Truck & Off-Highway Engineering - August 2021 - 5

TECHNICAL INNOVATIONS
UNIVERSAL
TOOLBOX FOR
WORKSHOP TESTER
BY SOFTING
The Hydrapulse unit comes in power levels " well over " 100 kW, including
custom units up to 300 kW. Utilizing these units in series or parallel can
produce more than 1,000 kW of hydraulic work output.
make the system flexible enough to address this high degree
of diversity to have widespread adoption.
" We can address almost any size of vehicle by utilizing either
a single or multiple Hydrapulse system as the prime mover, or
as a distributed pump system where one Hydrapulse is dedicated
to one work function, similar to how a CNC machine has
one servo motor per axis, " Terzo explained.
The company can produce any single Hydrapulse unit in
power levels " well over " 100 kW (134 hp), including custom
units up to 300 kW (402 hp). By utilizing these units in series
or parallel, Terzo can produce more than 1,000 kW (1,341 hp) of
hydraulic work output, which addresses the vast majority of
vehicles in the off-highway industry, he said.
What makes the Hydrapulse system unique compared to
other electrohydraulic offerings is its full integration, according
to Terzo. " We incorporate the pump, motor, control electronics,
J1939 communications, motor inverter, connectors,
HVIL [high-voltage inter-lock], etc. all into one package that
is fully tested as a system before shipping to the customer, "
he said. " What some may call a complete system usually requires
an external inverter drive to control the motor, or they
need to provide external liquid cooling, or you need to add
hydraulic valves or even add your own pump. "
The liquid cooling is one of the more important aspects
that is often overlooked, Terzo said. His team spent years
working out the details. " Our motor and control electronics
are liquid-cooled with the hydraulic oil itself all internally, so
the customer does not need to provide the additional cost,
connections, hoses and cooling system to support the system, "
he explained.
With any new technology comes limitations and/or tradeoffs.
With the Hydrapulse system, there are two main limitations,
according to Terzo. " For most electrification efforts by
TRUCK & OFF-HIGHWAY ENGINEERING
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and Repair
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and Flash Programming
Integrated Data Security
and User Management
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Truck & Off-Highway Engineering - August 2021

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