Iveco Irisbus

Iveco Irisbus
at the
European Mobility Exhibition/Public Transport 2008
Irisbus Iveco, a major player in passenger transport on a European scale,
presents four vehicles at the European Mobility Exhibition/Transport
Public 2008, which takes place at the Paris Expo from 10 th to 12 th June.
The exhibits on a 610 m 2 stand are:
- Hynovis Concept, a Concept Bus that brings original solutions to the public
transport sector’s problem areas of the environment, accessibility, attractiveness
and productivity;
- Crealis, which is Irisbus’ response to the BHNS concept (High Service Level Bus)
aimed at improving mobility by a joined-up approach between infrastructure, vehicle,
operation and services;
- Citelis standard diesel.
A suburban Crossway LE is exhibited away from the stand but in the same hall.
(See page 9 for the specifications of the vehicle exhibits)
Hynovis Concept, an avant-garde prototype
The Hynovis Concept is intended to validate several technological innovations.
Its unique architecture enables it to accommodate 8% more passengers
compared to a conventional 12 metre bus, together with an overall weight
reduction of one ton, an unrivalled performance.
Its hydraulic hybrid power unit is also a European, even a world, first: it reduces
diesel consumption and CO2 emissions by 30%, and NOX emissions by 50%.
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The background
Hynovis Concept is the outcome of a French research project launched following a call
for bids by PREDIT (French National Programme for Research and Innovation in Land
Transport), funded by the ADEME (French Agency for Environment and Energy
Management) and the ANR (French National Research Agency), and given the seal of
approval by the Pôle de Compétitivité Lyon Urban Trucks & Bus (Lyon Urban Trucks &
Bus Competitiveness Centre). Irisbus Iveco is the holder of this project.
Hynovis Concept is the result of a partnership with the RATP (Paris public transport
authority), who defined the operating specifications governing the development of the
project and who carried out the experiments, the INRETS (French National Institute for
Transport and Security Research), who prototyped the hybridization and auxiliary
systems, Michelin, who studied and supplied the tyres, Poclain Hydraulics who studied
and supplied the hydraulic hybridization components, and Altair Engineering France
for the optimisation and structural weight reduction calculation.
The concept was developed on a 12-metre diesel vehicle, an element of the vast
majority of present-day bus fleets.
The originality of Hynovis Concept consists of taking a fresh look at the concept
prevailing up to now with regard to buses.
To improve in particular its environmental performance, Hynovis Concept focused on
the simultaneous correction of two deficiencies:
- reducing its polluting emissions;
- increasing its carrying capacity (so as to divide the emissions by a larger number of
passengers).
This approach is unique, because a characteristic feature of the majority of the hybrid
bus projects suggested at present is a significant increase in the weight of the
vehicles, thus reducing their passenger-carrying capacity.
A substantial weight gain thanks to a special architecture
Hynovis Concept has a twin steering axle fitted with low-profile tyres, allowing the
central corridor to be enlarged to 1200 mm alongside the front wheel housings
(compared to 900 mm for a standard bus).
This configuration greatly eases the movement of passengers at the vehicle entrance
and considerably increases the free flow of the operation, reducing waiting times at
stops. This leads to an increase in running speed, a particularly attractive factor in the
public transport sector, because it is known that the frequency of use of buses
compared to that of the motor car increases greatly when their running speed rises.
Thus the environmental performance which is down to the architecture of the Hynovis
Concept doubles as a result of its increased operating efficiency.
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Its four small steering wheels eliminate the front seat access walkways. There is a
double benefit for those with reduced mobility since access to these seats is easier
and the risk of falls during the vehicle’s acceleration and braking stages is reduced.
The drive axle is located under the rear bench, eliminating the wheel housing and
releasing a long platform free from any steps, thus allowing optimum furnishing and a
passenger capacity increased by 8% compared to a standard bus.
Michelin has developed tyres with an improved rolling coefficient especially for the
Hynovis Concept with a three-fold aim:
- responding to the vehicle’s novel architectural concept;
- improving the environmental performance of the tyres;
- allowing a one-ton increase in payload compared to a conventional bus, to increase
passenger capacity.
The load-carrying capacity is improved thanks to the “Michelin Durable Technology
Infini Coil” technology, which enables an 8% reduction in the average rolling
resistance of the tyres.
Hynovis Concept shows a weight reduction of 1 ton despite being equipped with a
hybridization system, thanks to a reduction in the weight of the metal architecture and
the installation of an engine with a smaller cylinder capacity (Iveco Tector).
This weight reduction by one ton compared to a conventional bus is one of the major
features of Hynovis Concept, since weight is one of the main causes of overconsumption
by a bus.
This weight gain also allows the carrying capacity to be increased by 9 passengers
according to the standard homologation conditions, which equals 8% of the capacity of
a 12 m bus.
Hydraulic hybridization
Hynovis Concept is fitted with two hydraulic systems: a stop-start starter and a braking
energy recovery system.
The stop-start combines two functions:
- stopping the engine while the bus is stationary, and restarting it rapidly (within 0.3
second) before it moves away again;
- supplying the auxiliary systems while the engine is stopped, using an innovative
electricity storage device via a mixed system combining batteries and supercapacitors.
The braking energy recovery system relies on hydraulic motor-pumps. Linked to a
hydro-pneumatic accumulator, it enables braking energy to be recovered and re-input
during acceleration.
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Hydraulic technology was chosen because it currently has a very competitive cost
price compared to competing hybrid technologies, while still showing very similar
efficiency.
A 30% reduction in CO2 emissions
The 30% reduction in CO2 emissions by Hynovis Concept is composed of:
- hydraulic hybridization: - 23% (of which 8% is for the stop-start and 15% for the
motor-pumps);
- 1-ton weight reduction: - 5%;
- tyres with improved coefficient of resistance: - 2%.
As for the emissions of nitrogen oxides, NOx, these are reduced by 50% thanks to the
stop-start.
Visual, acoustic and climatic comfort
To break the psychological barrier that makes using a car preferable, Irisbus Iveco has
made great efforts to implement an innovative design incorporating exceptionally large
areas of glass.
Lowering the bottom line of the window openings and adding a glazing in the roof (on
the right-hand side of the vehicle) allows a 20% increase in glazed area, providing an
even greater all-round view of the urban landscape.
Significant improvements were made in vibrational and acoustic comfort. Hynovis
Concept is the first bus to be fitted with fully independent, fully steering wheels, both at
the front and at the rear. This solution allows standard turning and swept circle radii to
be maintained despite the increase in the wheel-base.
Comfort is significantly improved thanks to the reduction in the unsprung masses and
the independent damping on the right and left wheels, which reduces vibrations and
shocks inside the vehicle.
The acoustic insulation was given special treatment, made easier by the design of the
rear engine section. The use of an engine with a small cylinder capacity (6 litres)
achieves a reduction of 6 dB in external noise.
An inertial air-conditioning system using a liquid coolant was developed for Hynovis
Concept.
This allows a 50% reduction in the weight of refrigerant fluid and a 25% reduction in
energy consumption by this auxiliary equipment.
This increase in efficiency more than compensates for the increase in the vehicle’s
window area.
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Irisbus Iveco’s reply to the BHNS concept: Crealis
Urban transport is undergoing a profound change. Having become an instrument of
urbanisation and social harmonization, it occupies a place at the heart of the problems
of future sustainable urban development.
The concept of the BHNS (High Service Level Bus), a real way to smarten up and
enhance the value of an urban transport network, is a candidate for a strategic choice
for a town to make in favour of a global system rather than just an investment in rolling
stock.
In this context Irisbus Iveco has developed Crealis, based on the Citelis bus, to
provide a solution that is both innovative and competitive:
• for service, optimising the idea of comfort and passenger information in a modern,
welcoming interior atmosphere;
• with a strong image of a vehicle with a personalised design and profiting from
being very easy to fit into a town.
Crealis is designed for use in traffic on a dedicated site (bus lane) or on a potentially
high passenger volume route, considerably improving the quality of service
(frequency, passenger flow, regularity). The development of dedicated sites or high
volume routes is the essential key to better mobility. Freed from motor car congestion,
the vehicles consume less, improve their environmental performance, provide superior
comfort to the customers, and, above all, offer a much better running speed that is
likely to draw car users towards public transport.
Crealis is developed and industrially manufactured entirely by Irisbus Iveco.
The vehicle’s personalisation takes concrete shape:
- on the front surface as a straight windscreen (from the Citelis bus) or a special
sloping windscreen (here, the vehicle is called the Crealis Neo);
- through the following optional fittings: wheel-covers, glazed low-level windows
gaining an additional opening on the town, and optical guidance developed in
conjunction with Siemens Transportation System.
