The compromise must be based on understanding. Engineers should all be familiar with the compromise associated with good engineering. The EMC design of such a complex system requires lots of compromises. This paper focuses on the EMC challenges of EDU design. In addition to the size, cost and performance challenges, automotive design engineers are now facing the ever-challenging thermal and EMC requirements. These specifications include function, mechanical, environmental, electrical, electromagnetic compatibility (EMC), functional safety, and more. For key differentiator components such as the EDU, the battery pack, and software integration, it is often in the OEMs’ own interests to keep the design in house, which gives them an advantage over their competitors.įor automotive applications, all components must be designed to meet OEM’s unique design specifications. The suppliers, when receiving the product specification and requirement, design the bespoke parts for the OEMs. The OEMs often outsource components of a vehicle to Tier-1 suppliers allowing them to focus their resources on vehicle system integration and manufacturing. In this case, the transmission is sandwiched between an electric motor and the power electronics module. The three-in-one EDU from Bosch is shown in Figure 1 . This is often referred to as the three-in-one unit. The beating heart of an EV is its electric drive unit (EDU), also referred to as powertrain, which consists of an electric motor, a power electronics module, and a transmission. With Tesla leading the market, followed by traditional vehicle original equipment manufacturers (OEMs) such as Volkswagen, PSA, and Toyota, to name just a few, the electrification of the automotive industry has been advancing at a fast pace . The past decade has witnessed both a leap forward in technology and market expansion of the global electric vehicle (EV) industry .
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