Patent US6715289B2 successfully refreshed from Google Patents.
US6715289B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbo-on-demand engine with cylinder deactivation
Assignee: GM Global Technology Operations LLC
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Filing: 2002-04-08
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Granted: 2004-04-06
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Expires: 2022-04-08
Abstract
Abstract An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a first turbocharger supplying air to the intake manifold, a first waste gate regulating the boost of the turbocharger, and a controller for controlling the displacement of the variable displacement internal combustion engine.
Inventors
- 👤 Christopher H. Mader
- 👤 Ko-Jen Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:45
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/18; F02B37/183; F02B37/007; F01; F01N; F01N13/00; F01N13/08; F01N13/10; F01N13/107; F02B29/00; F02B29/04; F02B29/0406; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
71 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; and a controller for controlling the displacement of said variable displacement internal combustion engine; and wherein when said cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
Claim 2
Dependent Claim
71 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; and a controller for controlling the displacement of said variable displacement internal combustion engine; and wherein when said cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
Claim 3
Dependent Claim
19 words
The engine control system of claim 1 wherein said variable displacement internal combustion engine is an overhead valve engine.
Claim 4
Dependent Claim
19 words
The engine control system of claim 1 wherein said variable displacement internal combustion engine is an overhead cam engine.
Claim 5
Dependent Claim
19 words
The engine control system of claim 1 wherein said variable displacement internal combustion engine is a six cylinder engine.
Claim 6
Dependent Claim
19 words
The engine control system of claim 1 wherein said variable displacement internal combustion engine is an eight cylinder engine.
Claim 7
Dependent Claim
79 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; a first waste gate regulating the boost of said turbocharger; and a controller for controlling the displacement of said variable displacement internal combustion engine, wherein when cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
Claim 8
Dependent Claim
79 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; a first waste gate regulating the boost of said turbocharger; and a controller for controlling the displacement of said variable displacement internal combustion engine, wherein when cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
Claim 9
Dependent Claim
18 words
The engine control system of claim 6 wherein said variable displacement internal combustion engine is a gasoline engine.
Claim 10
Dependent Claim
19 words
The engine control system of claim 6 wherein said variable displacement internal combustion engine is a six cylinder engine.
Claim 11
Dependent Claim
31 words
The engine control system of claim 6 further including a second turbocharger coupled to said intake manifold and an exhaust manifold for cylinders that are deactivated in said variable displacement engine.
Claim 12
Dependent Claim
27 words
The engine control system of claim 9 wherein said first waste gate ports exhaust to spin a turbine of said second turbocharger in a partially displaced configuration.
Claim 13
Dependent Claim
18 words
The engine control system of claim 9 wherein said first waste gate valve is a three way valve.
Claim 14
Dependent Claim
99 words
A turbocharging control system for a variable displacement engine comprising: a first group of cylinders in the variable displacement engine; a first exhaust manifold coupled to said first group of cylinders; a second group of cylinders in the variable displacement engine; a second exhaust manifold coupled to said second group of cylinders; a first turbocharger coupled to said first exhaust manifold; a second turbocharger coupled to said second exhaust manifold; and a first wastegate coupled to said first turbocharger, wherein said first waste gate gates exhaust to said second turbocharger when said engine is in a partially displaced configuration.
Claim 15
Dependent Claim
99 words
A turbocharging control system for a variable displacement engine comprising: a first group of cylinders in the variable displacement engine; a first exhaust manifold coupled to said first group of cylinders; a second group of cylinders in the variable displacement engine; a second exhaust manifold coupled to said second group of cylinders; a first turbocharger coupled to said first exhaust manifold; a second turbocharger coupled to said second exhaust manifold; and a first wastegate coupled to said first turbocharger, wherein said first waste gate gates exhaust to said second turbocharger when said engine is in a partially displaced configuration.
Claim 16
Dependent Claim
16 words
The turbocharging control system of claim 12 wherein said first wastegate is a three way valve.
Claim 17
Independent Claim
86 words
A method of controlling a variable displacement internal combustion engine comprising the steps of: measuring a variable indicative of torque for a variable displacement internal combustion engine; varying the displacement of the variable displacement internal combustion engine with reference to the variable; providing a first turbocharger; providing a second turbocharger; providing a first waste gate valve; directing engine exhaust flow from said first turbocharger to said second turbocharger with said first waste gate valve in a partially displaced configuration for the variable displacement internal combustion engine.
Claim 18
Independent Claim
86 words
A method of controlling a variable displacement internal combustion engine comprising the steps of: measuring a variable indicative of torque for a variable displacement internal combustion engine; varying the displacement of the variable displacement internal combustion engine with reference to the variable; providing a first turbocharger; providing a second turbocharger; providing a first waste gate valve; directing engine exhaust flow from said first turbocharger to said second turbocharger with said first waste gate valve in a partially displaced configuration for the variable displacement internal combustion engine.
Claim 19
Dependent Claim
89 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine, wherein cylinders of said variable displacement internal combustion engine are deactivated and reactivated in response to torque demand; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; and a controller for controlling the displacement of said variable displacement internal combustion engine; and wherein when said cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
Claim 20
Dependent Claim
89 words
An engine control system in a vehicle comprising: a variable displacement internal combustion engine, wherein cylinders of said variable displacement internal combustion engine are deactivated and reactivated in response to torque demand; an intake manifold coupled to said variable displacement internal combustion engine; a first turbocharger supplying air to said intake manifold; and a controller for controlling the displacement of said variable displacement internal combustion engine; and wherein when said cylinders of said variable displacement internal combustion engine are deactivated, air flow is substantially prevented through said deactivated cylinders.
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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) | 2007-04-06 | 2007-10-06 | 2008-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-06 | 2011-10-06 | 2012-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-06 | 2015-10-06 | 2016-04-06 | $7700.00 | Window Closed / Lapsed |