Modern automotive vehicles are filled with new and complex technologies. HEVs/EVs and electric auxiliaries are a strategic automotive industry focus due to the growing emphasis on air and noise pollution, both by consumers and governmental instances. These components and vehicles rely on advanced electronically-controlled systems working together across a wide range of operating conditions to ensure low cost efficient performance, safety as well as reliability. Evermore vehicles are therefore equipped with electronic components such as an electric motors/generators, power converters, battery pack, and associated controllers and sensors. Safe and reliable vehicle operation depends on the successful integration and verification of all these drive train components.