CUMMINS INC. Patent applications |
Patent application number | Title | Published |
20160130995 | OIL PAN DESIGN FOR DRAWING TWO SUMPS FROM A SINGLE DRAIN PLUG - Oil pan assemblies and methods of draining oil pans are disclosed. An example oil pan assembly includes an oil pan defining first and second sumps. The first sump has a first lower surface and the second sump has a second lower surface. The second lower surface is elevated along a vertical axis relative to the first lower surface. The oil pan assembly also includes a siphon tube extending from an inlet positioned in the second sump to an outlet positioned proximate a drain hole in the first sump. The siphon tube is configured to automatically transmit oil from the second sump to the first sump upon oil being drained from the drain hole. | 05-12-2016 |
20160097366 | VARIABLE IGNITION ENERGY MANAGEMENT - A method for energy ignition management of a spark-ignition engine includes receiving, by a controller, at least one ignition energy characteristic to affect control of at least one combustion cylinder. The method further includes controlling the at least one combustion cylinder via the controller. Controlling the at least one combustion cylinder via the controller includes adjusting the at least one ignition energy characteristic in response to at least one operating condition of the engine. The at least one ignition energy characteristic is a magnitude of one of a current or voltage of spark energy. | 04-07-2016 |
20160097305 | OXIDATION CATALYST FOR WASTE HEAT RECOVERY PERFORMANCE IMPROVEMENT - An exhaust system for an engine include a first exhaust system portion that receives exhaust from one or more combustion chambers of the engine. The exhaust system also includes an oxidation catalyst having an inlet and an outlet. The inlet of the oxidation catalyst is in fluid communication with the first exhaust system portion and receives exhaust from the one or more combustion chambers of the engine. The exhaust system also includes a second exhaust system portion that receives exhaust gases downstream from the outlet of the oxidation catalyst. A waste heat recovery system is in thermal communication with the second exhaust system portion that receives exhaust gases from the outlet of the oxidation catalyst. In some instances, the exhaust system may omit other aftertreatment components. | 04-07-2016 |
20160084180 | ENGINE FEEDBACK CONTROL SYSTEM AND METHOD - This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions. | 03-24-2016 |
20160054736 | APPARATUS AND METHOD FOR GROUPING VEHICLES FOR COOPERATIVE DRIVING - An apparatus includes a logistics manager that includes a processor. The logistics manager is communicably coupled to at least one of a first wireless communication module onboard a first vehicle and a second wireless communication module onboard a second vehicle. The logistics manager is configured to: receive, via the first wireless communication module, first data regarding the first vehicle, where the first data is provided by a first sensor module onboard the first vehicle; receive, via the second wireless communication module, second data regarding the second vehicle, where the second data is provided by a second sensor module onboard the second vehicle; and provide navigational commands to at least one of the first vehicle and the second vehicle based on a cost and benefit analysis in response to at least one the first data and the second data. | 02-25-2016 |
20160053730 | CONFIGURABLE OUTPUT DRIVER ASIC - A fuel system includes an electronic control module (ECM), at least one injector coupled to the ECM, and a configurable output driver circuit coupled to the at least one injector. The configurable output driver circuit includes a channel that enables adaptation of ECM outputs. The configurable output driver circuit is configurable based on a value stored in a register circuit. | 02-25-2016 |
20160047665 | ONLINE OPTIMAL REFUELING MANAGEMENT - An apparatus remotely provides refueling management instructions for a vehicle. One or more initial vehicle parameters are determined, including an initial quantity of fuel, a plurality of route parameters including a starting point, an ending point and an estimated average fuel efficiency of the vehicle, and a plurality of refueling parameters including one or more refueling locations. The sufficiency of an initial quantity of fuel is evaluated in relation to the estimated average fuel efficiency and a distance to be traveled by the vehicle equal to a difference between the ending point and the starting point. One or more current vehicle parameters are interpreted at a first predetermined time, a refueling agenda is created, and an associated predetermined refueling amount at each of the identified one or more refueling locations is determined. | 02-18-2016 |
20160047326 | Systems and Methods for Aftertreatment Regeneration with Dedicated EGR - Systems and methods for implementing regeneration of an aftertreatment component using exhaust gas recirculation is described. According to various embodiments, an engine system comprises an engine, a turbocharger, a fluid control valve, and a lean NO | 02-18-2016 |
20150377081 | CAM ROCKER LEVER FOR OPERATING VALVES - A cam rocker lever comprises an annular piece with an inner diameter, a cam lobe, a first linear portion, and a second linear portion. The cam lobe is disposed within the inner diameter of the annular piece. The first linear portion extends from a first side of the annular piece, and a second linear portion extends from a second side of the annular piece opposite the first side. The first linear portion is configured to connect to a stem of a valve such that the valve is displaced when the first linear portion is displaced. | 12-31-2015 |
20150361871 | SYSTEM, APPARATUS AND METHODS FOR DIVERTING AIRFLOW TO A PRESSURE SOURCE - Systems, apparatus, and methods are disclosed for diverting a portion of intake airflow from a pressure source in an internal combustion engine system. The intake airflow is diverted to, for example, an air compressor at the intake of the pressure source before the airflow is pressurized by the pressure source. | 12-17-2015 |
20150345622 | SYSTEMS AND METHODS OF ADJUSTING A TRANSMISSION SHIFT SCHEDULE - A method for a vehicle includes receiving a shift schedule for a transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle. The method further includes receiving vehicle operation data during operation of the vehicle. The method further includes determining a power to overcome vehicle losses based on the vehicle operation data. The method further includes determining an adjustment to the shift schedule to optimize a vehicle operating parameter based on the determined power to overcome vehicle losses and implementing the adjustment to the shift schedule. | 12-03-2015 |
20150343892 | SYSTEM, METHODS, AND APPARATUS FOR ENGINE COOLING SYSTEM MANAGEMENT - System, apparatus, and methods are disclosed for opening one or more louvers of an engine cooling system to provide an airflow to the radiator to reduce a radiator fan on time. | 12-03-2015 |
20150330857 | METHODS AND SYSTEMS FOR MONITORING LOADING OF AN AIR FILTER - Methods and systems for estimating the loading of an air filter are disclosed herein. The method includes receiving upstream mass air flow data indicative of a mass air flow on an upstream side of an air filter (i.e., the “dirty side of the filter”), receiving downstream air pressure data indicative of an air pressure on a downstream side of the air filter (i.e., the “clean side of the filter”), and receiving downstream temperature data indicative of a temperature on the downstream side of the air filter. The method also includes determining a differential pressure (ΔP) across the air filter indicative of a loading of the air filter based on the upstream mass air flow data, the downstream air pressure data, and the downstream temperature data. | 11-19-2015 |
20150330503 | INTEGRATED POWERTRAIN SYSTEM - A system for a vehicle includes a powertrain system including an engine, a transmission, a drive shaft, and a final drive; and a controller communicably coupled to the powertrain system. The controller is structured to: receive a shift schedule for the transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle; receive vehicle operation data during operation of the vehicle, the vehicle operation data including a current combustion recipe for the engine; determine a predicted impact of a scheduled shift event on a fuel consumption rate of the vehicle based on the current combustion recipe for the engine; determine an adjustment to the scheduled shift event based on the predicted impact; and provide a command to implement the adjustment to the scheduled shift event to the transmission of the vehicle. | 11-19-2015 |
20150330500 | POWERTRAIN OPTIMIZATION - A system for a vehicle includes a powertrain system including an engine, a transmission, a drive shaft, and a final drive. The system also includes a controller communicably coupled to the powertrain system. The controller is structured to: receive vehicle operation data during operation of a vehicle; receive route data for a route of the vehicle, wherein the route data is received in advance of the vehicle traveling the route; determine a cylinder deactivation event has occurred based on the vehicle operation data; determine an adjustment to a shift schedule for the transmission based on at least one of the cylinder deactivation event and the route data; and provide a command to implement the adjustment with the transmission. | 11-19-2015 |
20150329119 | VEHICLE COASTING SYSTEMS AND METHODS - A system for a vehicle includes a transmission, an engine, and a controller communicably coupled to the transmission and the engine. The controller is structured to receive a vehicle operating parameter, receive vehicle operation data during operation of the vehicle, determine that the vehicle is in a coasting state based on the vehicle operation data, and provide a command to control at least one of an engine and the transmission during the coasting state to at least one of optimize the vehicle operating parameter and facilitate and maintain the coasting state. | 11-19-2015 |
20150316006 | EGR Cooling System - An exhaust gas cooler and method of cooling are provided. The exhaust gas cooler includes an inlet and outlet manifold and respectively including inlet and outlet openings and respectively positioned at a first and second end of the cooler. The exhaust gas cooler includes a plurality of conduits coupled to the inlet and outlet manifold and also includes at least one side wall coupled to the inlet and outlet manifold around the plurality of conduits, such that the plurality of conduits are disposed in a region between the at least one side wall and the inlet and outlet manifold. The at least one sidewall includes a first coolant inlet opening and a first coolant outlet opening each adjacent a first end of the exhaust gas cooler, a second coolant inlet opening, and a second coolant outlet opening. The exhaust gas cooler includes a bypass conduit positioned outside of the region. | 11-05-2015 |
