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PRESENTATION
The HYbrid4 technology allows two
sources of energy to be associated in
an effective manner: the Diesel HDi en-
gine, which drives the front wheels and
the electric motor, which drives the rear
wheels.
These two motors can operate alter-
nately or simultaneously, according to
the hybrid mode selected and the driv-
ing conditions.
The electric motor alone provides power
for the vehicle in "ZEV" (Zero Emissions
Vehicle) mode, and in "Auto" mode for
running at slow speed and low load. It
also assists the Diesel engine when
moving off, accelerating and changing
gear.
The battery that powers the electric
motor is recharged during phases of
deceleration and stores the energy for
subsequent use.
1.
Diesel HDi engine (front wheel drive).
2.
Electric motor (rear wheel drive).
3.
200 V battery.
4.
Electronic power supervisor.
5.
Stop & Start system.
6.
6-speed electronic gearbox.
7.
Electrical fl ow.
8.
HYbrid4 mode selector.
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Main parts of the HYbrid4 system
The HDi Diesel engine - 1
, located at the front, drives the front wheels and pro-
vides most of the power needed to drive the vehicle.
It is fi tted with the Stop & Start
system - 5
which recharges the batteries and pro-
vides additional power when needed (in 4x4 mode).
The electric motor - 2
, located at the rear, drives the rear wheels on its own, or
supplements the Diesel engine, according to the hybrid mode selected.
It recovers energy and charges the batteries during phases of deceleration of the
vehicle and is active up to 70 mph (120 km/h).
A 200 V NI-MH high voltage battery - 3
, provides a source of energy for the rear
electric motor.
Its charging rate is managed automatically by the vehicle during phases of decel-
eration.
It is located in a compartment in the boot, access to which is restricted to trained
service technicians.
The battery state of charge
is indicated by 8 horizontal or vertical bars (depending
on the screen).
The conventional battery
, located under the bonnet, powers the vehicle's 12 V
systems. It is recharged automatically by the high voltage network.
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The electronic power supervisor - 4
automatically manages the operation of
the two power units (Diesel and electric) to provide the lowest consumption.
An inverter and a transformer are needed to manage the electric power.
The inverter acts on the torque of the electric motor, by regulating the current
coming from the high voltage battery pack. Its operating range is between 150 and
270 volts.
The transformer converts the 200 V of the battery pack to 12 V, to power the
vehicle's ancillary systems.
The Stop & Start system - 5
allows the Diesel engine to be put into standby dur-
ing stops (traffi c lights, a stop, or in a traffi c jam, for example) or during phases of
running in all-electric mode.
The stopping and restarting of the Diesel engine is done in a way that is instanta-
neous and transparent for the driver.
The electronic gearbox - 6
provides, in automatic mode, signifi cant savings in
fuel consumption compared to a conventional manual gearbox, thanks to its elec-
tronic control system.
It also offers improved driving pleasure with the possibility at any time of choosing
the gear changing mode: automatic or manual, using the paddles located behind
the steering wheel.
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ZEV mode * (all electric)
Zero emissions vehicle operation is as-
sured 100 % by electric drive.
This mode forces silent running
at
moderate speeds.
* ZEV: Zero Emissions Vehicle. In ZEV mode:
- The accelerator control is progres-
sive.
- Range and acceleration capacity
are limited. The maximum speed
possible is around 36 mph (60 km/h).
- Under high load or a priority require-
ment causing the start of the Diesel
engine, the system changes auto-
matically to AUTO mode.
It can be activated when
the required conditions are
met, particularly if the state
of charge of high voltage
battery is suffi cient (from 4 bars).
If the conditions do not allow
this mode, a message that
the "electric mode is not cur-
rently available" appears in
the screen. The ZEV warning
lamp fl ashes for a few seconds then
goes off and the selector comes on in
AUTO.
Auto mode
It automatically manages the operation
of the Diesel engine and the electric
motor, according to inherent vehicle pa-
rameters, traffi c conditions and driving
style so as to optimise the vehicle's
fuel consumption
.
In particular, this mode activates "zero
emissions" electric running
when the
conditions allow.
In auto mode, the electric motor
:
- can drive the vehicle on its own up
to around 36 mph (60 km/h) in "zero
emissions" electric running, depend-
ing on the state of charge of the bat-
tery, if the conditions specifi c to the
vehicle are met and if acceleration is
moderate,
- supplements the Diesel engine
when moving off and changing gear,
during acceleration and when trac-
tion from the front wheels is inade-
quate (it automatically adds
4 wheel
drive
),
- is no longer active above 70 mph
(120 km/h).
