Patent US4890033A successfully refreshed from Google Patents.
US5680842A
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Method of controlling the fuel injection in a diesel engine
Assignee: Mercedes Benz Group AG
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Filing: 1996-09-05
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Granted: 1997-10-28
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Expires: 2016-09-05
Abstract
Abstract In a method of controlling the fuel injection of a Diesel engine wherein injection parameters are adjusted depending on a group of input values including at least engine speed and desired engine torque, the injection timing and injection duration are adjusted by additionally using at least the time gradient of the desired engine torque among the fuel injection parameters.
Inventors
- 👤 Wolfram Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:37
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/30; F02D41/38; F02D41/40; F02D41/401; F02B; F02B3/00; F02B3/06; F02D2250/00; F02D2250/18; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A method of controlling the fuel injection of a Diesel engine, wherein injection parameters are adjusted depending on a group of input values including at least engine speed and desired engine torque, and additionally depending on the time gradient of the desired engine torque, and wherein the time gradient of at least one of said desired engine torque and engine speed is employed to influence the level of threshold values passage of which causes a change in the setting for at least one of the injection timing and the injection duration to swith to a certain or to a variable time period.
Claim 2
Independent Claim
102 words
A method of controlling the fuel injection of a Diesel engine, wherein injection parameters are adjusted depending on a group of input values including at least engine speed and desired engine torque, and additionally depending on the time gradient of the desired engine torque, and wherein the time gradient of at least one of said desired engine torque and engine speed is employed to influence the level of threshold values passage of which causes a change in the setting for at least one of the injection timing and the injection duration to swith to a certain or to a variable time period.
Claim 3
Dependent Claim
74 words
In a method of controlling the fuel injection of a Diesel engine, wherein injection parameters are adjusted depending on a group of input values including at least engine speed and desired engine torque, and additionally depending on the time gradient of the desired engine torque and, for adjusting the injection timing and the injection duration, the time gradient of at least the engine speed is included in the parameters for controlling the fuel injection.
Claim 4
Dependent Claim
74 words
In a method of controlling the fuel injection of a Diesel engine, wherein injection parameters are adjusted depending on a group of input values including at least engine speed and desired engine torque, and additionally depending on the time gradient of the desired engine torque and, for adjusting the injection timing and the injection duration, the time gradient of at least the engine speed is included in the parameters for controlling the fuel injection.
References Cited (Backward Citations)
US4346688A
Cited
US4601270A
Cited
US4690114A
Cited
US4917063A
Cited
DE3705278A1
Cited
EP0278990A1
Cited
US4881404A
Cited
US5067461A
Cited
US4926636A
Cited
US5036815A
Cited
US5111789A
Cited
US5207198A
Cited
DE3925877A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-10-27 | 2001-04-28 | 2001-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-27 | 2005-04-28 | 2005-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-27 | 2009-04-28 | 2009-10-28 | $7700.00 | Window Closed / Lapsed |