20150300221 | CYLINDER BLOCK WITH INTEGRATED OIL JACKET - An engine block, an engine sub-assembly, and method for providing and manufacturing an engine block. The engine block includes a plurality of cylinder barrels positioned in the engine block, at least one oil jacket channel formed in the engine block, and an oil inlet port positioned in a peripheral wall of the engine block and connected to the at least one oil jacket channel. The at least one oil jacket channel includes a plurality of curved channel sections. Each curved channel section in the plurality of curved channel sections extends about at least a portion of a circumferential portion of a respective cylinder barrel in the plurality of cylinder barrels. The at least one oil jacket channel extends between adjacent cylinder barrels of the plurality of cylinder barrels in the engine block. | 10-22-2015 |
20150292443 | SYSTEM AND METHOD FOR TURBOCHARGER COMPRESSOR SURGE CONTROL - An internal combustion engine having intake and exhaust manifolds, a turbocharger with a compressor, and at least one of: an exhaust gas recirculation (EGR) valve and a variable geometry turbine (VGT). The system further includes a control computer configured to determine at least one of torque demand, pressure across the compressor, and pressure gradient ratio between the exhaust manifold and the intake manifold relative to one of exhaust manifold pressure, intake manifold pressure, and 1. The control computer performs at least one of: closing the EGR valve in response to the determined at least one of torque demand, pressure across the compressor, and pressure gradient ratio, and lessening restriction provided by the variable geometry turbine responsive to the determined at least one of torque demand, pressure across the compressor, and pressure gradient between the exhaust manifold and the intake manifold. | 10-15-2015 |
20150285131 | MULTI-STAGE TURBOCHARGER SYSTEM WITH OFF-ENGINE LOW PRESSURE STAGE - A turbocharged internal combustion engine system includes at least one high pressure turbocharger system mounted on-engine and at least one low pressure turbocharger system mounted off-engine. An intercooler can further be mounted off-engine with the low pressure turbocharger and an aftercooler can be mounted on-engine with the high pressure turbocharger. | 10-08-2015 |
20150275892 | FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE - A high-pressure fuel pump for an internal combustion engine is described. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. More specifically, the disclosure provides for an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump. | 10-01-2015 |
20150275839 | DRIVEABILITY OF A VEHICLE EQUIPPED WITH START/STOP LOGIC - Controls for improved drivability of a vehicle equipped with start/stop logic are disclosed. One exemplary embodiment is a method comprising operating a vehicle system including an internal combustion engine and a controller configured to conditionally stop and re-start the engine. The controller tracks the distance that the vehicle has traveled since the most recent vehicle stop and determines a time limit as a function of that distance. The controller further tracks the time that an engine stop request condition has been true, evaluates that time relative to the time limit, and selectably enables or disables an engine stop based upon the relationship between said time and said time limit. | 10-01-2015 |
20150252770 | ENGINE START/STOP FUNCTION MANAGEMENT AND CONTROL ARCHITECTURE - Unique apparatuses, systems, methods, and techniques for control of engine systems are disclosed. One embodiment is a unique controls process providing engine start/stop functionality. In one form, the controls process includes engine stop controls which evaluate a plurality of engine stop request conditions and a plurality of engine stop capability conditions, as well as engine start controls which evaluate a plurality of engine start request conditions and a plurality of engine start capability conditions. | 09-10-2015 |
20150252742 | SYSTEMS AND METHODS TO REDUCE TORSIONAL CONDITIONS IN AN INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a number of cylinders and a controller operably connected to interpret operating parameters related to the operation of the number of cylinders. A cylinder torque adjustment for each cylinder is determined from the operating parameters to provide a torque balancing response that reduces noise, vibration and/or harshness in engine operation. | 09-10-2015 |
20150252714 | NOx SENSOR BASED OUTPUT DISABLEMENT IN RESPONSE TO EXHAUST SYSTEM HIGH FREQUENCY PRESSURE PULSATIONS - Systems, methods and apparatus are disclosed for disabling control of one or more outputs of an internal combustion engine system in response to an engine-out NOx sensor during a high frequency pressure pulsation associated with the exhaust gas at the engine-out NOx sensor. A high frequency pressure pulsation event may be determined in response to a pressure sensor measurement, or in response to operating parameters of one or more components of the system indicating high torque output conditions, and/or by a blade position of a turbine adjacent the NOx sensor indicating passage of the exhaust gas pressure pulsations to the NOx sensor. | 09-10-2015 |
20150241399 | SYSTEMS AND METHODS FOR DETERMINING COMBUSTION PROPERTIES OF WELLHEAD GAS - Disclosed are methods, systems, and computer-readable mediums for determining combustion properties of wellhead gas. A methane concentration of a gas mixture is measured. A non-methane hydrocarbon concentration of the gas mixture is measured. An inert concentration of the gas mixture is calculated. A first surrogate for the non-methane hydrocarbon concentration is selected, where the first surrogate is selected as propane if the methane concentration is greater than a first threshold, and where the first surrogate is selected as pentane if the methane concentration is less than or equal to the first threshold. A methane number of the gas mixture is determined, where the methane number is based on the methane concentration, the first surrogate, and the inert concentration. | 08-27-2015 |
20150240697 | Turbocharger Exhaust Manifold System - An engine subassembly and method of assembling an engine subassembly. The engine subassembly includes an exhaust manifold including an exit conduit. The exit conduit includes a first flange disposed about a peripheral portion of the exit conduit. The engine subassembly also includes a turbo charger including an entry conduit. The entry conduit further includes a second flange disposed about a peripheral portion of the entry conduit. The turbocharger engaged with the exhaust manifold such that the first flange is engaged with the second flange. The engine subassembly also includes an extension protruding axially from one of the entry conduit and the exit conduit. The extension includes at least one protrusion extending at least in part in a radial direction from the extension. The protrusion is configured for engagement with a channel formed in a wall of the other one of the entry conduit and the exit conduit. | 08-27-2015 |
20150240686 | EXHAUST THROTTLE CONTROL FOR AFTERTREATMENT SYSTEM THERMAL MANAGEMENT - Systems, methods and apparatus are disclosed for thermal management of an SCR catalyst in an exhaust aftertreatment system of an internal combustion engine that includes an exhaust throttle but lacks a particulate filter. The thermal management can include interpreting, initiating, and/or completing a thermal management event for the SCR catalyst for removal of contaminants such as hydrocarbons and urea deposits. The thermal management event includes at least one of closing the exhaust throttle and increasing the thermal output of the engine to expose the SCR catalyst to a sufficiently high temperature over a time period that desorbs a sufficient amount of the hydrocarbons and/or removes a sufficient amount of the urea deposits to restore SCR catalyst performance. | 08-27-2015 |
20150239457 | SYSTEMS AND METHODS FOR CONTROL OF POWERTRAINS WITH REGENERATIVE START/STOP ALTERNATOR FUNCTIONALITY - Systems and methods are disclosed for controlling a torque output of a motor/generator via one or more torque commands generated by a controller. The target output being determined by a target torque based upon a low voltage side target of a DC/DC converter including a battery operatively coupled to one or more low voltage loads, a high voltage side target of the DC/DC converter including a supercapacitor operatively coupled with an inverter that is operatively coupled to the motor/generator, and a ripple compensation torque. | 08-27-2015 |
20150231625 | DIAGNOSIS AND TREATMENT OF SELECTIVE CATALYTIC REDUCTION CATALYST - Described herein is a selective catalytic reduction (SCR) catalyst treatment system that includes a vanadium-based SCR catalyst contaminated with a water-soluble contaminant. The SCR catalyst treatment system also includes a water delivery system that is configured to apply water to the vanadium-based SCR catalyst to remove the water-soluble contaminant from the vanadium-based SCR catalyst. | 08-20-2015 |
20150226102 | TECHNIQUES FOR CONTROL OF AN SCR AFTERTREATMENT SYSTEM - A selective catalytic reduction (SCR) catalyst is disposed in an exhaust gas system of an internal combustion engine. A reductant injector is coupled to the exhaust gas stream at a position upstream of the SCR catalyst, and first and second NO | 08-13-2015 |
20150219054 | FUEL INJECTION PRESSURE PULSATION DAMPENING SYSTEM - A fuel injector has a plurality of injection fuel delivery passages, which transport fuel from a proximate end to an injector cavity near the distal end of the fuel injector, wherein less than a total number of injection fuel delivery passages include an orifice. This configuration provides a reduction in fueling variation from pulse to pulse (multi-pulse) with respect to pulse separation due to pressure variation while allowing a sufficient amount of fuel flow to the injector cavity. Thus, the consistency of Start-Of-Injection (SOI) and opening rate both improve significantly and advantageously. For compactness, the orifices may be positioned in a cover plate used to retain the components of the injection control valve assembly and may further be arranged in an arc segment when viewed along a longitudinal axis. | 08-06-2015 |
