Ionization control for automotive ignition system
Patent
·
OSTI ID:5577426
This paper describes an internal combustion engine having N spark plugs having ionization times that are controllable by the duration of current dwell in at least one ignition coil, a method of controlling the ionization time of the spark plugs. It comprises: measuring the ionization times (Tl-Tn) of the spark plugs; providing a reference ionization time; using the measured ionization times and the reference ionization time to develop an error signal that is representative of an undesired deviation from the reference ionization time; and adjusting the duration of the current dwell time in the ignition coil so as to change ionization time and reduce the size of the error signal.
- Assignee:
- Motorola, Inc., Schaumburg, IL (United States)
- Patent Number(s):
- US 5054461; A
- Application Number:
- PPN: US 7-636351
- OSTI ID:
- 5577426
- Country of Publication:
- United States
- Language:
- English
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