Improvement on Cylinder-to-Cylinder Variation Using a Cylinder Balancing Control Strategy in Gasoline HCCI Engines

2010-01-0848

04/12/2010

Event
SAE 2010 World Congress & Exhibition
Authors Abstract
Content
Homogenous Charge Compression Ignition (HCCI) combustion offers significant efficiency improvements compared to conventional gasoline engines. However, due to the nature of HCCI combustion, traditional HCCI engines show some degree of sensitivity to in-cylinder thermal conditions; thus higher cylinder-to-cylinder variation was observed especially at low load and high load operating conditions due to different injector characteristics, different amount of reforming as well as non-uniform EGR distribution.
To address these issues, a cylinder balancing control strategy was developed for a multi-cylinder engine. In particular, the cylinder balancing control strategy balances CA50 and AF ratio at high load and low load conditions, respectively. Combustion noise was significantly reduced at high load while combustion stability was improved at low load with the cylinder balancing control.
Meta TagsDetails
DOI
https://doi.org/10.4271/2010-01-0848
Pages
15
Citation
Yun, H., Kang, J., Chang, M., and Najt, P., "Improvement on Cylinder-to-Cylinder Variation Using a Cylinder Balancing Control Strategy in Gasoline HCCI Engines," SAE Technical Paper 2010-01-0848, 2010, https://doi.org/10.4271/2010-01-0848.
Additional Details
Publisher
Published
Apr 12, 2010
Product Code
2010-01-0848
Content Type
Technical Paper
Language
English