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Scania annual report 2004

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Choices of technology<br />

<strong>Scania</strong>’s choices of technology are governed<br />

by concern for the situation of customers.<br />

Exhaust gas recirculation (EGR) is the<br />

solution that <strong>Scania</strong> prefers for reducing<br />

emissions. EGR is easiest for the driver,<br />

who only needs to fill up with standard fuel,<br />

not additives. A combination of unique<br />

<strong>Scania</strong> technologies yields an efficient Euro 4<br />

engine that has the same fuel economy as<br />

a Euro 3 engine.<br />

An EGR system utilises part of a vehicle’s<br />

cooling capacity. <strong>Scania</strong> thus also uses<br />

another technology – selective catalytic reduction<br />

(SCR) – in which a so-called urea<br />

solution known as AdBlue is continuously<br />

added to the exhaust gases in a catalyst<br />

in order to reduce the amount of nitrogen<br />

oxides in the exhaust. This technology is<br />

employed in <strong>Scania</strong>’s most powerful Euro 4<br />

engines to safeguard their cooling capacity.<br />

The vehicle must have an extra tank holding<br />

about 100 litres, as well as a separate<br />

AdBlue injection system.<br />

In its Euro 5 engine, <strong>Scania</strong> will introduce<br />

a new injection system developed in-house<br />

and a more advanced engine platform that<br />

will enable the use of EGR technology in all<br />

engines.<br />

Truck and bus driving pleasure<br />

For many years, <strong>Scania</strong> has been well<br />

known for creating a good driver environment.<br />

This has contributed to its prestigious<br />

brand image.<br />

Many man-years of experience, customer<br />

contacts and development work<br />

are behind the new driver’s workplace in<br />

<strong>Scania</strong>’s new range of trucks.<br />

One of the reasons cited by the jury<br />

that selected the new R-series for the<br />

International Truck of the Year award<br />

was <strong>Scania</strong>’s particular attention to<br />

driver comfort.<br />

The purpose of <strong>Scania</strong>’s ergonomic<br />

refinements is to enable drivers to feel at<br />

home quickly and do the best possible<br />

job. Functions and controls should be<br />

intuitively easy for drivers to understand.<br />

A vehicle should continuously communicate<br />

how effectively it is working. This is<br />

important to enable the driver to take<br />

optimal advantage of its performance.<br />

The driver of a <strong>Scania</strong> vehicle must<br />

always control the situation and be in full<br />

command. This makes it easier to drive<br />

safely, avoid accidents and save fuel,<br />

thereby causing as little environmental<br />

impact as possible.<br />

RESEARCH AND DEVELOPMENT • SCANIA ANNUAL REPORT <strong>2004</strong> 32

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