US Patent No: 7,111,450
Number of patents in Portfolio can not be more than 2000
Method for controlling the temperature of an emission control device
Stats
-
Sep 26, 2006
Issued date -
Jun 4, 2002
filing date -
10/064,007
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,964,272 Air-fuel ratio feedback control system including at least downstreamside air-fuel ratio sensor | 56 | 1988 | |
| 5,088,281 Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor system | 78 | 1989 | |
| 5,270,024 Process for reducing nitrogen oxides from exhaust gas | 89 | 1990 | |
| 5,331,809 Exhaust gas purification system for an internal combustion engine | 86 | 1990 | |
| 5,189,876 Exhaust gas purification system for an internal combustion engine | 93 | 1991 | |
| 5,233,830 Exhaust gas purification system for an internal combustion engine | 93 | 1991 | |
| 5,174,111 Exhaust gas purification system for an internal combustion engine | 75 | 1991 | |
| 5,165,230 Apparatus for determining deterioration of three-way catalyst of internal combustion engine | 67 | 1991 | |
| 5,201,802 Exhaust gas purification system for an internal combustion engine | 125 | 1992 | |
| 5,209,061 Exhaust gas purification system for an internal combustion engine | 81 | 1992 | |
| 5,412,946 NOx decreasing apparatus for an internal combustion engine | 149 | 1992 | |
| 5,473,887 Exhaust purification device of internal combustion engine | 155 | 1993 | |
| 5,402,641 Exhaust gas purification apparatus for an internal combustion engine | 127 | 1993 | |
| 5,433,074 Exhaust gas purification device for an engine | 82 | 1993 | |
| 5,412,945 Exhaust purification device of an internal combustion engine | 86 | 1993 | |
| 5,423,181 Exhaust gas purification device of an engine | 69 | 1993 | |
| 5,377,484 Device for detecting deterioration of a catalytic converter for an engine | 85 | 1993 | |
| 5,437,153 Exhaust purification device of internal combustion engine | 129 | 1994 | |
| 5,450,722 Exhaust purification device of internal combustion engine | 68 | 1994 | |
| 5,448,887 Exhaust gas purification device for an engine | 80 | 1994 | |
| 5,473,890 Exhaust purification device of internal combustion engine | 107 | 1994 | |
| 5,483,795 Exhaust purification device of internal combustion engine | 100 | 1994 | |
| 5,472,673 Exhaust gas purification device for an engine | 102 | 1994 | |
| 5,551,231 Engine exhaust gas purification device | 96 | 1994 | |
| 5,577,382 Exhaust purification device of internal combustion engine | 89 | 1995 | |
| 5,746,052 Exhaust gas purification device for an engine | 86 | 1995 | |
| 5,740,669 Exhaust gas purification device for an engine | 90 | 1995 | |
| 5,732,554 Exhaust gas purification device for an internal combustion engine | 104 | 1996 | |
| 5,715,679 Exhaust purification device of an engine | 83 | 1996 | |
| 5,735,119 Exhaust purification device of an engine | 78 | 1996 | |
| 5,713,199 Device for detecting deterioration of NO.sub.x absorbent | 97 | 1996 | |
| 5,974,793 Exhaust gas purification device for an internal combustion engine | 104 | 1997 | |
| 5,752,492 Apparatus for controlling the air-fuel ratio in an internal combustion engine | 65 | 1997 | |
| 5,996,338 Exhaust gas purifying device for engine | 80 | 1997 | |
| 5,974,791 Exhaust gas purification device for an internal combustion engine | 186 | 1998 | |
| 5,865,027 Device for determining the abnormal degree of deterioration of a catalyst | 60 | 1998 | |
| 6,058,700 Device for purifying exhaust gas of engine | 99 | 1998 | |
| 6,014,859 Device for purifying exhaust gas of engine | 112 | 1998 | |
| 5,970,707 Exhaust gas purification device for an internal combustion engine | 93 | 1998 | |
| 6,345,496 Method and device for purifying exhaust gas of an engine | 47 | 2000 | |
| 6,349,710 Engine combustion controller | 13 | 2000 | |
| 6,546,910 Method and apparatus for controlling the cylinder torque of a combustion engine having electromagnetically driven valves | 57 | 2001 | |
|
|
|||
| 5,245,978 Control system for internal combustion engines | 36 | 1992 | |
| 5,419,122 Detection of catalytic converter operability by light-off time determination | 79 | 1993 | |
| 5,483,941 Method and apparatus for maintaining temperatures during engine fuel cutoff modes | 40 | 1993 | |
| 5,375,415 Adaptive control of EGO sensor output | 18 | 1993 | |
| 5,414,994 Method and apparatus to limit a midbed temperature of a catalytic converter | 123 | 1994 | |
| 5,479,898 Method and apparatus for controlling engine torque | 39 | 1994 | |
| 5,626,117 Electronic ignition system with modulated cylinder-to-cylinder timing | 66 | 1994 | |
