AVL E-Axle TS™ EMC – fixed
AVL ROADSIM EMC™
AVL E-Motor TS™ EMC – fixed (left) and mobile (right)
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ANALYSIS OF EMC RESULTS UNDER REAL-DRIVING-CONDITIONS
The behavior of components such as the e-drive changes depending on
different uses. This forces the testing operator to dodge steady state measurements
for real driving conditions. And EMC measurements with fixed
operating points, as in conventional internal combustion engine vehicles,
do not show the same effects as in the electrified vehicle.
Additionally, the EMC test setup comprises of the device under test (DUT),
the load simulation, conditioning systems and the EMC measurement
hardware and chamber. All these components have separate automation
and/or control systems for their operation, and must be interconnected
to measure their dependency to each other.
To tackle this we have collaborated with Rohde & Schwarz, a provider
of measuring and testing systems, on an exclusive solution for automated
EMC data analysis. The system works under real operating conditions of
an electric vehicle or any of its components.
AVL PUMA 2™ automation drives the test cycle and stores the measured
data, in sync with the R&S®ELEKTRA test software, which exchanges
information between the testbed and the EMC measurement equipment.
AVL CONCERTO™ post-processes
the measured data automatically,
delivering a full test report
according to pre-defined pass and
fail criteria. It supports automated
testing with simulation of real driving
conditions while covering typical
automotive standards. The benefits
include:
• Complete EMC results under real
driving conditions
• Reduced complexity of EMC
measurement procedure for components
and vehicles
• All test specifications and examinations
can be carried out depending
on the different DUT
and EMC parameters
• Synchronization of EMC measurement
and DUT operatingdata,
which shows the dependency
of the operating state and EMC
data, and the behavior of EMC
parameters depending on the operating
variables of the DUT
• Repetitive and deterministic test
procedures allow for fast comparisons
between testing cycles and
their visualizations
• Individual monitoring criteria can
be defined for any channels. Deviations
and violations of tolerance
bands are evaluated automatically
Our EMC test solutions guarantee
that the DUT is the only focus of
each EMC measurement. They also
reduce test setup complexity to ensure
that testing is safe, precise and
as time efficient as possible. This
empowers our customers in their
e-mission.