In this contribution, similarities and differences between electrical and thermal effects on cables are investigated. In the electrical transmission line theory, a wide variety of methods is known to describe the voltage and current along cables. The potential for the adaption of some of those methods to thermal problems is discussed. An example is given.

Test setups required for different immunity test methods based on ISO 11452-2 (ALSE) and ISO 11452-4 (BCI) are similar. However, lack of knowledge regarding the impedance of the tested component, makes it impossible to find the equivalent current to be injected by the BCI probe and a good match cannot be achieved. In this paper, three approaches are proposed to estimate the termination impedance indirectly by using different current probe.

Radiated electromagnetic fields from a PCB can be estimated when the source current distribution is known. From a measured near-field, the PCB source current can be found. Solving the given inverse problem with a system of linear equations and complex near-field data it can be very sensitive to noise. Regularization methods and an adjusted preconditioning can increase the accuracy. In this publication, an improved radiation model creation approach based on complex near-field data is presented.

A near-field measurement based pre-compliance method is provided for predicting emission below 30 MHz in a CISPR-25 test set-up. The Huygens principle by defining an unclosed Huygens' surface is applied for field prediction. Near-field measurements are only conducted for several locations over a table surface and a static electric field formula is used for field distribution estimation. The difference of the predicted E-field at 1 m distance is within 4 dB compared with full-wave simulation.

Continuously increasing requirements for onboard system performances lead to new topologies for the energy distribution in vehicles. One promising concept is the usage of a dual-battery system instead of the conventional lead-acid battery. The conventional performance estimation method for standalone lead-acid batteries can no longer be applied to this system. Therefore, a new algorithm for the voltage drop calculation of the dual-battery system is proposed.