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The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 8136343 | System for an engine having a particulate matter sensor A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exha... | 03/20/2012 |
| 8104266 | Exhaust purification device of internal combustion engine In an internal combustion engine, an SOx sensor (16) having a sensor part (53, 60) trapping the SOx contained in the exhaust gas and able to detect the amount of SOx trapped at the sensor part (53, 60) from a cha... | 01/31/2012 |
| 8104267 | Exhaust emission control device Provided is an exhaust emission control device with a sensor arranged at a position where no erroneous detection of data occurs. Provided are a casing which encases a catalyst carrier, a mixing pipe, a dispersion chamber which guides exhaust flowing in the mi... | 01/31/2012 |
| 8087230 | Exhaust system for motor vehicles An exhaust system for discharging exhaust gases through an exhaust passageway, emitted from a multi-cylinder combustion engine mounted on a motor vehicle includes a partition plate formed therein for dividing the exhaust passageway into a plurality of juxtaposed exh... | 01/03/2012 |
| 8037671 | Method and device for the calibration of an exhaust gas probe, and method and device for the operation of an internal combustion engine A plateau phase of a test signal of an exhaust gas probe located in a catalytic converter is detected following a jump from a preset rich air/fuel ratio in a combustion chamber of one cylinder to a preset lean air/fuel ratio, the plateau phase being obtained followi... | 10/18/2011 |
| 8015799 | Multicylinder internal combustion engine There is provided a multicylinder internal combustion engine. Branches of an exhaust manifold are connected to a common exhaust gas sensor via respective exhaust communication passages. The exhaust gas sensor detects the exhaust air-fuel ratio of each cylinder. The ... | 09/13/2011 |
| 8011173 | Method for the diagnosis of a three-way-catalytic converter for an internal combustion engine A method for the diagnosis of a three-way catalytic converter for an internal combustion engine using the voltage signal of a downstream binary lambda sensor proposes that with a changeover of the air/fuel ratio λ that is fed to the internal combustion engine from ... | 09/06/2011 |
| 8001765 | System operable to control exhaust gas emission of engine A system operable to control an exhaust gas emission of an engine, includes a catalytic converter; a fuel cutter, a change executor, a correlation value provider, an adjuster, and a controller. The change executor is operable to execute changing of an air-fuel ratio... | 08/23/2011 |
| 7997063 | Controlled air-fuel ratio modulation air fuel sensor input A method is described for identifying fuel composition from an index ratio of oxygen sensors upstream and downstream of a catalyst of the engine. Different index ratios are achieved for different fuel compositions, and thus it is possible to identify fuel compositio... | 08/16/2011 |
| 7971425 | Urea concentration identifying system, method for indentifying urea concentration and automobile exhaust gas reducing system using same, and method for reducing automobile exhaust gas The concentration of the urea of a urea solution is identified accurately and immediately. A pulse voltage is applied for a predetermined time to a urea concentration identifying sensor heater including a heater and an identifying liquid temperature sensor provided ... | 07/05/2011 |
| 7950222 | System and method for cleaning combustion soot from exhaust gas treatment sensors A system and method are provided for cleaning combustion soot from an exhaust gas aftertreatment sensor. The system and method determine whether to conduct a sensor desoot event, and if it is determined that a sensor desoot event is to be conducted, the exhaust gas ... | 05/31/2011 |
| 7854113 | Catalyst temperature estimation device In a fuel cut period, an adsorbed CO quantity calculation section calculates the amount CATco of CO adsorbed on a catalyst, and an exhaust O2 quantity calculation section calculates the amount GASo2 of O2 in exhaust gases. CO oxidati... | 12/21/2010 |
| 7810314 | Approach for controlling particulate matter in an engine A method for operating an engine comprises correlating a measured property associated with a carbon nanostructure layer to an amount of particulate matter from an exhaust stream of the engine. In this way, engine operation may be adjusted based on an amount of sense... | 10/12/2010 |
| 7793489 | Fuel control for robust detection of catalytic converter oxygen storage capacity An oxygen storage capacity (OSC) monitoring system for a vehicle having a catalytic converter includes an inlet oxygen sensor that generates an inlet sensor signal (ISS) based on an oxygen content of exhaust flowing into the catalytic converter. A control module rec... | 09/14/2010 |
