Page 25 - Commercial Vehicle Engineer - October 2021
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 INNOVATION
  C ommercial vehicle electrification
specialist Equipmake recently launched
a state-of-the-art electric bus, Jewel E,
in partnership with Spanish coachbuilder Beulas, which boasts up to 250 miles of range – claimed to be the longest of any electric double decker in the world.
The Jewel E features a cutting-edge British-built electric powertrain designed and developed at Equipmake’s purpose- built facility in Norfolk, with the body produced by Beulas in Girona, Spain, and has been designed to meet Transport for London’s (TfL) tough new emissions measures that are set to come into force in 2024.
Equipmake believe its newcomer can help to meet the increasing demand for electric buses in the coming years, which is estimated to grow from 300,000 vehicles per annum today to one million by 2030. The Jewel E can also help the Government to achieve its target of introducing at least 4,000 more British- built zero emission buses into the UK market by 2024, through its Bus Back Better national strategy.
E-POWERTRAIN
Under the skin of the bus lies Equipmake’s advanced propulsion technology – Zero Emission Drivetrain (ZED) – which
is modular and scalable, capable of supporting different bus sizes. ZED is already being used in single decker form on the streets of Buenos Aires, Argentina as part of an Equipmake partnership
with Agrale.
Packaged according to specific
applications to optimise space for battery/ kWh, ZED now underpins Jewel E – the next step in Equipmake’s strategic plan
to grow its line-up of advanced electric powertrains and vehicles.
Integrated into the Jewel E chassis
ZED is the company’s HTM 3500 motor, which combines high torque with low motor speeds, and is fitted directly onto the propshaft negating the need for a separate gearbox.
Producing maximum torque of 3,500Nm at just 1,000rpm and offering maximum power of 400kW, it is driven by a Semikron SKAI inverter with energy stored in a variety of customer-specified lithium-ion battery pack options of up to 543kWh,
the largest battery of any single axle
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