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7062905 |
Control method for dual path NOx adsorber system
A method of controlling a dual path NOx adsorber system. The amount of exhaust into the two paths of the system is controlled by a diverter valve at the beginning of each path. The valves are...
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7063729 |
Low-emissions diesel fuel
A low-emissions diesel fuel comprises fungible aviation kerosene grade 55, 50–300 ppm detergent, 25–500 ppm lubricity additive and a bimetallic, fuel soluble platinum and cerium fuel borne...
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7059115 |
Air/fuel ratio control apparatus and method for internal combustion engine and engine control unit
An air/fuel ratio control apparatus an internal combustion engine, and an engine control unit are provided for conducting perturbation control to maintain a satisfactory exhaust gas purification...
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7059116 |
Power output apparatus and control method for same
During the catalyst warm-up period, when control enabling reduction in hydrocarbons is not executed in gasoline engine 100 , the opening of the throttle valve 101 is made smaller in order to...
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7059117 |
Method and device for controlling an exhaust treatment system
A device and a method for controlling an exhaust-gas aftertreatment system, for example, for an internal combustion engine, are provided. The exhaust-gas aftertreatment system includes at least one...
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7059114 |
Hydrogen fueled spark ignition engine
A hydrogen fueled reciprocating spark ignition engine includes a fuel system for providing gaseous hydrogen to the cylinders of the engine and a lean NOx trap coupled to the engine for treating the...
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7055310 |
System for detecting deterioration of a purifier utilizing a non-linear filter
A high precision deterioration determination device for an exhaust gas purifier of an engine is provided. The engine includes an exhaust gas purifier disposed in an exhaust pipe of the engine, and...
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7055313 |
Engine control system and method with lean catalyst and particulate filter
A method for controlling reductant added to an exhaust of an engine having a lean NOx catalyst and a particulate filter adjusts a reductant amount during particulate filter regeneration. The method...
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7055312 |
Power output apparatus, hybrid power output apparatus, method of controlling the same, and hybrid vehicle
In a hybrid power output apparatus including an engine and a motor generator apparatus, a fuel supply stop process of stopping the supply of fuel is performed after performing a fuel increase...
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7055311 |
Emission control system for vehicles powered by diesel engines
An NOx emission system for diesel powered vehicles has a “Y” exhaust system with an NOx adsorber catalyst in each leg and an oxidation catalyst in the combined leg. One bank of cylinders sends...
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7055309 |
Method and device for controlling an internal combustion engine
A method and a device for controlling an internal combustion engine, in which a first quantity characterizing the flow resistance of a first component of the exhaust-gas treatment system is...
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7051516 |
Method for controlling a working mode of an internal combustion engine
The invention relates to a method for controlling a temperature of a catalyst system ( 14, 16 ) located in an exhaust duct ( 12 ) of an internal combustion engine ( 10 ) in a motor vehicle. Said...
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7051522 |
Thermoelectric catalytic converter temperature control
A method for controlling temperature of a catalytic converter in an automobile exhaust system is disclosed. The method includes establishing a reference temperature for the catalytic converter,...
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7054734 |
Combustion control system of internal combustion engine
In a combustion control system of an engine employing an exhaust purifying device, a control unit determines, based on an operating condition of the exhaust purifying device, whether a request for...
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7051517 |
Apparatus and method for electronic throttle control power management enhancements
A controller estimates a temperature of a catalytic converter in a vehicle and determines an engine speed. The controller shuts off fuel to the engine if the estimated temperature is greater than a...
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7051515 |
Method and model for modeling a discharge phase of a nitrous oxide storage catalytic converter
The invention further relates to a method and a model for modeling a discharge phase of a nitrogen oxide (NOx)-storage catalytic converter ( 12 ′) of an internal combustion engine ( 1 ). The...
