- Patent Title: Method and system for monitoring an engine cylinder in an internal combustion engine, a method and device for controlling combustion in said engine cylinder and an ignition apparatus for an internal combustion engine
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Application No.: US17052007Application Date: 2019-04-23
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Publication No.: US11371446B2Publication Date: 2022-06-28
- Inventor: Francesco Sanarico , Pasquale Forte , Alberto Grimaldi , Roberto Pittatore
- Applicant: ELDOR CORPORATION S.P.A. , FPT INDUSTRIAL S.P.A.
- Applicant Address: IT Orsenigo; IT Turin
- Assignee: ELDOR CORPORATION S.P.A.,FPT INDUSTRIAL S.P.A.
- Current Assignee: ELDOR CORPORATION S.P.A.,FPT INDUSTRIAL S.P.A.
- Current Assignee Address: IT Orsenigo; IT Turin
- Agency: Shuttleworth & Ingersoll, PLC
- Agent Timothy Klima
- Priority: IT102018000005010 20180502
- International Application: PCT/IB2019/053327 WO 20190423
- International Announcement: WO2019/211703 WO 20191107
- Main IPC: F02D35/02
- IPC: F02D35/02 ; F02D41/00 ; F02P5/152 ; F02P17/12
Abstract:
A method for monitoring an engine cylinder in an internal combustion engine includes, for each engine cycle, detection of the ionisation current generated in the cylinder in a predetermined time interval of a combustion cycle, generation of a signal representing the ionisation current and comparing a maximum value of the signal with a threshold value. Successively, the value of one or more parameters associated with the signal can be changed with respect to an equal number of corresponding reference values when the maximum value of the signal exceeds the threshold value, to reduce the maximum value of the signal in the time interval of a successive combustion cycle. The presence of water in the cylinder can be determined when the maximum value of the signal exceeds the threshold value for a predetermined first number of combustion cycles occurring within a predetermined period of time.
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