ABSTRACT
This chapter will focus on the design principles of the engine/alternator system, the drivetrain control, and the energy and power capacity of the battery pack. In this chapter, the term “peak power source” will replace “battery pack” because, in hybrid electric vehicles (HEVs), the major function of the batteries is to supply peaking power, and they can be replaced with other kinds of sources such as ultracapacitors, flywheels, or combinations.
