PRODUCTS & SERVICES
Lenze Mobile System ensures
effi ciency in e-buses
www.electrichybridvehicletechnology.com // July 2019 // 217
Modular product platform for customized solutions
With the Mobile modular
platform from Lenze Schmidhauser,
manufacturers can quickly create
a custom-made system for the drive
control of auxiliary units and the
provision of energy for the onboard
power supply by simply choosing
standardized products from
a catalog. The portfolio includes
intelligent double inverters (DCU),
DC-to-DC converters (PSU) and
various dual-purpose modules,
all specially designed for use in
commercial vehicles. The set
of modules is proven in series
production and continually extended
– the newest addition is the DCU
Single Inverter S for the control
of air-conditioning systems and
compressors.
The double inverters are equipped
with two motor or generator
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Delivering zero emission transportation in demanding environments
The United States Forest
Service recently announced its
commitment to the introduction
of clean, sustainable electric
transportation to help preserve
contract to Regional Partnering
the environment and enhance
Center (RPC), to provide a fl eet
the visitor experience at Sabino
of zero-emission, open-air,
Canyon, Arizona. To facilitate the
62-passenger trams. RPC teamed
introduction of environmentally
with Trams International, a
responsible transportation,
leading USA tram manufacturer,
the Forest Service announced
on the project, which included
it was awarding a fi ve-year
a demanding duty cycle on a
route featuring steep grades and
several water crossings. Trams
International worked closely
with Transfl uid to provide key
drive system components for the
project. Transfl uid is a 60-yearold
company that designs and
produces hybrid and full-electric
transmission systems. The
complete transmission system
installed on trams is fully electric,
features a permanent magnet
e-machine supplied through a
dedicated traction inverter, has
a high-energy LiFePO4 battery,
and is managed via CANbus and
control systems developed inhouse.
The e-machine is mated to
a gear and a clutch to transfer the
power to the wheels.
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outputs in the 7.5-60kWp power
range. They can be used to control
synchronous and asynchronous
motors (three-phase; with or without
an encoder) and are especially
suited for the control and operation
of auxiliary equipment such as
air-conditioning compressors, air
compressors and power-steering
pumps, or as smaller main drives (in
v/f or vector mode).
DC voltage converters are
available with 14V DC or 28V DC
output voltage and up to 200A of
current (up to 5.6kW power output).
They create a high-performance
onboard power supply system or
can be used as a replacement for
the alternator. For power-intensive
applications, multiple converters
can be connected in parallel. A
number of dual-purpose modules
combining a DC-to-DC converter
and a single inverter in one module
round up the offer. All the modules
are certifi ed in accordance with ECE
R10 and housed in uniform casings
(IP6K9K) with an identical structure.
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