20150219027 | CYLINDER PRESSURE BASED CONTROL OF DUAL FUEL ENGINES - Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fuelling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations. | 08-06-2015 |
20150219023 | FUEL SELECTION SYSTEM AND METHOD FOR DUAL FUEL ENGINES - Systems and methods for controlling operation of dual fuel internal combustion engines are disclosed. The control techniques provide for override of a dual fuel mode of operation of the engine by selection of a diesel only fuelling mode in response to one or more operating conditions of the internal combustion engine. | 08-06-2015 |
20150218992 | TARGETED REGENERATION OF A CATALYST IN AN AFTERTREATMENT SYSTEM - Systems, methods and apparatus are disclosed for targeted regeneration of a catalyst device in an exhaust aftertreatment system of an internal combustion engine. The targeted regeneration can include interpreting, initiating, and/or completing a regeneration event for an SCR catalyst or other type of catalyst in response to a catalyst deactivation condition. A catalyst regeneration event includes at least one of exposing the catalyst to a sufficiently high temperature over a time period that removes contaminants from the catalyst and manipulation of the exhaust gas composition to initiate and/or accelerate removal of contaminants from the catalyst. | 08-06-2015 |
20150210229 | INDUCTIVE HARNESS COUPLING AND COMMUNICATION FOR DISTRIBUTED ARCHITECTURES - An apparatus includes an AC power module that provides alternating current (“AC”) electrical power; a power distribution wiring harness that receives the AC electrical power from the AC power module; a signal injection module that injects a communication signal on the power distribution wiring harness using signal modulation; and a plurality of inductive coupling modules, each inductive coupling module inductively receiving power and the communication signal from a location along the power distribution wiring harness, wherein each inductive coupling module is structured to transmit at least one of the power and the communication signal to one or more loads, wherein each inductive coupling module is separate from other inductive coupling modules in the plurality of inductive coupling modules. | 07-30-2015 |
20150204294 | TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL | 07-23-2015 |
20150176510 | CONTROL SYSTEM FOR A MODEL-BASED KNOCK SUPPRESSION SYSTEM USING A MULTIPLE ACTUATION STRATEGY - The present invention provides for predicting peak cylinder temperatures above which knock in an engine may become more frequent and then provides one or more actuation approaches to reduce the knock of the engine while maintaining engine performance. The actuation approaches of the present invention include one or more of direct injection, engine gas recirculation, and spark retarding, where the application of one or more the actuation approaches is determined based upon using operational and engine characteristic inputs as well as modeling and estimation values as inputs in a feedforward control methodology. | 06-25-2015 |
20150159588 | EGR CYLINDER OPERATION IN AN INTERNAL COMBUSTION ENGINE - A system includes an internal combustion engine having a number of cylinders. At least one of the cylinders is a primary EGR cylinder that solely provides EGR flow during at least some operating conditions. Operation of the primary EGR cylinder is controlled separately from the other cylinders to reduce internal residuals in the primary EGR cylinder. | 06-11-2015 |
20150159535 | WASTE HEAT RECOVERY SYSTEM INCLUDING A CLUTCHED FEEDPUMP - An engine including a WHR system includes a clutch positioned to engage or disengage a WHR feedpump that moves working fluid through a WHR circuit. The clutch engages or disengages the feedpump under certain operating conditions of the engine and/or the WHR system, and/or at the request of an operator of the engine. Conditions may include cool or cold components, and insufficient working fluid. The operator may also request the clutch be disengaged, such as might be advantageous if the operator detects an operational problem with the WHR system or determines there is an advantage to operating the engine without the WHR system. | 06-11-2015 |
20150152832 | DUAL COIL IGNITION SYSTEM - A method of responding to a detected blowout in a coil ignition system is provided in this disclosure. The method includes receiving a characteristic regarding operation of a coil ignition system; determining a blowout condition exists for the coil ignition system based on the characteristic; and providing a command to the coil ignition system based on the determination that the blowout condition exists, wherein the command is structured to reduce a residual charge amount in the coil ignition system. | 06-04-2015 |
20150142229 | HYBRID CONTROLS ARCHITECTURE - Apparatuses, methods and systems for hybrid powertrain control are disclosed. Certain example embodiments control an internal combustion engine and a motor/generator of a hybrid electric powertrain. Example controls may determine a total output demanded of a powertrain based at least in part upon an operator input, a battery output target based upon a battery state of charge and independent of the operator input, and an engine output target based upon the total output demanded and the battery output target. Such example controls may further determine a constrained engine output target, a modified battery output target based upon the total output demanded and the constrained engine output target, and a constrained battery output target based upon the modified battery output target and a battery constraint. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and figures. | 05-21-2015 |
20150135680 | THERMAL MANAGEMENT FOR REGENERATING AN AFTERTREATMENT DEVICE - A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device. | 05-21-2015 |
20150113966 | AFTERTREATMENT SYSTEMS WITH REDUCED N2O GENERATION - Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N | 04-30-2015 |
20150113949 | SELECTIVELY TRAPPING AND STORING SO3 IN AN EXHAUST GAS EFFLUENT - Systems, apparatus, and methods for selectively, preferentially, and/or actively removing or trapping SO | 04-30-2015 |
20150113947 | SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF AFTERTREATMENT SYSTEM COMPONENTS - An exhaust aftertreatment system includes an oxidation catalyst and a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an internal combustion engine. A stay warm thermal management strategy is employed after warm-up of the aftertreatment system is complete to maintain the aftertreatment system above a temperature providing a desired performance threshold of one or more components of the aftertreatment system, such as the oxidation catalyst or the SCR catalyst. | 04-30-2015 |
20150092809 | SYSTEMS AND METHODS FOR ON-BOARD DIAGNOSTICS OF A PARTICULATE MATTER FILTER - An apparatus, system, and method are provided for determining a health value of a catalyzed diesel particulate filter using a midbed temperature of the catalyzed diesel particulate filter and a reference temperature. | 04-02-2015 |
20150082871 | ONBOARD DIAGNOSTIC OF ENGINE OIL QUALITY BY USING A TRANSFER FUNCTION WITH A PLURALITY OF FLUID PROPERTY SENSORS - A system and method for measuring engine oil quality is disclosed. The system and method include: a plurality of sensors detecting oil quality data; and a processor in communication with the plurality of sensors to receive the oil quality data and adapted to execute a transfer function to output qualitative and quantitative measurements with respect to contamination of the oil based upon the oil quality data. | 03-26-2015 |
20150047450 | SCISSORS GEAR - A variety of scissors gear assemblies are disclosed that utilize integral parts or common tools to align teeth of the scissors gear assembly. Methods of use are also disclosed. | 02-19-2015 |
20150040857 | INTERNAL COMBUSTION ENGINE INCLUDING AN INJECTOR COMBUSTION SEAL POSITIONED BETWEEN A FUEL INJECTOR AND AN ENGINE BODY - This disclosure provides a fuel injector seal assembly comprising a seal component fabricated or formed of a first material and a thermally conductive or heat transfer component fabricated or formed of a second material that is different from the first material. The first material has a greater strength than the second material, and the second material has a greater thermal conductivity than the first material. Thus, the injector seal assembly is able to provide a primary benefit of a combustion seal while also providing an enhanced benefit of transferring heat from one portion of the fuel injector to another portion of the fuel injector. | 02-12-2015 |
20150040562 | GASEOUS FUEL MIXER FOR INTERNAL COMBUSTION ENGINE - A gaseous fuel mixer for an internal combustion engine includes a check valve. The check valve includes a check valve member that induces mixing of a gaseous fuel flow and an intake air flow as the gaseous fuel flow and intake air flow move or pass from an upstream side of the check valve to a downstream side of the check valve. | 02-12-2015 |
20150039215 | ONLINE OPTIMAL REFUELING MANAGEMENT - A method and system for remotely determining real-time operating fuel efficiencies based on dynamic operating characteristics of a vehicle to generate an optimal refueling management approach for the vehicle by providing refueling locations and associated refueling amounts for each refueling location, to achieve improved vehicle fuel economy, is provided. | 02-05-2015 |
20150027115 | INTERSTAGE GAS INJECTION FOR MULTI-STAGE TURBOCHARGED NATURAL GAS ENGINE - A turbocharged internal combustion engine system includes at least one high pressure turbocharger and at least one low pressure turbocharger arranged in series. A fuel source that provides fuel for gaseous fuel induction operation of the engine is connected to inject fuel between the low pressure compressor of the low pressure turbocharger and the high pressure compressor of the high pressure turbocharger. | 01-29-2015 |
20150020777 | SYSTEM AND METHOD FOR ESTIMATING HIGH-PRESSURE FUEL LEAKAGE IN A COMMON RAIL FUEL SYSTEM - A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator. | 01-22-2015 |
20150020386 | METHOD OF REPAIRING A CRACKED HEAD USING AN INJECTOR BORE INSERT - A method for repairing a multi-valve cylinder head, having a fuel injector or spark plug, or pre-chamber opening near the valve openings, that provides an insert with structural integrity that is capable of providing for both a repair for the crack and injector sleeve functionality in the finish-machined cylinder head. The present invention overcomes the consequences and structural limitations typically confronting larger diameter configurations while providing for a reliable sealing approach. | 01-22-2015 |
