How the Testbed
Handles Oscillations
Why TB503 is a Winner
with Customers
Oscillations are a major issue for propulsion systems and
are one of the key challenges for engineers when it comes to
ma\imi^ing eƾciency, TerJormance and reliaFility. 8Le 8&
overcomes these challenges by allowing the vehicle to vibrate
freely to ensure the same handling as on the racetrack.
In order to achieve this response, the wheel dynos need to
have very low inertia (in the magnitude of a real wheel). This is
the only way to allow those oscillations to occur. In addition,
the vehicle dynamics simulation must react to every change
made to the car. One example: if you increase the grip of
the tires - even if only by a few tenths of a percent - the car
would drive differently on the testbed because the grip is also
virtually adjusted. This results in different top speeds and
corner speeds. The same applies to the aerodynamics: If you
change the downforce of the car on the testbed, the effects
of the changes are immediately visible virtually in the vehicle
dynamic simulation.
The major advantage of the TB503 for motorsport teams is
maximum reproducibility in a fully controlled environment.
Thanks to the integrated vehicle dynamics simulation, teams
and drivers can immediately see the effects of changes on
tLe real veLicle and significantly imTrove tLeir laT times.
Every change to the vehicle (such as grip level of the tires,
aero characteristics, MGU power, and so on) translates into
different handling and can be seen immediately in the data
and in lap times.
Using testbeds to develop and optimize has been common
practice in motorsport. AVL is the market leader for all types
of testbeds for the Motorsport industry. The TB503 is the
ƽagsLiT solYtion and Las taOen testing to tLe ne\t level.
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