Patent US5188079A successfully refreshed from Google Patents.
US5188079A
Expired / Lapsed
US
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Electronic control device for an internal combustion engine
Assignee: Mitsubishi Electric Corp
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Filing: 1992-02-14
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Granted: 1993-02-23
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Expires: 2012-02-14
Abstract
Abstract An electronic control device for an internal combustion engine which comprises: means of detecting a first crank angle position, SGTT and a second crank angle position, SGTL provided at a position on advance ignition angle side of the first crank angle position; means of calculating and setting the target ignition timing at every SGTL; means of determining a restriction time corresponding with a time interval between the SGTT and a target ignition timing when the target ignition timing is set at a timing on retarded ignition angle side of the SGTT; means of determining whether an ignition is generated after the restriction time elapses; and means of forcibly generating the ignition signal when the ignition is determined not to be generated.
Inventors
- 👤 Katsuhiko Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:23
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/145; F02P5/15; F02P5/1502; F02P5/1504; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/06; F02P7/00; F02P7/06; F02P7/077; F02P7/0775; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
An electronic control device for an internal combustion engine which comprises: means of detecting a first crank angle position (SGTT) and a second crank angle position (SGTL) provided at a position on advance ignition angle side of the first crank angle position; means of calculating a target ignition timing at every SGTL; means of setting the target ignition timing at every SGTL or at every SGTT depending on a setting condition; and means of correcting the target ignition timing based on a time interval between a first detecting timing of the SGTL and a second detecting timing of the SGTT.
Claim 2
Dependent Claim
100 words
An electronic control device for an internal combustion engine which comprises: means of detecting a first crank angle position (SGTT) and a second crank angle position (SGTL) provided at a position on advance ignition angle side of the first crank angle position; means of calculating a target ignition timing at every SGTL; means of setting the target ignition timing at every SGTL or at every SGTT depending on a setting condition; and means of correcting the target ignition timing based on a time interval between a first detecting timing of the SGTL and a second detecting timing of the SGTT.
Claim 3
Dependent Claim
121 words
An electronic control device for an internal combustion engine which comprises: means of detecting a first crank angle position (SGTT) and a second crank angle position (SGTL) provided at a position on advance ignition angle side of the first crank angle position; means of calculating and setting the target ignition timing at every SGTL; means of determining a restriction time corresponding with a time interval between the SGTT and a target ignition timing when the target ignition timing is set at a timing on retarded ignition angle side of the SGTT; means of determining whether an ignition is generated after the restriction time elapses; and means of forcibly generating the ignition signal when the ignition is determined not to be generated.
Claim 4
Dependent Claim
121 words
An electronic control device for an internal combustion engine which comprises: means of detecting a first crank angle position (SGTT) and a second crank angle position (SGTL) provided at a position on advance ignition angle side of the first crank angle position; means of calculating and setting the target ignition timing at every SGTL; means of determining a restriction time corresponding with a time interval between the SGTT and a target ignition timing when the target ignition timing is set at a timing on retarded ignition angle side of the SGTT; means of determining whether an ignition is generated after the restriction time elapses; and means of forcibly generating the ignition signal when the ignition is determined not to be generated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |