Unlike current commercially available hybrids, the actual
propulsion of the Volt is accomplished by the electric motor, as
the internal combustion engine (ICE) is not mechanically connected
to the wheels. With fully charged batteries, this electric power
may be sourced exclusively from its onboard lithium-ion batteries,
for up to 40 miles (64 km), a distance capable of satisfying the
daily commute of 75% of Americans, which averages around 33 miles
(53 km).
After 40 miles (64 km), the range of the Volt will need to be
extended through the use of a small 4-cylinder ICE which drives a
53 kW generator. The electrical power from the generator is then
sent to either the electric motor or the batteries, depending on
the state of charge (SOC) of the battery pack and the power
demanded at the wheels. The distribution is controlled by the
electronic control unit (ECU) of the vehicle. This effectively
extends the Volt's potential range to as much as 640 miles (1,030
km) on a single tank of fuel(which could be potentially extended
for longer trips through conventional refueling).
The Volt's 16 kWh lithium-ion battery pack can also be fully
charged (technically ~85% SOC) by plugging the car into a
120-240VAC residential electrical outlet using the provided SAE
J1772 compliant charging cord. No external charging station will be
required.
An electric car is a type of alternative fuel car that utilizes
electric motors and motor controllers instead of an internal
combustion engine (ICE). Currently, in most cases, electrical power
is derived from battery packs carried on board the vehicle. Other
energy storage methods that may come into use in the future include
the use of ultracapacitors, or storage of energy in a spinning
flywheel.
Vehicles that make use of both electric motors and other types of
engine are known as hybrid electric vehicles and are not considered
pure electric vehicles (EVs) because they operate in a
charge-sustaining mode. Hybrid vehicles with batteries that can be
charged externally from an external source are called plug-in
hybrid electric vehicles (PHEV), and become pure battery electric
vehicles (BEVs) during their charge-depleting mode. Other types of
electric vehicles besides cars include light trucks and
neighborhood electric vehicles.