Kolhatkar, Yashomani
Challenges in Compliance Testing of off-Board Electric Vehicle Chargers: Analysis of Typical Failures and Remedial Measures2026-26-0582To be published on 01/16/2026
As India accelerates the adoption of electric vehicles (EVs) the development of a scalable, reliable, and efficient charging infrastructure becomes critical to ensuring the success of EV adoption. During type testing, the off board AC/DC EV chargers undergo a comprehensive assessment to ensure they meet safety and performance standards required by regulations. The tests examine crucial factors like electrical safety, EMC (electromagnetic compatibility), interoperability, environmental endurance, and mechanical strength. This paper provides information of the mandatory compliance requirements and highlights typical failure modes observed during the validation process of off-board chargers. Emphasis is placed on challenges associated with electrical safety, EMC performance, and interoperability. The objective is to support charger manufacturers to identify potential issues during design and development.
Murumkar, Aditya, Mulay, Abhijit B
Black Box Approximation of EMI/EMC Filter Parasitics2026-26-0368To be published on 01/16/2026
Selecting the right EMI/EMC filter is a major challenge when system noise levels exceed compliance or pre-compliance limits. Inline PCB filters are designed to mitigate noise in standalone conditions, but their behavior changes when integrated into a larger system due to unknown parasitics. These parasitics can disrupt electromagnetic compatibility (EMC), leading to non-compliance. To address this, engineers often use off-the-shelf EMI filters, but determining their real-world effectiveness remains complex. Even with simulation-based methods, accurately predicting insertion loss and attenuation is difficult due to limitations in conventional modeling approaches. Traditional SPICE-based simulations rely on static models defined at specific frequency points, with interpolated values for intermediate frequencies. This interpolation introduces inaccuracies, affecting the precision of simulated results. To overcome these limitations, we propose a methodology that reconstructs a realistic
Pandey, Devbrat, Unterreiner, Michael, Mishra, Arvind, singh, Ankur
Research on Electromagnetic Interference Identification of Track Circuit Equipment Based on CNN Transformer2025-99-0416To be published on 12/10/2025
This paper proposes a track circuit interference identification model, which combines convolutional neural network (CNN) and transformer architecture to identify common types of electromagnetic interference in track circuit equipment. The model maps the time-frequency characteristics of the input monitoring signal into high-dimensional features through the deep learning model, and classifies the interference modes. Subsequently, a variety of common interference signals are generated for experimental verification, and the proposed model performs well on the test data. Ablation experiments show that the combination of convolutional neural network and attention mechanism can effectively improve the classification performance of interference.
Wei, Zijun, Yang, Shiwu, Dai, Meng, Feng, Qin, Chu, Shaotong
Significance of EMC Tests for Construction Equipment Vehicles2025-28-025611/06/2025
Requirement for Construction Equipment Vehicles (CEVs) in India is continuously growing due to India’s focus on infrastructure development. Technology in the automotive industry has evolved rapidly in recent times and it is also adding new dimensions to the compliance to Electromagnetic Interference, Susceptibility (EMI/EMC) and Safety. EMC and Safety requirements of CEVs are internationally governed by ISO 13766, Part 1 & Part 2. This paper discusses the significance of each aspect specified in these standards and its applicability. Due to nature of work carried out by construction equipment, there is absolutely no scope for compromise on safety for the same. Although Construction equipment standards are based on automotive standards, there are few additional tests which are part of ISO 13766, Part 1 and 2. This paper explains each aspect with practical case study. It also provides general EMC guidelines and precautions to be followed during design validation and product validation
Yeola, Mayur, Nigade, Mahesh, Mulay, Abhijit B
Research on Vehicle Fuel Abnormal Reduction Monitoring and Alert System Based on Dual-Mode Energy-Saving Control Technology2025-99-002510/17/2025
As an important bridge connecting cities and rural areas, highway transportation has an irreplaceable role in regional economic development [1]. Accompanied by the booming development of long-distance transportation industry, strengthening highway transportation is of great significance to improve people's living standards [2], but because of the special characteristics of truck transportation, fuel theft is frequent, seriously endangering the driver's life and the safety of goods transportation, although the police in the severe crackdown, but fuel theft seems to be in addition to inexhaustible, truck drivers lose oil incidents still occur from time to time, due to the increasingly serious energy problems, the world's countries have Due to the increasingly serious energy problems, countries around the world have formulated strict automotive fuel consumption rate (hereinafter referred to as fuel consumption) regulations [3], in the transportation process to prevent fuel theft is of
Liu, Yuzhen, Duan, ShuWen
BEV Powertrain Analytics: Network Pulse Ringing – Ripple Currents - NVH Topics2025-24-013409/07/2025
