A Study of the Half Order Modulation Control for Diesel Combustion Noise by Using Model Based Controller Design

2019-01-1416

03/25/2019

Event
Asia-Pacific Automotive Engineering Conference
Authors Abstract
Content
This model based investigation is carried out in order to control the half order modulation for diesel engines using by virtual calibration approach and proposes a feedback control strategy to mitigate cylinder to cylinder imbalance from asymmetric cylinders torque production. Combustion heat release analysis is performed on test data to understand the root cause of observed cylinder to cylinder pressure variations. The injected fuel variations are shown to cause the observed pressure variations between cylinders. A feedback control strategy based on measured crank shaft position is devised to control the half order modulation to balance the combustion pressure profile between cylinders. This control strategy is implemented in Simulink and is tested in closed-loop with the diesel engine model in AMESim. The closed-loop performance indicates that the half order modulation is considerably improved while having minimal impact on the fuel consumption.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-1416
Pages
7
Citation
Lee, K., Nam, C., Kwon, O., Moon, J. et al., "A Study of the Half Order Modulation Control for Diesel Combustion Noise by Using Model Based Controller Design," SAE Technical Paper 2019-01-1416, 2019, https://doi.org/10.4271/2019-01-1416.
Additional Details
Publisher
Published
Mar 25, 2019
Product Code
2019-01-1416
Content Type
Technical Paper
Language
English