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7051520 |
Sulfur purge control method and exhaust gas purifying system
In an exhaust gas purifying system ( 1 ) for removing NOx by a NOx occlusion reduction type catalyst ( 11 ) for exhaust gas of an internal combustion engine, the air-fuel ratio in the exhaust gas...
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7047730 |
De-sulfurization of a NOx adsorber catalyst in a diesel engine exhaust system
De-sulfurizing a NO x adsorber catalyst ( 48 ) without significantly increasing the temperature of exhaust gases leaving the engine exhaust manifold ( 42 ) by using a diesel oxidation catalyst (...
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7047728 |
Apparatus for and method of controlling air-fuel ratio of internal combustion engine, and recording medium storing program for controlling air-fuel ratio of internal combustion engine
A target value Vtgt for an output Vout of an O 2 sensor 8 (an exhaust gas sensor) disposed downstream of a catalytic converter 4 is set variably depending on a temperature T O2 of an active...
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7047727 |
Rapid catalyst warm-up control device for internal combustion engine
A rapid catalyst warm-up control device for an internal combustion engine performs irregular injection dither control during the rapid catalyst warm-up control after starting the engine. In the...
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7047726 |
Method of purifying exhaust gas of an internal combustion engine
A NOx occluding and reducing catalyst 20 is provided in an exhaust gas passage of an engine to occlude the NOx in the exhaust gas of a lean air-fuel ratio. The engine is provided with an injector...
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7047729 |
Control method and system for diesel particulate filter regeneration
A method and system for controlling regeneration in a particulate filter coupled to an internal combustion engine. The method controls hydrocarbon injection into engine exhaust upstream of an...
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7047731 |
Diesel particulate filter ash removal
Disclosed herein is a method for reducing internal combustion engine contaminate and additive particulate matter from a particulate filter the method including accessing the filter and entraining...
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7043903 |
Control method for an exhaust gas purification system and an exhaust gas purification system
An exhaust gas purification system ( 1 ) including a continuous regeneration-type DPF ( 13 ) and a DPF control ( 30 c ) is composed to perform an exhaust gas temperature raising control by...
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7043899 |
On-line catalyst monitoring using a Kalman filter
A method of non-intrusive monitoring of catalyst performance in an automotive exhaust system uses a model of catalytic converter operation emphasizing oxygen storage capacity dominance. Model...
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7040084 |
Exhaust emission aftertreatment
An engine control system in a vehicle including a diesel engine in the vehicle, a diesel fuel tank for supplying fuel to the diesel engine, a gasoline tank in the vehicle, a reformer for providing...
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7040085 |
Deterioration detecting device for oxygen concentration sensor
Detecting deterioration of an oxygen concentration sensor disposed downstream of a catalyst. The air-fuel ratio is set to a rich air-fuel ratio, and then changed to a lean air-fuel ratio after an...
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7040086 |
Exhaust emission control system of internal combustion engine
An exhaust purifying device is arranged in an exhaust gas passage extending from an internal combustion engine. The exhaust purifying device includes a NOx trapping catalyst that traps NOx in the...
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7040088 |
Diesel engine exhaust purification system
An exhaust purification system for use with diesel or other compression ignited systems to remove particulate and gaseous pollutants from the exhaust. The system includes a catalytic converter...
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7036304 |
Exhaust gas purifying apparatus and method for internal combustion engine
Removal of poisoning substance (sulfur oxidant) is controlled based upon estimating an amount of the poisoning substance deposited in an exhaust gas purification catalyst disposed in an exhaust...
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7037349 |
Method and apparatus for fuel/air preparation in a fuel cell
A fast start-up catalytic reformer for producing hydrogen-rich reformate from hydrocarbon fuel includes a reactor having an inlet for receiving a flow of fuel and a flow of air, a reforming...
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7032376 |
Diesel fuel burner for diesel emissions control system
A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is...
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7033549 |
Air compression arrangement for vehicles
The invention relates to an arrangement for a compressed-air system ( 1 ) in a vehicle, comprising a connection ( 6, 10 ) for feeding compressed air from a compressor ( 2 ) to the rest of the...
