Influence of Automotive Harnesses on Conducted Emissions

Rebholz, H.; Tenbohlen, Stefan

doi:10.1109/emczur.2009.4783434

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…the CISPR 25 standard (CISPR 25, 2016), that – besides the proposed limits – contains the measurement setup (Figure 1) for a general device under test (DUT). As the resonance behavior of this setup influences the measurement results – at resonance peaks the CE increases (Rebholz and Tenbohlen, 2009) – taking this effect into account in the design phase for electromagnetic compatibility (EMC) is of key importance. Due to the variability of the setup – change in the permittivity and height of the foam or the length and arrangement of the cables – that the CISPR 25 standard still enables, one should address an uncertainty quantification (UQ) problem to thoroughly study the resonance effect and enhance the reproducibility of the measurement (Carobbi and Izzo, 2018).…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis for automotive EMC measurements using quasistatic Darwin model

Bingler

Bilicz

Csörnyei³

2021

COMPEL

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Purpose The purpose of this paper is performing a global sensitivity analysis for automotive electromagnetic compatibility (EMC) measurements related to the CISPR 25 setup in order to examine the effect of the setup uncertainties on the resonance phenomenon. Design/methodology/approach An integral equation formulation is combined with Darwin model and special Green’s functions to model the configuration. The method of Sobol’ indices is used to gain sensitivity factors enhanced with a polynomial chaos metamodel. Findings The proposed model resulted in by orders of magnitude lower number of degrees of freedom and runtime compared to popular numerical methods, e.g. finite element method. The result of the sensitivity study is in good agreement with the underlying physical phenomena and improves the understanding of the resonances. Practical implications The fast model supplemented by the sensitivity factors can be used in EMC design and optimization. Originality/value The proposed method is original in the sense of combining a polynomial chaos metamodel with a low-cost integral equation model to reduce the computational demand for the sensitivity study.

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Section: Introductionmentioning

confidence: 99%

Sensitivity analysis for automotive EMC measurements using quasistatic Darwin model

Bingler

Bilicz

Csörnyei³

2021

COMPEL

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“…According to this standard, the radio disturbance produced by the electronic components in a vehicle should be measured in the anechoic chamber to shield the noise from outside [5][6][7][8]. Figure 1(a) illustrates our specific implementation according to the general description in IEC/CISPR25.…”

Section: Introductionmentioning

confidence: 99%

Development of Low Cost Measurement System for Radiated Emission Evaluation

Huang

Chen²,

Feng³

et al. 2011

PIER Letters

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Abstract-In this paper, a low cost measurement system with high accuracy for radiated emission evaluation has been proposed. By combining the test data of the current probe at different positions on the harness, the measurement accuracy is improved compared with conventional single probe method. For the sake of high accuracy, a transfer function is built to map the relationship between anechoic chamber method and current probe method. Based on experiments for evaluation, the final estimation of radiated emission agrees well with the measured results in anechoic chamber. For the cases tested, the difference between the current probe method and the anechoic chamber method is less than 3 dB.

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Influence of Automotive Harnesses on Conducted Emissions

Cited by 2 publications

References 6 publications

Sensitivity analysis for automotive EMC measurements using quasistatic Darwin model

Sensitivity analysis for automotive EMC measurements using quasistatic Darwin model

Development of Low Cost Measurement System for Radiated Emission Evaluation

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