Ion-Gap Sense in Misfire Detection, Knock and Engine Control 950004
The combustion of fuel inside an engine cylinder produces ions. By applying a small DC voltage across the spark gap after ignition, ion current is produced. The ion current wave form contains combustion information and is called Ion-Gap sense. Ion-Gap sense is described and can be used to detect misfire, control knock, obtain cam phasing, and detect pre-ignition. In the future, it will provide air/fuel information.
Test results on nine different engine types are summarized for misfire detection. Knock testing is reviewed for eight engines. Engine tests associated with engine control techniques have been included.
Citation: Auzins, J., Johansson, H., and Nytomt, J., "Ion-Gap Sense in Misfire Detection, Knock and Engine Control," SAE Technical Paper 950004, 1995, https://doi.org/10.4271/950004. Download Citation
Author(s):
John Auzins, Hasse Johansson, Jan Nytomt
Affiliated:
Mecel
Pages: 10
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Engine Controls 1995-SP-1082, SAE 1995 Transactions: Journal of Engines-V104-3
Related Topics:
Engine cylinders
Knock
Combustion and combustion processes
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