engine Citroen DS5 HYBRID4 RHD 2011.5 1.G User Guide

33Hybrid system











Anti-theft protection
Electronic engine immobiliser
The keys contain an electronic chip which hasa secret code. When the ignition is switchedon, this code must be recognised in order for
star ting to be possible.
This electronic en
gine immobiliser locks the
engine management system a few minutes after the ignition is switched off and prevents
starting of the engine by anyone who does not have the key.
In the event of a malfunction, you are informed by a message in the instrument panel screen.In this case, your vehicle does not start; contacta CITROËN dealer as soon as possible.
Ignition on without starting
the engine
(accessory position)

With the electronic key in the reader or the
Keyless Entry and Star ting key inside the
vehicle, pressing the "START/STOP" button,
with no action on the pedals, allows the ignition
to be switched on and so activate the ancillary equipment.
)
Press the "START/STOP" button,
the instrument panel comes on but the engine does not star t.) Press the button again to switch
off the ignition and so allow the
vehicle to be locked.
Using the ancillaries for a long period introduces the risk of a flat battery.

Back-up starting with the Keyless Entry and Starting
system
When the electronic key is in the defined zone and your vehicle does not star t after pressingthe "STA R T/STOP" button: )Inser t the electronic key in the reader. )Press the brake pedal. )Press the "STA R T/STOP" button.
The hybrid system is active.



Back-up switch- off

In the event of an emergency only, the enginecan be switched of without any conditions. To do this, press and hold the "STA R T/STOP"button for about 3 seconds.
In this case the steering column locks as soon
as the vehicle stops.

Electronic key not recognised bythe "Keyless Entry and Starting"
system
If the electronic key is no longer in the defined
zone when driving or when you (later) try
to switch off the hybrid system, a message
appears in the instrument panel.
)Press and hold the "STA R T/STOP" button for about 3 seconds if you want to force
the hybrid system to switch off (note that restar ting will not be possible without theelectronic key in the defined zone).

35
Hybrid system








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 confirmed by illumination of thecorresponding indicator.
ZEVmode, to
force electric running.S
portmode, to make use of the maximum performance of the vehicle.
4WDmode, to force the vehicle into 4x4 mode.

AUTOmode, for normal use and optimised fuelconsumption. On star ting the vehicle: with the gear lever in position N, press the brake pedal and press
the STA R T/STOP switch to activate the hybrid system.
This lamp comes on when the vehicle is ready
to move off ("Auto" mode is on by default) andso the driver can press the accelerator.
This lamp comes on more or less instantlybut may take a few seconds in some case (in particular, the time needed for pre-heating the
Diesel engine in cold weather).









Ready lamp
When stationary, ensure that you press the STA R T/STOP switch and check that the Readylamp is off when leaving thevehicle. Otherwise the hybrid systemwill still be active. See paragraph "Under bonnet precautions/warnings".

ZEV mode *
(all electric)

Zero emissions vehicle operation is assured10 0 % by electric drive.
This mode forces silent running
at moderate speeds.
It
can be activated when therequired conditions are met, particularly if the state of charge of high voltage battery is sufficient (4 bars minimum).

Auto mode
It automatically manages the operation of theDiesel engine and the electric motor, according
to inherent vehicle parameters, traffic conditions and driving style so as to optimise
the vehicle's fuel consumption.
In particular, this mode activates "zero emissions" electric runningwhen theconditions allow.
In auto mode, the electric motor:

- can drive the vehicle on its own up
to around 36 mph (60 km/h) in "zeroemissions" electric running, dependingon the state of charge of the battery, if the conditions specific to the vehicle are met
and if acceleration is moderate,

- supplements the Diesel en
gine
when
moving off and changing gear, duringacceleration and when traction from the front wheels is inadequate (it automatically adds4 wheel drive),

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



*
ZEV: Z
ero Emissions Vehicle.
This standardmode to use in preference
is activated automaticallyon starting the hybrid system.

37
Hybrid system

Sport mode
(Diesel and
electric)


4WD mode **

(Diesel and
electric)
This mode allows more dynamic driving byproviding 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 progressiveness of theaccelerator, 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 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 electronically tooptimise traction on slippery sur faces.
In 4WD mode:


- Power for the electric motor is provided,
i
f needed, by the alternator-star ter motor
of the front engine. The Diesel engine
operates continuously.

