The variety of models of electric vehicles is constantly growing, numerous funding opportunities for vehicle purchases and infrastructure measures are promoting electromobility. For vehicle developers, this means that questions about electromagnetic compatibility (EMC) are taking up more and more space in the development process.
Mooser EMC Technik GmbH in Ludwigsburg picked up on this trend early on and is now a recognized service provider for EMC measurements for OEMs such as Fiat Chrysler, Ford, GM, Jaguar Land Rover and Harley-Davidson and is a preferred supplier to the Bosch Group and is used by Kraftfahrt -Federal Office (KBA) designated as a technical service. A new highlight are four measuring cabins for the EMC analysis of powerful high-voltage electric drives and electrically driven ancillary units. With a drive and braking power of up to 250 kilowatts, voltages of up to 1,000 volts and currents of up to 500 amps, these eCHAMBER® are suitable for EMC tests on powerful electric motors, as well as for inverters, gearboxes, hybrid gearboxes and clutches , output shafts and axles.
Of course, this eCHAMBER® and the other modern test facilities from Mooser are accredited according to DIN EN ISO/IEC 17025. This voluntary standard is primarily about the effective and reliable integration and compliance with the quality management system in the laboratory. In detail, this means the qualification of the devices used and the validation of the methods carried out with regard to their accuracy, robustness and reproducibility. A prerequisite for the professional execution of the tests is the optimal training and high level of competence of the approximately 50 employees at Mooser.
The new version of DIN EN ISO/IEC 17025:2018 published in March 2018 shows numerous changes: for example in the structure, the new process orientation, the treatment of opportunities and risks and overall in the much clearer reference to the recently revised quality management standard ISO 9001. Mooser then immediately converted its two laboratories in Ludwigsburg and Egling to the content and requirements of the new standard. A great support in this process was Susanne Kolb and her laboratory consulting company “LaborConsultingGenius GmbH”. Thanks to her extensive experience in laboratory consulting, the processes were converted in accordance with the standard and the subsequent accreditation of the two laboratories according to DIN EN ISO/IEC 17025:2018 by the German Accreditation Body (DAkkS) was awarded the top mark “zero deviations” in the system and specialist assessment closed. This ensures that Mooser continues to provide technically competent laboratory results for all measurements relating to the topic of EMC and thus ensures their international acceptance. This applies, for example, to battery residual AC voltages, the shielding of materials and components, the determination of interference immunity distances between two EMC-critical electrical components or the analysis of medically relevant magnetic fields.
