| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123676000 | Exhaust gas temperature or pressure repsonsive | 35 |
| 20090038595 | Method and Device for Operating an Internal Combustion Engine - An internal combustion engine has at least one cylinder and an exhaust gas tract, in which an exhaust gas sensor, that can be heated in a controlled manner, is arranged. An exhaust gas temperature of an exhaust gas flowing in the exhaust gas tract is determined as a function of the heating power (P_HEAT) supplied to the exhaust gas sensor. An estimated value of the exhaust gas temperature is determined as a function of a physical model of the combustion of the air/fuel mixture and of the exhaust gas tract as a function of at least one operating variable of the internal combustion engine, but independent of the heating power supplied to the exhaust gas sensor. Model parameters of the physical model are adapted as a function of a deviation of the estimated value and of the exhaust gas temperature determined by the supplied heating power. | 02-12-2009 |
| 20090044792 | Barometric Pressure Regulator Circuit - A barometric pressure regulator circuit is described. The circuit includes a memory storing output parameters to be supplied to a pressure regulator unit, and a processor operatively coupled to the memory. The processor is configured to perform operations including receiving voltage signals representing output parameters of an engine, storing the received voltage signals in the memory, identifying output parameters to be supplied to the pressure regulator unit that correspond to the received voltage signals, converting the identified output parameters into output electrical signals, and transmitting the output electrical signals to the pressure regulator unit. | 02-19-2009 |
| 20090114199 | METHOD AND APPARATUS FOR CONTROLLING DIESEL ENGINE - A diesel engine may be stably controlled without an exhaust gas temperature at an upstream side of a turbocharger, by a method for controlling a diesel engine that includes: detecting an engine rotation speed; detecting or estimating a lambda value; estimating an exhaust gas temperature at an upstream side of a turbocharger by using relationship between the lambda value and an exhaust temperature; determining whether the estimated exhaust gas temperature exceeds a first predetermined reference value; and limiting an engine output power and/or regeneration of a CPF when the estimated exhaust gas temperature exceeds the first predetermined reference value. | 05-07-2009 |
| 20090283080 | METHOD AND APPARATUS FOR PROVIDING FUEL TO AN AIRCRAFT ENGINE - An aircraft engine includes an aircraft engine controller configured to detect an actual peak exhaust gas temperature of a cylinder assembly. The aircraft engine controller detects an intersection between a first function representing a relationship between a set of rich exhaust gas temperature signals and a corresponding set of rich fuel-air ratio values and a second function representing a relationship between a set of lean exhaust gas temperature signals and a set of lean fuel-air ratio values. Based upon the intersection between the first and second functions, the engine controller detects an actual peak fuel-air ratio value for the cylinder assembly and can determine if a correction in the fuel-air ratio of a fuel-air mixture provided to the cylinder assembly is required. Accordingly, the engine controller provides each cylinder assembly of the aircraft engine with an accurate fuel-air mixture to allow for operation of the engine with optimal fuel economy. | 11-19-2009 |
| 20100006077 | Engine Torque Detection Means - An engine includes an angular velocity detecting means | 01-14-2010 |
| 20100006078 | ENGINE CONTROLLER - An engine controller is applied to a system that includes an engine and an exhaust purifying catalyst for purifying exhaust gas of the engine. The engine controller has an idle stopping means, a catalyst temperature detecting means and an engine restarting means. The idle stopping means stops the engine when a predetermined idle stop condition is satisfied. The catalyst temperature detecting means detects a temperature of the exhaust purifying catalyst while the engine is stopped by the idle stopping means. The engine restarting means restarts the engine when the temperature of the exhaust purifying catalyst, which is detected by the catalyst temperature detecting means, becomes equal to or lower than an engine restart determination temperature, which is determined on a basis of an activation temperature of the exhaust purifying catalyst. | 01-14-2010 |
| 20100078001 | METHOD FOR CONTROLLING CYLINDER AIR CHARGE FOR A TURBO CHARGED ENGINE HAVING VARIABLE EVENT VALVE ACTUATORS - A method for controlling cylinder air charge of an engine having a compressor is presented. In one example, the description includes a method for coordinating the control of the throttle, turbo charger, and valves such that the desired cylinder air charge may be achieved while engine pumping work may be decreased. | 04-01-2010 |
| 20100126482 | METHOD OF CALCULATING MASS FRACTION BURNT IN AN INTERNAL COMBUSTION ENGINE BASED ON RASSWEILER-WITHROW METHOD FOR REAL-TIME APPLICATIONS - A system and method for determining mass fraction burned in an internal combustion engine includes a plurality of engine sensors and a control module determining a ratio of specific heat from a combination of one or more from the group of exhaust gas temperature, injected fuel quantity, air quantity inside a cylinder, mass air flow, air fuel ratio, manifold pressure and a residual gas amount determined from the plurality of engine sensors. The control module includes a mass fraction burned module determining a mass fraction burned in response to a cylinder volume, and the ratio of specific heat. The control module controls an engine parameter based on mass fraction burned. | 05-27-2010 |
| 20100154761 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - In a low load region where torque is lower than T | 06-24-2010 |
| 20100258099 | ENGINE FUEL DELIVERY SYSTEMS, APPARATUS AND METHODS - A method of operating an engine is disclosed, which includes determining a peak power condition for the engine, measuring a temperature associated with the engine at said peak power condition, comparing the temperature measured with a previously determined temperature associated with a known peak power condition of the engine, determining an offset value based on the comparison made in step, controlling at least one of an air-fuel mixture delivered to the engine or ignition spark timing based on said offset value. Various engine fuel delivery systems, carburetors, fuel injection and control systems also are disclosed. | 10-14-2010 |
| 20100313862 | SYSTEM FOR CONTROLLING CONTINUOUS VARIABLE VALVE LIFT ACTUATOR OF DIESEL ENGINE, AND METHOD THEREOF - A system for controlling a continuous variable valve lift actuator of a diesel engine and a method thereof stabilize exhaust gas and improve performance by variably controlling lift and timing of intake and exhaust valves based on combustion state and driving purpose. The method may include, recognizing a driving purpose and combustion state by detecting driving conditions, temperature of exhaust gas at predetermined locations on an exhaust pipe, and NOx concentration contained in the exhaust gas, determining target position and timing of intake and exhaust valves by applying the driving purpose and the combustion state to a predetermined map table, controlling position and timing of the intake and exhaust valves by actuating a CVVA, detecting combustion pressure in a combustion chamber, and modifying fuel injection amount according to the combustion pressure. | 12-16-2010 |
| 20110139136 | TECHNIQUES FOR ENHANCING AFTERTREATMENT REGENERATION CAPABILITY - A system is provided for enhancing aftertreatment regeneration capability. The system includes an internal combustion engine producing an exhaust gas stream and an aftertreatment component that treats the exhaust gas stream, where the aftertreatment component includes a desired inlet exhaust gas temperature. The system includes an exhaust gas pressure device that modulates an exhaust pressure value, and a fuel injection system that provides a post-injection event. The system includes a controller that provides an exhaust pressure command and a fuel injection command in response to determining that a temperature of the exhaust gas stream is lower than the desired inlet exhaust gas temperature. The exhaust gas pressure device is responsive to the exhaust pressure command and the fuel injection system is responsive to the fuel injection command. | 06-16-2011 |
| 20110253116 | INTERNAL COMBUSTION ENGINE CONTROL APPARATUS - An internal combustion engine control apparatus includes means that detects an inlet temperature that is a temperature in a vicinity of an inlet of a purification catalyst disposed in an exhaust path and means that detects a turbine temperature that is a temperature in a vicinity of an exhaust turbine of a turbo-supercharger disposed in the exhaust path, and also includes means that controls a valve overlap that is a state in which an intake valve and an exhaust valve of the internal combustion engine are open simultaneously. When the inlet temperature is lower than an inlet high temperature reference value, and the turbine temperature is higher than a turbine high temperature reference value that is higher than the inlet high temperature reference value, the valve overlap amount is increased so as to be greater than a turbine high temperature time reference amount. | 10-20-2011 |
| 20110315133 | AUTOMATIC CHOKE FOR AN ENGINE - An internal combustion engine includes a muffler configured to reduce exhaust gas noise, a choke valve configured to control a flow of air in a carburetor, a thermally responsive element coupled with the choke valve and configured to move the choke valve in response to a temperature change in the thermally responsive element, and a thermally conductive member. The muffler has a housing defining an interior and an exterior. The thermally conductive member has a first portion positioned in the interior of the muffler in direct contact with the exhaust gases and extends through the muffler housing to the exterior of the muffler. The thermally conductive member also has a second portion positioned exteriorly of the muffler and coupled to the thermally responsive element, the thermally conductive member configured to conduct heat from exhaust gases within the muffler to the thermally responsive element. | 12-29-2011 |
| 20120138032 | Engine System and Signal Processing Method Thereof - An engine system may include an engine generating torque through a crankshaft, an exhaust line that exhaust gas of the engine flows, a diesel particulate filter disposed on the exhaust line to trap particulate matters of the exhaust gas, a first pressure difference sensor configured to detect a front/rear pressure difference of the diesel particulate filter, a temperature sensor configured to detect a temperature of exhaust gas flowing into the diesel particulate filter, and a control unit that detects signal form the temperature sensor and the first pressure difference sensor in a predetermined rotation cycle of the crankshaft, uses the detected signal to calculate a front/rear pressure difference of the diesel particulate filter, and calculates a temperature of exhaust gas flowing into the diesel particulate filter. A corresponding signal processing method is also described. | 06-07-2012 |
| 20120138033 | GLOW PLUG HEATER CONTROL - Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced in order to reduce tailpipe emissions. | 06-07-2012 |
| 20120227719 | Method and System for Humidity Sensor Diagnostics - Methods and systems are provided for an engine including a humidity sensor. Degradation of the humidity sensor may be determined based on a change in intake air relative humidity as compared to a change in intake air temperature or pressure, under selected conditions. An amount of exhaust gas recirculated to an engine intake is adjusted differently based on whether the humidity sensor is degraded or functional. | 09-13-2012 |
| 20120298085 | FUEL INJECTION CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - A fuel injection control apparatus for controlling an amount of fuel injection into a fuel injection port of an intake passage in an internal combustion engine, the fuel injection control apparatus including an exhaust air-fuel ratio sensor configured to detect an exhaust air-fuel ratio, an exhaust temperature sensor configured to detect an exhaust temperature, an intake air flow meter configured to detect an intake air amount in the intake passage, and a controller configured to estimate a wall flow amount of the fuel injection port based on the fuel injection amount, the exhaust air-fuel ratio, and the intake air amount, estimate a catalyst bed temperature of a catalyst provided in an exhaust passage based on the exhaust air-fuel ratio and the exhaust temperature and to correct the estimated catalyst bed temperature in accordance with the wall flow amount, and control the fuel injection amount based on the catalyst bed temperature. | 11-29-2012 |
| 20130087129 | GLOW PLUG HEATER CONTROL - Methods and systems for operating a glow plug are disclosed. In one example, current supplied to a glow plug can be controlled to promote combustion stability of a cylinder after an engine start. Engine feedgas hydrocarbons may be reduced during conditions where combustion stability may be otherwise reduced to reduce tailpipe emissions. | 04-11-2013 |
| 20130291845 | AUTOMATIC CHOKE FOR AN ENGINE - An internal combustion engine includes a muffler configured to reduce exhaust gas noise. The muffler has a housing defining an interior and an exterior. A choke valve is configured to control a flow of air in a carburetor and a thermally responsive element is coupled with the choke valve and configured to move the choke valve in response to a temperature change in the thermally responsive element. A thermally conductive member has a first portion positioned in the interior of the muffler and extending through the muffler housing to the exterior of the muffler, and a second portion positioned exteriorly of the muffler and coupled to the thermally responsive element. The thermally conductive member is configured to conduct heat from exhaust gases within the muffler to the thermally responsive element. | 11-07-2013 |
