Cutting-out cylinders

Industry

CPC
F02D13/06

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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02DCONTROLLING COMBUSTION ENGINES F02D13/00Controlling the engine output power by varying inlet or exhaust valve operating characteristics

Current Industry

F02D13/06Cutting-out cylinders

Industries

Patents Grantslast 30 patents

Information Patent Grant
Diesel engine cylinder deactivation modes
- Patent number 12,104,542
- Issue date Oct 1, 2024
- EATON INTELLIGENT POWER LIMITED
- James E. McCarthy
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Control unit and method for operating a hybrid drive
- Patent number 12,055,104
- Issue date Aug 6, 2024
- Bayerische Motoren Werke Aktiengesellschaft
- Michael Etzel
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Internal combustion engine powerplant having high efficiency waste...
- Patent number 12,012,091
- Issue date Jun 18, 2024
- Thermal Power Recovery LLC
- James V. Harmon
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Valvetrain with variable valve actuation
- Patent number 12,006,850
- Issue date Jun 11, 2024
- EATON INTELLIGENT POWER LIMITED
- James E. McCarthy
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Direct-acting solenoid having variable triggering timing for electr...
- Patent number 11,982,211
- Issue date May 14, 2024
- EATON INTELLIGENT POWER LIMITED
- Andrei D. Radulescu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust valve failure diagnostics and management
- Patent number 11,959,432
- Issue date Apr 16, 2024
- Tula Technology, Inc.
- Robert C. Wang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Port injection system for reduction of particulates from turbocharg...
- Patent number 11,959,428
- Issue date Apr 16, 2024
- Ethanol Boosting Systems, LLC
- Daniel R. Cohn
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Dynamic cylinder deactivation life factor to modify cylinder deacti...
- Patent number 11,933,202
- Issue date Mar 19, 2024
- Cummins Inc.
- Timothy R. Frazier
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust pressure pulse management method to raise exhaust temperatu...
- Patent number 11,933,233
- Issue date Mar 19, 2024
- Saudi Arabian Oil Company
- Praveen Kumar
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Smart firing pattern selection for skip fire capable engines
- Patent number 11,905,899
- Issue date Feb 20, 2024
- FCA US LLC
- Srihari Kalluri
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine-equipped vehicle
- Patent number 11,873,769
- Issue date Jan 16, 2024
- Kubota Corporation
- Michisuke Iga
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and methods to minimize emissions spikes when reactivating...
- Patent number 11,859,569
- Issue date Jan 2, 2024
- Cummins Inc.
- J. Steven Kolhouse
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Methods for a road surface metric
- Patent number 11,859,571
- Issue date Jan 2, 2024
- Ford Global Technologies, LLC
- John E. Rollinger
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Methods for re-combustion in engines
- Patent number 11,840,969
- Issue date Dec 12, 2023
- Ford Global Technologies, LLC
- Eric Matthew Kurtz
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Controller and a method for controlling an internal combustion engine
- Patent number 11,767,800
- Issue date Sep 26, 2023
- Jaguar Land Rover Limited
- James Hill
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine
- Patent number 11,767,801
- Issue date Sep 26, 2023
- INNIO Jenbacher GmbH & Co OG
- Johannes Huber
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Dynamic skip fire transitions for fixed CDA engines
- Patent number 11,761,395
- Issue date Sep 19, 2023
- Tula Technology, Inc.
- Vijay Srinivasan
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method and device for checking the state of the outlet valves of an...
- Patent number 11,761,397
- Issue date Sep 19, 2023
- Vitesco Technologies GmbH
- Tobias Braun
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Control apparatus for hybrid electric vehicle
- Patent number 11,732,662
- Issue date Aug 22, 2023
- Toyota Jidosha Kabushiki Kaisha
- Yoshinori Fujitake
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cyclical applications for internal combustion engines with cylinder...
- Patent number 11,680,532
- Issue date Jun 20, 2023