20140271389 | SOLID STORAGE MEDIA CHARGING WITH AMMONIA FOR USE IN SELECTIVE CATALYTIC REDUCTION - There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia. | 09-18-2014 |
20140261350 | ACTIVE CONTROL OF ONE OR MORE EGR LOOPS - Active control of one or more exhaust gas recirculation loops is provided to manage and EGR fraction in the charge flow to produce desired operating conditions and/or provide diagnostics in response to at least one of an oxygen concentration and a NOx concentration in the charge flow and in the exhaust flow. | 09-18-2014 |
20140261322 | MULTI-FUEL FLOW SYSTEMS AND METHODS WITH DEDICATED EXHAUST GAS RECIRCULATION - Systems and methods for fuelling a plurality of cylinders of an internal combustion engine are disclosed. The system includes a dedicated exhaust gas recirculation system for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a fueling system to provide a first flow of fuel to each of the plurality of cylinders and a second flow of fuel to each of the dedicated cylinders that is in addition to the first flow of fuel. | 09-18-2014 |
20140260239 | MULTI-STAGE TURBOCHARGER SYSTEM WITH INTERCOOLING AND AFTERCOOLING - A turbocharged internal combustion engine system includes at least one high pressure turbocharger system and at least one low pressure turbocharger system. An air-to-air intercooler is connected between the low pressure compressor of the low pressure turbocharger system and the high pressure compressor of the high pressure turbocharger system. An air-to-water aftercooler is connected to the intake system between the high pressure compressors and the intakes of the cylinders of the internal combustion engine. | 09-18-2014 |
20140260202 | REDUCTANT MATERIAL DEPOSIT REDUCTION IN EXHAUST AFTERTREATMENT SYSTEMS - In one non-limiting embodiment, an apparatus for treating exhaust includes a reductant injector, an aftertreatment component including a NO | 09-18-2014 |
20140251275 | FUEL INJECTOR FUELING EQUALIZATION SYSTEM AND METHOD - The disclosure provides a system and method for detecting inhomogeneous fueling between fuel injectors in an internal combustion engine without resorting to a measurement of the amount of fuel delivered by each fuel injector, permitting rapid and effective adjustment of fueling by any fuel injector deviating from the homogeneity of other fuel injectors in the engine. The benefit of modifying fueling in this manner is that fueling by each fuel injector | 09-11-2014 |
20140245983 | AIR INTAKE SYSTEM FOR INTERNAL COMBUSTION ENGINE - An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, swirl consistency is improved between engine cylinders and between the left bank and the right bank, improving the consistency of power output and reducing emissions, particularly particulate emissions, also called smoke. | 09-04-2014 |
20140241947 | SYSTEM, METHOD, AND APPARATUS FOR TREATING A PLATINUM CONTAMINATED CATALYTIC COMPONENT - An example method includes determining that a selective catalytic reduction (SCR) component having a zeolite-based catalyst is contaminated with platinum (Pt). The method further includes elevating the temperature of the SCR component to at least 600° C. in response to the determining the catalytic component is contaminated with Pt, and maintaining the elevated temperature of the catalytic component for a predetermined time period thereby restoring reduction activity of the catalyst. | 08-28-2014 |
20140237996 | SYSTEM, METHOD, AND APPARATUS FOR SULFUR RECOVERY ON AN SCR CATALYST - System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons. | 08-28-2014 |
20140237995 | SYSTEM, METHOD, AND APPARATUS FOR SULFUR RECOVERY ON AN SCR CATALYST - System, apparatus, and methods are disclosed for treating a reduction catalyst that has been exposed to an amount of sulfur. The treating of the reduction catalyst includes providing a fluid stream at a position upstream of the reduction catalyst. The fluid stream includes a temperature and a reductant amount, and the reductant amount includes an amount of urea, ammonia, or hydrocarbons. | 08-28-2014 |
20140230413 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING AN AFTERTREATMENT SYSTEM HAVING A PARTICULATE FILTER AND A RICH NOX CONVERSION DEVICE - A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NO | 08-21-2014 |
20140222264 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes operating a hybrid power train having an internal combustion engine and an electrical torque provider. The method further includes determining a machine power demand and an audible noise limit value for the internal combustion engine. The method includes determining a power division description in response to the machine power demand and the audible noise limit value, and operating the internal combustion engine and the electrical torque provider in response to the power division description. | 08-07-2014 |
20140222263 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A system includes a hybrid power train including an engine, a first electrical torque provider, and a second electrical torque provider. The system further includes a load mechanically coupled to the hybrid power train. The hybrid power train further includes a clutch coupled to the engine and the second electrical torque provider on a first side, and coupled to the first electrical torque provider and the load on a second side. The system further includes an electrical energy storage device electrically coupled to the electrical torque providers. The system further includes a controller that performs operations to smooth torque commands for the engine and the second electrical torque provider in response to determining that a clutch engage-disengage event occurring or imminent. | 08-07-2014 |
20140222262 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A system includes a hybrid power train comprising an internal combustion engine and electrical system, which includes a first and second electrical torque provider, and an electrical energy storage device electrically coupled to first and second electrical torque provider. The system further includes a controller structured to perform operations including determining a power surplus value of the electrical system; determining a machine power demand change value; in response to the power surplus value of the electrical system being greater than or equal to the machine power demand change value, operating an optimum cost controller to determine a power division for the engine, first electrical torque provider, and second electrical torque provider; and in response to the power surplus value of the electrical system being less than the machine power demand change value, operating a rule-based controller to determine the power division for the engine, first, and second electrical torque provider. | 08-07-2014 |
20140214346 | ADAPTIVE AVAILABLE POWER ESTIMATION FOR HIGH VOLTAGE LITHIUM ION BATTERY - The present invention provides for a method and computer program product for estimating battery available power from a battery system in relation to a cell voltage, comprising: determining the cell voltage, a power command of the battery system; and a cell voltage threshold. The processes used by the present invention, include a static and a dynamic portion in which cell voltages, cell voltage thresholds and power command are associated and processed using a feed forward estimator and a proportional-integral-derivation (PID) controller to determine the final power command estimation for the requisite battery system. | 07-31-2014 |
20140202433 | SYSTEMS AND METHODS FOR DEDICATED EXHAUST GAS RECIRCULATION AND CONTROL - Systems and methods for exhaust gas recirculation are provided. The system includes a dedicated exhaust gas recirculation loop for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a low pressure exhaust gas recirculation loop for increasing the exhaust gas recirculation amount above that provided by the dedicated exhaust gas recirculation loop. | 07-24-2014 |
20140200852 | EXHAUST MANIFOLD PRESSURE BASED MISFIRE DETECTION FOR INTERNAL COMBUSTION ENGINES - An engine cylinder misfire detection system is provided that detects changes in exhaust manifold pressure (EMP) fluctuations, compares the EMP fluctuations with diagnostic thresholds determined with other engine characteristic information obtained from engine sensor data, and determines whether a cylinder misfire has occurred. A method of monitoring and detecting EMP fluctuations in combination with one or more sensed engine characteristics is disclosed to determine an engine cylinder misfire in a cycle of an internal combustion engine having at least one cylinder. The actuation approaches of the present invention include one or more processes for a cylinder of an engine associated with a determination of various load variables including fresh air flow, engine type, engine data inputs, and analytical determinants. | 07-17-2014 |
20140193281 | FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE - A high-pressure fuel pump for an internal combustion engine is described. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. More specifically, the disclosure provides for an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump. | 07-10-2014 |
20140190433 | VARIABLE VALVE ACTUATION APPARATUS, SYSTEM, AND METHOD - A variable valve actuation system in one form includes a rocker coupled with a valve stem at one end and a cam follower at the other end. The rocker is operable to rotate about a fixed axis and the cam follower includes a set of lower rollers operable to follow one cam lobe and an upper roller operable to follow another cam lobe. A leaf spring can be used to couple the cam follower with the rocker. A cam shaft can have a nested configuration that includes an inner shaft, an intermediate tube, and an outer tube. Cam lobes can be fastened to the cam shaft by fastening through each of the inner shaft, intermediate tube, and outer tube. The cam lobes can be attached by at least two devices inserted from either side of the cam shaft and that are not inserted at least through the inner shaft. | 07-10-2014 |
20140165557 | EMISSIONS REDUCTIONS THROUGH REGENT RELEASE CONTROL - One embodiment is a method including determining whether an ammonia storage device has a stored quantity of ammonia, predicting an impending ammonia release from the ammonia storage device, determining a NO | 06-19-2014 |