A superior quality service
Compared to a standard route bus, Crealis unquestionably represents a noticeable
leap forward in quality that strengthens its image and is immediately recognizable as a
superior quality service. Its performance immediately appears to be higher because its
external shapes suggest dynamism and free flow and convey the idea of travel that is
faster, more regular and more reliable.
This level of performance is combined with a superior level of comfort. On board,
Crealis offers a welcoming layout that is roomy and well-lit, a good opportunity to sit
down and relax. The use of quality-enhancing materials that are warm and natural,
such as wood, contrasted with high-tech notes such as metallic grey and metallic
charcoal grey, provides an atmosphere that is both stimulating and calming at the
same time.
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Crealis was developed around concerns about accessibility for all. Its floor is low and
flat throughout and it is fitted with sliding doors, allowing better free flow for those
entering/alighting, while at the same time improving accessibility for persons of
reduced mobility, passengers with a push-chair, wheelchair users, etc.
It can be fitted with a Siemens optical guidance system that guarantees optimum
precision when pulling up at stops.
Crealis offers travellers maximum comfort at off-peak times and reduced discomfort
during rush hour, thanks to a variety of passenger positions and thus postures, which
enables them to optimise the combination of journey time/use of this time/place in the
vehicle. The standing room has greater value, not as space remaining when all the
seats are full, but as a zone occupied voluntarily and by choice to enable a
supplementary activity to be carried out (reading, face-to-face or phone conversation ,
using a personal communication device, listening to music, etc.).
To benefit more fully from the town and public space, Crealis can be fitted with glazed
roof hatches and additional windows in the vehicle’s lower sides, as well as other
layouts supplying yet more light.
Crealis incorporates various forms of information media (static and dynamic, visual
and audible), enabling passengers to improve their journey organisation and to better
anticipate their stop, but also to inform them of the nature of possible traffic problems,
the effects on their journey, and opportunities to continue their journey.
For those organising authorities and urban networks who want to avail themselves of
environmental performances that are higher than just the regulations currently in force,
Crealis can be fitted with an EEV (Enhanced Environmentally Friendly Vehicle) power
unit whose outstanding environmental footprint is above that of Euro 5 which will come
into force in 2009. Crealis is also designed to incorporate new clean forms of energy
as and when these are implemented.
Nîmes, Paris and Maubeuge choose Crealis
The Nîmes BHNS (High Service Level Bus) will be operational in 2010. It will consist
of a 6 km route operated by eight articulated Crealis.
The Maubeuge BHNS comprises three routes totalling 28 km. The first of them will
come into service in December 2008. The plan is to use eighteen 12 metre Crealis
and two articulated Crealis.
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For the contract signed with Irisbus Iveco to supply 120 to 170 articulated buses, the
RATP specified a High Service Level variant that will be deployed to promote and
work in conjunction with certain bus network development projects. This variant will
incorporate the most innovative technologies in the passenger information area.
Particular care has also been devoted to the interior design and comfort of this
vehicle, as well as to its exterior design, particularly as a result of a special livery to
enhance the value of the service offered to passengers compared to a standard bus
route. Through an increase in running speed, greater frequency, improved regularity
and punctuality and an increase in the hours of service, which will enable better
connection with other transport systems, the BHNS represents for the RATP a
genuine response to the needs of passengers and regions.
Note: The photo of the RATP BHNS attached to this press release (cf. the “Photos” file) shows a
vehicle whose livery is a style study and does not correspond to the final version.
N.B.: See also the specific file “BHNS Design” attached to this press release.
Citelis, a complete range for every need
So much effort which is quite naturally in keeping with a viewpoint of sustainable
development and environmental conservation.
With its Citelis range, Irisbus Iveco offers authorities organising public transport, and
operators, a very wide range of choice between:
- a standard bus (12 m), an articulated bus (18 m) and a short version (10.50 m);
- various energy sources: Euro 4 and Euro 5 diesel engines, EEV, natural gas
engine, electric motive power.
In the diesel version, these vehicles with an exceptional environmental balance sheet
already correspond (as an option) to the European EEV label which is already beyond
the Euro 5, set to come into force in 2009.
