Browse Publications Technical Papers 2005-01-3897
2005-10-24

Matching Optimum for Low HC and CO Emissions at Warm-up Phase in an LPG EFI Small SI Engine 2005-01-3897

Based on a 125cm3 single cylinder SI engine, the designated idle speed was controlled by adjusting of cycle ignition advance angle. By analyzing the effects of different idle speed and throttle open position on three way catalyst (TWC) light-off time and conversion efficiency of HC and CO emissions, combined with the corresponding total HC and CO emissions level, the optimum idle speed and throttle open position at engine's warm-up phase were found by the matching optimum. The present method for engine control strategy is helpful to optimize the warm-up phase emission levels in SI engine with LPG fuel.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Comparison of AFR Calculation Methods Using Gas Analysis and Mass Flow Measurement

971013

View Details

TECHNICAL PAPER

Performances and Emissions Improvement of an S.I. Engine Fuelled by LPG/Gasoline Mixtures

2010-01-0615

View Details

TECHNICAL PAPER

Fuel and Engine Effects on Rich-Combustion Products as an Enabler of In-Cylinder Reforming

2019-01-1144

View Details

X