Parameter Analysis of the Series Hybrid Vehicle Propulsion System

A hybrid electric vehicle propulsion system in an off-road application can benefit not only for better mileage, but can also increase motor traction and vehicle power at the wheels. In some specific cases, the battery pack becomes a bottleneck in the system. Not all vehicle batteries can provide the required peak current and voltage to the drivetrain. This depends on battery size, terrain, driving speed, battery temperature and many other parameters. A generator can provide additional power when needed. In this paper the interaction between battery and generator is presented to show the advantages and limitations of the system.