Abstract: There is described a gasket for a valve of an internal combustion engine; this gasket has a central axis and comprises: an elastically deformable annular seal element; a support member made of plastic material, also annular and having at least a retention portion coupled coaxially on a first portion of the seal element to press it on a guide element of the valve; and elastic means acting on a second portion of the seal element to press it on a stem of the valve; the elastic means comprise a thrust portion of the support member made in one single piece with the retention portion; the seal element is formed by means of an injection molding operation in a molding chamber containing the support member.

Abstract: An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode includes: a rocker shaft defining a pressurized oil supply conduit; a rocker arm that receives the rocker shaft and rotates around the rocker shaft, the rocker arm having an oil supply passage therein; a valve bridge that engages a first exhaust valve at a first foot and a second exhaust valve at a second foot; and a capsule assembly disposed on the rocker arm having a capsule body that moves between first and second capsule positions, wherein, in the first capsule position, the capsule body is in a retracted position in the rocker arm offset from the valve bridge, wherein, in the second capsule position, the capsule body extends rigidly for cooperative engagement with the valve bridge.

Abstract: The present invention discloses an engine oil supply system, which includes an oil pan for storing lubricating oil. An oil suction pipe is disposed in the oil pan, the oil suction pipe is twisted in the oil pan, and at least two oil suction portions are disposed on the oil suction pipe, so that at least one oil suction portion is below a lubricating oil level when the engine is in any position. The technical solution disclosed by the present invention can ensure that the lubricating oil can enter each part of the engine for lubrication through the oil supply system when the engine is used either in a leant or inverted manner.

Abstract: A system includes one or more processors and a resonant sensor that contacts oil within an engine of a vehicle system. The sensor generates electrical stimuli at different times during an operational life of the engine. Each electrical stimulus has multiple different frequencies applied to the oil. The one or more processors receive electrical signals representing impedance responses of the oil to the electrical stimuli. The one or more processors determine a concentration of a polar analyte in the oil at the different times based on the impedance responses and calculate a degradation value for the engine based on the polar analyte concentration. Responsive to the degradation value exceeding a designated degradation threshold, the one or more processors at least one of schedule maintenance for the vehicle system, provide an alert to schedule maintenance for the vehicle system, or prohibit operation of the vehicle system until maintenance is performed.

Abstract: An integrated load bank and exhaust heater for a diesel genset exhaust aftertreatment system of the type having a diesel particulate filter (DPF) and a selective catalytic reduction (SCR) section. The load bank/heater can function as a load bank when testing the genset, as a heat source to optimize SCR efficiency, as to thermally regenerate the DPF filter.

Abstract: The invention relates to a device for cooling a metering module, in particular a module for metering an operating agent/auxiliary agent such as a reducing agent into the exhaust gas system of an internal combustion engine. A cooling device through which a cooling fluid flows is associated with the metering module (10). An outer surface (34) of the metering module (10) is enclosed by a cooling member (18, 20, 22) through which the cooling fluid flows. The multi-part cooling member (18, 20, 22) comprises drainage openings (30) for discharging (78) the cooling fluid/for discharging liquids in order to prevent said fluid/liquids from accumulating on the bottom of the cooling member (18, 20, 22).

Abstract: An exhaust treatment system is provided for treatment of an exhaust stream, where the system comprises a first dosage device, arranged to supply a first additive into said exhaust stream and a first reduction catalyst device, arranged downstream for reduction of nitrogen oxides in said exhaust stream through the use of said first additive, and for the generation of heat through at least one exothermal reaction with said exhaust stream. A particulate filter arranged downstream of said first reduction catalyst device to catch soot particles. A second dosage device arranged downstream of said particulate filter to supply a second additive into said exhaust stream and a second reduction catalyst device, arranged downstream of said second dosage device for reduction of nitrogen oxides in said exhaust stream through the use of at least one of said first and said second additive.

Abstract: A treatment system for providing treatment of an exhaust stream comprising nitrogen oxides NOx, in which nitrogen monoxide NO and nitrogen dioxide NO2 are comprised. When the exhaust stream passes through the treatment system, oxidation occurs of compounds comprising nitrogen, carbon and/or hydrogen. An amount of nitrogen oxides NOx reaching a reduction catalyst device downstream of the oxidizing component in the exhaust treatment system is reduced. A ratio (NO2/NOx)det between an amount of nitrogen dioxide NO2 reaching a reduction catalyst device and the amount of nitrogen oxides NOx reaching the reduction catalyst device is determined. An active control of at least one parameter related to the combustion engine is carried out, based on the determined ratio, so that the amount of nitrogen oxides NOx reaching the reduction catalyst device is increased, if the determined ratio (NO2/NOx)det exceeds an upper threshold value (NO2/NOx)threshold_high.