| 5,452,576 Air/fuel control with on-board emission measurement | 93 | 1994 | |
| 5,497,745 Engine control for enhanced catalyst warm up while maintaining manifold vacuum | 43 | 1995 | |
| 5,492,094 Engine control system for maintaining idle speed | 40 | 1995 | |
| 5,626,014 Catalyst monitor based on a thermal power model | 108 | 1995 | |
| 5,598,703 Air/fuel control system for an internal combustion engine | 62 | 1995 | |
| 5,878,567 Closely coupled exhaust catalyst system and engine strategy associated therewith | 28 | 1996 | |
| 5,628,299 Air/fuel control system with lost fuel compensation | 16 | 1996 | |
| 5,743,084 Method for monitoring the performance of a no.sub.x trap | 101 | 1996 | |
| 5,771,685 Method for monitoring the performance of a NO.sub.x trap | 109 | 1996 | |
| 5,722,236 Adaptive exhaust temperature estimation and control | 99 | 1996 | |
| 5,746,049 Method and apparatus for estimating and controlling no x trap temperature | 82 | 1996 | |
| 5,832,722 Method and apparatus for maintaining catalyst efficiency of a NO.sub.x trap | 93 | 1997 | |
| 5,778,666 Method and apparatus for improving engine fuel economy | 101 | 1997 | |
| 5,974,788 Method and apparatus for desulfating a no.sub.x trap | 151 | 1997 | |
| 5,983,627 Closed loop control for desulfating a NO.sub.x trap | 89 | 1997 | |
| 6,023,929 Engine with cylinder deactivation | 154 | 1998 | |
| 6,189,316 Emission device temperature control system | 30 | 1999 | |
| 6,276,138 Engine with direct turbo compounding | 52 | 1999 | |
| 6,161,531 Engine control system with adaptive cold-start air/fuel ratio control | 26 | 1999 | |
| 6,324,835 Engine air and fuel control | 40 | 1999 | |
| 6,539,784 Evaluation of a motor vehicle oxygen sensor performance | 16 | 2000 | |
| 6,382,193 Method of supercharging an engine | 62 | 2000 | |
| 6,360,713 Mode transition control scheme for internal combustion engines using unequal fueling | 35 | 2000 | |
| 6,389,806 Variable displacement engine control for fast catalyst light-off | 72 | 2000 | |
| 6,415,601 Temperature management of catalyst system for a variable displacement engine | 60 | 2000 | |
| 6,467,259 Method and system for operating dual-exhaust engine | 44 | 2001 | |
| 6,543,219 Engine fueling control for catalyst desulfurization | 23 | 2001 | |
|
|
|||
| 5,325,664 System for determining deterioration of catalysts of internal combustion engines | 100 | 1992 | |
| 5,544,482 Exhaust gas-purifying system for internal combustion engines | 78 | 1995 | |
| 5,803,048 System and method for controlling air-fuel ratio in internal combustion engine | 63 | 1995 | |
| 5,655,363 Air-fuel ratio control system for internal combustion engines | 74 | 1995 | |
| 5,724,808 Air-fuel ratio control system for internal combustion engines | 79 | 1996 | |
| 6,012,428 Method for controlling air-fuel ratio in internal combustion engine | 67 | 1997 | |
| 6,116,213 Control system for controlling internal combustion engine | 28 | 1998 | |
| 6,327,850 Air-fuel ratio control apparatus for multicylinder internal combustion engine | 20 | 2000 | |
| 6,505,464 Control system for internal combustion engine | 20 | 2000 | |
| 6,408,618 Controller for cylinder cut-off type internal combustion engine | 44 | 2001 | |
|
|
|||
| 5,437,253 System and method for controlling the transient torque output of a variable displacement internal combustion engine | 60 | 1994 | |
| 6,550,240 Lean engine control with multiple catalysts | 52 | 2001 | |
| 6,568,177 Method for rapid catalyst heating | 84 | 2002 | |
| 6,735,938 Method to control transitions between modes of operation of an engine | 44 | 2002 | |
| 6,745,747 Method for air-fuel ratio control of a lean burn engine | 19 | 2002 | |
| 6,769,398 Idle speed control for lean burn engine with variable-displacement-like characteristic | 27 | 2002 | |
| 6,868,667 Method for rapid catalyst heating | 9 | 2003 | |
|
|
|||
| 4,391,240 Internal combustion engine | 22 | 1980 | |
| 4,467,602 Split engine control system | 58 | 1982 | |
| 4,690,116 System for controlling an internal combustion engine and method therefor | 30 | 1986 | |
| 5,009,210 Air/fuel ratio feedback control system for lean combustion engine | 66 | 1987 | |
| 4,913,122 Air-fuel ratio control system | 71 | 1988 | |
|
|
|||
| 4,550,704 Multi-cylinder internal combustion engine having disconnectable groups of cylinders | 50 | 1984 | |
| 5,267,548 Stereo lambda control | 21 | 1991 | |
| 5,267,439 Method and arrangement for checking the aging condition of a catalyzer | 62 | 1991 | |
