US4653447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine
Assignee: Robert Bosch GmbH
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Filing: 1985-06-07
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Granted: 1987-03-31
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Expires: 2005-06-07
Abstract
Abstract The invention is directed to an arrangement for controlling the quantity of fuel to be injected into an internal combustion engine. The arrangement includes at least one electrically operated control device determining the beginning and/or the end and/or the duration of the injection of fuel into the internal combustion engine. The electrically operated control device is influenced in dependence on its own control response. The arrangement of the invention thus makes it possible to correct the error resulting from variations in the pickup and dropout times of the electrically operated control device. Embodiments are described which take into account static and dynamic variations of the control response of the electrically operated control device.
Inventors
- 👤 Ernst Linder
- 👤 Helmut Rembold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:45
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/20; F02D35/00; F02D35/0007; F02D2041/202; F02D2041/2055; F02D2041/2058
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
120 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantites in dependence upon said operating response; and, said control device being switchable between an open position and a closed position and having a total closed duration, said adjusting circuit means including means for adjusting at least one of said quantities in dependence upon said total closed duration of said control device.
Claim 2
Dependent Claim
120 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantites in dependence upon said operating response; and, said control device being switchable between an open position and a closed position and having a total closed duration, said adjusting circuit means including means for adjusting at least one of said quantities in dependence upon said total closed duration of said control device.
Claim 3
Dependent Claim
116 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device being switchable between an open position and a closed position and having a total opened duration, said adjusting circuit means including means for adjusting at least one of said quantities in dependence upon said total opened duration.
Claim 4
Dependent Claim
116 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device being switchable between an open position and a closed position and having a total opened duration, said adjusting circuit means including means for adjusting at least one of said quantities in dependence upon said total opened duration.
Claim 5
Dependent Claim
91 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, means for applying a theoretical operating response of said control device to form desired values.
Claim 6
Dependent Claim
91 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, means for applying a theoretical operating response of said control device to form desired values.
Claim 7
Dependent Claim
108 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel to the engine, the arrangement comprising: at least one electrically operated solenoid valve for determining at least one of the quantities of injection begin, injection end and injection duration, said solenoid valve having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, means for applying a current pulse of a predetermined duration to said solenoid valve, said duration being determined empirically by conducting tests on a plurality of said solenoid valves.
Claim 8
Dependent Claim
108 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel to the engine, the arrangement comprising: at least one electrically operated solenoid valve for determining at least one of the quantities of injection begin, injection end and injection duration, said solenoid valve having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, means for applying a current pulse of a predetermined duration to said solenoid valve, said duration being determined empirically by conducting tests on a plurality of said solenoid valves.
Claim 9
Dependent Claim
103 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device having a predetermined opening speed, said adjusting means including means for adjusting at least one of said quantities in dependence upon said opening speed.
Claim 10
Dependent Claim
103 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device having a predetermined opening speed, said adjusting means including means for adjusting at least one of said quantities in dependence upon said opening speed.
Claim 11
Dependent Claim
23 words
The arrangement of claim 5, at least one of said quantities being adjusted only when said control device is in a predetermined condition.
Claim 12
Dependent Claim
24 words
The arrangement of claim 6, said predetermined condition being selected from the group consisting of a fully closed condition and a fully opened condition.
Claim 13
Dependent Claim
102 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; a special electrically operated control device having an operating response; and, means for forming desired values from said operating response of said special electrically operated control device.
Claim 14
Dependent Claim
102 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; a special electrically operated control device having an operating response; and, means for forming desired values from said operating response of said special electrically operated control device.
Claim 15
Dependent Claim
50 words
The arrangement of claim 8, wherein said desired values are formed with the aid of said operating response of said special electrically operated control device for at least one of the following quantities of the control device: total closed duration, total opened duration, the closing speed and the opening speed.
Claim 16
Dependent Claim
27 words
The arrangement of claim 8, wherein the entire time characteristic of said operating response of said special electrically operated control device is used as a desired response.
Claim 17
Dependent Claim
103 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device having a predetermined closing speed, said adjusting means including means for adjusting at least one of said quantities in dependence upon said closing speed.
Claim 18
Dependent Claim
103 words
Arrangement for controlling the quantity of fuel to be injected into an internal combustion engine for which a pump apparatus generates the pressure for injecting the fuel, the arrangement comprising: at least one electrically operated control device for determining at least one of the quantities of injection begin, injection end and injection duration, said control device having an operating response; adjusting circuit means for adjusting one of said quantities in dependence upon said operating response; and, said control device having a predetermined closing speed, said adjusting means including means for adjusting at least one of said quantities in dependence upon said closing speed.
Claim 19
Dependent Claim
24 words
The arrangement of claim 11, wherein at least one of said quantities is adjusted during the duration of the movement of said control device.
Claim 20
Dependent Claim
23 words
The arrangement of claim 11, at least one of said quantities being adjusted only when said control device is in a predetermined condition.
Claim 21
Dependent Claim
24 words
The arrangement of claim 13, said predetermined condition being selected from the group consisting of a fully closed condition and a fully opened condition.
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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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |