Patent US4643153A successfully refreshed from Google Patents.
US4643153A
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Electronic arrangement for generating a fuel metering signal for an internal combustion engine
Assignee: Robert Bosch GmbH
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Filing: 1985-09-19
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Granted: 1987-02-17
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Expires: 2005-09-19
Abstract
Abstract An electronic arrangement is disclosed for generating a fuel metering signal which is formed by applying the formula ti=f[x n , g (U Batt , y)]. Accordingly, the battery voltage is corrected by means of a characteristic field. In this arrangement, allowance can be made for particularly speed and/or load dependent values in addition to the battery voltage.
Inventors
- 👤 Albrecht Clement
- 👤 Gustav Virgilio
- 👤 Hugo Weller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:00
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/24; F02D41/2406; F02D41/30; F02D41/3005; F02D2200/00; F02D2200/50; F02D2200/503
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
An electronic arrangement for generating a fuel metering signal for an internal combustion engine in dependence upon operating characteristic quantities and a battery voltage correction, the arrangement comprising: circuit means for forming the metering signal in accordance with the equation ti=f[x.sub.n, g(U.sub.Batt, y)] wherein x n is at least dependent upon load and rotational speed, U Batt is the battery voltage and y is dependent upon operating characteristic quantities.
Claim 2
Dependent Claim
69 words
An electronic arrangement for generating a fuel metering signal for an internal combustion engine in dependence upon operating characteristic quantities and a battery voltage correction, the arrangement comprising: circuit means for forming the metering signal in accordance with the equation ti=f[x.sub.n, g(U.sub.Batt, y)] wherein x n is at least dependent upon load and rotational speed, U Batt is the battery voltage and y is dependent upon operating characteristic quantities.
Claim 3
Dependent Claim
28 words
The electronic arrangement of claim 1, said value y being dependent upon at least one of the quantities of the group consisting of temperature, rotational speed and load.
Claim 4
Dependent Claim
17 words
The electronic arrangement of claim 1, said value y being dependent upon the basic injection time tio.
Claim 5
Dependent Claim
21 words
The electronic arrangement of claim 1, said function g (U Batt , y) being determined by means of a characteristic field.
Claim 6
Dependent Claim
33 words
The electronic arrangement of claim 1, comprising means for forming a basic metering signal; and, correction means for additively correcting said basic metering signal by means of the function g(U Batt , y).
Claim 7
Dependent Claim
33 words
The electronic arrangement of claim 1, comprising means for forming a basic metering signal; and, correction means for multiplicatively correcting said basic metering signal by means of the function g(U Batt , y).
Claim 8
Dependent Claim
35 words
The electronic arrangement of claim 1, comprising means for forming a basic metering signal; and, correction means for additively and multiplicatively correcting said basic metering signal by means of the function g(U Batt , y).
References Cited (Backward Citations)
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JPS5828540A
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US4515130A
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US4543937A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |