advanced simulation technologies
SIMULATION-BASED
OPTIMIZATION OF
ELECTRIC DRIVE SYSTEMS
With the software tools AVL FIRE™ M, EXCITE™ Power Unit and CRUISE™ M,
AVL offers a broad product portfolio that provides simulation-based support
for the numerical design and optimization of electric drive systems.
Electric drive systems in automotive
2 0 F O C U S
use must satisfy very specific
demands when it comes to
performance density, weather conditions
and operating loads. They
need to meet a full range of requirements
related to effi ciency, durability,
operating behavior and comfort.
To optimize drive systems in accordance
with defi ned criteria, the use
of simulation in development is indispensable.
Across the entire development process
– from concept design all the
way to integration – it is necessary
to perform a wide variety of calculation
tasks. The methods range from
simple analytic approaches to complex
numerical 3D calculations.
ELECTROMAGNETIC CALCULATION
AS STARTING POINT
The electric machine (e-machine)
is a key component of the electric
drive system. It is responsible for
the power conversion between electrical
and mechanical energy. The
process generates losses that are of
both electrical and mechanical nature.
On the one hand such losses
must be carefully determined in
order to perform thermal sizing,
on the other hand they have to be
reduced to a minimum to enhance
effi ciency.
The starting point of every detailed
electric machine analysis is an electromagnetic
calculation. AVL FIRE™
allows you to model the stator and
the rotor for different types of electric
machines. An electromagnetic
field calculation is generally performed
on a 2D cross-section model
for various current-feed conditions.
>
Diagram of individual
implementation stages
from CAD model to
AVL FIRE™ M simulation
to hardware