- The additional traction from the electricmotor is available up to 70 mph (120 km/h). In ZEV m
ode:


- the accelerator control is progressive.

- Range and acceleration capacity are
limited. The maximum speed possible is
around 36 mph (60 km/h).

- Under high load or a priority requirement causing the star t of the Diesel engine, the
system changes automatically to AUTO mode.I
f the conditions do not allow this mode, a message that the ZEV mode is not available appears in
the screen, the ZEV warning lamp
flashes for a few seconds then goes off and theselector comes on in AUTO.
This mode should be used on snowcovered roads or difficult ground (mud, sand, ...).
For more information on "Automatic
restarting of the Diesel engine", refer to the corresponding section.

**

4WD: 4 Wheel Drive.
***

This mode will be even more effective if suitable tyres are fitted (winter tyres inparticular).

Energy consumption/generation indicator
The indicator dial provides real time information
on the total power used, combining electric and
Diesel.
It comprises three main zones.

ECO zone

Zone which indicates that the vehicle is optimising its energy consumption
, electric, Diesel or a combination of both.
This zone corresponds to phases of electric
running as well as to phases of optimum use of
the Diesel engine, which are easily accessible
with a suitable driving style (smooth "eco-citizen" driving).

CHARGE zone

Zone which indicates that the vehicle is
in electrical energy recovery phase: on ydeceleration, braking or foot off the accelerator, ...
This allows the high voltage battery to be
recharged using "free" energy which can then be reused
for future energy requirements.

39Hybrid system

POWER zone

Zone which indicates an increased cumulative power demand
from your hybrid vehicle,
taking account of the combined capacities of
the Diesel engine and the electric motor.

View hybrid fl ow information
Hybrid modes
1.
Hybrid mode selected (AUTO, ZEV, SPORT, 4WD).
2.
Messages, e.g.: "Zero Emission" if the Diesel engine is off (0 g/km CO2).


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.
Tr a c t i o n b a t t e ry state of charge. 5.
Electric Motor/Generator. Information on the active h
ybrid mode, arrows for energy flows and the state of charge of the battery, is displayed in the instrument panel screen or
the screen.

41Hybrid system

Examples of displays


On starting and when stationary

There is no flow of energy (the Stop & Star t system stops and
restar ts 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.


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 CO2.

Automatic restarting of the Diesel engine or ZEV
mode NOT available
- when maintaining a comfortabletemperature in the passenger compar tment (air conditioning, ...),- when using the vehicle after prolonged parking in a sunny area,- when demisting, - during sustained and sharp acceleration - in mountainous conditions (altitude), - when using the vehicle on a steep slope(car park ramp, ...),- when regenerating the par ticle emissionsfilter, for around 5 to 10 minutes every 300 miles (500 km) (or less for extended urban running. )- in certain engine temperature conditions or requirements, such as an enginetemperature that is too low for the ambientconditions. In ZEV mode, these conditions lead to animmediate change to AUTO mode.The Diesel engine is switched off automatically as soon as these conditions are lifted.
The main conditions are:


- if the gear lever is in position M,

- if the steering mounted gear change controlpaddles are operated,

- if the high voltage battery is not sufficientlycharged. At least 4 bars in ZEV mode soas to provide a cer tain distance (in AUTO mode, electric operation is available morebriefly with a lower state of charge),

- at 18 mph (30 km/h) after setting off (if the internal combustion engine has not already star ted since setting off),

- when the vehicle is on a slope, to retain engine braking from the internal combustion engine when the battery is fullycharged,

- when using engine braking from the internal combustion engine,

- when the fuel level enters the reserve zone(in the event of high consumption of this reser ve, inhibition of ZEV can continue for some time after refuelling).


Your vehicle is fitted with the most effectiveemissions control systems, in par ticular theParticle Emissions Filter (PEF). At regular inter vals your Diesel engine will produce energy for the self-cleaning of this filter.
During this PEF regeneration phase, electric running is purposely made unavailable.