Abstract: An object is to prevent abrasion inside an addition valve and clogging of the addition valve due to an increase in the particle diameter of precipitates. A first control is performed by which a pump is caused to operate in such a way as to return urea solution contained in the addition valve and a urea solution channel to a tank by a predetermined quantity. After the lapse of a certain time after the end of the first control, a second control is performed by which the pump is caused to operate in such a way as to return the urea solution remaining in the addition valve and the urea solution channel thoroughly to the tank.

Abstract: An auto-calibration controller configured to automatically tune a dosing unit of an aftertreatment system. The auto-calibration controller is configured to command the dosing unit to dose reductant at a first dosing command rate at a first input pressure value based on a dosing command value of a dosing command table. The auto-calibration controller is further configured to interpret a parameter indicative of an actual amount of dosed reductant by the dosing unit and compare the actual amount of dosed reductant to an expected amount of dosed reductant. The auto-calibration controller is further configured to update the dosing command value of the dosing command table of a control module of the aftertreatment system responsive to the comparison of the actual amount of dosed reductant to the expected amount of dosed reductant.

Abstract: A nitrous oxide (N2O) removal catalyst composite is described, which includes: a N2O removal catalytic material on a carrier, wherein the catalytic material comprises a platinum group metal (PGM) component on a ceria-containing support having a single phase, cubic fluorite crystal structure. The catalytic material is effective to decompose nitrous oxide (N2O) to nitrogen (N2) and oxygen (O2) and/or to reduce N2O to N2 and water (H2O) and/or (CO2) under conditions of an exhaust stream of an internal combustion engine operating under conditions that are stoichiometric or lean with periodic rich transient excursions. Methods of making and using the same are also provided.

Abstract: An exhaust system for a motor vehicle, with an exhaust pipe for discharging exhaust of a device that produces an exhaust. A heat accumulator, which surrounds the exhaust pipe in the peripheral direction with respect to a longitudinal central axis of the exhaust pipe, is present, at least in regions thereof, and, in the radial direction between the exhaust pipe and the heat accumulator over at least a portion of the longitudinal extension the heat accumulator, a cross-section adjusting element for adjusting a passage cross section is arranged between the exhaust pipe and the heat accumulator. The cross-section adjusting element has a first holed pipe, which surrounds the exhaust pipe, and a second holed pipe, which surrounds the first holed pipe. The first holed pipe and the second holed pipe can be shifted in position relative to each other for adjusting the passage cross section.

Abstract: A thermoelectric generating apparatus may include a thermoelectric generation portion disposed on a first flow passage, and configured to convert thermal energy of exhaust gas passing through the first flow passage into electrical energy; a heat exchange portion disposed on a second flow passage, and configured to heat coolant through heat-exchange of the coolant and exhaust gas passing through the second flow passage; a third flow passage configured to pass through received exhaust gas without change; and a valve configured to selectively open or close the first flow passage, the second flow passage, or the third flow passage, and thus control a flowing route of the exhaust gas.

Abstract: An exhaust purification system includes; a catalyst provided in an exhaust passage of an engine to purify an exhaust gas; a catalyst temperature estimating unit that estimates a temperature of the catalyst based on an initial temperature of the catalyst at the time of starting of the engine and a caloric value of the catalyst which changes depending on an operating state of the internal combustion engine; and an initial catalyst temperature setting unit that sets an initial temperature of the catalyst based on a catalyst temperature stored immediately before stopping the engine, a temperature of an exhaust gas flowing into the catalyst which is stored immediately before stopping the engine, a temperature of an exhaust gas flowing into the catalyst which is acquired at the time of starting the engine, and a temperature of air taken into the engine which is acquired at the time of starting the engine.

Abstract: Methods and systems are provided sensing particulate matter by a particulate matter sensor positioned downstream of a diesel particulate filter in an exhaust system. In one example, a method may include increasing an inlet opening of the particulate matter sensor when an exhaust flow rate falls below a threshold to allow more particulates to enter the particulate matter sensor and further includes decreasing the inlet opening when the exhaust flow rate rises above the threshold to reduce the particulates entering the sensor. By adjusting the amount of particulates entering the sensor based on the exhaust rate, the rate of deposition of the sensor and hence the sensitivity of the sensor to the exhaust flow rate may be maintained at a desired level, and independent of the exhaust flow rate.

Abstract: A radio frequency system and method for monitoring an engine-out exhaust emission constituent. The system comprises a housing containing the emission constituent, one or more radio frequency sensors extending into the housing and transmitting and receiving radio frequency signals, and a control unit for controlling the radio frequency signals and monitoring changes in the emission constituent based on changes in one or more parameters of the radio frequency signals. In one embodiment, the control unit measures a rate of change in one or more of the parameters of the radio frequency signals for monitoring a rate of change of the emission constituent including for example the emission rate, accumulation rate, and/or depletion rate of the emission constituent.

Abstract: Provided are a method for determining the disposition position of a spherical joint for coupling exhaust pipes to each other in an exhaust system, and an exhaust system, which enable engine vibrations to be more effectively damped. In the present invention, strain gauges are attached at a plurality of locations in an exhaust system (1), simulated vibrations which simulate engine vibrations are imparted to the upstream-side end of the exhaust system (1), and bending strain is measured at each strain gauge. On the basis of the bending strain measured at each strain gauge, detected is a position at which generated is a bending moment that is equal to or greater than or equal to a torque amount which generates a maximum static friction force between a spherical inner-circumferential surface (26) and a spherical outer-circumferential surface (27) of a spherical joint (2) which come into contact with each other, and the detected position is determined to be the disposition position for the spherical joint (2).

Abstract: A non-negative pressure radiator cap is provided and includes a pressure valve having a pressure member, disposed inside a body while having an aperture formed therein. The pressure member is pressed based on an increase in pressure of coolant to move coolant toward a reservoir tank. Additionally, a vacuum valve that includes a head part and a neck part moves vertically based on the pressure of the coolant to open or close the aperture. The neck part passes through the aperture from bottom to top. A sealing member is disposed between the pressure valve and the vacuum valve and has an insertion aperture that is formed at a position corresponding to the aperture of the pressure valve. A retainer is further inserted into the aperture and the insertion hole and a guide directs the vacuum valve to move vertically when the vacuum valve is opened or closed.

Abstract: In a control system for an internal combustion engine, the waste gate actuator controls the opening and closing of a waste gate valve according to operation amount controlled by the control device, an actual position of the waste gate actuator detected by the position sensor for detecting the position of the waste gate actuator which correlates to the actual open position of a waste gate valve is inputted to the control device, the control device performs control for limiting the operation amount to stop to predetermined opening deviation in the direction toward open side from open side stopper position of the waste gate.

Abstract: Disclosed herein is a technique for providing an engine supercharger of a reduced size allowing an exhaust gas to be introduced smoothly into a turbine scroll. A turbine for use in this supercharger includes: a turbine lead-in route, into which the exhaust gas is introduced; a turbine scroll formed continuously with the turbine lead-in route to allow the exhaust gas to swirl around inside; a turbine wheel to turn on an axis of rotation; a turbine lead-out route; a wastegate passage to bypass the exhaust gas around the turbine scroll; and a wastegate valve. The turbine lead-in route includes a throat portion having a tapered downstream portion. The wastegate passage branches from that throat portion.

Abstract: An internal combustion engine has a cylinder configured to combust an air-fuel mixture and expel an exhaust gas and a turbocharger for generating a pressurized airflow to the cylinder. The turbocharger includes a turbine scroll defining an inlet and an outlet, an exhaust gas driven rotating assembly having a turbine wheel disposed inside the turbine scroll, and a waste-gate defining an opening. A first sensor detects turbine outlet pressure. A second sensor detects turbine inlet temperature. A controller determines an effective area of the waste-gate opening and an exhaust gas mass flow-rate. The controller also determines a turbine inlet pressure in response to the detected turbine outlet pressure and the turbine inlet temperature, and the determined waste-gate opening effective area and the exhaust gas mass flow-rate. The controller additionally regulates a supply of fuel to the cylinder corresponding to the pressurized airflow affected by the determined turbine inlet pressure.