20140137554 | RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM - A waste heat recovery (WHR) system connects a working fluid to fluid passages formed in an engine block and/or a cylinder head of an internal combustion engine, forming an engine heat exchanger. The fluid passages are formed near high temperature areas of the engine, subjecting the working fluid to sufficient heat energy to vaporize the working fluid while the working fluid advantageously cools the engine block and/or cylinder head, improving fuel efficiency. The location of the engine heat exchanger downstream from an EGR boiler and upstream from an exhaust heat exchanger provides an optimal position of the engine heat exchanger with respect to the thermodynamic cycle of the WHR system, giving priority to cooling of EGR gas. The configuration of valves in the WHR system provides the ability to select a plurality of parallel flow paths for optimal operation. | 05-22-2014 |
20140134054 | SYSTEM AND APPARATUS FOR ENHANCING EXHAUST AFTERTREATMENT STARTUP EMISSIONS CONTROL - An aftertreatment system including a method which provides a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an engine; determines that an ammonia pre-load condition for the SCR catalyst is present; determines a first amount of ammonia pre-load in response to the ammonia pre-load condition; injects an amount of ammonia or urea into the exhaust stream in response to the first amount of ammonia; and adsorbs a second amount of ammonia onto the SCR catalyst in response to injecting an amount of ammonia or urea, where the second amount of ammonia is either the injected amount of ammonia or an amount of ammonia resulting from hydrolysis from the injected amount of urea. | 05-15-2014 |
20140123918 | METHOD AND SYSTEM TO DIAGNOSE THERMOSTAT FAILURE IN ENGINE WITH ONBOARD DIAGNOSTICS - A system includes an internal combustion engine having a thermostat provided to selectively allow coolant flow through the engine, and a coolant temperature determination device that provides a coolant temperature value. The system further includes a controller structured to functionally execute operations to diagnose the thermostat. The controller determines whether the engine is providing a high output operation. When the engine is providing a high output operation, the controller determines the thermostat is passed in response to the coolant temperature value exceeding a first threshold temperature value. | 05-08-2014 |
20140116027 | MULTI-LEG AFTERTREATMENT SYSTEM - An apparatus is disclosed, including an exhaust conditions module structured to interpret a diesel particulate filter (DPF) delta pressure value, a flow balance correlation, a NO | 05-01-2014 |
20140109883 | LAMBDA FEEDBACK CONTROL FOR ROBUST PARTICULATE EMISSIONS PERFORMANCE - Methods are disclosed for reducing the variability of particulate emissions in an exhaust stream from an internal combustion engine using a lambda error and/or a NO | 04-24-2014 |
20140109868 | ENGINE FEEDBACK CONTROL SYSTEM AND METHOD - This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions. | 04-24-2014 |
20140090360 | TECHNIQUES FOR RAISING EXHAUST TEMPERATURES - One embodiment is a unique strategy for raising exhaust temperatures which includes deactivating a first group of cylinders while maintaining a second group of cylinders in a combustion mode and injecting fuel into each of one of the second group of cylinders not earlier than 2 degrees before top dead center (TDC). The strategy also includes passing fuel rich exhaust from the second group of cylinders into an exhaust pathway and oxidizing at least a portion of the fuel rich exhaust in the exhaust pathway. In one form, the oxidizing occurs independent of any catalytic influence. Other embodiments include unique methods, systems, and apparatus for raising exhaust temperatures and/or regenerating one or more components of an aftertreatment system. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings. | 04-03-2014 |
20140085069 | TECHNIQUES FOR EVALUATING PERFORMANCE OF INTERNAL COMBUSTION ENGINE COMPONENTS - One embodiment is a unique strategy for evaluating performance of a component of an internal combustion engine. More particularly, in one non-limiting form a method includes operating a component, such as a heating component, and measuring a first characteristic related to its operation. The method also includes operating an engine accessory and measuring a second characteristic related to its operation, and determining performance of the component by relating the first and second characteristics to one another. In one aspect, relating the first and second characteristics to one another provides a first value which is compared to a predetermined value, and performance of the component is determined from this comparison. Other embodiments include unique methods, systems, and apparatus for evaluating or monitoring the performance of a component of an internal combustion engine, and/or for performing a procedure for starting the internal combustion engine. | 03-27-2014 |
20140056790 | CONTROL TECHNIQUES FOR AN SCR AFTERTREATMENT SYSTEM - A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the exhaust gas stream at a position upstream of the SCR catalyst, and a NO | 02-27-2014 |
20140010631 | COMPRESSOR INTAKE MIXER SYSTEM - A compressor intake mixer system for internal combustion gas engines having a compressed charge bypass system comprises a bypass charge and fuel pre-mixer connected in line with the charge bypass system to reduce pressure gradient between the high pressure bypass charge and the low pressure fuel. A single volume main mixer is connected to the compressor inlet downstream of the pre-mixer to mix the flow of premixed charge and air and provide a mixed gas to the compressor inlet. Thus a need for a separate volume for a fuel mixer and a bypass mixer is eliminated and a single volume is provided at the compressor inlet. The locational constraint of necessarily locating the volumes at the compressor inlet is also obviated by providing a pre-mixer. | 01-09-2014 |
20130333353 | CONTROL OF AFTERTREATMENT REGENERATION IN A HYBRID POWERED VEHICLE - A method for controlling aftertreatment regeneration for a system having a hybrid powertrain is described. The method includes determining that an engine aftertreatment regeneration is indicated when a regeneration request index exceeds a first threshold. The method includes determining an acceptable battery usage amount based on a current battery state of charge (SOC) and a minimum battery SOC. The method further includes determining a battery usage amount for an engine aftertreatment regeneration operation. The method includes initiating an engine aftertreatment regeneration when the battery usage amount is less than or equal to the acceptable battery usage amount. | 12-19-2013 |
20130282260 | CONTROL SYSTEM FOR A MODEL-BASED KNOCK SUPPRESSION SYSTEM USING A MULTIPLE ACTUATION STRATEGY - The present invention provides for predicting peak cylinder temperatures above which knock in an engine may become more frequent and then provides one or more actuation approaches to reduce the knock of the engine while maintaining engine performance. The actuation approaches of the present invention include one or more of direct injection, engine gas recirculation, and spark retarding, where the application of one or more the actuation approaches is determined based upon using operational and engine characteristic inputs as well as modeling and estimation values as inputs in a feedforward control methodology. | 10-24-2013 |
20130255620 | CONNECTING ROD LUBRICATION APPARATUS - An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod. | 10-03-2013 |
20130232958 | SYSTEM AND METHOD TO MANAGE SCR CATALYST NO2/NOX RATIO - Systems and methods are provided for determining and controlling an NO | 09-12-2013 |
20130219870 | SYSTEM AND METHOD FOR ON-BOARD WASTE HEAT RECOVERY - A technique is described including receiving a hydrocarbon stream, and heating the hydrocarbon stream with an exhaust steam from an internal combustion engine. This technique may include reacting the hydrocarbon stream catalytically to produce hydrogen and a modified hydrocarbon stream having a lower saturation state than the hydrocarbon stream, recovering energy from the hydrogen stream, and/or providing the modified hydrocarbon stream to a fuel supply for the internal combustion engine. | 08-29-2013 |
20130213008 | METHOD AND SYSTEM FOR IMPROVING THE ROBUSTNESS OF AFTERTREATMENT SYSTEMS - A method for treating a catalyst in an internal combustion engine is disclosed. The method comprises detecting the efficiency of a catalyst; sending the catalyst efficiency to a threshold monitor; and heating the catalyst when the detected catalyst efficiency is below a predetermined percentage. | 08-22-2013 |
20130213007 | EXHAUST GAS RECIRCULATION VALVE CONTAMINANT REMOVAL - An exhaust gas purification system including an exhaust gas passageway which routes a flow of exhaust gas from an exhaust gas source to an intake manifold; an exhaust gas passageway valve which controls flow to the intake manifold; a cooling system coupled with the exhaust passageway positioned at a location upstream of the exhaust gas source and downstream of the intake manifold and operable to transfer heat from the flow of exhaust gas to a coolant in flow communication with the cooling system; a bypass passageway coupled with the exhaust gas passageway and bypassing the cooling system; a bypass valve operable to control flow through the bypass passageway; at least one valve operation sensor; and a controller operable to control the bypass valve to direct the flow of exhaust gas to the bypass passageway during exhaust gas recirculation based on a signal from the valve operation sensor. | 08-22-2013 |
20130192567 | SYSTEMS AND METHODS FOR COMPENSATING AIRFLOW DETERMINATIONS FOR AIR COMPRESSOR BLEED - Systems and methods are disclosed for compensating a mass airflow (MAF) sensor reading to account for the bleeding or diversion of intake airflow for compressor operation in determining fresh air flow into an engine. The engine is downstream from the compressor diversion. | 08-01-2013 |
20130192564 | LASER SHOCK PEENING APPLIED TO FUEL SYSTEM PUMP HEAD - A fuel pump for pressurizing fuel and transporting the pressurized fuel to a common rail of an automotive engine is disclosed. The inner surface regions are processed by laser shock peening so that the fuel pump can provide a highly pressurized fuel to the common rail. The fuel pump includes an inlet check valve bore fluidly connected to a dome, the dome is fluidly connected to an outlet check valve bore, and the outlet check valve bore is fluidly connected to an outer check valve seat. A fuel-side surface of the fuel pump has a laser shock peened surface. The laser shock peened surface includes one or more of the fuel-side surface(s) of the inlet check valve bore, the dome, the outlet check valve bore, and/or the outlet check valve seat. | 08-01-2013 |
