Revision 1.0 - 12/08/2013
10
The Wrightbus NBFL has an efficient 4-cylinder
turbo-charged diesel engine that is used to
charge the hybrid batteries. The engine
emission control system utilises a reagent
(Adblue/Urea) to meet the requirements of
euro 5 engine emission legislation.
The hybrid batteries power a direct drive
electric motor into axle.
The air operated braking system is powered
by means of an electrically driven compressor
supplying air to reservoirs through an air dryer.
The air dryer also regulates pressure. Service
One and Service Two reservoirs each supply a
separate system for the front and rear brakes.
The park reservoir supplies the spring
actuated, air released rear brakes.
The auxiliary reservoirs supply the air suspension
and body services such as the doors.
General
An electrically driven power steering pump
is located under the driver, accessible
through an exterior side access panel.
The front suspension is an independent
wishbone system, supported by air springs
and controlled by hydraulic dampers.
The rear suspension system consists of a
drop centre axle located by radius rods and
supported by air springs and controlled by
hydraulic dampers.
The 24 volt multiplex electrical system uses
a 600 volt DC / DC converter to charge the
24 volt battery from the 600 volt battery.
An electronically controlled air suspension system
is installed which allows a kneeling system to
operate.
Caution
It may be an offence to use a vehicle
that does not consume reagent (Urea)
if it is required for the reduction of pollutant
emissions.
The use of a reagent (Urea) is mandatory
for this vehicle in order to comply with the
certificate of conformity.
Emissions - Diesel Engines 2005/55/EC/6.5.2.5/6
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