Abstract: The disclosure relates to a supercharged internal combustion with a mixed flow turbine. In one example, a system comprises a mixed-flow turbine having a turbine shaft coupled to a compressor, a plurality of guide vanes arranged in an inlet of the mixed-flow turbine, a plurality of bevel wheels each coupled to a respective guide vane via a respective guide vane shaft, a pinion wheel with a plurality of teeth to mesh with the plurality of bevel wheels, and a pinion drive coupled to one of the bevel wheels.

Abstract: Systems, methods and apparatus for controlling operation of an engine structured to combust gaseous fuel such as a dual fuel engine, including an estimation of key parameters dependent on natural gas quality, are disclosed. The natural gas quality parameters are estimated from natural gas properties obtained from various sensed parameters associated with the engine.

Abstract: An axis line of a cylinder and a cylinder head of a four-stroke engine is disposed inclining to one side in a lateral direction with respect to a center line extending in a front-rear direction of the outboard motor from a top view, and a fuel tank is disposed on a side portion of the cylinder and the cylinder head in another side in the lateral direction with respect to the center line.

Abstract: A system for generating electrical power includes engine generators positioned on a pad and housed within an enclosure. The pad may have a first side having an associated long axis and a shorter second side having an associated short axis. The short axis is transverse to the long axis. The engine generators are electrically coupled to one another in a parallel fashion. Each engine generator includes a prime mover and an alternator that are serially aligned with the short axis of the pad. The enclosure encloses the engine generators and has a plurality of side walls, a roof, and a floor. The enclosure includes at least one intake opening formed in the floor to provide airflow into an interior of the enclosure.

Abstract: A variable compression ratio device is provided. The device includes a connecting rod connected to a piston in a cylinder and an eccentric cam interposed between a piston pin and the connecting rod. The eccentric cam moves the piston vertically to vary a compression ratio according to an eccentric cam rotation position. A hydraulic controller adjusts hydraulic fluid supplied to first and second chambers formed between the eccentric cam and the connecting rod. The first chamber rotates the eccentric cam in one direction by supplied hydraulic fluid. The second chamber rotates the eccentric cam in another direction by the supplied hydraulic fluid. A position sensor senses a piston position. A compression ratio controller calculates a target compression ratio according to an operating condition of an engine, calculates a current compression ratio based on the piston, and adjusts the eccentric cam rotation position using an oil control valve.

Abstract: A piston arrangement comprising a cylinder, a piston head movable along a piston axis within the cylinder, a con rod, and a track having a path; wherein the con rod has a first end which is coupled to the piston head and a second end which is coupled to the track; wherein the track is adapted to be moved relative to the cylinder and is shaped such that, as the track moves relative to the cylinder, the piston head moves in reciprocating motion along the piston axis in accordance with the path of the track; wherein the path of the track is shaped such that piston head displacement is non simple harmonic with respect to displacement of the track relative to the cylinder. Also an internal combustion engine including the piston arrangement.

Abstract: The present disclosure relates to a four-stroke reciprocating piston engine in a V configuration having 20 cylinders, having a counter-clockwise direction of rotation, having an ignition timing control which fires the cylinders A1 to A10 and B1 to B10 in at least one of the following firing sequences, wherein the direction of rotation and the cylinder numbering are defined in accordance with DIN ISO 1204: a) A1-B3-A4-B9-A8-B5-A2-B1-A5-B4-A10-B8-A7-B2-A3-B6-A9-B10-A6-B7 b) A1-B3-A4-B9-A8-B6-A2-B1-A5-B4-A10-B8-A7-B2-A3-B5-A9-B10-A6-B7 c) A1-B2-A5-B8-A9-B4-A3-B1-A7-B6-A10-B9-A6-B3-A2-B7-A8-B10-A4-B5 d) A1-B2-A5-B8-A9-B4-A3-B1-A7-B5-A10-B9-A6-B3-A2-B7-A8-B10-A4-B6 e) A1-B2-A6-B8-A9-B4-A3-B1-A7-B6-A10-B9-A5-B3-A2-B7-A8-B10-A4-B5 f) A1-B2-A6-B8-A9-B4-A3-B1-A7-B5-A10-B9-A5-B3-A2-B7-A8-B10-A4-B6 g) A1-B3-A4-B9-A8-B5-A2-B1-A6-B4-A10-B8-A7-B2-A3-B6-A9-B10-A5-B7 h) A1-B3-A4-B9-A8-B6-A2-B1-A6-B4-A10-B8-A7-B2-A3-B5-A9-B10-A5-B7 i) A1-B2-A4-B8-A2-B6-A8-B10-A6-B7-A10-B9-A7-B3-A9-B5-A3-B1-A5-B4 j) A1-B4-A3-B9-A7-

Abstract: A five-spindle engine system having a stable center of gravity that operates without oil lubrication, an opposed-piston four-cylinder, two-stroke combustion engine, a double-acting opposed-piston pressure-gradient drive, a multi-rotor/multi-stator/multi-phase disk generator/disk motor including windings printed on printed circuit boards, and/or a heat pump may be integrated in the system and housed in a common sealed housing.