20130186070 | DEVICES AND METHODS FOR COMPLIANT AFTERTREATMENT COMPONENT ASSEMBLY - A controller is configured to receive an input signal from a connection device of one or more aftertreatment components in an aftertreatment system for an internal combustion engine. The controller determines from the signal(s) whether the one or more aftertreatment components are properly installed for a particular aftertreatment system associated with the engine. | 07-25-2013 |
20130184914 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes operating a hybrid power train having an internal combustion engine and an electrical torque provider. The method further includes determining a machine power demand and an audible noise limit value for the internal combustion engine. The method includes determining a power division description in response to the machine power demand and the audible noise limit value, and operating the internal combustion engine and the electrical torque provider in response to the power division description. | 07-18-2013 |
20130184913 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes operating a hybrid power train having an internal combustion engine and at least one electrical torque provider. The method further includes determining a machine power demand for the hybrid power train, and determining a power division between the internal combustion engine and the electrical torque provider in response to the machine power demand. The method further includes determining a state-of-charge (SOC) of an electrical energy storage device electrically coupled to the at least one electrical torque provider and interpreting a target SOC for the electrical energy storage device in response to a vehicle speed, and determining an SOC deviation for the electrical storage device, wherein the SOC deviation comprises a function of a difference between the SOC of the electrical energy storage device and the target SOC of the electrical energy storage device. | 07-18-2013 |
20130184912 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes operating a hybrid power train having an internal combustion engine and an electrical torque provider. The method further includes determining a machine power demand and, in response to the machine power demand, determining a power division description. The method includes operating the internal combustion engine and the electrical torque provider in response to the power division description. The method further includes operating the internal combustion engine by starting the internal combustion engine in response to determining that a battery state-of-charge is below a predetermined threshold value. | 07-18-2013 |
20130184911 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A system includes a hybrid power train including an engine, a first electrical torque provider, and a second electrical torque provider. The system further includes a load mechanically coupled to the hybrid power train. The hybrid power train further includes a clutch coupled to the engine and the second electrical torque provider on a first side, and coupled to the first electrical torque provider and the load on a second side. The system further includes an electrical energy storage device electrically coupled to the electrical torque providers. The system further includes a controller that performs operations to smooth torque commands for the engine and the second electrical torque provider in response to determining that a clutch engage-disengage event occurring or imminent. | 07-18-2013 |
20130184910 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes operating a hybrid power train having an internal combustion engine, at least one electrical torque provider, and an electrical energy storage device electrically coupled to the electrical torque provider(s). The method further includes determining a machine power demand, and determining a power division description in response to the machine power demand. The method further includes interpreting a state-of-health (SOH) for the electrical energy storage device, and in response to the SOH for the electrical energy storage device, adjusting the power division description. | 07-18-2013 |
20130184909 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A method includes defining an application operating cycle and a number of behavior matrices for a hybrid power train that powers the application, each behavior matrix corresponding to operations of the hybrid power train operating in a parallel configuration. The method includes determining a number of behavior sequences corresponding to the behavior matrices and applied sequentially to the application operating cycle, confirming a feasibility of each of the behavior sequences, determining a fitness value corresponding to each of the feasible behavior sequences, in response to the fitness value determining whether a convergence value indicates that a successful convergence has occurred, and in response to determining that a successful convergence has occurred, determining a calibration matrix in response to the behavior matrices and fitness values. The method includes providing the calibration matrix to a hybrid power train controller. | 07-18-2013 |
20130184908 | SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING POWER OUTPUT DISTRIBUTION IN A HYBRID POWER TRAIN - A system includes a hybrid power train comprising an internal combustion engine and electrical system, which includes a first and second electrical torque provider, and an electrical energy storage device electrically coupled to first and second electrical torque provider. The system further includes a controller structured to perform operations including determining a power surplus value of the electrical system; determining a machine power demand change value; in response to the power surplus value of the electrical system being greater than or equal to the machine power demand change value, operating an optimum cost controller to determine a power division for the engine, first electrical torque provider, and second electrical torque provider; and in response to the power surplus value of the electrical system being less than the machine power demand change value, operating a rule-based controller to determine the power division for the engine, first, and second electrical torque provider. | 07-18-2013 |
20130181648 | ACTUATOR CONTROL SYSTEM - A system comprising an actuator and a controller configured to drive the actuator with a pulse width modulated (PWM) signal. The controller is configured to limit a duty cycle of the PWM signal in response to a current supplied by the PWM signal. | 07-18-2013 |
20130152880 | THERMOSTAT HOUSING WHICH PROVIDES OPTIMIZED COOLANT FLOW - A thermostat housing is disclosed. The thermostat housing comprises a housing member. The housing member includes an inlet and an outlet to allow coolant to flow therethrough. The thermostat housing also includes least two thermostats within the housing member. The at least two thermostats have staggered opening temperatures. One of the at least two thermostats opens and controls a flow rate of coolant through the housing when the coolant is within a first predetermined temperature range. A single loop of coolant is being controlled within the housing member. | 06-20-2013 |
20130152549 | METHOD AND SYSTEM FOR OPTIMIZING FUEL AND REDUCTANT CONSUMPTION - An operation mode of an engine and after-treatment system is determined based on a reductant-to-fuel cost ratio. The operation mode optimizes fuel consumption and reductant consumption in an engine system including an internal combustion engine and a selective catalytic reduction (SCR) catalyst while satisfying a target emissions emission level. | 06-20-2013 |
20130139788 | FUEL DRIFT ESTIMATION AND COMPENSATION FOR OPERATION OF AN INTERNAL COMBUSTION ENGINE - Methods and systems are disclosed for fuel drift estimation and compensation using exhaust oxygen levels and fresh air flow measurements. An actual fueling to the engine cylinders is determined from the exhaust oxygen level and fresh air flow to the internal combustion engine. The actual fueling is compared to an expected fueling based on the fueling command provided to the internal combustion engine. The difference between the actual fueling and expected fueling is fuel drift error attributed to changes or drift in the fuel injection system and is used to correct or compensate future fueling commands for the fuel drift. | 06-06-2013 |
20130139506 | WASTE HEAT RECOVERY SYSTEM WITH CONSTANT POWER OUTPUT - A waste heat recovery system for use with an engine. The waste heat recovery system receives heat input from both an exhaust gas recovery system and exhaust gas streams. The system includes a first loop and a second loop. The first loop is configured to receive heat from both the exhaust gas recovery system and the exhaust system as necessary. The second loop receives heat from the first loop and the exhaust gas recovery system. The second loop converts the heat energy into electrical energy through the use of a turbine. | 06-06-2013 |
20130139489 | METHOD AND ALGORITHM FOR DIAGNOSING AN NH3 SENSOR IN AN SCR SYSTEM USING MEASUREMENTS FROM TWO CHANNELS OF THE SENSOR - A system includes an internal combustion engine providing exhaust gases to an exhaust conduit, an aftertreatment system having an SCR catalyst component and disposed in the exhaust conduit. The system further includes a first NH | 06-06-2013 |
20130131955 | SYSTEMS AND METHODS FOR CORRECTING MASS AIRFLOW SENSOR DRIFT - Systems and methods for correcting mass airflow sensor drift include an operation conditions module to interpret a base calibration function, a MAF sensor input value, and a current operating condition. A MAF correction module determines an expected MAF value in response to the current operating condition and a predetermined operating condition. The MAF correction module will also determine an adjusted MAF value in response to the expected MAF value, the base calibration function, and the MAF sensor input value. A MAF reporting module is structured to provide the adjusted MAF value. | 05-23-2013 |
20130124068 | APPARENT PLUMBING VOLUME OF AIR INTAKE AND FRESH AIRFLOW VALUE DETERMINATION - An apparatus for fresh airflow determination includes an operating conditions module that interprets a MAF value, a current operating condition and a charge flow value. The apparatus further includes a volume estimation module that determines an apparent plumbing volume of an air intake assembly in response to the MAF value, the current operating condition and the charge flow value. The apparatus further includes a volume reporting module that provides the apparent plumbing volume. | 05-16-2013 |