The interaction of electric, electronic (E/E) and mechanical components defines the quality of a BEV’s powertrain. Component selection, their integration and calibration aim at meeting legal requirements for EMC and safety as well as competitive targets for efficiency, NVH and driving comfort. These tasks in particular need attention on electromagnetic events on the DC bus, the high-power electronics of inverters, the e-motors, and the drive shaft. Each component within this environment is defined by its electromechanical features with variabilities selected from a large set of operating parameters. Consequently, a complete powertrain and its controllers give rise to endless combinations for powertrain operation. How to understand and avoid risk laden and ineffective parameter options, how to find powertrain control parameters for safe, efficient and comfortable operation? And how to find solutions within competitive development timeframes? Particular issues include high voltage risks
Winklhofer, Ernst, Berglez, Manuel, Kiss, Gergely, Platzer, Thomas
The Future of EMI Shielding Is Lightweight, Flexible, and Ready for Flight25AERP09_0509/01/2025
Modern military aircraft represent some of the most complex electronic environments ever engineered. These platforms integrate advanced avionics, radar systems, data links, and communication networks that must function seamlessly in hostile, high-frequency environments. In these mission-critical contexts, electromagnetic interference (EMI) poses a silent but serious threat that can degrade signal integrity, cause crosstalk between systems, or even lead to mission failure. The combination of increasing data rates, higher frequencies, and more complex electromagnetic environments demands shielding solutions that can deliver superior performance while contributing to overall system weight reduction. This challenge has driven innovation toward advanced materials that maintain electrical effectiveness while dramatically reducing mass.
10 Megabit/sec Network Configuration Digital Time Division Command/Response Multiplex Data BusAS5652A (Current)04/28/2025
This SAE Aerospace Standard (AS) contains requirements for a digital time division command/response multiplex data bus, for use in systems integration that is functionally similar to MIL-STD-1553B with Notice 2 but with a star topology and some deleted functionality. Even with the use of this document, differences may exist between multiplex data buses in different system applications due to particular application requirements and the options allowed in this document. The system designer must recognize this fact and design the multiplex bus controller (BC) hardware and software to accommodate such differences. These designer selected options must exist to allow the necessary flexibility in the design of specific multiplex systems in order to provide for the control mechanism, architectural redundancy, degradation concept, and traffic patterns peculiar to the specific application requirements.
AS-1A Avionic Networks Committee
A Novel EV Inverter Drive System with Integrated Single Stage Buck-Boost and Sinusoidal Output Voltage2025-01-857104/01/2025
A battery electric vehicle (BEV) employs a traction inverter to control a traction motor. One popular configuration is to make a HV battery directly connected to the input of the motor inverter. As a result, the maximum motor voltage is limited by the state of charge (SOC) of the traction battery. When the battery voltage is low the maximum motor speed and power are limited. This voltage limitation can be solved by using a traditional boost converter-based inverter. However, this approach has several disadvantages. The motor winding terminals see a PWM voltage, which results in high frequency harmonics that lead to EMI, NVH and potential additional insulation stress. Also, there are PWM-induced common mode voltages that are known to produce bearing failures as well as EMI/EMC problems that are extremely difficult to eliminate. Finally, the topology is significantly more expensive due to the high number of active switching devices needed. To solve some of the limitations and issues
Ge, Baoming, Munoz, Alfredo R., Jiang, Hong
Robust Quantum Sensors ProgramTBMG-5287904/01/2025
Defense Advanced Projects Research Agency (DARPA) Arlington, VA outreach@darpa.mil
Research on Invalid Target Filtering and Target Tracking Algorithm Optimization in Millimeter-Wave Radar Technology2025-01-703501/31/2025
The application of millimeter-wave radar technology in autonomous driving has become increasingly widespread with the rapid development of intelligent transportation systems. However, millimeter-wave radar is easily affected by environmental noise, multipath reflections, and electromagnetic interference, resulting in a large number of invalid target signals that reduce the system’s detection accuracy and safety. We proposes a method for filtering invalid targets based on interference signal characteristics and an Adaptive Interactive Multiple Model Kalman Filter (IMM-KF) target tracking algorithm. First, we effectively filter out empty targets, ghost targets, and false targets through a threshold method and lifecycle assessment, achieving a filtering rate exceeding 99.8%. Second, the improved Adaptive IMM-KF algorithm, combined with the Hungarian algorithm, associates and tracks multiple targets. The root mean square error (RMSE) of our methods is reduced by 7.07% and 8.05% compared to
Liu, Qi, Song, Kang, Xie, Hui, Meng, Chunyang
LEDs and Aircraft ApplicationsARP6253A (Current)01/09/2025
This document presents minimum criteria for the design and installation of LED assemblies in aircraft. The use of "shall" in this specification expresses provisions that are binding. Nonmandatory provisions use the term "should."
