Volvo 2008 Annual Report Download - page 20

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During the year, the
Volvo Group show-
cased the fourth-gen-
eration hybrid solution
on a broad front in
buses, trucks and con-
struction equipment.
“Our hybrid solution for heavy vehicles is com-
pletely different from anything that has existed in
the market to date,says CEO Leif Johansson.
As a result of our volumes and resources, we
have succeeded in developing a more stand-
ardized platform solution, which is a prerequi-
site for the hybrid technology’s ability to have a
widespread commercial impact in the market
for heavy vehicles.”
Volvo has been testing various types of
hybrid solutions since the 1980s and unveiled
the fi rst commercially viable hybrid solution for
heavy vehicles in March 2006. Volvo’s solution
is based on a concept known as I-SAM (Inte-
grated Starter, Alternator and Motor).
Unlike a series hybrid system, a powertrain
based on a parallel hybrid system can be used
as a pure conventional diesel powered system
or as an electric powertrain system or in a
mixed mode. This fl exibility ensures highest
possible system ef ciency irrespective of driving
condition and a much improved overall fuel ef -
ciency compared to the series hybrid system.
Fourth generation
We call this the fourth-generation hybrid
technology. In the future, hybrid technology
will not be a special solution but a technology
found in most new city buses and distribution
trucks. The fourth-generation hybrid technol-
It saves fuel. It reduces emissions. And it can be used together with alternative
fuels. Hybrid technology is one of the most promising and competitive technologies
for commercial vehicles.
A global group 2008
16