20130119166 | FUEL INJECTOR WITH INJECTION CONTROL VALVE SPRING PRELOAD ADJUSTMENT DEVICE - A fuel injector including an injection control device valve spring preload adjustment device is disclosed. The fuel injector includes a transverse access passage extending at an acute angle to a longitudinal axis of the fuel injector. The preload adjustment device includes at least one transverse slot that creates a cantilevered thread portion. The cantilevered thread portion is deformed at a deformation angle to a plane perpendicular to the longitudinal axis to form a locking feature. | 05-16-2013 |
20130119162 | FUEL INJECTOR WITH INJECTION CONTROL VALVE CARTRIDGE - A fuel injector that includes an injector control valve assembly. The injector control valve assembly includes a contact spring positioned between a fuel injector upper body and the injector control valve assembly to isolate a stator housing from clamping forces that occur during fuel injector assembly and clamping in an internal combustion engine. The injector control valve assembly further includes a cartridge configuration that permits preassembly of the injector control valve assembly prior to mounting in the fuel injector. | 05-16-2013 |
20130118451 | FUEL INJECTOR WITH INJECTION CONTROL VALVE ASSEMBLY - A fuel injector control valve is provided that includes a drain circuit for directing the flow of fuel away from temperature sensitive components of a fuel injector in which the fuel injector control valve is positioned. The drain circuit includes at least one portion that directs drain fuel axially inward or toward a fuel injector orifice, and away from an actuator of the fuel injector. | 05-16-2013 |
20130111898 | SYSTEM, METHOD, AND APPARATUS FOR THERMAL MANAGEMENT WITH CHARGE AIR COOLER BYPASS - A system includes an internal combustion engine, an EGR flow path having an EGR cooler path and an EGR cooler bypass path, a turbocharger, a compressed intake flow path, an EGR bypass valve that selectively divides the EGR flow between the EGR cooler path and the EGR cooler bypass path, a charge air cooler bypass valve that reduces an amount of cooling of compressed intake air out of the compression side of the turbocharger, and an aftertreatment component that receives the exhaust stream from the turbine side of the turbocharger. The aftertreatment component requires at least intermittent exhaust stream temperature elevation. The system includes a controller that determines that an exhaust stream temperature elevation request is present, and provides a charge air cooler bypass valve command and an EGR bypass valve command in response to the exhaust stream temperature elevation request. | 05-09-2013 |
20130108528 | DIFFERENTIAL NH3 AND NOX MEASUREMENT USING AN EXHAUST GAS SENSOR COUPLED WITH A MICRO SCR CATALYST | 05-02-2013 |
20130104853 | FLOW LIMITER ASSEMBLY FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE | 05-02-2013 |
20130104530 | SCR CONTROL SYSTEM UTILIZING A DIFFERENTIAL NH3 AND NOX MEASUREMENT USING AN EXHAUST GAS SENSOR COUPLED WITH A MICRO SCR CATALYST | 05-02-2013 |
20120285292 | VEHICLE AND HYBRID DRIVE SYSTEM - One embodiment of the present invention is a unique vehicle having a hybrid drive system. Other embodiments include unique hybrid drive systems. Still other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fluid driven actuation systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith. | 11-15-2012 |
20120270725 | SYSTEM, METHOD, AND APPARATUS FOR TREATING A PLATINUM CONTAMINATED CATALYTIC COMPONENT - An example method includes determining that a selective catalytic reduction (SCR) component having a zeolite-based catalyst is contaminated with platinum (Pt). The method further includes elevating the temperature of the SCR component to at least 600° C. in response to the determining the catalytic component is contaminated with Pt, and maintaining the elevated temperature of the catalytic component for a predetermined time period thereby restoring reduction activity of the catalyst. | 10-25-2012 |
20120260630 | COMBINED ENGINE OUT NOX MANAGEMENT - An apparatus for controlling engine operations to a low NOx output amount at low selective catalytic reduction (SCR) temperature values and alternatively for controlling engine operations in an EGR cooler bypass regime at low engine load levels is described. The apparatus includes a controller that interprets a present speed and a present load of an engine, that determines an engine operating region in response to the present speed and the present load, and that provides an EGR cooler bypass command that provides EGR cooler bypass flow in response to the engine operating region being a first, low load, region. The controller operates the engine with supplemental NO | 10-18-2012 |
20120245822 | EMISSIONS REDUCTIONS THROUGH MULTIPLE FUEL INJECTION EVENTS - A method is disclosed including operations to interpret an engine load level for a reciprocating piston internal combustion engine. In response to determining the engine load level is less than 40% of a maximum engine load level, the method further includes operations to performing a first fuel injection event including less than 25% of a combustion fuel amount, the first fuel injection event occurring before 10 degrees after top dead center (TDC), to perform a second fuel injection event including between 15% and 65% of the combustion fuel amount, the second fuel injection event occurring after 10 degrees after TDC, and to perform third fuel injection event comprising between 10% and 85% of the combustion fuel amount, the third fuel injection event occurring before 63 degrees after TDC. | 09-27-2012 |
20120209482 | Methods and Systems for Selecting or Maintaining an Efficient Gear or Gear Ratio - A method in a system having a transmission and a drive system component is disclosed. The transmission includes two or more gears defining one or more gear ratios and a gear-selection controller having shifting schedules and the drive system component includes a drive system component controller. The method comprises dynamically generating adjustment information having information selected from the group consisting of (i) a desired gear selection; (ii) a desired drive system component speed operating point (iii) engine fuel economy improvement information related to a selection of a desired gear of the two or more gears; (iv) a drive system component energy efficiency map, and (v) a combination thereof, and wherein the generated information relates to one or more given drive system component power levels and adjusting the shifting schedules using the adjustment information. | 08-16-2012 |
20100224450 | REVERSIBLE OIL PAN WITH INTEGRATED OIL SUCTION TUBE - A reversible oil pan assembly including an oil suction tube. In one aspect, an oil pan assembly includes an oil pan and a suction tube connected to the oil pan. The suction tube includes an inlet to draw oil from the oil pan, and a plurality of outlets, each outlet configured to output oil that has been moved through the suction tube from the inlet. | 09-09-2010 |
20100180590 | BYPASS VALVE ACTUATION - A system and method for controlling air flow in an engine system. In one embodiment, the system includes an engine, a turbocharger coupled to the engine, and a compressor bypass valve coupled to the turbocharger and to the engine. The compressor bypass valve includes a mechanism that allows the compressor bypass valve to be closed by default and allows the compressor bypass valve to be actuated passively when acted upon by a boost pressure when the boost pressure increases above a predefined pressure threshold. According to the system and method disclosed herein, the compressor bypass valve is passive, and thus controls air flow to the engine without requiring active control circuitry or logic. | 07-22-2010 |
20100154412 | APPARATUS AND METHOD FOR PROVIDING THERMAL MANAGEMENT OF A SYSTEM - An embodiment is an apparatus for providing thermal management of a diesel aftertreatment device. The apparatus includes an intake throttle, at least one exhaust gas recirculation (EGR) valve coupled to the intake throttle, a turbine bypass valve coupled to the at least one EGR valve and a control mechanism coupled to the intake throttle, the at least one EGR valve and the turbine bypass valve for selectively actuating at least one of the valves based on an engine operation profile. | 06-24-2010 |
20100147272 | EXHAUST GAS RECIRCULATION COOLER COOLANT PLUMBING CONFIGURATION - A cooling system for an engine is disclosed. In a first embodiment, the cooling system may comprise a heat exchanger, a pump coupled to the heat exchanger, an EGR cooler coupled to the pump, and a first valve coupled to the EGR cooler and the heat exchanger. When the first valve is in a first position, the first valve directs a coolant to the heat exchanger and when the first valve is in a second position, the heat exchanger is bypassed and coolant flows directly to the pump. It is an advantage for a cooling system to utilize a valve to maximize the rate a coolant flows throughout the system when the valve is in an open position and also to warm up an engine when the valve is in a closed position. | 06-17-2010 |
20100147254 | COOLING OIL IN AN ENGINE SYSTEM - A system and method for cooling oil in an engine system. In one embodiment, the system includes an oil sump and an oil cooler that is integrated into the oil sump. The oil cooler receives cooling fluid and ejects the cooling fluid, and the cooling fluid cools oil in the oil sump as the cooling fluid passes through the oil cooler. According to the system and method disclosed herein, the overall size of the engine system and the number of external pressurized oil lines are reduced. | 06-17-2010 |
20100107808 | Method for increasing torsional fatigue strength in crankshafts - A method for processing a cast iron crankshaft to improve the torsional fatigue strength of the crankshaft includes forming oil holes into a portion of the crankshaft, treating the portion of the crankshaft to harden an annular area of the portion, and roller burnishing a length of the interior of the oil holes to an increased diameter. The roller burnished length of the oil holes extending from a surface of the crankshaft to at least beyond the hardened annular area. | 05-06-2010 |
