2012 Peugeot 3008 Hybrid 4 wheel

HYBRID SYSTEM
26








PRESENTATION



The HYbrid4 technology allows two
sources of energy to be associated in
an effective manner: that of the Die-
sel HDi engine which drives the front
wheels and that of 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 mo-
tor recharges itself 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.
Electronic gear control gearbox.

7.
Electric fl ow.

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27






Main parts of the HYbrid4 system


The Diesel HDi Diesel engine 1
, located at the front, drives the front wheels and
provides 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 deceleration.

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.

HYBRID SYSTEM
28

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 gear control gearbox 6
provides, in automatic mode, signifi cant
savings in fuel consumption compared to a conventional manual gearbox, thanks
to its electronic 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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31





HYBRID4 MODE SELECTOR


The selector allows the user to choose
between 4 drive modes for the vehicle.
Turn the dial to the right or left; the mode
selected is confi rmed by illumination of
the corresponding indicator.


ZEV
mode, to force electric running.

Sport
mode, to make use of the maxi-
mum performance of the vehicle.

Auto mode



4WD
mode, to force the vehicle into 4x4
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 emis-
sions" electric running, depending on
the state of charge of the battery, 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 traction
from the front wheels is inadequate (it
automatically adds
4 wheel drive
),

- is no longer active above 70 mph
(120 km/h).



AUTO
mode, for normal use and opti-
mised fuel consumption.
This standard
mode to use in
preference
is activated auto-
matically
on starting the hy-
brid system.

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32

ZEV mode *
(all electric)
Sport mode
(Diesel and
electric)
4WD mode **
(Diesel and
electric)

Zero emissions vehicle operation is as-
sured 100 % by electric drive.
This mode forces silent running
at
moderate speeds.
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 automatic
gear control 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 traction

***
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) operate simultaneously
and permanently.
Their coupling is managed electroni-
cally to optimise traction on slippery
surfaces.
In 4WD mode:


- Power for the electric motor is
provided, if needed, by the alterna-
tor-starter motor of the front engine.
The Diesel engine operates continu-
ously.

- The additional traction from the elec-
tric motor is available up to 70 mph
(120 km/h).


*
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 (4 bars minimum).

If the conditions do not allow
this mode, a message that the
ZEV mode is not available ap-
pears in the screen, the ZEV
warning lamp fl ashes for a few
seconds then goes off and the selector
comes on in AUTO.

**
4WD: 4 Wheel Drive.

***
This mode will be even more effec-
tive if suitable tyres are fi tted (winter
tyres in particular).
This mode should be used on
snow covered roads or diffi cult
ground (mud, sand, …).

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34
VIEW HYBRID FLOW INFORMATION

Hybrid modes


1.
Hybrid mode selected (AUTO, ZEV, SPORT, 4WD).

2.
Messages, e.g.: "Zero Emissions" 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.

HYBRID SYSTEM
35

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, itself driven by the rear
wheels.

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 Emissions" indicates that the
Diesel engine is off and the vehicle is producing no CO
2.

HYBRID SYSTEM
38

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 recommendations
on 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
observe the schedule of operations
recommended 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 set-
tle down to a consistent average.