▲Yeon Gyu-bong, a senior researcher at the Korea Automobile Research Institute, is giving a presentation at the 2022 Analog Day event.

Senior Vice President Yeon Gyu-bong emphasizes the importance of achieving EMC.
Strengthening industry cooperation is necessary to achieve EMC.

Experts have suggested that meeting EMC standards is essential for achieving Level 5 autonomous driving.

At the 2022 Analog Day held by e4ds news on the 20th and 21st, Yeon Gyu-bong, head of the AI Semiconductor Research Center at the Korea Automotive Research Institute, presented on the topic of electromagnetic interference and EMI shielding issues in electrical components.

Senior Yeon addressed the following issues: △Electromagnetic wave issues in electric/autonomous vehicle electronic systems, △Automobile EMC standards, △EMC issues in in-vehicle networks, and △Application EMC issues.

Modern automobiles are rapidly transitioning from internal combustion engines to electric vehicles, including hybrids, battery electric vehicles, and hydrogen electric vehicles. Demand for electric vehicles has surged, particularly following the COVID-19 pandemic, as people increasingly avoid public transportation.

Currently, hybrids are in the process of converting the existing power system to 48V, up to 800V within the main battery. In addition, hydrogen fuel cell electric vehicles have been delayed in their spread due to issues such as economic and material problems, but they will receive attention in the future when environmentally friendly factors are taken into consideration.

Accordingly, the risk of electromagnetic radiation from components is increasing. In particular, interfaces are connected to networks, and various electromagnetic issues arise during voltage boosting.

Senior Researcher Yeon presented a roadmap for autonomous vehicles (sensors), noting that the number of sensors used increases with increasing vehicle levels. He explained the sensors and semiconductors used in vehicles for Levels 1 to 5, emphasizing that sensors connected to and communicating through in-vehicle networks must meet EMC (electromagnetic compatibility) and radiation characteristics standards.

He also mentioned that the company has currently achieved autonomous driving level 3, is developing to meet levels 4 and 5, and is resuming work this year to meet specific challenges.

Level 5 must satisfy ASIL D, meaning it must be able to maintain functionality without issues under any conditions. In the future, it must satisfy all the following functions: fail silent (stop operation when a problem occurs), fail safe (enter safe mode when a problem occurs), and fail operation (perform other functions even when a problem occurs).

Senior Researcher Yeon ultimately emphasized that it would be difficult to achieve Level 5 without meeting EMC regulations.

In the latter half of the lecture, Senior Professor Yeon discussed automotive applications such as cars, sunroofs, LEDs, and lidar, and once again emphasized the importance of achieving EMC regulations in these autonomous vehicle communication issues.

Lastly, Senior Vice President Yeon emphasized that EMC issues are becoming more important with the transition to electric and autonomous vehicles, and that it is important to secure EMC integrity technology for automotive EMI shielding issues, and that it is important for companies to work together to ensure the safety of the public.