Abstract: An engine cover assembly including a fastener concealing plug is disclosed. The plug includes a conical wall having upper and lower ends. A lower circumferential ring is spaced apart from the upper ring. The lower end of the concealing plug includes a fastener-receiving recessed area. The fastener pocket of the engine cover includes upper and lower grooves having a ring area formed therebetween. The upper circumferential ring of the plug nests with the upper groove of the pocket, the recessed area of the plug nests with the ring area, and the lower circumferential ring of the plug nests with the lower groove of the pocket. The engine cover is positioned on the engine such that a cover attaching stud passes through a stud-passing aperture of the cover. A fastening nut is threaded onto the cover-attaching stud until it comes into contact with a compression-limiting spacer. The plug conceals the fastener.

Abstract: A power generation system includes an inert gas power source, a thermal/electrical power converter and a power plant. The thermal/electrical power converter includes a compressor with an output coupled to an input of the inert gas power source. The power plant has an input coupled in series with an output of the thermal/electrical power converter. The thermal/electrical power converter and the power plant are configured to serially convert thermal power produced at an output of the inert gas power source into electricity. The thermal/electrical power converter includes an inert gas reservoir tank coupled to an input of the compressor via a reservoir tank control valve and to the output of the compressor via another reservoir tank control valve. The reservoir tank control valve and the another reservoir tank control valve are configured to regulate a temperature of the output of the thermal/electrical power converter.

Abstract: The present disclosure relates to systems and methods for power production utilizing an ion transfer membrane (ITM) unit. An air stream and a fuel stream can be passed through the ITM unit so that the fuel is at least partially oxidized or combusted to form an outlet stream comprising CO2. The CO2 stream can be compressed and expanded to generate power.

Abstract: A turboprop assembly includes a nacelle with a main nacelle body and a nacelle extension coupled to the main nacelle body. The nacelle extension has a wall that defines an air intake port. The air intake port has a non-circular, non-rectangular, and non-oval shaped perimeter extending in two of three dimensions.

Abstract: The present application provides a method of evaluating media effectiveness in a gas turbine engine. The method may include the steps of receiving a baseline media effectiveness rating, receiving a media replacement cost, receiving a number of operating parameters from a number of sensors, based at least in part on the operating parameters and the baseline media effectiveness rating, determining a media effectiveness model, based at least in part of the media effectiveness model, determining a loss in evaporative benefit cost over time, determining a time t when the loss in evaporative benefit cost exceeds the media replacement cost, and scheduling media replacement at time t.

Abstract: A thermal management system for a gas turbine engine and/or an aircraft is provided including a thermal transport bus having a heat exchange fluid flowing therethrough. The thermal management system also includes a plurality of heat source exchangers and at least one heat sink exchanger. The plurality of heat source exchangers and the at least one heat sink exchanger are in thermal communication with the heat exchange fluid in the thermal transport bus. The plurality of heat source exchangers are arranged along the thermal transport bus and configured to transfer heat from one or more accessory systems to the heat exchange fluid, and the at least one heat sink exchanger is located downstream of the plurality of heat source exchangers and configured to remove heat from the heat exchange fluid.

Abstract: According to the present disclosure, a gas turbine assembly includes a gas turbine engine and a gearbox. The gearbox includes a lubrication system including a first sump and a second sump. The lubrication system is configurable to use either of the first and second sumps to correspond to various configurations of the gas turbine assembly.

Abstract: The present application provides an inlet air system for cooling an inlet air flow to a compressor of a gas turbine engine. The inlet air system may include a wetted media pad and a drift eliminator positioned downstream of the wetted media pad with an air gap therebetween. The drift eliminator may include a fibrous media pad.