The CNG (Compressed Natural Gas) version of the Citelis represents today’s true
clean alternative to diesel while waiting for future technologies such as the fuel cell.
Being “cleaner”, when natural gas is burnt it emits less carbon monoxide than diesel,
no sulphur oxide and very little nitrogen oxides.
Irisbus Iveco has been active in natural gas technology for about fifteen years and
confirms its position as leader with close to 4000 CNG buses sold worldwide.
Very large fleets have been built up in France, Italy, Spain and Greece.
Due to its stoichiometric technology, the Iveco Cursor 8 CNG engine emits a
particularly reduced level of emissions, conforming to a large extent to the European
EEV (Enhanced Environmentally Friendly Vehicle) label.
The very low noise level of the Irisbus Iveco natural gas bus is appreciated both by
passengers and by the public.
In its different versions, Citelis is recording a very great success in Europe and is
making a decisive contribution to the position of co-leader that Irisbus Iveco occupies
on the urban markets of the enlarged Europe of 27 countries, with a penetration of
17.9% in 2007.
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Crossway LE, the low-entry suburban and inter-city vehicles
Crossway LE, the Low Entry version of the Crossway intercity coach, is available in
two lengths: 12 m and 12.80 m.
The Crossway LE, a low-floor bus at the front and a high-floor coach at the rear, is a
vehicle that is particularly well positioned in terms of quality/price ratio to meet,
according to the markets, the needs of suburban or inter-city transport requiring a
mixture of “high accessibility / maximum capacity in seating”.
The footboards at the front and centre are 320 and 330 mm respectively from the
ground, guaranteeing perfect accessibility to enter and alight from the vehicle,
especially for passengers with reduced mobility. This front section enjoys an interior
height of 2.565 m; it can be configured in terms of seats/standing room depending on
the operator’s needs. As an option, the central entrance can be equipped with a
retractable ramp to simplify access for a wheelchair user.
After the centre door, two inside steps allow access to the rear section, whose floor is
at a height of 980 mm from the ground; this section accommodates only seated
places. The minimum interior height is 1.925 m.
Various front and centre door options are offered: a simple 800 mm door with one or
two door leaves, or a 1200 mm two-leaf door.
If there is a rear door, this provides a width of 800 mm and is available with one or two
leaves.
The Iveco Tector or Cursor Euro 4 engine (Euro 5 or EEV as an option), gearbox
(manual or automatic), rear axle, brakes and instrument panel of the Crossway LE are
identical to those of the Crossway coach, while the independent suspension front axle
and steering are borrowed from the Citelis bus. This standardisation of mechanical
components optimises reliability and economy of operation.
Paris, 10 th June 2008
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Description of the vehicles exhibited
HYNOVIS
Length 12 m
Engine Tector 6 Diesel EEV
Power 162 kW - 220 hp
Gearbox Voith 6-speed
Places 18 seated places
CREALIS
Length 18 m
Engine Cursor 8 Diesel Euro 5
Power 280 kW - 380 hp
Gearbox ZF or Voith
Places 30 seated places + 1 location for a wheel-chair user
CITELIS 12
Length 12 m
Engine Cursor 8 Diesel Euro 5
Power 213 kW - 290 hp
Gearbox ZF or Voith
Places 26 seated places + 1 location for a wheel-chair user
CROSSWAY LOW ENTRY
Length 12 m
Engine Cursor 8 Diesel Euro 5
Power 243 kW - 330 hp
Gearbox ZF or Voith
Places 45 seated places + 1 location for a wheel-chair user
______
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Iveco
Iveco designs, manufactures, and markets a broad range of light, medium and
heavy commercial vehicles, off-road trucks, city and intercity buses and coaches
under the Irisbus brand as well as special vehicles for applications such as fire
fighting, off-road missions, defence and civil protection.
Iveco employs over 26,000 people and runs 27 production units in 16 Countries
in the world using excellent technologies developed in 5 research centres.
Besides Europe, the company operates in China, Russia, Australia, Argentina,
Brazil, and South Africa.
More than 4,600 service outlets in over 100 Countries guarantee technical
support wherever in the world an Iveco vehicle is at work.
For any additional information, please contact
Nicolas TELLIER
Irisbus Press Relations
Tel.: +33 (0) 1 30 66 81 46
E-mail: nicolas.tellier@irisbus.iveco.com
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