| 5,335,538 Method and arrangement for determining the storage capacity of a catalytic converter | 92 | 1992 | |
| 6,247,445 Method for operating an internal combustion engine, in particular for a motor vehicle | 51 | 1999 | |
|
|
|||
| 4,251,989 Air-fuel ratio control system | 92 | 1979 | |
| 5,097,700 Apparatus for judging catalyst of catalytic converter in internal combustion engine | 76 | 1991 | |
| 5,622,047 Method and apparatus for detecting saturation gas amount absorbed by catalytic converter | 67 | 1994 | |
| 5,672,817 Self-diagnostic apparatus of air-fuel ratio control system of internal combustion engine | 38 | 1995 | |
|
|
|||
| 5,179,924 Method and apparatus for controlling air-fuel ratio in internal combustion engine | 29 | 1991 | |
| 5,693,877 Evaluating method for NO.sub.x eliminating catalyst, an evaluating apparatus therefor, and an efficiency controlling method therefor | 76 | 1994 | |
| 5,802,843 Method and apparatus for diagnosing engine exhaust gas purification system | 72 | 1995 | |
|
|
|||
| 5,595,060 Apparatus and method for internal-combustion engine control | 117 | 1995 | |
| 5,657,625 Apparatus and method for internal combustion engine control | 156 | 1995 | |
| 5,979,413 Cylinder judging device for internal combustion engine | 29 | 1997 | |
|
|
|||
| 5,950,603 Vapor recovery control system for direct injection spark ignition engines | 105 | 1998 | |
| 6,244,242 Direct injection engine system and method | 29 | 1999 | |
|
|
|||
| 6,305,344 Method and apparatus for controlling fuel to an engine during coolant failure | 20 | 2000 | |
| 6,615,804 Method and apparatus for deactivating and reactivating cylinders for an engine with displacement on demand | 25 | 2001 | |
|
|
|||
| 4,884,066 Deterioration detector system for catalyst in use for emission gas purifier | 77 | 1987 | |
| 5,357,750 Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor | 66 | 1993 | |
|
|
|||
| 5,647,207 Internal-combustion engine including a cylinder shut-off and exhaust gas catalysts | 12 | 1995 | |
|
|
|||
| 6,367,443 Controlling the injection in a fuel injection system selectively operable with petrol or fuel gas | 26 | 2000 | |
|
|
|||
| 5,938,715 Method for monitoring the conversion capacity of a catalytic converter | 76 | 1998 | |
|
|
|||
| 5,771,686 Method and apparatus for operating a diesel engine | 104 | 1996 | |
|
|
|||
| 4,622,809 Method and apparatus for monitoring and adjusting .lambda.-probe-controlled catalytic exhaust gas emission control systems of internal combustion engines | 113 | 1985 | |
|
|
|||
| 6,158,218 Superchargeable internal combustion engine with cylinder cut-off | 29 | 1999 | |
|
|
|||
| 4,305,249 Multicylinder internal combustion engine, especially for automobiles and method of operating same | 30 | 1979 | |
|
|
|||
| 5,792,436 Method for using a regenerable catalyzed trap | 87 | 1996 | |
|
|
|||
| 5,930,992 Process for controlling a multiple cylinder internal combustion engine in the cold start and warming up phases | 78 | 1996 | |
|
|
|||
| 5,727,522 Method and system for controlling ignition timing for internal combustion engine | 26 | 1997 | |
|
|
|||
| 5,410,873 Apparatus for diminishing nitrogen oxides | 94 | 1993 | |
|
|
|||
| 5,272,871 Method and apparatus for reducing nitrogen oxides from internal combustion engine | 146 | 1992 | |
|
|
|||
| 5,222,471 Emission control system for an internal combustion engine | 65 | 1992 | |
|
|
|||
| 5,496,228 Evaporated fuel control system for an internal combustion engine responsive to torque reduction during shifting | 20 | 1994 | |
|
|
|||
| 6,513,509 Device for controlling the air-fuel ratio of an internal combustion engine | 12 | 2000 | |
|
|
|||
| 4,860,716 Multi-cylinder diesel internal combustion engine with low compression ratio in the cylinders | 31 | 1988 | |
|
|
|||
| 4,854,123 Method for removal of nitrogen oxides from exhaust gas of diesel engine | 99 | 1988 | |
|
|
|||
| 6,014,963 Method and apparatus for controlling the air-fuel ratio in an internal combustion engine | 17 | 1998 | |
|
|
|||
| 5,842,340 Method for controlling the level of oxygen stored by a catalyst within a catalytic converter | 122 | 1997 | |
|
|
|||
| 5,992,142 No exhaust emission control method and arrangement | 81 | 1999 | |
|
|
|||
| 6,619,241 Internal combustion engine and method for operating an internal combustion engine | 18 | 2001 | |
|
|
|||
| 4,207,855 Fuel conservation system for internal combustion engines | 21 | 1978 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 26, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 26, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |