Claims
- 1. A method of detecting combustion in an internal combustion engine having a plurality of cylinders wherein an ignition control is performed being synchronized with a revolution number of the internal combustion engine, an ionic current detector installed at a plug of at least one cylinder of the plurality of cylinders, and an ECU which determines a combustion state of the cylinder based on an ionic current detect value from the ionic current detector, which comprises steps of:
- calculating an ionic current detect time during between the detection of an edge of an ignition signal of the cylinder and an edge of a next ignition signal of the cylinder by the ECU; and
- determining the combustion state of the cylinder by comparing the ionic current detect time with a predetermined value by the ECU.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2-126985 |
May 1990 |
JPX |
|
2-153992 |
Jun 1990 |
JPX |
|
Parent Case Info
This is a divisional of application Ser. No. 07/684,076 filed Apr. 12, 1991.
US Referenced Citations (5)
Divisions (1)
|
Number |
Date |
Country |
Parent |
684076 |
Apr 1991 |
|