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7032374 |
Exhaust purification apparatus for internal combustion engine
An exhaust purification apparatus for an internal combustion engine includes a catalyst unit disposed in an exhaust passage of the engine, upstream and downstream air-fuel-ratio sensors disposed...
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7028467 |
Exhaust emission control device for internal combustion engine
An engine exhaust emission control device determines a differential pressure across a diesel particulate filter (DPF) to enable regeneration of the DPF at optimal timing. An ECU estimates the...
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7028464 |
Method for purifying exhaust gas of an internal combustion engine
A method for purifying the exhaust gas from an internal combustion engine, which is operated under lambda-based closed loop control and which has an exhaust gas tract in which is located a...
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7024851 |
Direct fuel injection/spark ignition engine control device
An engine control device is configured to perform optimum combustion control according to environmental conditions when warming up of a catalyst for emission purification is required. The engine...
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7025810 |
Method and apparatus for shutting down a fuel-fired burner of an emission abatement assembly
A method of operating a fuel-fired burner of an emission abatement assembly includes supplying a reduced amount of fuel to the fuel-fired burner in response to detection of a burner shutdown...
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7024850 |
Exhaust gas purifying catalyst for internal combustion engine
An exhaust gas purifying system for an internal combustion engine of an automotive vehicle. The exhaust gas purifying system includes an exhaust gas purifying catalyst disposed in an exhaust gas...
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7021044 |
System for diagnosing deterioration of catalyst
A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst in a catalytic converter for cleaning the exhaust gas of an internal combustion engine is...
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7021051 |
Method for regenerating particulate filter
Fuel is added to exhaust gas 9 upstream of a catalytic regeneration type particulate filter 13 in an exhaust pipe 11 . The fuel added is oxidized on a flow-through type oxidization catalyst ...
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7021048 |
Combination emission abatement assembly and method of operating the same
A combination emission abatement assembly includes a first emission device such as a NO x trap and a second emission abatement device such as a soot particulate filter. Reformate gas from a fuel...
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7017335 |
Method and device for dosing a reducing agent for the removal of nitrogen oxides from exhaust gases
A method and a device for metering a reducing agent is described, which is used for mass regulated metering of a reducing agent, in particular urea or a urea-water solution for the exhaust gas...
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7017337 |
Method and device for controlling an exhaust gas aftertreatment system
A method and a device for controlling an exhaust gas aftertreatment system, in which a first state variable characterizes the state of the exhaust gas aftertreatment system. A second state variable...
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7018442 |
Method and apparatus for regenerating NOx adsorbers
Methods and apparatuses for regenerating a NOx adsorber coupled with an exhaust of an engine. An actuator drives a throttle valve to a first position when regeneration of the NOx adsorber is...
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7013637 |
Exhaust purification apparatus and method for internal combustion engine
In exhaust purification apparatus and method for an internal combustion engine having an exhaust gas purification catalyst disposed in an exhaust passage of the engine, a poisoning release control...
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7013638 |
Exhaust gas purifying system and exhaust gas purifying method
In regenerating a filter there are performed a first additional fuel injection involving additional injection of fuel into a cylinder after a main fuel injection in an engine to raise the...
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7007462 |
Combustion control apparatus for internal combustion engine
A combustion control apparatus operates an internal combustion engine in a split retard combustion mode during regenerating an exhaust purifier such as a NOx trap. In the split retard combustion...
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7007463 |
Engine fuel injection control system
An engine fuel injection control system including a particulate filter is configured to compare an accelerator request fuel injection quantity based on an accelerator depression amount to an air...
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7007457 |
Method for monitoring the light-off performance of an exhaust gas catalytic converter system
It is proposed that a quantity of heat input fed with the exhaust gas to the light-off area ( 8 ) during hot running up to a point in time be used as a criterion for successive conversion...
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