European Customer Technology Centers - Delphi
European Customer Technology Centers - Delphi
European Customer Technology Centers - Delphi
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EUROPEAN UNION<br />
Test cycle EURO 1 and 2 / ECE R-49 or 13 Mode Cycle<br />
It is a steady-state diesel engine test cycle used for TA emission testing of HD<br />
highway engines up to Euro 2 standards. Effective October 2000, the R49 cycle<br />
was replaced by the ESC cycle.<br />
This cycle is operated through a sequence of 13 speed and load conditions. The<br />
final result is a weighted average of the 13 modes.<br />
Heavy Duty<br />
Load (BMEP), %<br />
100<br />
80<br />
60<br />
40<br />
6<br />
5<br />
4<br />
25%<br />
8%<br />
8%<br />
10%<br />
8<br />
20<br />
3 8% 11<br />
2%<br />
25% 2 8% 12<br />
2%<br />
1,7,13<br />
0 60 80 100<br />
Engine Speed, %<br />
9<br />
10<br />
2%<br />
2%<br />
Mode # Speed Load, % Weighting Factors<br />
1 Idle - 0.25/3<br />
2 10 0.08<br />
3 25 0.08<br />
4 Max Torque Speed 50 0.08<br />
5 75 0.08<br />
6 100 0.25<br />
7 Idle - 0.25/3<br />
8 100 0.10<br />
9 75 0.02<br />
10 Rated Power Speed 50 0.02<br />
11 25 0.02<br />
12 10 0.02<br />
13 Idle - 0.25/3<br />
15
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