2019 VOLVO XC90 TWIN ENGINE battery

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458
INDIVIDUAL

Customizes drive mode to personal preferen-
ces.
Select one of the drive modes as a basis and
adjust the settings to achieve your preferred driv-
ing characteristics. These settings will be stored
in your driver profile.
Individual drive mode is only available if it has
been activated in the center display. Settings view
4
for Individual drive mode.
1. Tap Settings in the Top view.
2.

Tap My Car Individual Drive Mode
and
select Individual Drive Mode. 3.
Under Presets, select one of the following
drive modes as a basis: Pure, Hybrid or Power.
The following settings can be modified:
Driver Display
Steering Force
Powertrain Characteristics
Brake Characteristics
Suspension Control
ECO Climate.
Using the electric or combustion
engine
An advanced control system determines the dis-
tance that the vehicle can be driven on the com-
bustion engine, electric motor, or both at the
same time.
Its primary function is to use the motor/engine
and the current available in the hybrid battery as
efficiently as possible based on the characteris-
tics of the various drive modes and the power
output requested by the driver by pressing the
accelerator pedal.
In certain cases, temporary limitations in the sys-
tem or mandatory functions to help maintain a
low overall emissions level may result in greater
use of the combustion engine. 4
The image is schematic and the details may vary depending on vehicle mod\
el or software update.

STARTING AND DRIVING
* Option/accessory.
460 Energy distribution in hybrid mode
using map data*
The Hybrid drive mode is the vehicle's default
drive mode in which the electric motor and the
combustion engine work separately or together
in hybrid mode. If a destination has been
selected in the navigation system*, the Predictive
Efficiency 5
function can use map data to effec-
tively distribute the electric power throughout the
trip.
This can lower fuel consumption in comparison
with normal hybrid mode, in which the vehicle first
runs on electricity and then switches to the com-
bustion engine when the hybrid battery is dis-
charged.
If the distance to the destination is greater than
the calculated range on the electric motor, the
function will distribute electric power optimally for
the entire trip. This makes it possible to avoid sit-
uations in which normal hybrid mode would oth-
erwise use a large portion of the electric power
to e.g. use the electric motor at high speeds on a
highway and then use the combustion engine at
lower speeds during city driving.
The greatest fuel savings are attained when the
trip begins on a highway, is between 50 and 100
km (30 and 60 miles) long, and the hybrid battery
is fully charged at the start of the trip.
Requirements for the functionCertain conditions must be met for the function
to be possible: A destination must be set in the navigation
system and the distance to the destination
must be longer than the possible range
using only the electric motor.
Hybrid drive mode must be selected.
The
Hold and Charge functions must be
disabled.
The hybrid battery must be charged.
Usage tipsIf you commute and it is not possible to charge
the vehicle at work, enter your workplace as a
waypoint and your home as the destination. Dis-
charging of the hybrid battery will then be distrib-
uted over the entire commute to and from work.
Add similar commutes, i.e. the route between two
charges, as
Favorites in the navigation system to
facilitate access.
Related information
Drive modes (p. 454)
Economical driving (p. 467) 5
Certain markets only.

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467
Activating and deactivating Hill
Descent Control using the function
button
There is a function button for assistance on
steep gradients with Hill Descent Control in
the center display's Function view if the vehicle
is not equipped with a drive mode control in the
tunnel console.
Selecting Hill Descent Control in the
center display's Function view
HDC only works at low speeds.
– Tap the Hill Descent Control button to
activate or deactivate the function. > An indicator light in the button will illumi-
nate when the function is activated.
When the engine is switched off, the function will
be automatically deactivated.
NOTE The function is deactivated when driving at
high speeds and must be reactivated at lower
speeds if so desired.
Related information

Hill Descent Control (p. 466)
Changing drive mode (p. 459) Economical driving
Drive economically and more environmentally
conscious by thinking ahead, avoiding rapid
starts and stops and adapting driving style and
speed to the current traffic conditions.
To help achieve the greatest distance with the
lowest fuel consumption with Twin Engine,
observe the following:
Charge
Charge the vehicle regularly by plugging it
into an electrical outlet. Make it a habit to
always begin trips with the hybrid battery fully
charged.
Locate charging stations along your route.
If possible, choose parking spots with charg-
ing stations.
NOTE Charge the vehicle from the electricity grid as
often as possible!