A-20C Interior Lighting
Electromagnetic Interference Measurement Study from Various Electric Drive Train2024-28-013812/05/2024
The article presents radio frequency electromagnetic emission measurement results from a Vehicle semi-anechoic chamber (VSAC) with different electric drivetrains under loading conditions. The measurements are conducted based on AIS 004 part-3 and CISPR 12 standard guidelines in which radiated broadband emissions in the frequency range of 30 MHz to 1 GHz using quasi-peak detector is measured [1, 2, 3]. Categories of vehicles such as Two-wheeler and three-wheeler drivetrains are selected for this study. Typically, the measurements are done with no road loading condition as per standard recommendation. However, in this paper, we studied the effects of loading conditions with the help of a chassis dynamometer. The study examines and discusses how various vehicle architectures behave under different conditions.
Mulay, Abhijit B, M, Gokul, Patel, Jinay M
SAE TOMORROW TODAY: Scaling Wireless EV Charging with SAE J29541348410/30/2024
How close is the EV industry to commercializing wireless charging? The answer lies in the SAE J2954 standard which establishes an industry-wide specification that defines the acceptable criteria for interoperability, electromagnetic compatibility, EMF, minimum performance, safety, and testing for wireless power transfer (WPT) of light-duty plug-in electric vehicles. For the latest insight, we sat down with Jesse Schneider, CEO/CTO, ZEV Station, and Chair, SAE Wireless Charging Taskforce for SAE J2954, and Ky Sealy, Engineering Fellow, WiTricity, and Subteam Lead of Wireless Charging Alignment for SAE J2954, to discuss the recent developments and the next generation of wireless power transfer. For more on the evolution of wireless charging adoption from ZEV Station and WiTricity, check out Episode 166 and Episode 114 in our back catalog. And if developing industry standards interests you, consider joining an SAE Committee. For more information, please email Standards Specialist, Dante
Hineman, Marcie
Fiber Optic Sensor Specification Guidelines for Aerospace ApplicationsARP6366 (Current)10/08/2024
ARP6366 defines a comprehensive and widely-accepted set of specification guidelines to be considered by those seeking to use or design fiber optic sensors for aerospace applications. Some of the most common applications for fiber optic sensing within aerospace include inertial guidance and navigation (gyros) and structural monitoring (temperature, strain, and vibration sensing). Common sensor infrastructure elements include: transmitting and receiving opto-electronics (e.g., sources and receivers); multiplexing and demultiplexing optics; optical cabling; and signal processing (both hardware and firmware/software).
AS-3 Fiber Optics and Applied Photonics Committee
To 6G and Beyond: Penn Engineers Unlock the Next Generation of Wireless Communications24AERP08_0708/01/2024
In the early 2010s, LightSquared, a multibillion-dollar startup promising to revolutionize cellular communications, declared bankruptcy. The company couldn't figure out how to prevent its signals from interfering with those of GPS systems. Now, Penn Engineers have developed a new tool that could prevent such problems from ever happening again: an adjustable filter that can successfully prevent interference, even in higher-frequency bands of the electromagnetic spectrum.
