TechDay CEM - R&S et UTAC

Présentation en français et anglais

Since June 2025, it is possible to apply the new release of UNECE R10. Several major modifications have been added in this new version, among them, the most noticeable, the immunity extension to 6 GHz.

The presentation will go through R10.07 and presents the main evolutions and associated impacts for the people intending to homologate their 2 / 3 or 4 wheel cycles, passenger cars, vans, bus, trucks, trailer, agricultural vehicle and all vehicle covered by R10.

Présentation en français

ADAS functions are strongly emerging in automotive industry and their performance regarding EMC is becoming a major concern to secure the functional safety of the vehicles. The testability of these functions is consequently at the center of discussions in international standardization committees. The different and complementary approaches considered there will be exposed in this presentation.

Présentation en français

EMC automotive testing is rapidly advancing towards the Reverberation Chamber (RC) method. In this respect, this presentation will start by outlining the principle of operation of RCs as well as their strengths and weaknesses compared to the already well established anechoic chambers. Additionally, updates on the adoption of RCs from EMC standards will be discussed with emphasis on the newly published ISO 11451-5 standard (Radiated immunity full vehicle testing). The latter publication introduces a new closed-loop power control technique (fast-stirring) which is of special interest and will be addressed, followed by chamber use-cases fulfilling the requirements of this particular test method."

Présentation en anglais

The electromagnetic emissions generate by vehicles change substantially during dynamic driving conditions leading to situations in which the radiated emission limits are surpassed. Very often, these signals show different behavior and manifest themselves differently based on the vehicle ‘s technologies (e.g. BEV, PHEV, FCEV). The presentation provides experimental evidence of various kinds of signals emitted during accelerations, decelerations as well as at different constat speeds.

Présentation en anglais

With the development of electrified powertrains and ADAS/AD fulfilling EMC requirements becomes more and more challenging.  This is mainly driven by the fact that conducted and radiated emissions from electrified vehicles are speed and load dependent. Dynamic EMC-testing becomes mandatory.

Présentation en anglais

The automotive EMI standards CISPR 12, CISPR 25 and CISPR 36 are developing quickly to address the impact of electric and electric hybrid vehicles on the electromagnetic environment. This goes along with the demand to reduce test time and reliable recording of the disturbance characteristic of the device under test. Usage of FFT-based measuring instruments is the key for addressing these topics. The presentation will start with a short refresh on FFT basics from CISPR 16-1-1, will address the advanced aspects of modern EMI measuring receivers and will conclude with practical cases.

Présentation en anglais

Session de 25 minutes :

• Intérêt de la FFT large bande en application automotive
• Nouveaux moyens d'adaptation aux montages d'immunité : quel choix d’ amplificateur choisir pour exécuter un essai EMS en large bande et/ou avec du retour d’onde stationnaire ?
• Utilisation de la fonction waterfall dans les essais véhicule pied d'antenne
• utilisation de la surveillance vidéo dans les essais d'immunité véhicule