Estimation of Indicated Mean Effective Pressure Using Crankshaft Angular Velocity Variation

2011-32-0510

11/08/2011

Event
Small Engine Technology Conference & Exposition
Authors Abstract
Content
We have successfully developed a system to estimate Indicated Mean Effective Pressure (hereafter "IMEP") by detecting the crankshaft angular velocity variation during one cycle of a four-stroke single-cylinder gasoline engine. The system has been commercially applied to the spark-ignition timing control system for small-displacement motorcycle engines. The determined amplitude of crankshaft angular velocity variation during one cycle is defined as "delta omega (Δω)." The relationship between Δω and IMEP has been experimentally examined using engine unit bench tests and actual motorcycles. From the experimental results, it was confirmed that Δω represents IMEP. This paper discusses the experimental study on the estimation of IMEP using crankshaft angular velocity variation.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-32-0510
Pages
9
Citation
Nishida, K., Kaneko, T., Takahashi, Y., and Aoki, K., "Estimation of Indicated Mean Effective Pressure Using Crankshaft Angular Velocity Variation," SAE Technical Paper 2011-32-0510, 2011, https://doi.org/10.4271/2011-32-0510.
Additional Details
Publisher
Published
Nov 8, 2011
Product Code
2011-32-0510
Content Type
Technical Paper
Language
English