Division 3.4 Calculation of available powerF1
The available power for each possible gear i and each vehicle speed value of the cycle trace vi shall be calculated using the following equation:
Pavailable_i,j = Pwot (ni,j) × (1 – (SM + ASM))
where:
is the rated power, kW;
is the power available at ni,j at full load condition from the full load power curve;
is a safety margin accounting for the difference between the stationary full load condition power curve and the power available during transition conditions. SM is set to 10 per cent;
is an additional power safety margin which may be applied at the request of the manufacturer.
When requested, the manufacturer shall provide the ASM values (in per cent reduction of the wot power) together with data sets for Pwot(n) as shown by the example in Table A2/1. Linear interpolation shall be used between consecutive data points. ASM is limited to 50 per cent.
The application of an ASM requires the approval of the approval authority.
Table A2/1
| n | Pwot | SM per cent | ASM per cent | Pavailable |
|---|---|---|---|---|
| min–1 | kW | kW | ||
| 700 | 6,3 | 10,0 | 20,0 | 4,4 |
| 1 000 | 15,7 | 10,0 | 20,0 | 11,0 |
| 1 500 | 32,3 | 10,0 | 15,0 | 24,2 |
| 1 800 | 56,6 | 10,0 | 10,0 | 45,3 |
| 1 900 | 59,7 | 10,0 | 5,0 | 50,8 |
| 2 000 | 62,9 | 10,0 | 0,0 | 56,6 |
| 3 000 | 94,3 | 10,0 | 0,0 | 84,9 |
| 4 000 | 125,7 | 10,0 | 0,0 | 113,2 |
| 5 000 | 157,2 | 10,0 | 0,0 | 141,5 |
| 5 700 | 179,2 | 10,0 | 0,0 | 161,3 |
| 5 800 | 180,1 | 10,0 | 0,0 | 162,1 |
| 6 000 | 174,7 | 10,0 | 0,0 | 157,3 |
| 6 200 | 169,0 | 10,0 | 0,0 | 152,1 |
| 6 400 | 164,3 | 10,0 | 0,0 | 147,8 |
| 6 600 | 156,4 | 10,0 | 0,0 | 140,8 |