1. PARTICULATES PROGRAM WP500
Laurent FORTI
Particulates meeting
CONCAWE - January 2003

2. WP500 - IFP Activities Vehicle selection and preparation
Fuels and lubricant
Equipment and set-up
Test protocol
Test schedule

3. Vehicle selection
4 Different engine and post-treatment technologies representative of EURO3 and may be EURO4 levels:
Gasoline vehicles :
Renault Mégane II 1.6 l coupe (IDI)
Citroen C5 2l HPI HP (DI).
Diesel vehicles :
VW Golf TDI 1.9l HP
Peugeot l HDI HP
Minimum mileage before test : 5000 km

4. Vehicle preparation
Change of the lubricant km of conditioning period
Road load setup
Change of the fuel

5. Equipment - Dilution system
Specific primary dilution system (IFP but equivalent to Dekati)
Dilution outside the exhaust line to limit pressure pulse effect and gas temperature. Moreover, the probe can be entirely dismounted for cleaning.

6. Dilution Ratio with Dekati system GOLF TDI - No catalyst
Large variations of the dilution ratio (6 to 20)

7. Dilution ratio with IFP system Peugeot 405 - No catalyst
Less variations of the dilution ratio

8. Equipment - Material & Set-up
Wet branch :
- SMPS
- DGI
- LQ1 - DC (diffusion charger Matter Engineering)
- CPC
Dry branch :
- ELPI after thermodenuder
Set-up :
Similar to the round robin set-up

9. Test protocol (Standard Particulate Protocol)
Prior to the series of tests : Assessment of thermodesorber losses :
Steady state 50 km/h, 3rd Gear - Dilution ratio set-up (10 minutes) and 120 km, 5th gear
Sampling with all instrument in dry branch (ELPI, SMPS, CPC), then in wet branch
2 days by fuel (IFP constraints)
1st day :
Cold NEDC
Hot NEDC
Artemis Urban and Road
2nd day :
Steady state measurement (50 km/h and 120 km/h)
Fuel change, vehicle conditioning, cold soak

10. Test protocol (Specific after-treatment systems)
Particulate trap :
Standard tests: Specific procedure to regenerate the trap before the series of tests (high speed and load)
Specific tests: Measurements during a regeneration phase under steady state measurement (high speed and load)
NOx Trap :
Standard tests: High load running before conditioning the vehicle (before the 3 EUDC) to remove the sulphate from the NOx trap.
Study of the regeneration strategy and measurement of particulate emissions during regeneration

11. Fuel order From the lower to the higher sulphur content
Gasoline : G3 to G1
Diesel fuel : D5 to D2
One repeat for one fuel (G3 and D5)

12. Test schedule Start the 20th of January 1 week preliminary tests
2 weeks with GOLF TDI
2 weeks with Renault Megane
3 weeks with Peugeot 307 HDI
3 weeks with Citroen C5 HPI
End : mid April