This standard
mode to use in
preference
is activated auto-
matically
on starting the hy-
brid system.
For more information on "Au-
tomatic restarting of the Diesel
engine or ZEV mode not avail-
able", refer to the correspond-
ing section.
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Sport mode
(Diesel and electric)
4WD mode **
(Diesel and electric)
This mode allows more dynamic driving
by providing additional performance
.
Vehicle acceleration and pick-up are
maximised by using the capacity of the
electric motor, supplementing the power
of the Diesel engine.
This mode manages the progressive-
ness of the accelerator, the electronic
gearbox and the use of the electric
motor.
In Sport mode:
- The electric motor can be used up to
70 mph (120 km/h).
This mode provides additional trac-
tion
*** at low speed by driving all
4 wheels of the vehicle continuously:
the Diesel engine (front wheel drive) and
the electric motor (rear wheel drive) op-
erate simultaneously and permanently.
Their coupling is managed electroni-
cally to optimise traction on slippery
surfaces.
In 4WD mode:
- Power for the electric motor is pro-
vided, if needed, by the alternator-
starter motor of the front engine.
The Diesel engine operates continu-
ously.
- The additional traction from the elec-
tric motor is available up to 75 mph
(120 km/h).
This mode should be used on
snow covered roads or diffi cult
ground (mud, sand, ...).
In this mode, in severe conditions
and if the circumstances allow, it is
recommended that you accelerate
strongly to ensure that you move off
and avoid any risk of getting stuck.
**
4WD: 4 Wheel Drive.
***
This mode will be even more effec-
tive if suitable tyres are fi tted (winter
tyres in particular).
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VIEW HYBRID FLOW INFORMATION
H
ybrid modes
1.
Hybrid mode selected (AUTO, ZEV, SPORT, 4WD).
2.
Messages, e.g.: "Zero Emission" if the Diesel engine is
off (0 g/km CO
2).
Operation / Energy flows
6.
The Diesel engine supplies the battery (if needed).
7.
Arrow from left to right: the battery powers the electric
motor (when the electric motor is operating).
Arrow from right to left: the electric motor/generator
recharges the battery (energy recovery phases).
8.
The Diesel engine drives the front wheels.
9.
The electric motor drives the rear wheels.
Vehicle infrastructure
3.
Diesel engine.
4.
Traction battery state of charge.
5.
Electric Motor/Generator. Information on the active hybrid mode, arrows for energy fl ows and the state of charge of the battery, is displayed in the in-
strument panel screen or the screen.
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Examples of displays
On starting and when stationary
There is no fl ow of energy (the Stop & Start system
stops and restarts the Diesel engine automatically).
Energy recovery
During this phase (deceleration, braking, foot off the
accelerator, … all modes), the battery is recharged by
the electric motor/generator, then being driven by the
rear wheels.
You can maximise this energy recovery by taking your
foot off the accelerator pedal, deceleration will then be
less marked than with a conventional vehicle.
100% electric
In all electric running (AUTO or ZEV modes), only the
electric motor, powered by the battery, drives the rear
wheels.
The display of "Zero Emission" indicates that the Diesel
engine is off and the vehicle is producing no CO
2.
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Limit the causes of excess consumption
Spread loads throughout the vehicle;
place the heaviest items in the bottom
of the boot, as close as possible to the
rear seats.
Limit the loads carried in the vehicle
and reduce wind resistance (roof bars,
roof rack, bicycle carrier, trailer...). Use
a roof box in preference.
Remove roof bars and roof racks after
use.
At the end of winter, remove snow
tyres and refi t your summer tyres.
Observe the recommendationson maintenance
Check the tyre pressures regularly,
when cold, referring to the label in the
door aperture, driver's side.
Carry out this check in particular:
- before a long journey,
- at each change of season,
- after a long period out of use.
Have your vehicle serviced regularly
(engine oil, oil fi lter, air fi lter...) and ob-
serve the schedule of operations recom-
mended by the manufacturer.
When refuelling, do not continue after
the 3 rd cut-off of the nozzle to avoid
any overfl ow.
At the wheel of your new vehicle,
it is only after the fi rst 1 800 miles
(3 000 kilometres) that you will see
the fuel consumption settle down to a
consistent average.
