Hybrid System; Start&Stop System (Extended S&S); Energy Recovery During Deceleration; Acceleration Assist Function - Fiat 500 Hybrid 2020 Owner's Handbook Manual

HYBRID SYSTEM

Your car is provided with a hybrid
system, which uses an electric motor
that is mechanically coupled to the
thermal engine (via a dedicated belt)
and powered by an auxiliary lithium
battery (12 V). The electric motor
contributes to driving the car forward
together with the heat engine when
there is a certain acceleration request,
and charges the lithium battery when
the car decelerates.
The hybrid system uses a BSG (Belt
Starter Generator) electric motor
working both as a generator (alternator)
and as a starter motor.
NOTE The system does not operate
continuously, but is activated according
to the car status, driving conditions
(acceleration, braking, deceleration
and starting) and road conditions (e.g.
gradient).
ENERGY RECOVERY
DURING DECELERATION
("e-COASTING"/"e-BRAKING"
functions)
During deceleration with a gear
engaged, the BSG (Belt Starter
Generator) recharges the lithium
94
auxiliary battery and the traditional lead
battery. When the accelerator pedal
is released with the gear is engaged,
the BSG acts as an engine brake (e-
COASTING function). This contribution
is increased by pressing the brake
pedal at the same time (e-BRAKING
function). The recovered energy is
made available later, helping to save
fuel.
NOTE If the conventional battery is
flat, there is no energy recovery to
the auxiliary battery, and so the Trip
Computer "Energy Flows" screen on
the instrument panel (for versions with
colour display only) does not display
the relative recharging flows.
ACCELERATION ASSIST
FUNCTION ("e-ASSIST"
function)
In general, during pickup from low
engine speeds, the hybrid system
shares the torque between the electric
motor and thermal engine when
necessary, thereby reducing the output
power of the thermal engine in order to
optimise consumption.
HEAT ENGINE RESTART
BY START&STOP
("EXTENDED S&S"
FUNCTION)
The new system automatically switches
the thermal engine on and off using
the Start&Stop ("EXTENDED S&S")
function. In this way, the efficiency
of the car is increased, by reducing
consumption, harmful gas emissions
and noise pollution. Furthermore, the
Start&Stop system restarts the thermal
engine using the electric motor (BSG),
resulting in a quieter restart than that
achieved by starting the thermal engine
using the starter motor.
START&STOP
SYSTEM (EXTENDED
S&S)
126) 127) 128)
33)
The Start&Stop system automatically
turns off the engine whenever:
the car is decelerating and is about
to stop,
or:
the car is stationary.
The system restarts the engine then the
driver intends to continue driving.
In this way, the vehicle efficiency is
increased, by reducing consumption,
dangerous gas emissions and sound
pollution.
OPERATING MODE
Stopping the engine
When the speed drops below 30 km/h
and the conditions permit, the GSI