- Cummins Inc.
- Jennifer Kay Light-Holets
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
On board diagnostic method for electromagnetic latch assembly
- Patent number 11,680,535
- Issue date Jun 20, 2023
- EATON INTELLIGENT POWER LIMITED
- Dale Arden Stretch
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Systems and methods of cylinder deactivation in high-temperature mi...
- Patent number 11,674,462
- Issue date Jun 13, 2023
- Clearflame Engines, Inc.
- Julie Blumreiter
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Device and method for cold testing engine component operation
- Patent number 11,644,384
- Issue date May 9, 2023
- Ford Motor Company
- David J. Chesney
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Methods and system for operating skipped cylinders to provide secon...
- Patent number 11,635,004
- Issue date Apr 25, 2023
- Ford Global Technologies, LLC
- Rani Kiwan
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Port injection system for reduction of particulates from turbocharg...
- Patent number 11,624,328
- Issue date Apr 11, 2023
- Ethanol Boosting Systems, Inc.
- Daniel R. Cohn
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust valve failure diagnostics and management
- Patent number 11,624,335
- Issue date Apr 11, 2023
- Tula Technology, Inc.
- Robert C. Wang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Optimizing combustion recipes to improve engine performance and emi...
- Patent number 11,619,187
- Issue date Apr 4, 2023
- Tula Technology, Inc.
- Louis J. Serrano
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Methods and system for arbitrating fuel cut out for a hybrid vehicle
- Patent number 11,597,374
- Issue date Mar 7, 2023
- Ford Global Technologies, LLC
- Alec Bolthouse
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Methods for re-combustion in engines
- Patent number 11,585,284
- Issue date Feb 21, 2023
- Ford Global Technologies, LLC
- Eric Matthew Kurtz
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Friction mitigation in cylinder deactivation
- Patent number 11,578,672
- Issue date Feb 14, 2023
- EATON INTELLIGENT POWER LIMITED
- James E. McCarthy
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
CONTROLLER AND METHOD FOR CONTROLLING OPERATION OF A DIRECT INJECTI...
- Publication number 20240254932
- Publication date Aug 1, 2024
- JAGUAR LAND ROVER LIMITED
- Adam MOORCROFT
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE CONTROL DEVICE
- Publication number 20240209804
- Publication date Jun 27, 2024
- Isuzu Motors Limited
- Atsushi EBE
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DYNAMIC CYLINDER DEACTIVATION LIFE FACTOR TO MODIFY CYLINDER DEACTI...
- Publication number 20240183290
- Publication date Jun 6, 2024
- Cummins Inc.
- Timothy R. Frazier
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
SYSTEM FACILITATING CYLINDER DEACTIVATION AND 1.5-STROKE ENGINE BRA...
- Publication number 20240183291
- Publication date Jun 6, 2024
- JACOBS VEHICLE SYSTEMS, INC.
- G. Michael GRON
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
SHUTDOWN CONTROL OF INTERNAL COMBUSTION ENGINE COMPRISING LOST MOTI...
- Publication number 20240175403
- Publication date May 30, 2024
- JACOBS VEHICLE SYSTEMS, INC.
- Robb JANAK
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
SYSTEMS AND METHODS OF CYLINDER DEACTIVATION IN HIGH-TEMPERATURE MI...
- Publication number 20240102426
- Publication date Mar 28, 2024
- ClearFlame Engines, Inc.
- Julie BLUMREITER
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ROBUST GASOLINE PARTICULATE FILTER CONTROL WITH FULL CYLINDER DEACT...
- Publication number 20230406285
- Publication date Dec 21, 2023
- Ben T Dean
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD FOR CONTROLLING THE OPERATION OF AN ENGINE SYSTEM
- Publication number 20230349337
- Publication date Nov 2, 2023
- VOLVO TRUCK CORPORATION
- Johan DAHL
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTERNAL COMBUSTION ENGINE POWERPLANT HAVING HIGH EFFICIENCY WASTE...
- Publication number 20230331214
- Publication date Oct 19, 2023
- THERMAL POWER RECOVERY LLC
- James V. Harmon
- B60 - VEHICLES IN GENERAL
Information Patent Application
TAPPET ASSEMBLY FOR VALVE LIFT PROFILE MODIFICATION
- Publication number 20230272726
- Publication date Aug 31, 2023
- Cummins Inc.
- Adam C. Cecil
