2013 Citroen DS5 HYBRID4 Electric engine

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 ri
ght or left; the mode selected is confirmed by illumination of the corresponding indicator.
ZEVmode, to force electric runnin
g.Spor
tmode, 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 selector in position N, press the brake pedal and press
the STA R T/STOP button 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 instantly but may take a few seconds in some cases (inparticular, the time needed for pre-heating the
Diesel engine in cold weather or, for example,
in energy economy mode, ...).








Ready lamp
With the vehicle stationary, press the STA R T/STOP button and check that the Readylamp is off when leaving thevehicle, other wise the hybrid system will still be active.


For more information, refer to the section on "Underbonnet 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 (from 4 bars).


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 "zero emissions" electric running,
depending on the state of charge of the
battery, if the conditions specific to the
vehicle are met and if acceleration is
moderate, -supplements the Diesel engine 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- is no longer active above 70 mph(120 km / h).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 surfaces.
In 4WD mode:


- Power for the electric motor is provided,
if 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 75 mph (120 km/h).
In ZEV m
ode:


- 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, thesystem changes automatically to AUTO
mode.I
f the conditions do not allow this mode, a message that the "electricmode is not currently available"appears in the screen. The ZEV
warning lamp flashes for a few seconds then goes off and the selector comes on in AUTO.
This mode should be used on snow covered roads or difficult ground (mud, sand, ...).In this mode, in severe conditions and if the circumstances allow, it is recommendedthat you accelerate strongly to ensure that you move off and avoid any risk of getting stuck.The addition of 4WD traction is available whatever:- the state of charge of the tractionbattery, - the altitude.



For more information on "Automatic restarting of the Diesel engine or ZEV mode not available", refer to the corresponding section.
**
4WD: 4 Wheel Drive.
***
This mode will be even more effective if suitable tyres are fitted (winter tyres in
particular).

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. 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). Z
one which indicates that the vehicle is in electrical energy recoveryphase: on
deceleration, braking (partially or par ticularly
with your foot off the accelerator (to use
in preference as this gives better energy
recovery).
This allows the high voltage battery to be
recharged using "free" energy which can then be reused
for future energy requirements.


ECO zone
CHARGE zone

39Hybrid system
Zone which indicates an increased cumulative power demand
from your hybrid vehicle,
taking account of the combined power availablefrom the Diesel engine and the electric motor.

POWER zone

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.
You can maximise this energy recovery by taking your foot off
the accelerator pedal, deceleration will then be less marked
th
an 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 CO2.

Automatic restarting of the Diesel engine or ZEV mode NOT available

Maintaining the performance
of the system



- When the vehicle exceeds 18 mph(30 km/h) after moving off (if the internal
combustion engine has not already star ted since the vehicle was last star ted).

- If the high voltage battery is not sufficiently charged. A minimum of 4 barsin ZEV mode so as to ensure operationover a cer tain distance (in AUTO, electricoperation is accessible for a shor ter period with a lower level of charge).

- When the fuel level enters the reservezone (where rate of consumption of this reser ve is high, ZEV inhibition may continue for some time after refuelling).

- During regeneration of the particleemissions filter, which occursautomatically for 5 to 10 minutes,approximately every 300 miles (500 kms)(or less in extended urban running).

The internal combustion engine may restar t or
ZEV mode may not be available in the variousconditions presented below. The internal combustion engine can beswitched off automatically as soon as these
conditions are lifted. When the conditions described below causethe vehicle to come out of ZEV mode andthe Diesel engine to restar t, the vehicle automatically changes to AUTO mode.
Your vehicle is fitted with the most effective emissions control systems, in par ticular the Particle 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 andis accompanied by a message "Electricmode not available: PEF regeneration inprogress
".
Action by the driver
- Moving the gear selector to position M
. - Action on steering mounted control paddles to change gear.- Sustained and sharp acceleration. - Use of demisting.- Use of air conditioning.


Diffi cult weather conditions and
circumstances



- If cer tain conditions or engine temperature requirements make it necessary (such as an engine temperature that is too low for the ambient conditions).

- When the battery is close to maximumcharge (for example: when going down a long hill), because engine recoverybeing no longer possible, the internalcombustion engine restar ts automatically just to provide engine braking.

- If the vehicle encounters a steep slope(car park ramp, ...).

- If the vehicle has been parked in the sunfor a prolonged period.

- When driving in mountainous conditions(altitude).