771-3 Low-Earth Orbiting Aviation Satellite Communication SystemsARINC771-3 (Current)07/26/2024
This document sets forth the desired characteristics of the Iridium Low-Earth Orbiting (LEO) Aviation Satellite Communication (Satcom) System avionics intended for installation in all types of aircraft including commercial transport, business, and general aviation aircraft. This document provides a description of the system components, aircraft interfaces, and satellite communication functions. It also describes the desired system performance and operational capability of the equipment. The equipment defined in these standards are capable of supporting Air Traffic Safety Serices. This characteristic specifies equipment using the next generation of Iridium satellites (referred to as Iridium NEXT) operating in L band. The services used on the NEXT network are referred to as Iridium Certus®. Based on maximum baud rates and antenna configuration different Certus Service Classes are offered. The Iridium NEXT/Certus satellite network replaces the Iridium legacy satellite network known as
Airlines Electronic Engineering Committee
829 Guidance for Wireless Use of COTS Crew DevicesARINC829 (Current)07/24/2024
This standard provides guidance on the preferred methods for establishing wireless connectivity and security for EFB devices. The Wireless Access Point (WAP) may be connected to an Aircraft Interface Device (AID) and/or the Inflight Entertainment System (IFE). Passenger devices are out of scope for this standard.
Airlines Electronic Engineering Committee
Electromagnetic Compatibility Assessment of Electric Vehicles during DC-Charging with European Combined Charging System2024-01-300807/02/2024
The ongoing energy transition will have a profound impact on future mobility, with electrification playing a key role. Battery electric vehicles (EVs) are the dominant technology, relying on the conversion of alternating current (AC) from the grid to direct current (DC) to charge the traction battery. This process involves power electronic components such as rectifiers and DC/DC converters operating at high switching frequencies in the kHz range. Fast switching is essential to minimise losses and improve efficiency, but it might also generate electro-magnetic interferences (EMI). Hence, electromagnetic compatibility (EMC) testing is essential to ensure reliable system operations and to meet international standards. During DC charging, the AC/DC conversion takes place off-board in the charging station, allowing for better cooling and larger components, resulting in increased power transfer, currently up to 350 kW. The EMC requirements for this charging method are outlined in IEC 61851
Supa Stölben, Inti Runa, Beltle, Michael, Tenbohlen, Stefan
858P1-1 Internet Protocol Suite (IPS) for Aeronautical Safety Services, Part 1, Technical RequirementsARINC858P1-1 (Current)07/02/2024
ARINC 858 Part 1 defines the airborne data communication network infrastructure for aviation safety services using the Internet Protocol Suite (IPS). ARINC 858 builds upon ICAO Doc 9896, Manual on the Aeronautical Telecommunication Network (ATN) using Internet Protocol Suite (IPS) Standards and Protocol. IPS will extend the useful life of data comm services presently used by operators, e.g., VDL, Inmarsat SBB, Iridium NEXT, and others. It represents the evolutionary path from ACARS and ATN/OSI to the end state: ATN/IPS. ARINC 858 includes advanced capabilities such as aviation security and mobility. This product was developed in coordination with ICAO WG-I, RTCA SC-223, and EUROCAE WG-108.
Airlines Electronic Engineering Committee
A CDMA Based Approach for QoS Improvement in Intra-Aircraft Wireless Sensor Networks (IAWSN)2024-26-043506/01/2024
Aviation industry is striving to leverage the technological advancements in connectivity, computation and data analytics. Scalable and robust connectivity enables futuristic applications like smart cabins, prognostic health management (PHM) and AI/ML based analytics for effective decision making leading to flight operational efficiency, optimized maintenance planning and aircraft downtime reduction. Wireless Sensor Networks (WSN) are gaining prominence on the aircraft for providing large scale connectivity solution that are essential for implementing various health monitoring applications like Structural Health Monitoring (SHM), Prognostic Health Management (PHM), etc. and control applications like smart lighting, smart seats, smart lavatory, etc. These applications help in improving passenger experience, flight operational efficiency, optimized maintenance planning and aircraft downtime reduction. Intra Aircraft WSNs (IAWSN) used for such applications are expected to provide robust
C S, Adishesha, Ramamurthy, Prasanna, Banerjee, Kumardeb, Barik, Mridul Sankar
Construction and Calibration of Parallel Plate Transmission Line for Electromagnetic Interference Susceptibility TestingAIR1209 (Current)05/29/2024
This Aerospace Information Report (AIR) is intended to provide information relating to the construction, calibration, and usage of parallel plate transmission lines in electromagnetic compatibility susceptibility testing.
