Optimal Energy Management for Mild Hybrid Operation of Vehicles with an Integrated Starter Generator
2005 SAE World Congress, no. 2005-01-0280, 2005
Author(s): | Steinmaurer G., del Re L. |
Year: | 2005 |
Month: | 4 |
Abstract: | The proposed vehicle structure with an integratedstarter-
generator (ISG) and the possible change of the
net voltage offers substantial opportunities for energy
and thus fuel saving at several levels or increased
dynamical performance. However, the arrangement of
two power sources - combustion engine and the ISG -
brings more complexity in the system and makes it
necessary to control the power flow of both sources,
which has to be done by an energy management
system.
This paper describes possible changes in the powertrain
setting and a systematic approach for the design of an
energy management system without using heuristic
design rules. Measurement results on a dynamical test
bench for the FTP-75 emission test cycle confirm the
increased fuel economy and an adequate battery charge
level. |