EU-PEMS Project meeting Ispra, 11th of April, 2005 AGENDA Point “Time alignement” PEMS EC DG JRC – Ispra - April 11, 2005

Different Time "Sources" Response time Time Resolution Time Alignement PEMS EC DG JRC – Ispra - April 11, 2005

Different Time "Sources" Air, Fuel, Power demand Exhaust Engine ECU Torque, Speed Analyzer CO(t4), … NOx(t5), Torque (t0), Speed(t1) Flow(t3) PEMS EC DG JRC – Ispra - April 11, 2005

Response Time T10 T50 T90 T = 0 Delay time PEMS EC DG JRC – Ispra - April 11, 2005

Time Resolution PEMS EC DG JRC – Ispra - April 11, 2005

How does a different time shift influence the mass specific emissions ? PEMS EC DG JRC – Ispra - April 11, 2005

How to find R2 PEMS EC DG JRC – Ispra - April 11, 2005

Correlation [i] = ∑ CO2[m] • flowrate [i+m] PEMS EC DG JRC – Ispra - April 11, 2005

Correlation PEMS EC DG JRC – Ispra - April 11, 2005

CO2 PEMS EC DG JRC – Ispra - April 11, 2005

CO2 PEMS EC DG JRC – Ispra - April 11, 2005

CO PEMS EC DG JRC – Ispra - April 11, 2005

PEMS EC DG JRC – Ispra - April 11, 2005

Contribution to cumulative mass: 7% PEMS EC DG JRC – Ispra - April 11, 2005

x 2.5 x 2.5 PEMS EC DG JRC – Ispra - April 11, 2005

PEMS EC DG JRC – Ispra - April 11, 2005