In the pursuit of full electrification in the automotive sector, components of vehicular systems have seen a notable shift, with the replacement of conventional mechanical components for their electrical counterparts becoming commonplace. An example of this is the electric water pumps for cooling systems. In contrast, the adoption of electric oil pumps, while promising for enhanced efficiency, has been met with reservations due to the critical role of oil circulation in ensuring engine reliability. This study delves into this topic by conducting a comprehensive analysis of the hydraulic system within automotive contexts, applying a specific focus on electric oil pumps in electrical powertrains.