instrumentation and test systems
A NEW APPROACH
TO HYBRID
DEVELOPMENT
REDUCING THE NEED
FOR PROTOTYPE
VEHICLES BY MAKING
THE RIGHT DECISIONS
IN EARLY DEVELOPMENT
PHASES
1 6 J U LY 2 0 2 0
EXISTING ARCHITECTURE – NEW IDEAS
At AVL we have been working to offer a more economical alternative. The
aim is to cover most of the emission-relevant and drivability topics without
the need of a vehicle. Our solution uses the existing engine testbed infrastructure
combined with our simulation capabilities as a bridging element
between the office and the vehicle development environment.
“We have specifically designed the solution to be as simple to implement as
possible,” explains Harald Mayrhofer, Application Manager Business Unit
Powertrain Test Systems. “We want our customers to be able to integrate
it into their existing workflow with minimal effort.”
The solution has already delivered
good results. It uses vehicle simulation
in combination with hybrid
system simulation on the engine
testbed. A key benefit to using
the engine testbed in this way is
the possibility of measuring real
fuel consumption and, most importantly,
real gas and particulate
emissions. It enables you to test
and optimize your hybrid control
strategy’s impact not only on fuel
Today’s automotive industry is
moving rapidly towards environmentally
friendly vehicle propulsion
systems. All over the globe, legislative
CO2 consumption targets are
under discussion – and are already
in force in many places.
Hybrid powertrain configurations
reduce fuel consumption and limit
pollutant emission when compared
to pure IC-Engine powertrains.
Depending on the boundary conditions
a wide range of different hybrid
topologies and control strategies
are possible.
A typical task in hybrid development
is to find the optimal layout
and the corresponding control strategy.
A common approach is to perform
these tasks in the office modeling
environment and proceed
directly to the testing of the control
strategy with the vehicle on the
chassis dyno and on the road. This
approach depends on a high number
of prototype vehicles and chassis dynos.
Both are becoming less available
and both are driving costs higher.