AE-4 Electromagnetic Compatibility (EMC) Committee
Spectrum Analyzers for Electromagnetic Interference MeasurementsAIR1255 (Current)05/29/2024
This AIR was prepared to inform the aerospace industry about the electromagnetic interference measurement capability of spectrum analyzers. The spectrum analyzers considered are of the wide dispersion type which are electronically tuned over an octave or wider frequency range. The reason for limiting the AIR to this type of spectrum analyzer is that several manufacturers produce them as general-purpose instruments, and their use for EMI measurement will give significant time and cost savings. The objective of the AIR is to give a description of the spectrum analyzers, consider the analyzer parameters, and describe how the analyzers are usable for collection of EMI data. The operator of a spectrum analyzer should be thoroughly familiar with the analyzer and the technical concepts reviewed in this AIR before performing EMI measurements.
AE-4 Electromagnetic Compatibility (EMC) Committee
A Study on Optimization Development of Cooling Fan Motor for EMC2024-01-198804/09/2024
With the trend of electrification and connectivity, more electrified parts and more integrated chips are being applied. Consequently, potential problems based on electro-magnetic could occur more easily, and interest on EMC performance has been rising according to the degree of electrification. In this paper, one of the most severe systems, cooling fan motor in terms of EMI, is analyzed and improvement methods are suggested for each type of cooling fan. Additionally, an optimized configuration of improvement method for EMC has been derived through analysis and study. Finally, verification and validation are implemented at the system and vehicle levels. In this paper, the following effects were obtained by analyzing the cooling fan motor system and reviewing and optimizing the design factors from the EMC perspective. (1) Analyzing the impact of each EMC reduction device currently applied to the cooling fan motor according to specifications and optimizing the specification combination
Son, Jiwan, Lim, Taewoong, Kim, Chang Hwan
Wireless Power Transfer in Aircraft Systems2024-01-192703/05/2024
The aerospace industry is noticing significant shift towards More Electric Aircraft (MEA). The advancement of electrical technology the systems are being transformed towards electric compared to the conventional pneumatic or hydraulic systems. This has led to an increased demand in electrical power from 150 Kilo Watts in the conventional airplane to 1 Mega Watts in More Electric Aircraft. More electric systems, call for increased electrical wiring harness to connect various systems in the aircraft. These harnesses consist of power and data cables. Wireless communication technology is being matured for data communication, leading to reduction of wire harness for data. As of now, the length of wires in large commercial aircraft is over 100miles and it may not be surprising if the electrification of aircraft drive this too much longer. In this paper, a comparative study of various wireless power transfer techniques for DC voltage configuration and the corresponding challenges in an
C S, Adishesha, Thirunarayana, Ashok Kumar, Shreshthi, Mahadevanna, Barik, Mridul Sankar, Banerjee, Kumardeb
Corrosion Control and Electrical Conductivity in Enclosure DesignARP1481B (Current)02/27/2024
Corrosion control is always of concern to the designer of electronic enclosures. The use of EMI gaskets to provide shielding often creates requirements that are in conflict with ideal corrosion control. This SAE Aerospace Recommended Practice (ARP) presents a compatibility table (see Figure 1) which has as its objective a listing of metallic couples that are compatible from a corrosion aspect and which still maintain a low contact impedance.
AE-4 Electromagnetic Compatibility (EMC) Committee
Rydberg Technologies Shows Potential of Long-Range RF with Quantum Sensor at NetModX2324AERP02_0602/01/2024
Rydberg Technologies, an Ann Arbor, Michigan-based quantum technology startup, demonstrated the use of an atomic receiver for long-range RF applications during the NetModX23 event hosted by the U.S. Army Combat Capabilities Development Command (DEVCOM) C5ISR Center in December. The 2023 edition of NetModX featured 10 weeks of experimentation spanning 62 different technologies across 17 focus areas and five modernization priorities including “Future Vertical Lift, Long-Range Precision Fires, Network, Next Generation Combat Vehicle and Soldier Lethality,” according to the Army. A major goal sought by the C5ISR Center with NetModX is to take technologies that are nearing maturity from research labs directly into operational environments for assessments by active warfighters.