| 20140123968 | METHOD AND APPARATUS FOR CONTROLLING THE OPERATION OF A TURBOCHARGED INTERNAL COMBUSTION ENGINE - A method and apparatus for controlling the operation of a turbocharged internal combustion engine 10 with an exhaust gas aftertreatment device 20, wherein the operation of a wastegate of the turbocharger is based upon the exhaust gas aftertreatment device temperature and at least one of engine speed, engine fuel injection quantity, coolant temperature, ambient temperature and barometric pressure. | 05-08-2014 |
| 20140150761 | DRIVE SYSTEM FOR A MOTOR VEHICLE - A drive system for a motor vehicle, having an internal combustion engine, an air and exhaust gas system, which includes at least one throttle, an exhaust gas recirculation system, which is in fluidic connection with the air and exhaust gas system at two connecting points, and a measuring device, which is designed to detect an atmospheric pressure, to detect a gas pressure at a measuring point within the air and exhaust gas system, and to ascertain a differential pressure as a function of the gas pressure and the atmospheric pressure, the measuring point being fluidically situated between the throttle and the internal combustion engine and in a region of one of the connecting points. | 06-05-2014 |
| 20140196704 | TURBOCHARGER BOOST CONTROL USING EXHAUST PRESSURE ESTIMATED FROM ENGINE CYLINDER PRESSURE - Controlling turbocharger boost pressure using exhaust pressure estimated from engine cylinder pressure. | 07-17-2014 |
| 20140373822 | SYSTEM AND METHOD FOR A SELF-ADJUSTING DUAL FUEL GAS CONTROL - This disclosure provides a system and method that eliminates the need for manually calibrating or adjusting a dual fuel internal combustion engine to compensate for variations in composition of a gaseous fuel or other variations, such as ambient or site conditions. The system and method functions by determining an engine load, determining an advantageous gaseous fuel substitution rate from the engine load and speed in addition to an actual gaseous fuel substitution rate, modifying the advantageous gaseous fuel substitution rate by a minimum liquid fuel flow rate, engine protection parameters, and oxidation catalyst protection parameters, and then determining an error term in response to the modified advantageous gaseous fuel substitution rate and the actual gaseous fuel substitution rate. The error term is used to adjust a gaseous fuel control valve. | 12-25-2014 |
| 20150101583 | METHOD OF CONTROLLING AN EXHAUST RECIRCULATION GAS SYSTEM - A method of controlling an exhaust gas recirculation system of an internal combustion engine is disclosed. The engine includes a compressor, an intake manifold, an after-treatment system, a low pressure EGR system and a high pressure EGR system. The method temporarily adjusts a low pressure EGR ratio, keeping constant a total EGR rate, after verifying at least one among compressor parameters, after-treatment system parameters or intake manifold parameter. | 04-16-2015 |
| 20150114374 | DETERMINATION OF THE EFFECTIVE FUEL-AIR RATIO OF A SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH SCAVENGING AIR COMPONENT - A method for the fuel consumption reduction and/or power increase of an internal combustion engine of a motor vehicle is disclosed. A crank angle of a crankshaft is detected at which out of a cylinder the exhaust gases of a cylinder can be representatively measured on a lambda probe. The exhaust gas flow is measured on the lambda probe. A signal of the lambda probe is scanned at the time of the detection of the crank angle. A value indicated the detected angle and/or the scanned signal is sent to a computer. The value is corrected with the help of an exhaust gas pressure or exhaust gas back pressure model stored in the computer. An effective combustion lambda of the cylinder is calculated based on the sent values and a global lambda value stored in the computer and used to the control of the internal combustion engine. | 04-30-2015 |
| 20150128921 | Exhaust Manifold Comprising an EGR Passage and a Coolant Passage - Disclosed is an exhaust manifold that comprises an exhaust gas passage, an EGR passage, and a coolant passage. The exhaust gas passage extends fluidly between an exhaust gas inlet and an exhaust gas outlet positioned downstream thereof. The EGR passage extends fluidly between an EGR inlet and an EGR outlet positioned downstream thereof. The EGR inlet is defined by the exhaust gas passage. A coolant passage extends fluidly between a coolant inlet and a coolant outlet positioned downstream thereof. The coolant passage overlaps the exhaust gas passage and the EGR passage. The exhaust gas passage is configured to cool the exhaust gas, and EGR passage is configured to cool the recirculated portion of the exhaust gas. | 05-14-2015 |
| 20150136099 | VALVE FOR A FUEL SYSTEM FOR A COMBUSTION ENGINE AND METHOD FOR CONTROLLING A FUEL SYSTEM FOR A COMBUSTION ENGINE | 05-21-2015 |
