hydrogen 5 cylinder
(from Peugeot Press
Release) In 1998, the concept-car 20♥ was presented for
the first time. The enthusiasm it aroused among the public fuelled
the development of a new mass-produced car design: the Coupé /
Cabriolet. Combining vision and realism, the 206 CC - the
first vehicle in the “small car” segment to have a metal electric
folding roof - met with well-documented success and was then
followed in the higher segment of the Peugeot range by the 307 CC.
With the launch of the
207 hatchback, Peugeot’s designers naturally considered including a
“CC” version in the new range, and applying all their expertise in
the field of “vehicles styled for pleasure”.
With the “207 Epure”
concept car, the Marque for the one part lifts the veil on a
tangible future product.
However, its personality is twofold: in addition to twin coupé /
cabriolet adaptability, this styling blueprint also conceals an
example of future fuel cell technology for a more distant future...
The experimental power
train that equips the 207 Epure includes the latest advances of the
PSA Peugeot Citroën group in this area, without any adverse affect
on the vehicle’s functional and stylistic features.
The spirit of freedom inherent in this design is therefore closely
bound up with the car’s method of propulsion: the ensuing benefits -
zero emissions, silent operation - which does much to enhance the
pleasure of driving the car as a cabriolet.
Both driver and car are
then truly at one with their environment. Pleasure and ecology are
The “pearl white” livery
highlights the purity of the concept car’s lines while symbolising
the ecological credentials of the technology that powers it. The
familiar, elegant and expressive design of the front of the 207, is
strengthened by its bold and flowing contours.
From the side, the high
waistline at the rear creates an effect which, combined with the
angle of the front windscreen and the “arch” of the closed roof,
enhances the car’s dynamic presence by creating a sense of movement,
even when it is stood still. The sculpting of the lower side panels
adds further to the overall personality of the vehicle. Its special
“Pitlane” alloy wheels strengthen the impression of a vehicle with
superb road holding.
circumvents the perimeter of the passenger compartment and includes
a bold styling feature, located on top of the boot lid, helping to
enhance the fluidity of the design of the rear of the car. Extending
from the boot lid, the rear spoiler, with its pronounced integrated
shape, blends harmoniously into the rear diode-effect lights.
Meticulous surface finishes, eloquent style lines and perfectly
balanced proportions give the vehicle the natural equilibrium,
elegance and dynamism sought after by its designers, whether it is a
coupé or a cabriolet.
The interior expands on
the theme of purity expressed by the exterior. The fascia panel of
the 207, originally smooth and fluid, is covered entirely with white
leather, as is most of the passenger compartment: the detailing, the
trim on all four seats, and even the controls under the steering
wheel. The white dials of the instrument panel and the chrome trims
strengthen the modern and technological feel of the interior.
Touches of “absinthe green”, inspired by the vehicle’s floor colour,
are subtly interspersed throughout the passenger compartment,
particularly in the form of discreet beads on the fascia panel, the
door panels, the rear of the front seats and the head restraints.
This colour also appears in the perforations of the seat leather,
like little bubbles of oxygen, echoing the vehicle’s
ecological method of propulsion. This harmony between white and
mineral tones further accentuates the sensation of freedom,
relaxation and energy that emanates from the car. From a functional
point of view, the instrument panel incorporates all necessary
information for monitoring the charge level of the battery and the
quantity of on-board hydrogen, while the colour display in the
centre console displays the flow of power between the electric
motor, the battery and the fuel cell.
The strategy of PSA
Peugeot Citroën: In a global context where the need to consume
less energy and reduce CO2 emissions is paramount, the PSA Peugeot
Citroën group is continuing its technological research into clean
and economical vehicles. In addition to work on improving the
efficiency of internal combustion engines, particularly with HDi
engines, the ability of the Group’s engines to run on fuels that
incorporate biofuels, the invention of the DPFS (diesel particulate
fi lter system) and research into HDi Hybrids, PSA Peugeot Citroën
is also studying “future technologies”.
For example, the hydrogen fuel cell could represent a high-potential
energy source for the
The advantages of the
fuel cell for the environment are many:
• it provides an
alternative to fossil fuels,
• it helps to reduce CO2 emissions and therefore to control the
• it improves the quality of life in town, thanks to the silent
operation of vehicles that use an electric motor and the
elimination of local emissions.
however, still has to overcome a number of technical and economic
before large-scale production can be envisaged.
PSA Peugeot Citroën has
therefore adopted a research strategy which aims to explore
different solutions. This work has therefore given rise to the
production of a succession
Fuel cell technology:
Operating principle of the fuel cell electric propulsion system
To operate, a fuel cell
needs hydrogen and oxygen. Oxygen is drawn from the air, while
hydrogen is stored on the vehicle. The combining of these two
elements creates an electrochemical reaction that causes a
displacement of electrons and protons which simultaneously produces
and above all electricity.
The 207 , like previous
demonstrators, uses the fuel cell as a source of on-board electrical
energy (increasing the maximum distance the vehicle can travel -
“range extender”). It powers the electric motor (propulsion system)
directly as well as helping to recharge the batteries.
Technological content of the 207 :
the «GENEPAC 20»
For the first time on a
demonstrator, the 207 uses a GENEPAC fuel cell. Combining simplicity
and modularity, this French designed cell has been designed to be
compact in installation and efficient in use.
The principle of this
new cell, featuring PEMFC (Proton Exchange Membrane Fuel Cell)
technology, is based on the use of thin, stamped stainless-steel
plates, which reduce the cost and volume of the cell compared to
This system also allows
for simple gauging of the cell’s power. For example, the cell used
on this demonstrator, called the “GENEPAC 20”, is a 20 kW version of
the GENEPAC system. The “GENEPAC 20” consists of two modules each
with a stack of thin plates and an assembly of electrode membranes.
This fuel cell system therefore offers a level of effi ciency in
excess of 50 % versus 25 to 30 % for an internal combustion engine.
Five cylinders containing 3 kg of hydrogen compressed to 700 bar
provides the electric motor and the “lithium-Ion” battery with as
much extra power and range as possible. They are located at the
bottom of the vehicle’s boot, which frees up the two rear seats,
does not affect the operation of the retractable roof mechanism and
leaves part of the boot available for use in the coupé position.
Use of an electric motor
allows the “207 ” to consume energy only when in motion and to save
energy during phases of deceleration. It also makes this
demonstrator silent, an important quality for a vehicle driven in
town and highly beneficial during use as a cabriolet.
The PAC technologies
give the “207 ” demonstrator a considerable range (around 350 km)
while offering a pleasing level of performance with a maximum speed
of 130 km/h. Helping to preserve pure air by emitting only water,
this 207 of the future is therefore well suited to urban and
semi-urban use... For “pure sensations”, original and purposeful!