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* Option/accessory.
468
Preconditioning
Whenever possible, precondition the vehicle
before driving by connecting the charging
cable to an electrical outlet.
Avoid parking the vehicle somewhere where
the interior will become too hot or too cold
while the vehicle is parked. If possible, park
the vehicle in a climate-controlled garage.
During a short drive after passenger com-
partment preconditioning, turn off the pas-
senger compartment fan or the air condition-
ing in a hot climate.
If preconditioning is not possible when it is
cold outside, use seat and steering wheel
heating first. Avoid heating the entire pas-
senger compartment to reduce the amount
of current being taken from the hybrid bat-
tery.
Driving
Choose the Pure drive mode to help mini-
mize electric power consumption.
Maintain a steady speed and a generous fol-
lowing distance to traffic ahead to minimize
braking. This drive mode has the lowest
power consumption.
Balance energy requirements using the
accelerator pedal. Use the indicator on the
instrument panel to see available electric
power and avoid starting the combustion
engine unnecessarily. The electric motor is more effective than the combustion engine,
especially at low speeds.
When braking is necessary, brake gently
using the brake pedal. This will help recharge
the hybrid battery. A regenerative function is
integrated in the brake pedal and can be
augmented by the electric motor's braking
capacity when the gear selector is in mode
B.
Higher speeds increase energy consumption
- air resistance increases with speed.
Activate the Hold function in the Function
view at high speeds when traveling farther
than is possible using the hybrid battery's
capacity.
Whenever possible, avoid using the Charge
function to charge the hybrid battery. Charg-
ing the battery using the combustion engine
increases fuel consumption and carbon diox-
ide emissions.
In a cold climate, reduce heating of the wind-
shield/rear window, mirrors, seats and the
steering wheel.
Maintain the correct pressure in the tires and
check pressure regularly.
The type of tires used could affect energy
consumption - consult a retailer for advice on
suitable tires.
Remove unnecessary items from the vehicle
- the heavier the load, the higher the fuel
consumption.
Roof loads increase air resistance and
increase fuel consumption. Remove roof
boxes, ski racks, etc. that are not in use.
Avoid driving with the windows open.
Do not keep the vehicle still on an upward
gradient by using the accelerator pedal. Use
the brakes instead.
Related information

Drive-E ‒ purer driving pleasure (p. 27)
Energy distribution in hybrid mode using map
data* (p. 460)
Factors affecting electric motor range
(p. 469)
Using the electric motor only (p. 469)
Hybrid gauge (p. 87)
Checking tire pressure (p. 567)

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469
Using the electric motor only
When using the electric motor, Volvo Twin
Engine provides a combination of good fuel
economy, low emissions and high performance.
For energy-efficient driving:
Select the Pure drive mode to help maximize
driving range using only the electric motor.
Balance energy requirements using the
accelerator pedal. Use the indicator on the
instrument panel's hybrid gauge to see avail-
able electric power and avoid starting the
combustion engine unnecessarily.
When braking is necessary, brake gently
using the brake pedal. This will recharge the
hybrid battery.
Activate the
Hold function in the Function
view at high speeds when traveling farther
than is possible using the hybrid battery's
capacity.
Reduce current consumption in the passen-
ger compartment by reducing e.g. fan speed,
electric heating, or air conditioning use.
Also follow the general economical driving advice
regarding speed, tires and load to maximize
range.
Related information
General information about Twin Engine
(p. 416)
Economical driving (p. 467)
Hybrid gauge (p. 87)
Factors affecting electric motor range
(p. 469)
Starting and stopping the combustion engine
in Twin Engine vehicles (p. 454)
"Hold" and "Charge" functions (p. 471) Factors affecting electric motor
range
A number of factors affect the electric motor's
driving range. The ability to achieve a long driv-
ing range varies according to the outside condi-
tions and to how the vehicle is driven.
The certified value for the distance that can be
driven using the electric motor should not be
considered an expected driving range. The actual
range is dependent on a number of factors.
Factors affecting driving rangeThe driver can influence some factors affecting
driving range, but not all.
The longest range is achieved under very favora-
ble conditions when all factors positively influ-
ence range.