Comparative Analysis of Electromagnetic Radiated Emission for Electric Powertrain and Conventional Spark Ignition (SI) Powertrain2024-26-013301/16/2024
Due to the transformation of the automotive industry from conventional vehicles to electric vehicles, new challenges have emerged concerning Electromagnetic Compatibility. Though the Radiated Emission limits in global regulation are the same for both types of powertrains of vehicles, however, due to the phenomena of conversion of high voltage to low voltage, rapid charging/discharging, and different components involved in electric powertrain, the Radiated Emission from electric vehicles give a strikingly different trend which is challenging to combat. When compared with the conventional Spark Ignition vehicle, many other electronic components of the electric vehicle stay in the mode of Power ON while in the “Ignition ON” steady state. This resulted in us observing a significant shift in the amplitude and frequency throughout the frequency band of Radiated Emission measurement. This paper presents a comparative analysis of the changing trends of Radiated Emission from Spark Ignition
Pawar, Sneha Ravindra, Desai, Manoj Madhukar
Automotive EMC Analysis of Touch Sensing IC2024-26-035301/16/2024
The technology in the automotive industry is evolving rapidly in recent times. Thus, with the development of new technologies, the challenges are also ever-increasing from an Electromagnetic Interference and Susceptibility (EMI/EMC) perspective. A lot of the latest technologies in Adaptive Driver Assistance Systems (ADAS), which include Rear Drive Assist, Blind Spot Detection (BSD), Lane Change Assist (LCA) to name a few, and other features like Anti-Braking System (ABS), Emergency Brake Assist (EBD) etc. rely heavily on different types of sensors and their detection circuitry. In addition, a lot of other internal functions in the Engine Control Unit (ECU) also depend on such sensors’ functionalities. Thus, it becomes imperative to study the potential impact of higher field emissions on the immunity behaviour of the sensors. In this paper, we will study the immunity behaviour of such an automotive capacitive touch-sensing integrated circuit (IC) and its impact on the application of the
Boya, Vinay Kumar, Adhyapak, Anoop, Komma, Vineetha, Sahoo, Manoranjan
Comparison between State of Art Performance of GaN and SiC Converters for Electric Vehicle Application2024-26-013401/16/2024
The automotive industry is witnessing remarkable progress in various facets of vehicle design, encompassing powertrain. To further boost the performance and efficiency of electric vehicles, researchers and designers are venturing beyond conventional silicon-based solutions into cutting-edge technologies. Among these, the application of wide-bandgap materials, specifically silicon carbide (SiC) and gallium nitride (GaN), in power-semiconductor devices for electric vehicles has gained significant popularity. Wide-bandgap-based voltage source converters crafted from SiC and GaN materials demonstrate superior efficiency when compared to their silicon counterparts. However, it is crucial to note that their performance largely hinges on their utilization at high switching frequencies. With the aim of identifying the most suitable technology for future electric vehicle applications, researchers conducted a comprehensive analysis comparing the efficiency of SiC and GaN devices. The
Mehrotra, Soumya, Ray, Rakesh Kumar, Pandey, Devbrat, Naithani, Hardik
Electromagnetic Compatibility (EMC) Analysis for e-Motors and Controllers of Electric Two-Wheelers2024-26-009801/16/2024
The Indian government has been promoting electric vehicles through various policy initiatives, such as offering incentives and subsidies to EV manufacturers and consumers, establishing charging infrastructure across the country, and setting ambitious targets for EV adoption. These measures aim to reduce the dependence on imported fossil fuels, mitigate air pollution, and promote sustainable mobility. As a result, the demand for electric vehicles across India is steadily increasing, and the country is emerging as a lucrative market for EVs globally. An electronically commuted brushless DC (BLDC) motor usually functions for traction in electric two-wheelers. Electric vehicles need to comply with electromagnetic compatibility (EMC) requirements. During the EMC compliance of electric two-wheelers, it is certain that the BLDC motor and its controller play an important role. This paper presents the BLDC motor and controller’s Radiated Emission (RE) performance at Electronic Sub-Assembly (ESA
Pawar, Sneha Ravindra, Desai, Manoj Madhukar
Navigating the Future of Medical Device Safety: The Role of High-Attenuation Shielding in Electromagnetic CompatibilityTBMG-4978201/01/2024
In the realm of medical technology, the quest for reliability and safety is unending. As medical devices become increasingly sophisticated, so too does the challenge of protecting these devices from electromagnetic interference (EMI). The concept of electromagnetic compatibility (EMC) has thus become a pivotal consideration for medical device manufacturers. At the heart of this concern lies high-attenuation shielding, a critical component in safeguarding sensitive medical equipment against the disruptive forces of EMI.
