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consumption but also on emissions, an aspect which remains difficult to
predict accurately using just an office simulation.
It extends the capability of a new or existing engine test system which is
equipped with real-time vehicle simulation functionality. It is complemented
with simulated electric hybrid components such as, for example, the e-motor,
the battery, other heavy electricity consumers such as HVAC systems and
most importantly the simulated hybrid control unit (HCU). To further improve
the results, it uses a newly developed driver simulation to improve
human-like driving behavior.
The simulated HCU and its freely definable operating strategy make it possible
to vary typical hybrid operating scenarios, such as electric boosting and
electric recuperation. Using a DoE approach, interdependencies between fuel
consumption and emissions based on the load point shifting strategy are
made clear and transparent. It enables you to find the optimum conditions
and the most effective operating strategies. In addition, analysis of further
key performance indicators like battery current throughput makes it possible
to also include such aspects to reach a robust and reliable control strategy.
A GLOBAL NETWORK OF EXPERTS
The solution was developed by a global AVL development team, covering a
range of multi-disciplinary needs and requirements. “We brought together
experts from Powertrain and Control Unit Development, Application Support,
Emission Measurement and Test System Development,” explains Mats
Ivarson, Chief Engineer Test Field Innovation and Operation. “Enabling the
right mix of people to work together towards a shared target in a defined environment
creates great opportunities to achieve new innovative solutions.”
Combining powertrain engineering know-how with instrumentation and
test system expertise allows the frontloading of hybrid development to be
realized on the engine testbed. It speeds up development work and lowers
the number of prototypes needed. This cuts costs and reduces development
time for us and our customers.
Considering multiple points of view from different development teams is the
AVL way to develop the most efficient testing solutions. This is all found
under one roof here at AVL.