torque MERCEDES-BENZ E400 HYBRID 2014 Owners Manual

R
During partial electric driving, pulling away
and acceleration, the electric motor
supports the internal combustio nengine.
R During overru nintransmission position D
and braking, the electric motor will operate
as a generator.
i For further information about the ECO
start/stop function (Y page 22) and driving
tips, see the vehicle Operator's Manual. Stationary vehicle
In this operating mode, the internal
combustion engine is primarily switched off.
Electric drive from the refrigerant compressor
ensures that the automatic climate control
system continues to operate. The
electromechanically assisted steering gear
allows you to use the power steering without
reduced comfort. Acceleration/boostf
unction
Depending on the drive progra mand
accelerator pedal position, the vehicle drives
in pure electric mode or in combination with
the engine .The boost function is used when
accelerating or driving at increased or full
load. The electric motor assists the engine by
providing extra torque whenever the
accelerator pedal is depressed quickly. Overrun mode or braking
When decelerating your hybrid vehicle, three
operating conditions are possible:
R energy recovery (Y page 23) takes place
even when the vehicle is decelerating
purely in overrun mode. The electric motor
operates as a generator and stores the
recovered energy in the high-voltage
battery.
R when the brakes are applied lightly, the
vehicle is slowed down further by the
electric motor. This increases the energy recovery taking place. The electric motor
operates as a generator and stores the
recovered energy in the high-voltage
battery.
R during heavy braking, the service brake is
also used to slow down the vehicle. The two
systems work together. Urban driving
The advantages of the hybrid vehicle come
especially clearly into play when driving in the
city. Energy is recovered during the vehicle's
frequent braking.
The vehicle operates exclusively with the
electric motor at speeds of up to
approximately 20 mph (35 km/h), for
example:
R while approaching a traffic light
R in stop-start traffic
i The vehicle operates exclusively with the
electric motor only if all conditions for
automatic engine switch-off are met
(Y page 22). Driving on inter-urban roads
When driving on inter-urban roads, the
vehicle switches between boost phase,
constant phase and energy recovery phase.
Ag reat deal of recovered energy may be
available, depending on the route profile. This
has a positive effect on fuel consumptio nand
emissions. Highway driving
Whe ndriving on a highway, the decrease in
wasted power through recuperatio nhas a
particularly positive effect on fuel
consumption and emissions. 26
Driving tipsDriving and parking

The engine powers the vehicle.
The arrows for the energy flow are shown in
white.
Driving using the engine plus boost
mode
Example: COMAND display
If you depress the accelerator pedal quickly,
the electric motor assists the engine by
providing extra torque.
The arrows indicating energy flow are red.
Driving using the engine plus energy
recovery Example: COMAND display
The engine powers the vehicle.
The electric motor is operating as a
generator, e.g. in overrun mode and when
braking (Y page 26). The kinetic energy of the
vehicle is converted into electrical energy and
stored in the high-voltage battery.
The arrows for the energy flow turn green. Driving using the engine while charging
the high-voltage battery Example: COMAND display
The engine powers the vehicle. The engine
also powers the electric motor
.The electric
motor operates as a generator. The high-
voltage battery is being charged.
The arrows for the energy flow are shown in
white.
Electric drive Example: COMAND display
The electric motor powers the vehicle. The
high-voltage battery supplies energy to the
electric motor.
The arrows for the energy flow turn green.
Electric drive while charging the high-
voltage battery
Example: COMAND display
The electric motor is operating as a
generator, e.g. in overrun mode and when
braking. The kinetic energy of the vehicle is30
Menus and submenusOn-board computer and displays