| 7721527 | Multi-line exhaust system having at least one measurement sensor, honeycomb body having a recess for at least one measurement sensor, and method for operating a multi-line exhaust system A multi-line exhaust system has at least two exhaust lines which are substantially separate from one another and at least one measurement sensor for measuring at least one characteristic variable of the exhaust gas. In which system, the at least one measurement sens... | 05/25/2010 |
| 7644576 | Sensor control device A sensor control device is connected with a plurality of exhaust sensors including an NOx sensor to be disposed around a catalyst, and is constructed such that a plurality of drive control circuits to be connected in a one-to-one relationship with the individual gas... | 01/12/2010 |
| 7610748 | Mounting structure for an air-fuel ratio sensor in a motorcycle, and exhaust subassembly including same A mounting structure is provided for an air-fuel ratio sensor on an exhaust pipe in a motorcycle in which a concentration of oxygen in an exhaust gas can be detected efficiently and accurately by the air-fuel ratio sensor. The air-fuel ratio sensor is mounted on a c... | 11/03/2009 |
| 7568337 | Device for detecting state of thermal degradation of exhaust purifying catalyst An electronic controller integrates a rate of progress dK of thermal degradation of exhaust purifying catalyst at every predetermined time period, to calculate degree of thermal degradation K of the exhaust purifying catalyst, when the state of thermal degradation o... | 08/04/2009 |
| 7526914 | Heater control device for gas sensor An oxygen concentration sensor including the sensor element for detecting oxygen concentration in the exhaust gas and the heater for heating the sensor element is installed at the location downstream of a DPF. An ECU controls power supply to the heater to make the s... | 05/05/2009 |
| 7448201 | Honeycomb body and method for treating a fluid A honeycomb body, in particular for aftertreatment of exhaust gas from an internal combustion engine, includes an inlet surface, an outlet surface and a honeycomb structure through which a fluid can flow. The honeycomb structure is disposed between the inlet surface... | 11/11/2008 |
| 7444235 | Post catalyst oxygen sensor diagnostic An engine exhaust sensor diagnostic system for an exhaust system including a catalyst and a post-catalyst oxygen sensor includes a first module that calculates a total integrated area based on a signal generated by the post-catalyst oxygen sensor. A second module co... | 10/28/2008 |
| 7434386 | System for monitoring exhaust gas concentrations A system is provided for monitoring exhaust gas concentrations in an exhaust stream from an engine. The system may include the exhaust system configured to carry an exhaust stream generated by the engine. The system may further include at least one sensor in communi... | 10/14/2008 |
| 7430854 | Air fuel ratio controller for internal combustion engine for stopping calculation of model parameters when engine is in lean operation An air fuel ratio controller for an internal combustion engine includes an exhaust gas sensor, an identifier and a control unit. The exhaust gas sensor detects oxygen concentration of exhaust gas. The identifier calculates model parameters for a model of a controlle... | 10/07/2008 |
| 7430853 | Apparatus for evaluating deterioration condition of catalyst of internal combustion engine To provide an apparatus for evaluating the deterioration condition of a catalyst of an internal combustion engine that can improve the accuracy of an evaluation of the deterioration condition of a catalyst and can suppress a worsening of emissions. The apparatus for... | 10/07/2008 |
| 7426825 | Method and apparatus for urea injection in an exhaust aftertreatment system An exhaust aftertreatment system and control system is provided, including a urea injecting device, a selective catalyst reduction device, and, a sensing device operative to monitor a forward portion of the selective catalyst reduction device. The sensing device can... | 09/23/2008 |
| 7424801 | 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 enhanced without incurring a rise in cost. The temperature of the catalyst i... | 09/16/2008 |
| 7421836 | Air/fuel ratio validation for lean burn A multi-cylinder group engine system operable in at least a first mode and a second mode, where in the first mode a first and second cylinder group combust air and fuel, and where in the second mode at least one of the first and second cylinder group combusts air an... | 09/09/2008 |