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470
Factors the driver cannot control
There are several outside conditions that affect
range to varying degrees:

the current traffic situation
driving short distances
topography
ambient temperature and headwinds
road conditions and road surface.
The following table shows the approximate rela-
tionship between ambient temperature and driv-
ing range with normal climate settings and with
climate settings turned off.
Up to a certain limit, warmer ambient tempera-
tures increase the electric motor's driving range. Ambient tem-
perature
Climate set-
tings turned
offNormal cli-
mate set-
tings
30 °C (86 °F) 95 %

80 %
20 °C (68 °F) 100 % 90%
10 °C (50 °F) 90 % 80 %
0 °C (32 °F) 80 % 60 %
-10 °C (14 °F) 70 % 40 %
Factors the driver can control
The driver should be aware that the following fac-
tors help conserve energy and improve driving
range:
charging the battery regularly
preconditioning
Pure drive mode
climate control settings
speed and acceleration
the
Hold function
tires and tire pressure.
The following table shows the approximate rela-
tionship between constant speed and driving
range. Driving at a lower constant speed helps
increase the electric motor's driving range. Constant speed
100 km/h (62 mph)
50 %
80 km/h (50 mph) 70 %
60 km/h (37 mph) 90 %
50 km/h (31 mph) 100 %
NOTE
The figures shown in the tables pertain to
a new vehicle.
None of the figures are absolute and are
affected by e.g. driving style, environment
and other conditions.
Related information
Using the electric motor only (p. 469)
Economical driving (p. 467)
"Hold" and "Charge" functions (p. 471)
Drive modes (p. 454)

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471
"Hold" and "Charge" functions
In certain situations, it can be useful to control
the hybrid battery's charge level while driving.
This is possible with the Hold and Charge func-
tions.
Hold and Charge are available in all drive modes. The functions will switch off if Pure drive
mode is activated.
Function buttons for Hold and ChargeThe functions can be activated in the center dis-
play's Function view.
Hold
Battery level sustained for
later use.
This function retains the charge
in the hybrid battery for the
electric motor and saves availa-
ble electrical current for use at
a later time, such as when driving in an urban
area or residential neighborhood.
The vehicle will function as in normal hybrid driv-
ing with a discharged battery - in addition to
reusing energy from e.g. regenerative braking, the
combustion engine will be used more frequently
to maintain the charge in the battery.
Charge
Engine charges hybrid
battery.
This function charges the
hybrid battery with the help of
the combustion engine for
increased use of the electric
motor at a later time.
Symbols in the instrument panel The symbol is displayed in the hybrid battery gauge
when Hold is activated. The symbol is displayed in the hybrid battery gauge
when Charge is activated.
Related information
Using the electric motor only (p. 469)
Economical driving (p. 467)
Hybrid gauge (p. 87)

STARTING AND DRIVING
472Preparing for a long trip
It is important to have the vehicle's systems and
equipment checked carefully before driving long
distances.
Check that:
the engine is running properly and that fuel
consumption is normal
there are no leaks (fuel, oil or other fluid)
the brake pedal is functioning optimally
all lights are working ‒ adjust the headlight
height if the vehicle is carrying a heavy load
tire tread depth and air pressure are at cor-
rect levels. Change to snow tires when driv-
ing in areas where there is a risk of snowy or
icy roads
the start battery is sufficiently charged
the wiper blades are in good condition
Related information
Checking tire pressure (p. 567)
Filling washer fluid (p. 662)
Winter driving (p. 472)
Economical driving (p. 467)
Vehicle modem settings (p. 545)
Loading recommendations (p. 598)
Driving with a trailer (p. 483)
Pilot Assist (p. 316)
Speed limiter (p. 283)
Tire sealing system (p. 582) Winter driving
It is important to check the vehicle before driving
in cold/snowy conditions to make sure it can be
driven safely.
Before the cold season arrives: Make sure the engine coolant contains 50%
antifreeze. This mixture helps protect the
engine from frost erosion down to
approx. -35 °C (-31 °F). Do not mix different
types of antifreeze as this could pose a
health risk.
Keep the fuel tank well filled to prevent con-
densation from forming.
Check the viscosity of the engine oil. Oil with
low viscosity (thinner oil) improves cold-
weather starting and reduces fuel consump-
tion when driving with a cold engine.
CAUTION Low-viscosity oil should not be used with hard
driving or in hot weather.

Check the condition and charge level of the
start battery. Cold weather places greater
demands on the start battery and reduces its
capacity.
Use washer fluid containing antifreeze to
help prevent ice from forming in the washer
fluid reservoir.