Evaluation of a FTIR Emission Measurement System for Legislated Emissions Using a SI Car The University of Leeds

Format:

Conference/Event

Author/Creator:

Li, Hu, author.

Conference Name:

Powertrain & Fluid Systems Conference and Exhibition (2006-10-16 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2006

Summary:

A series of chassis dynamometer test trials were conducted to assess the performance of a Fourier Transform Infra Red (FTIR) system developed for on-road vehicle exhaust emissions measurements. Trials used a EURO 1 emission compliant SI passenger car which, alongside the FTIR, was instrumented to allow the routine logging of engine speed, road speed, throttle position, air-fuel ratio, air flow and fuel flow in addition to engine, exhaust and catalyst temperatures. The chassis dynamometer facility incorporated an industry standard' measurement system comprising MEXA7400 gas analyzer and CVS bag sampling which was the benchmark' for the evaluation of FTIR legislated gas-phase emissions (CO, NOx, THC and CO2) measurements.Initial steady state measurements demonstrated strong correlations for CO, NOx and THC (R2 of 0.99, 0.97 0.99, respectively) and a good correlation for CO2 (R2 = 0.92). Subsequent transient and total mass emissions measurements from replicate samplings of four different driving cycles (two standard cycles, FTP75 and NEDC, and two novel cycles based on real-world data collected in Leeds) also show good response of FTIR and satisfied agreement between the FTIR and CVS bag sampling measurements.In general, the trial results demonstrate that the on-board FTIR emission measurement system provides reliable in-journey emissions data

Notes:

Vendor supplied data

Publisher Number:

2006-01-3368

Access Restriction:

Restricted for use by site license