European Customer Technology Centers - Delphi
European Customer Technology Centers - Delphi
European Customer Technology Centers - Delphi
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EUROPEAN UNION<br />
2) ETC Cycle (<strong>European</strong> Transient Cycle)<br />
This cycle consists of a second-by-second sequence of transient modes.<br />
It is based on road-type-specific driving patterns of HD engines installed in trucks<br />
and buses.<br />
It is divided in three parts: 1/3 urban roads, 1/3 rural roads, 1/3 motorways.<br />
Vehicle speed, km/h<br />
100<br />
80<br />
60<br />
40<br />
20<br />
Urban<br />
Heavy Duty<br />
Rural Motorway<br />
0<br />
0 200 400 600 800 1000 1200 1400 1600 1800<br />
Time, s<br />
3) ELR Test (<strong>European</strong> Load Response)<br />
Only diesel smoke is measured. ELR cycle is defined by fixed speed sampling<br />
and a random sampling.<br />
The random sampling is represented by a random speed and by a random initial<br />
load.<br />
Smoke measurements during<br />
the sampling must not exceed<br />
20% of the highest value of<br />
close speeds or more than 5%<br />
of limit value. The biggest one<br />
is selected.<br />
Engine speed<br />
Load, %<br />
C<br />
B<br />
A<br />
0<br />
100<br />
10<br />
0<br />
Cycle 1 Cycle 2 Cycle 3 Cycle 4<br />
10s 20s<br />
20s<br />
Time, s<br />
Selected<br />
Point<br />
17
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