Search results for "Automotive electronics"

showing 6 items of 6 documents

Numerical simulation of radiated EMI in 42V electrical automotive architectures

2006

The work is focused on the evaluation of radiated electromagnetic interference generated by dc/dc converters in 42 V systems automotive environment. The results obtained by using the method of moments and the finite difference time domain method, separately, are presented and validated in comparison with those measured in a semi-anechoic electromagnetic chamber. A measurement system set up by the authors is employed. Both the used numerical approaches are proved to be an useful tool for radiated disturbance prediction, and also for electromagnetic compatibility oriented design of the vehicle electrical architecture.

Computer simulationComputer scienceFinite-difference time-domain methodFinite difference methodElectromagnetic compatibilityMethod of moments (statistics)method of moments (MoM)Automotive electronicsElectromagnetic interferenceElectronic Optical and Magnetic MaterialsSettore ING-IND/31 - Elettrotecnica42 V road vehicle electrical systemsfinite-difference time-domain (FDTD) methodEMIElectronic engineeringelectromagnetic compatibility (EMC)42 V vehicle electrical systemsEMI EMC FDTD method MoMElectrical and Electronic Engineering
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FDTD simulation for electromagnetic radiated emissions in 42 V vehicle electrical systems

2005

In this paper a full 3D approach, based on finite difference time domain method, is used to predict the electromagnetic radiated emissions from 42 V vehicle electrical loads. An experimental set-up has been arranged on purpose. A comparative analysis among measured and computed results is performed. The good agreement obtained among simulated and measured data enables to validate the numerical scheme. The proposed methodology contributes to predict electromagnetic emissions in the automotive environment since the design stage. Moreover, the proposed numerical tool can be used to define, for new vehicle electrical architectures, low cost test methods for electromagnetic compatibility and sui…

EngineeringDesign stagebusiness.industryFDTDAutomotive industryElectromagnetic compatibilityFinite-difference time-domain methodTransmission-line matrix methodComputer simulationElectric vehicleElectromagnetic wave emissionAutomotive engineeringAutomotive electronicsAutomotive engineeringFinite difference time domain analysisSettore ING-IND/31 - ElettrotecnicaElectrical engineeringTime domain analysiElectronic engineeringComputational electromagneticselectromagnetic radiated emissionbusinessvehicular electrical systemElectric load
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An embedded datalogger with a fast acquisition rate for in-vehicle testing and monitoring

2011

A very compact and high performance datalogger for automotive in-vehicle testing is here described. The small logger dimensions and the availability of a CAN interface allows to easily implement multiple and distributed acquisition schemes, very challenging with traditional instrumentation. High acquisition rate, up to 100 Ksps/ch, and low cost was obtained through a very accurate hardware and software design.

Computer sciencebusiness.industryAutomotive industryData Acquisition In-Vehicle testingAutomotive electronicsSettore ING-INF/01 - ElettronicaCAN busMicrocodeEmbedded systemData loggerSoftware designInstrumentation (computer programming)businessThroughput (business)Automotive electronics controller area networks data loggers embedded systems
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A fuel cell-battery hybrid power supply for portable applications

2010

Today, academic and industrial research is addressed to fuel cell based hybrid power supply in many fields of applications including stationary, automotive and portable electronics. Increasing source runtime, speeding up the transient response while minimizing weight, volume and cost of the power supply system are key requirements of all applications. According to the particular application, the power management system is optimized for a specific feature. In this paper, a fuel cell–battery hybrid power supply for a Digital Camera is proposed, although the control algorithm can be efficiently applied to any portable device. Thanks to an innovative control on the input power, any fuel cell pr…

Engineeringbusiness.industryElectrical engineeringAutomotive industryAutomotive electronicsSettore ING-INF/01 - ElettronicaPower electronicsControl systemfuel cell hybrid power supplyTransient responseHybrid powerSwitched-mode power supply applicationsbusinessPower management system
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A hardware skin-segmentation IP for vision based smart ADAS through an FPGA prototyping

2017

International audience; In this paper we presents a platform based design approach for fast HW/SW embedded smart Advanced Driver Assistant System (ADAS) design and prototyping. Then, we share our experience in designing and prototyping a HW/SW vision based smart embedded system as an ADAS that helps to increase the safety of car's drivers. We present a physical prototype of the vision ADAS based on a Zynq FPGA. The system detects the fatigue state of the driver by monitoring the eyes closure and generates a real-time alert. A new HW/SW codesign skin segmentation step to locate the eyes/face is proposed. Our presented new approach migrates the skin segmentation step from processing system (S…

car driver safetyComputer scienceautomotive electronicsFPGA Prototyping02 engineering and technology01 natural sciencesIP networkshardware skin segmentation IPhardware-software vision based smart embedded system[SPI]Engineering Sciences [physics]HardwareHigh-level synthesis0202 electrical engineering electronic engineering information engineeringSegmentationField-programmable gate arrayimage segmentationSkinfield programmable gate arraysVision basedbusiness.industry010401 analytical chemistryVehiclesobject detectionplatform based design0104 chemical sciences[SPI.TRON]Engineering Sciences [physics]/ElectronicsProgrammable logic devicedriver information systemsimage recognitionStreaming mediaembedded smart advanced driver assistant systemEmbedded systemFacefatigue state detectionPlatform-based design020201 artificial intelligence & image processingembedded systemsState (computer science)vision based smart ADASbusinesshardware-software codesignroad safetyComputer hardwareSoftwareFPGA prototype
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On benchmarking the dependability of automotive engine control applications

2004

The pervasive use of ECUs (electronic control units) in automotive systems motivates the interest of the community in methodologies for quantifying their dependability in a reproducible and cost-effective way. Although the core of modern vehicle engines is managed by the control software embedded in engine ECUs, no practical approach has been proposed so far to characterise the impact of faults on the behaviour of this software. This paper proposes a dependability benchmark for engine control applications. The essential features of such type of applications are first captured in a general model, which is then exploited in order to specify a standard procedure to assess dependability measure…

Electronic control unitAutomotive engineSoftwarebusiness.industryProcess (engineering)Computer scienceBenchmark (computing)DependabilityBenchmarkingbusinessAutomotive electronicsAutomotive engineeringReliability engineering
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