Mapping Work on 2.1 Litre Petrol Engine

962479

10/01/1996

Event
Symposium on International Automotive Technology
Authors Abstract
Content
This paper describes the engine mapping work carried out on a 2.1 litre carburetted petrol engine.The purpose of this work was to improve upon the emission levels of the engine to meet 1996 emission norms with sufficient margin and to achieve best fuel economy possible. This paper deals with the strategy for the selection of speed load points required for mapping depending on engine operating zones, engine base data collection, methodology followed in engine mapping, variation of engine performance and emissions with respect to air/fuel ratio and spark timing etc. Further the mass emission predictions for different strategies like leaning the air/fuel mixture, retarding the ignition timing etc. are also discussed. Recalibration of the carburettor based on the above findings, its effect on vehicle performance are dealt with. Finally, the comparison between predicted and actual mass emission figures, driveability and fuel consumption achieved along with the conclusions derived are also discussed.
Meta TagsDetails
DOI
https://doi.org/10.4271/962479
Pages
7
Citation
Babu, K., Thite, U., Marathe, M., Soman, R. et al., "Mapping Work on 2.1 Litre Petrol Engine," SAE Technical Paper 962479, 1996, https://doi.org/10.4271/962479.
Additional Details
Publisher
Published
Oct 1, 1996
Product Code
962479
Content Type
Technical Paper
Language
English