20100095910 | NYLON BODY LOCATED PISTON COOLING NOZZLE - A piston cooling nozzle including a nylon body having a hub and a pair of integral legs extending from the hub and a tube for delivering coolant to a piston. The pair of legs are formed relative to the hub and the tube to ensure that when the body is mounted to an engine block, the legs engage a cylinder liner to thereby position the tube between a skirt of the piston and a connecting rod coupled to the piston. | 04-22-2010 |
20100083644 | APPARATUS AND METHOD FOR MOUNTING A CLOSE-COUPLED CATALYST - Mounting close-coupled catalysts for internal combustion engines. In one aspect, supporting a catalyst in an internal combustion engine includes a mounting bracket coupled to a base surface of an engine block. One or more support rods are coupled between the mounting bracket and a housing of the catalyst, such that the catalyst is coupled to and supported by the base surface of the engine block. | 04-08-2010 |
20100043760 | FUEL PUMP - A fuel pump is disclosed wherein a substantially cylindrical plunger bore is provided with an annular drain groove fluidically coupled to a drain duct. A pump plunger is driven by a drive system located in a separate mechanical compartment that holds a reservoir of lubricating oil. An annular seal is provided adjacent the drain groove substantially at the end of the bore and retained in position by a seal support. Exemplary embodiments provide the drain groove and seal as being positioned immediately adjacent one another so that the seal forms a lower wall of the drain groove. | 02-25-2010 |
20090287392 | METHOD AND SYSTEM FOR CLOSED LOOP LAMBDA CONTROL OF A GASEOUS FUELED INTERNAL COMBUSTION ENGINE - A method and system in accordance with the present invention provides for improved lambda control utility that includes the following: the introduction of an inner control loop to the lambda control based on the pressure of the gaseous fuel downstream of the fuel control valve and upstream of the carburetor relative to the pressure of the air at the inlet of the carburetor, and the introduction of operating point based dynamic parameter scheduling in the lambda feedback control loop. The combination of these enhancements, working together, will allow an engine system to consistently meet the mandated performance requirements via tighter lambda control in the presence of set point changes and load disturbances. | 11-19-2009 |
20090241897 | LOW COST VARIABLE SWIRL - Variable swirl for internal combustion engines. In one aspect, an apparatus includes a first intake valve controlling air flow from a first intake port to a piston cylinder of the internal combustion engine, where the first intake valve has a first lift profile. A second intake valve controls air flow from a second intake port to the piston cylinder, where the second intake valve has a second lift profile different than the first lift profile. The combination of first and second lift profiles causes a variable swirl of air in the cylinder as a function of engine speed. | 10-01-2009 |
20090241683 | MASS AIR FLOW SENSOR ADAPTOR - Mass air flow sensing for internal combustion engines. In one aspect, a sensor adaptor for use in an internal combustion engine includes an inlet housing including an approximately 90-degree elbow and directing air within the inlet housing to the internal combustion engine in an airflow direction. A mass air flow sensor is coupled to the housing at a location after the 90-degree elbow with respect to the airflow direction and senses the air flowing within the inlet housing. | 10-01-2009 |
20090241543 | RANKINE CYCLE LOAD LIMITING THROUGH USE OF A RECUPERATOR BYPASS - A system for converting heat from an engine into work includes a boiler coupled to a heat source for transferring heat to a working fluid, a turbine that transforms the heat into work, a condenser that transforms the working fluid into liquid, a recuperator with one flow path that routes working fluid from the turbine to the condenser, and another flow path that routes liquid working fluid from the condenser to the boiler, the recuperator being configured to transfer heat to the liquid working fluid, and a bypass valve in parallel with the second flow path. The bypass valve is movable between a closed position, permitting flow through the second flow path and an opened position, under high engine load conditions, bypassing the second flow path. | 10-01-2009 |
20090169400 | FAN HUB INTEGRATED VACUUM PUMP SYSTEM - An integrated fan and pump drive system. | 07-02-2009 |
20090125184 | CIRCUIT BOARD WITH INTEGRATED CONNECTOR - Removable circuits and related mounting hardware for removably connecting circuits to a vehicle's control system. Circuits and connectors form an addressable assembly which may be enclosed in a flowable material. | 05-14-2009 |
20090112445 | System and Method for Estimating NOx Produced by an Internal Combustion Engine - A system and method are provided for estimating NOx produced by an internal combustion engine. The flow rate of fuel supplied to the engine and a plurality of engine operating parameters are monitored. NOx produced by the engine is estimated based on a product of the flow rate of fuel and a function of the plurality of engine operating parameters. The NOx estimate is stored in memory. | 04-30-2009 |
20090107130 | Diffuser Plate for Improved Mixing of EGR Gas - An apparatus configured for the mixing of two fluids traveling in substantially perpendicular directions. The apparatus includes a cylindrical member including a longitudinal conduit. The member also includes at least one diffusing plate. The diffusing plate includes a surface with a larger area and a surface with a smaller area. The larger area surface includes a plurality of apertures. The bore directs one of the fluids onto the larger area of the diffusing plate and through the apertures. The smaller surface of the diffusing plate is orientated in the direction of travel of the second fluid. | 04-30-2009 |
20090084355 | System and method for metering fuel in a high pressure pump system - A system and method for metering fuel is provided which includes a fuel supply line and a metering valve in fluid connection with the fuel supply line to control a flow of fuel through the fuel supply line. The valve is movable into a closed position to block a primary flow of fuel and create a leakage fuel flow in the fuel supply line downstream of the metering valve. The system also includes a venturi apparatus fluidly coupled to the fuel supply line upstream of the metering valve. The venturi apparatus is further coupled to the fuel supply line downstream of the metering valve to direct the leakage fuel flow out of the fuel supply line. | 04-02-2009 |
20090056312 | APPARATUS, SYSTEM, AND METHOD FOR ESTIMATING PARTICULATE PRODUCTION - An apparatus, system, and method are disclosed for estimating particulate production from a diesel engine. Engine conditions such as fuel rate, exhaust gas recirculation, and fuel injection timing are determined. Based on empirical evidence or theoretical calculations, or both, particulate production markers, each indicating a level of particulate production, are assigned to each engine condition. The markers are combined and the combined marker is used to interpolate between a minimum and a maximum level of particulate production from the engine to estimate a particulate production rate. The production rate may be combined with an oxidation rate to determine a particulate accumulation rate, which may in turn be combined with a particulate load estimate to produce a combined particulate load estimate. The combined estimate may be used to determine whether to initiate regeneration of a diesel particulate filter. | 03-05-2009 |
20090018719 | Interface and monitoring system and method for a vehicle idling control - An idle control system for a vehicle is provided. | 01-15-2009 |
20090018707 | Adaptive system and method for controlling vehicle idling - An idle control system for a vehicle is provided. | 01-15-2009 |
20090018702 | System and method for controlling vehicle idling based on engine emmissions - An idle control system for a vehicle is provided. | 01-15-2009 |
20090017986 | Totally integrated temperature sensor - An idle control system for a vehicle is provided. | 01-15-2009 |
20090017643 | Battery connection and monitoring - An idle control system for a vehicle is provided. | 01-15-2009 |
20090016042 | Idle control system and method of mounting - An idle control system for a vehicle is provided. | 01-15-2009 |
20090015203 | System and method for controlling vehicle idling and maintaining vehicle electrical system integrity - A battery charge maintenance system for a vehicle is provided. | 01-15-2009 |
20080306664 | Continuous Variable Transmission System - A method and system for controlling a continuously variable transmission (CVT). In one embodiment, the method includes receiving vehicle operation data. The method also includes controlling engine and transmission operations based on the vehicle operation data, fuel efficiency data, and CVT efficiency data. | 12-11-2008 |
20080271713 | FUEL INJECTOR ASSEMBLY WITH INJECTOR SEAL RETENTION - A fuel injector assembly with injector seal retention includes a fuel injector body including an injector nozzle housing disposed at a distal end of the fuel injector body. The injector body is adapted with a grooved portion to securely capture an injector seal to prevent the loss of the injector seal during installation and/or removal of the fuel injector assembly into an engine cylinder head. | 11-06-2008 |
20080236262 | MISFIRE DETECTION IN ENGINES FOR ON-BOARD-DIAGNOSTICS - Detection of cylinder misfires in engines. In one aspect of the invention, a method for detecting a cylinder misfire in an engine includes monitoring a temperature in the exhaust of the engine. Vibration of the engine is analyzed to identify a misfiring cylinder in the engine if the monitored temperature indicates a misfire may have occurred. | 10-02-2008 |
20080224417 | LOW LEAKAGE PLUNGER ASSEMBLY FOR A HIGH PRESSURE FLUID SYSTEM - A fluid control device for use in a high pressure fluid system, the device including a device body with a cavity and a high pressure circuit, a plunger positioned for reciprocal movement in the cavity, and a leakage reduction cap mounted to the plunger for reducing fluid leakage flow. In one implementation, the leakage reduction cap includes a flexible portion positioned between the device body and the plunger, and defining an annular clearance gap between the leakage reduction cap and the device body. The flexible portion of the leakage reduction cap resiliently flexes radially outwardly in response to fluid pressure forces to reduce the annular clearance gap so as to minimize fluid leakage flow through the annular clearance gap. | 09-18-2008 |