| 7415818 | Control device of internal combustion engine A control device of an internal combustion engine is capable of controlling an air-fuel ratio to be lean based on an activity of oxygen occlusion properties to provide improved three-way catalytic performance. The control device comprises: a three-way catalyst dispo... | 08/26/2008 |
| 7412820 | Air-fuel ratio control system for internal combustion engine An air-fuel ratio control system for an internal combustion engine having a catalyst provided in an exhaust system of the engine for purifying exhaust gases and a first oxygen concentration sensor disposed upstream of the catalyst is disclosed. The air-fuel ratio co... | 08/19/2008 |
| 7409823 | Method and apparatus for delivery of supplemental material to an exhaust gas feedstream with supplemental air assistance A method and system for introducing supplemental material to an exhaust aftertreatment device, including: a delivery system, an air pump operable to input pressurized air to the delivery system, and a turbosupercharger of an internal combustion engine operable to de... | 08/12/2008 |
| 7409247 | Method and system for estimating a quantity of particles emitted in the exhaust gas of a diesel engine for a motor vehicle The inventive system for estimating quantities of pollution compounds emitted in the exhaust gas of a diesel engine for a motor vehicle comprises means for regenerating a solid particle filter and an electronic control unit which manages the engine operation and is ... | 08/05/2008 |
| 7395660 | Exhaust gas purification system for an internal combustion engine The present invention has for its problem to be solved to provide a technique in which in an exhaust gas purification system for an internal combustion engine with a filter being arranged on an exhaust passage for trapping PM in an exhaust gas, it is possible to sup... | 07/08/2008 |
| 7389637 | Diagnostic equipment for an exhaust gas cleaning apparatus A diagnostic equipment for an exhaust gas cleaning apparatus installed for an engine, comprising a misfire detector which detects the misfire of the engine, and a secondary-air-system failure detector which detects the failure of a secondary air system. An index cor... | 06/24/2008 |
| 7389174 | Air/fuel ratio control apparatus for internal combustion engine Under the assumption that in-cylinder intake air quantities which are imbibed into a combustion chamber are constant, and on the basis of the relationship that the product between a command final fuel injection quantity Fi (Fi(k−M)) and a detection air/fuel ratio ... | 06/17/2008 |
| 7377101 | Plasma fuel converter NOx adsorber system for exhaust aftertreatment The invention provides a NOx adsorber aftertreatment system for internal combustion engines which utilizes a plasma fuel converter operatively coupled to at least one NOx adsorber to aid in the regeneration of the NOx adsorber. Fuel and engine exhaust is injected in... | 05/27/2008 |
| 7370472 | Method and apparatus for determining loading of an emissions trap by use of transfer function analysis An apparatus comprises an emissions trap and a transfer function device. The transfer function device is configured to determine a transfer function of the emissions trap wherein the transfer function is representative of loading of the emissions trap. An associated... | 05/13/2008 |
| 7370512 | Gas analyzer apparatus A gas analyzer apparatus including a support tube having a distal portion arranged in a flue and a gas sensor supported on the support tube. An air supply tube supplies cooling air into the support tube. A basal portion of the gas sensor is cooled by the cooling air... | 05/13/2008 |
| 7370470 | Method for increasing the exhaust gas temperature of internal combustion engines A method for increasing the exhaust gas temperature of internal combustion engines, particularly for driving a motor vehicle under load in order to reach the necessary regeneration temperature of at least one component of an exhaust gas post-treatment system, has th... | 05/13/2008 |
| 7370632 | System for providing assistance in regenerating depollution means integrated in an exhaust line of a vehicle diesel engine A system in which a depollution apparatus is associated with an oxidation catalyst and the engine is associated with a common rail for feeding it with fuel and adapted to implement a regeneration strategy using at least one post-injection of fuel into the cylinders.... | 05/13/2008 |
| 7370630 | Engine with a plurality of operating modes including operation by compressed air The present invention relates (with reference to FIG. 1) to an internal combustion engine in which a combustion chamber (12) can be connected to a reservoir (16) for storing compressed air. Gas flow control valve means (15) controls flow ... | 05/13/2008 |