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST VALVE FAILURE DIAGNOSTICS AND MANAGEMENT
- Publication number 20230220810
- Publication date Jul 13, 2023
- TULA TECHNOLOGY, INC.
- Robert C. WANG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INTERNAL COMBUSTION ENGINE
- Publication number 20230141267
- Publication date May 11, 2023
- INNIO Jenbacher GmbH & Co OG
- Johannes Huber
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS FOR RE-COMBUSTION IN ENGINES
- Publication number 20230124649
- Publication date Apr 20, 2023
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Eric Matthew Kurtz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
APPARATUS, SYSTEM, AND METHOD FOR SHUTDOWN OF INTERNAL COMBUSTION E...
- Publication number 20230065228
- Publication date Mar 2, 2023
- Cummins Inc.
- Simon Anthony Burge
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS FOR RE-COMBUSTION IN ENGINES
- Publication number 20230033813
- Publication date Feb 2, 2023
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Eric Matthew Kurtz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DYNAMIC CYLINDER DEACTIVATION LIFE FACTOR TO MODIFY CYLINDER DEACTI...
- Publication number 20220364486
- Publication date Nov 17, 2022
- Cummins Inc.
- Timothy R. Frazier
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS AND SYSTEM FOR OPERATING SKIPPED CYLINDERS TO PROVIDE SECON...
- Publication number 20220333509
- Publication date Oct 20, 2022
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Rani Kiwan
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTERNAL COMBUSTION ENGINE
- Publication number 20220333539
- Publication date Oct 20, 2022
- INNIO Jenbacher GmbH & Co OG
- Johannes Huber
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR FUEL POST INJECTION TIMING
- Publication number 20220282678
- Publication date Sep 8, 2022
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Eric Kurtz
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
VALVETRAIN WITH VARIABLE VALVE ACTUATION
- Publication number 20220268182
- Publication date Aug 25, 2022
- Eaton Intelligent Power Limited
- James E. McCarthy
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DYNAMIC SKIP FIRE TRANSITIONS FOR FIXED CDA ENGINES
- Publication number 20220268227
- Publication date Aug 25, 2022
- TULA TECHNOLOGY, INC.
- Vijay SRINIVASAN
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
A CONTROLLER AND A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION EN...
- Publication number 20220268226
- Publication date Aug 25, 2022
- Jaguar Land Rover Limited
- James HILL
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
OPTIMIZING COMBUSTION RECIPES TO IMPROVE ENGINE PERFORMANCE AND EMI...
- Publication number 20220228538
- Publication date Jul 21, 2022
- TULA TECHNOLOGY, INC.
- Louis J. SERRANO
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST VALVE FAILURE DIAGNOSTICS AND MANAGEMENT
- Publication number 20220220919
- Publication date Jul 14, 2022
- TULA TECHNOLOGY, INC.
- Robert C. WANG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE-EQUIPPED VEHICLE
- Publication number 20220205400
- Publication date Jun 30, 2022
- KUBOTA CORPORATION
- Michisuke IGA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR SELECTIVELY ACTIVATING ENGINE CYLINDERS TO...
- Publication number 20220205401
- Publication date Jun 30, 2022
- Cummins Inc.
- J. Steven Kolhouse
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS AND SYSTEMS FOR ENGINE BRAKING WITH REDUCED NOISE, VIBRATIO...
- Publication number 20220178314
- Publication date Jun 9, 2022
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Douglas Martin
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEM AND METHOD FOR DIAGNOSING CYLINDER DEACTIVATION
- Publication number 20220112851
- Publication date Apr 14, 2022
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Adam Krach
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
METHODS AND SYSTEM FOR ARBITRATING FUEL CUT OUT FOR A HYBRID VEHICLE
- Publication number 20220073050
- Publication date Mar 10, 2022
- FORD GLOBAL TECHNOLOGIES, L.L.C.
- Alec Bolthouse
- B60 - VEHICLES IN GENERAL
Information Patent Application
PARTICULATE FILTER SOOT MANAGEMENT FOR INTERNAL COMBUSTION ENGINES
- Publication number 20220065151
- Publication date Mar 3, 2022
- TULA TECHNOLOGY, INC.
- Shahaboddin Owlia
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Cutting-out cylinders

