Spark Advance Control Using the Ion Current and Neural Soft Sensors

1999-01-1162

03/01/1999

Event
International Congress & Exposition
Authors Abstract
Content
Two spark advance control systems are outlined; both based on feedback from nonlinear neural network soft sensors and ion current detection. One uses an estimate on the location of the pressure peak and the other uses an estimate of the location of the center of combustion. Both quantities are estimated from the ion current signal using neural networks. The estimates are correct within roughly two crank angle degrees when evaluated on a cycle to cycle basis, and roughly within one crank angle degree when the quantities are averaged over consecutive cycles.
The pressure peak detection based control system is demonstrated on a SAAB 9000 car, equipped with a 2.3 liter low-pressure turbo charged engine, during normal highway driving.
Meta TagsDetails
DOI
https://doi.org/10.4271/1999-01-1162
Pages
8
Citation
Hellring, M., Munther, T., Rögnvaldsson, T., Wickström, N. et al., "Spark Advance Control Using the Ion Current and Neural Soft Sensors," SAE Technical Paper 1999-01-1162, 1999, https://doi.org/10.4271/1999-01-1162.
Additional Details
Publisher
Published
Mar 1, 1999
Product Code
1999-01-1162
Content Type
Technical Paper
Language
English