Vehicle Simulations development to predict Electric field level distribution based on GB/T18387 measurement method2023-32-007109/29/2023
The development of electric vehicles has been progressed, rapidly, to achieve Carbon neutrality by 2050. There have been increasing concerns about Electromagnetic Compatibility (EMC) performance due to increasing power for power trains of vehicles. Because same power train system expands to some vehicles, we have developed numerical simulations in order to predict the vehicle EMC performances. We modeled a vehicle which has inverter noises by numerical simulation to calculate electric fields based on GB/T18387. We simulated the common mode noise which flows through the shielding braid of the high voltage wire harnesses. As a result, it is confirmed a correlation between the electric fields calculated by numerical simulation and the measured one.
Miwa, Keishi, Watari, Toshio, Nishimura, Hiroyuki, Ogawa, Hiroki
Electromagnetic Compatibility (EMC) System Design ChecklistAIR1221A (Current)09/28/2023
This checklist is to be used by project personnel to assure that factors required for adequate system electromagnetic compatibility are considered and incorporated into a program. It provides a ready reference of EMC management and documentation requirements for a particular program from preproposal thru acquisition. When considered with individual equipments comprising the system and the electromagnetic operational environment in which the system will operate, the checklist will aid in the preparation of an EMC analysis. The analysis will facilitate the development of system- dependent EMC criteria and detailed system, subsystem, and equipment design requirements ensuring electromagnetic compatibility. It should be noted that all subjects are not covered and that all items listed may not be required on a given program.
AE-4 Electromagnetic Compatibility (EMC) Committee
Electromagnetic Interference Measurement Impulse Generators: Standard Calibration Requirements and TechniquesARP1267A (Current)09/18/2023
This Aerospace Recommended Practice (ARP) describes a standard method and means for measuring or calibrating the "Spectrum Amplitude" output of an impulse generator.
AE-4 Electromagnetic Compatibility (EMC) Committee
Filters, Conventional, Electromagnetic Interference Reduction General Specification ForARP1172A (Current)09/18/2023
This specification covers the general requirements for conventional AC and/or DC current carrying filter networks for the reduction of electromagnetic interference. A conventional filter is defined herein as a component containing definitive, lumped, R-L-C components and not employing distributed parameters as a required characteristic.
AE-4 Electromagnetic Compatibility (EMC) Committee
792-2 Second-Generation Ku-Band and Ka-Band Satellite Communication SystemARINC792-2 (Current)08/25/2023
This standard sets forth the desired characteristics of a second-generation aviation Ku-band and Ka-band satellite communication (satcom) system intended for installation in all types of aircraft.
Airlines Electronic Engineering Committee
615A-4 - Software Data Loader Using Ethernet InterfaceARINC615A-4 (Current)07/24/2023
This document provides general and specific design guidance for the development of software data loading equipment for all types of aircraft. The primary purpose of data load is to upload loadable software parts to airborne computers. A secondary function of data load is downloading data from airborne computers. Software data load functionality generally falls into the following categories: Portable Data Loader (PDL) for loading equipment on the ground or carried onto aircraft to perform onboard loading. Airborne Data Loader (ADL) for installation on aircraft to perform onboard loading. Data Load Function (DLF) is software that performs the data loading. This document defines data loaders designed to load avionics equipment over a high-speed interface using an Ethernet network protocol. This document defines media interfaces and protocol requirements specific to all data load functions, whether portable or airborne. This document also describes the desired capabilities of data loading
Airlines Electronic Engineering Committee, Avionics Maintenance Committee, Flight Simulator Engineering and Maintenance Committee
Autonomous Vehicle Engineering: July 202323AVEP0707/06/2023
Editorial The Level 3 conundrum continues The Navigator The subscriptions are coming for your wallet Kodiak Bearish on Spreading Truck Automation Kodiak Robotics' fifth-generation sensor stack and new SensorPods enhance sensor and GPU performance and improve power efficiency. Making Sense of Next-gen ADAS Sensing Experts at AutoSens 2023 explain how technology is right-setting the industry's driver-assist and autonomy ambitions. Simulation vs. Organizational Inertia The chief technical officer of simulation giant VI-grade says that even as it offers a wide range of solutions, some companies are slow to believe in the proven reductions in development time and cost. Self-driving Supercar! This year's iteration of Italy's classic-car-oriented Mille Miglia race showcased an audacious nod to the future: an autonomous high-performance Maserati. Testing ADAS Functions in Parallel with EMS Measurement In vehicle final inspection, safety-relevant functions of the driver-assistance system can be
628P1-8 Cabin Equipment Interfaces, Part 1, Cabin Management and Entertainment System - PeripheralsARINC628P1-8 (Current)06/26/2023
This document defines system architectural philosophy and specific design guidance for the design and interface of various cabin related components. System performance parameters are described for connectors, electrical interfaces, operational mode control/protocols, BITE reporting, reliability, environmental conditions, and software data loading. Supplement 8 defines an IEEE 802.11n compliant Cabin Wireless Access Point (CWAP) suitable for installation in a wide variety of cabins. It provides an update to the digital overhead monitor mounting provisions and connectors for compatibility with the CWAP definition. Supplement 8 includes new generation implementation solutions for Cabin Wireless Access Points (CWAP) and Cabin Cell Modems (CCM). The description and interface definitions for an HD cabin and cargo video surveillance system is added. Finally, it includes the component definition and network specifications.