| 20150136100 | Fuel Injection Device - A fuel injection device is provided with an injection instruction unit that instructs multiple fuel injection valves that inject fuel into respective multiple cylinders of an engine to perform fuel injection while the engine is stopped. The injection instruction unit instructs the multiple fuel injection valves to perform the fuel injection while the engine is stopped on the basis of at least one of an amount of heat from combustion gas with respect to at least one of the multiple fuel injection valves and an amount of heat radiated therefrom. The injection instruction unit refers to an EGR rate before the engine is stopped and reduces the fuel injection while the engine is stopped as the EGR rate is lower. | 05-21-2015 |
| 20150144116 | CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND CONTROLLING METHOD FOR INTERNAL COMBUSTION ENGINE - A control system executes failure detection of a direct injector when a port injector stops injection and the direct injector injects, and executes the failure detection when a recirculation passage is closed by an EGR valve. | 05-28-2015 |
| 20150300296 | INTERNALLY COOLED EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD THEREOF - An internal combustion engine is provided equipped with an exhaust gas recirculating (EGR) system and means for internally cooling the exhaust gases by a spray of atomized water into the recirculated exhaust gases prior to ignition. The atomized water spray may be in the intake manifold or directly in the cylinder. The engine may employ spark or compression ignition. The internal combustion engine operates with compression ratios greater than 12:1 and lean air:fuel ratios. Also provided is a method for controlling the amount of exhaust gas recirculated in the engine, and for controlling the amount of water added. The inventive engines have elevated thermodynamic efficiencies and favorable NOx emissions. | 10-22-2015 |
| 20160053698 | MEMS BOLOMETER SENSOR FOR MEASURING TEMPERATURE IN AN EXHAUST PIPE OF AN AUTOMOTIVE VEHICLE - A control system for an internal combustion engine includes a temperature sensor and an engine controller. The sensor measures the temperature of exhaust gas passing through an exhaust manifold of the engine during each cycle. The controller selectively operates the engine in a first state and a second state. In the first, normal state, a quantity of fuel based on an open loop fuel mass command value is injected into the engine each cycle. In the second state, the controller determines a temperature of the exhaust gas during a normal cycle, injects the quantity and additional fuel into the engine during a second cycle, determines the temperature of the exhaust gas during the second cycle, compares the temperatures, and adjusts the command value for fuel to be injected each cycle when operating the engine in the first state. | 02-25-2016 |
| 20160076470 | EXHAUST GAS RECIRCULATION DEVICE - An exhaust gas recirculation device capable of restraining generation of condensate water in an EGR path after engine stoppage is provided. When ignition is switched from ON to OFF, fuel injection is prohibited. As a result, a gas (fresh air) that flows into a cylinder after the switching is discharged into an exhaust passage without burning. In the present invention, a valve opening timing of an exhaust valve is changed so that a high peak portion of a pulsation of the gas arises at an EGR branch point, and the EGR valve is opened. Thereby, the fresh air flowing in the exhaust passage can be introduced into an EGR passage, and therefore an EGR gas in the EGR passage can be replaced with the fresh air. | 03-17-2016 |
| 20160097314 | METHOD AND APPARATUS FOR ESTIMATING NITROGEN OXIDES OUT OF AN ENGINE - A system is provided and includes a fuel module that, based on a crankshaft angle of an engine, generates a value indicative of an amount of fuel burned in a cylinder or a change in the amount of fuel burned. A heat release module, based on the value, determines an amount of heat released during a combustion event of the cylinder. A pressure module, based on the amount of heat released, estimates a pressure in the cylinder. A temperature module, based on the pressure, estimates a temperature in the cylinder. A concentration module, based on the pressure or the temperature, estimates nitrogen oxide concentration levels in the cylinder. An output module, based on the nitrogen oxide concentration levels, estimates an amount of nitrogen oxides. A control module, based on the amount of nitrogen oxides out of the cylinder, controls operation of the engine or an exhaust system. | 04-07-2016 |
| 20160144318 | SYSTEM AND METHOD FOR CONTROLLING CONDITIONS FOR ENTRY INTO FUEL CUT MODE - A system for controlling a condition for entry into a fuel cut mode comprises a controller that receives a temperature of a catalyst in a catalytic converter and determines whether the temperature is within a temperature range in which the catalyst is activated, wherein the controller changes a condition for entry into the fuel cut mode according to the temperature. | 05-26-2016 |
