Modern High Voltage Drive Train Architecture to Accommodate the Needs for a Variety of Components for Future Automotive Applications

We can see a variety of different concepts in prototypes and series programs. In HEV drivetrains with power-split architecture, the use of a DC to DC boost converter between the high voltage battery and the voltage source inverter is widely spread for years. Though often discussed, a boost converter in a parallel hybrid (HEV) or pure electric vehicle (EV) drivetrain architecture has no break-through yet. By introducing a high voltage DC to DC converter to the (H)EV architecture, an additional degree of freedom is added to the system design. That can be used to develop new drivetrain concepts to improve efficiency of components, energy management strategy, system costs and add additional benefits for customers. The presentation will take a closer look at the effects and opportunities of a high voltage DC/DC converter for the overall drivetrain architecture.