Modelling and cosimulation of an automotive power management system

This work describes the development of a system model
of a power management system for hybrid-electric
vehicles. An extensive survey about hybrid-electric
vehicles in general and their differences to common
vehicles is given. In addition, advantages of
model-based development are outlined and several
model-based approaches regarding power management in
automotive systems are presented and evaluated.
The system model is modeled as
a multi-level heterogeneous closed-loop, which
contains a high level controller and a low level
controlled system. The controller corresponds to
the Electronic Control Unit, which is normally used
for power management. The controlled system
constitutes the vehicle electrical system of a
hybrid-electric vehicle. The heterogeneous system
property facilitates a high-level description of the
controller as a state chart by means of MATLAB s
Stateflow toolbox, whereas the controlled system
is completely modeled with the hardware description
language VHDL-AMS on lower level with high
accuracy.The simulation of the heterogeneous
structure is carried out by a cosimulation with
the tool SyAD.
Finally, the cosimulation results are
analyzed precisely.

Autorentext

Dr.techn. Christoph M. Kirchsteiger received his Bachelor's andMaster's degree with distinction in Telematics (ICT: Informationand Communications Technology) from Graz University ofTechnology, Austria, in 2006. In 2006 he started a PhD inElectrical Engineering in Austria which he finished withdistinction in June 2009.

Klappentext

This work describes the development of a system model of a power management system for hybrid-electric vehicles. An extensive survey about hybrid-electric vehicles in general and their differences to common vehicles is given. In addition, advantages of model-based development are outlined and several model-based approaches regarding power management in automotive systems are presented and evaluated. The system model is modeled as a multi-level heterogeneous closed-loop, which contains a high level controller and a low level controlled system. The controller corresponds to the Electronic Control Unit, which is normally used for power management. The controlled system constitutes the vehicle electrical system of a hybrid-electric vehicle. The heterogeneous system property facilitates a high-level description of the controller as a state chart by means of MATLAB's Stateflow toolbox, whereas the controlled system is completely modeled with the hardware description language VHDL-AMS on lower level with high accuracy.The simulation of the heterogeneous structure is carried out by a cosimulation with the tool SyAD. Finally, the cosimulation results are analyzed precisely.