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Diesel engine cylinder deactivation modes

Control unit and method for operating a hybrid drive

Internal combustion engine powerplant having high efficiency waste...

Valvetrain with variable valve actuation

Direct-acting solenoid having variable triggering timing for electr...

Exhaust valve failure diagnostics and management

Port injection system for reduction of particulates from turbocharg...

Dynamic cylinder deactivation life factor to modify cylinder deacti...

Exhaust pressure pulse management method to raise exhaust temperatu...

Smart firing pattern selection for skip fire capable engines

Engine-equipped vehicle

Systems and methods to minimize emissions spikes when reactivating...

Methods for a road surface metric

Methods for re-combustion in engines

Controller and a method for controlling an internal combustion engine

Internal combustion engine

Dynamic skip fire transitions for fixed CDA engines

Method and device for checking the state of the outlet valves of an...

Control apparatus for hybrid electric vehicle

Cyclical applications for internal combustion engines with cylinder...

On board diagnostic method for electromagnetic latch assembly

Systems and methods of cylinder deactivation in high-temperature mi...

Device and method for cold testing engine component operation

Methods and system for operating skipped cylinders to provide secon...

Port injection system for reduction of particulates from turbocharg...

Exhaust valve failure diagnostics and management

Optimizing combustion recipes to improve engine performance and emi...

Methods and system for arbitrating fuel cut out for a hybrid vehicle

Methods for re-combustion in engines

Friction mitigation in cylinder deactivation

Patents Applicationslast 30 patents

CONTROLLER AND METHOD FOR CONTROLLING OPERATION OF A DIRECT INJECTI...

ENGINE CONTROL DEVICE

DYNAMIC CYLINDER DEACTIVATION LIFE FACTOR TO MODIFY CYLINDER DEACTI...

SYSTEM FACILITATING CYLINDER DEACTIVATION AND 1.5-STROKE ENGINE BRA...

SHUTDOWN CONTROL OF INTERNAL COMBUSTION ENGINE COMPRISING LOST MOTI...

SYSTEMS AND METHODS OF CYLINDER DEACTIVATION IN HIGH-TEMPERATURE MI...

ROBUST GASOLINE PARTICULATE FILTER CONTROL WITH FULL CYLINDER DEACT...

METHOD FOR CONTROLLING THE OPERATION OF AN ENGINE SYSTEM

INTERNAL COMBUSTION ENGINE POWERPLANT HAVING HIGH EFFICIENCY WASTE...

TAPPET ASSEMBLY FOR VALVE LIFT PROFILE MODIFICATION

EXHAUST VALVE FAILURE DIAGNOSTICS AND MANAGEMENT

INTERNAL COMBUSTION ENGINE

METHODS FOR RE-COMBUSTION IN ENGINES

APPARATUS, SYSTEM, AND METHOD FOR SHUTDOWN OF INTERNAL COMBUSTION E...

METHODS FOR RE-COMBUSTION IN ENGINES

DYNAMIC CYLINDER DEACTIVATION LIFE FACTOR TO MODIFY CYLINDER DEACTI...

METHODS AND SYSTEM FOR OPERATING SKIPPED CYLINDERS TO PROVIDE SECON...

INTERNAL COMBUSTION ENGINE

SYSTEMS AND METHODS FOR FUEL POST INJECTION TIMING

VALVETRAIN WITH VARIABLE VALVE ACTUATION

DYNAMIC SKIP FIRE TRANSITIONS FOR FIXED CDA ENGINES

A CONTROLLER AND A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION EN...

OPTIMIZING COMBUSTION RECIPES TO IMPROVE ENGINE PERFORMANCE AND EMI...

EXHAUST VALVE FAILURE DIAGNOSTICS AND MANAGEMENT

ENGINE-EQUIPPED VEHICLE

SYSTEMS AND METHODS FOR SELECTIVELY ACTIVATING ENGINE CYLINDERS TO...

METHODS AND SYSTEMS FOR ENGINE BRAKING WITH REDUCED NOISE, VIBRATIO...

SYSTEM AND METHOD FOR DIAGNOSING CYLINDER DEACTIVATION

METHODS AND SYSTEM FOR ARBITRATING FUEL CUT OUT FOR A HYBRID VEHICLE

PARTICULATE FILTER SOOT MANAGEMENT FOR INTERNAL COMBUSTION ENGINES