Airlines Electronic Engineering Committee
812AP1-3 Standard Data Interferes for Galley Insert (GAIN) Equipment, Part 1, CAN CommunicationsARINC812AP1-3 (Current)06/19/2023
The purpose of this specification is to define the general Galley Insert (GAIN) standardization philosophy, provide comprehensive equipment interfaces, and disseminate the most current industry guidance. Part 1 covers the Controller Area Network (CAN) data interface attachments, envelopes, and data content to be considered between all galley equipment using a Galley Data Bus as described within this specification. This document is intended as the successor and replacement for ARINC Specification 812. This document contains significant improvements to CAN data interfaces.
Airlines Electronic Engineering Committee
High-Speed CAN (HSC) for Vehicle Applications at 125 kbpsJ2284/1_202305 (Current)05/10/2023
This SAE Recommended Practice will define the Physical Layer and portions of the Data Link Layer of the Open Systems Interconnection model (ISO 7498) for a 125 kbps High Speed CAN (HSC) protocol implementation. Both ECU and media design requirements for networks will be specified. Requirements will primarily address the CAN physical layer implementation. Requirements will focus on a minimum standard level of performance from the High Speed CAN (HSC) implementation. All ECUs and media shall be designed to meet certain component level requirements in order to ensure the HSC implementation system level performance at 125 kbps. The minimum performance level shall be specified by system level performance requirements or characteristics described in detail in Section 5 of this document. This document is designed such that if the Electronic Control Unit requirements defined in Section 6 are met, then the system level attributes should be obtainable. This document will address only
Vehicle Architecture For Data Communications Standards
High-Speed CAN (HSC) for Vehicle Applications at 250 kbpsJ2284/2_202305 (Current)05/10/2023
This SAE Recommended Practice will define the Physical Layer and portions of the Data Link Layer of the Open Systems Interconnection model (ISO 7498) for a 250 kbps High Speed CAN (HSC) protocol implementation. Both ECU and media design requirements for networks will be specified. Requirements will primarily address the CAN physical layer implementation. Requirements will focus on a minimum standard level of performance from the High Speed CAN (HSC) implementation. All ECUs and media shall be designed to meet certain component level requirements in order to ensure the HSC implementation system level performance at 250 kbps. The minimum performance level shall be specified by system level performance requirements or characteristics described in detail in Section 5 of this document. This document is designed such that if the Electronic Control Unit (ECU) requirements defined in Section 6 are met, then the system level attributes should be obtainable. This document will address only
Vehicle Architecture For Data Communications Standards
Electric Vehicle Power Transfer System Using Conductive Automated Connection DevicesJ3105_202305 (Current)05/05/2023
This document covers the general physical, electrical, functional, testing, and performance requirements for conductive power transfer, primarily for vehicles using a conductive ACD connection capable of transferring DC power. It defines conductive power transfer methods, including the infrastructure electrical contact interface, the vehicle connection interface, the electrical characteristics of the DC supply, and the communication system. It also covers the functional and dimensional requirements for the vehicle connection interface and supply equipment interface. New editions of the documents shall be backwards compatible with the older editions. There are also sub-documents which are identified by a SAE J3105/1, SAE J3105/2, and SAE J3105/3. These will be specific requirements for a specific interface defined in the sub-document. SAE J3105: Main document, including most requirements. ○ SAE J3105/1: Infrastructure-Mounted Cross Rail Connection ○ SAE J3105/2: Vehicle-Mounted
Hybrid - EV Committee
Items per page:
1 – 50 of 753