Abstract: A heat exchanger assembly includes an outer manifold defining an outer cavity. An inner cavity is defined by an inner shell supported within the outer manifold and at least partially surrounded by the outer cavity. The inner shell includes a plurality of impingement openings for directing airflow into the inner cavity. An inner manifold is supported within the inner cavity. The inner manifold is exposed to impingement airflow through the plurality of impingement openings in the inner shell. The inner manifold includes a plurality of flow passages and at least one insulator pocket substantially aligned with the plurality of flow passages. A cooled cooling air system for a gas turbine engine and a gas turbine engine assembly are also disclosed.

Abstract: A towershaft support may comprise a mount support, and a mounting ring coupled to an aft portion of the mount support radially inward of the mount support, wherein the mounting ring and the mount support create a perimeter around a central void. The mounting ring may comprise a mounting flange on an outer diameter of the mounting ring and a fluid passageway on an inner diameter of the mounting ring fixedly coupled to the mounting flange, wherein the fluid passageway comprises an outer wall enclosing an internal passage configured to pass fluid therethrough.

Abstract: A turbomachine includes a plurality of transition ducts disposed in a generally annular array. Each transition duct includes an inlet, an outlet, and a passage defining an interior and extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of each transition duct is offset from the inlet along the longitudinal axis and the tangential axis. Each transition duct further includes an upstream portion and a downstream portion. The turbomachine further includes a late injection assembly disposed between the upstream portion and the downstream portion of a transition duct and which provides fluid communication for an injection fluid to flow into the interior downstream of the inlet of the transition duct. The late injection assembly includes a late injection ring.

Abstract: A fuel system for a gas turbine engine includes, among other things, a plurality of components defining a plurality of localized nodes at distinct locations relative to a fuel flow path, each of the plurality of localized nodes characterized by a distinct set of failure parameters. One or more fuel sensors are configured to measure at least one fuel condition relating to flow through the fuel flow path. A fuel observation assembly is coupled to one or more engine sensors configured to measure at least one engine condition.

Abstract: An adapter for a gas turbine engine has a first portion with a control module mount interface. A second portion with a sensor mount interface defines a sensor mount position relative to a control module. A connecting body connects the first and second portions such that the second portion provides a re-orientated sensor mount position relative to the control module. A lubrication system for a gas turbine engine is also disclosed.

Abstract: A gas turbine engine includes a first duct, a second duct, and a bladder. The bladder is disposed in the first duct and communicates with the second duct. A first gas flow is capable of passing through the first duct and a second gas flow is capable of passing through the second duct. The bladder is adapted to receive a bleed gas flow from the second duct and inflate within the first duct, thereby decreasing an area in the first duct through which the first gas flow is capable of traveling.

Abstract: The present disclosure provides a tuning system for tuning the operation of a gas turbine. The system comprises operational turbine controls for controlling operational control elements of the turbine, including at least one of turbine fuel distribution or the fuel temperature. The system also has a tuning controller communicating with the turbine controls. The tuning controller is configured to tune the operation of the turbine in accordance with the following steps: receiving operational data about the turbine, providing a hierarchy of tuning issues, determining whether sensed operational data is within predetermined operational limits and producing one or more indicators. If the operational data is not within predetermined operational limits, the tuning controller will rank the one or more indicators to determine dominant tuning concern, and tune the operation of the turbine based on dominant tuning concern. Also provided herein are a method and computer readable medium for tuning.

Abstract: An apparatus for the actuation of a throttle valve, in particular a throttle valve arranged in an intake system of an internal combustion engine, uses a servomotor, in which apparatus at least one device for thermal decoupling is arranged between the throttle valve and servomotor. A shaft of the servomotor is coupled to a shaft of the throttle valve via a torque-transmitting coupling element with a definedly low heat transfer capability.

Abstract: A GDCI engine control system includes a heated catalyst in an engine exhaust port that is in close proximity to a combustion chamber and is used to heat rebreathed exhaust gases. The engine more quickly reaches operating temperatures, and emissions are reduced during cold running.

Abstract: A control device includes an engine valve and a variable valve actuation mechanism that is able to change at least one of a valve operating angle and valve lift of the engine valve. When the at least one of the valve operating angle and the valve lift is larger than or equal to a prescribed upper limit, the control device increases an operating speed of the variable valve actuation mechanism as compared with when the at least one of the valve operating angle and the valve lift is smaller than the prescribed upper limit.

Abstract: Provided is a dual-fuel engine control system including: a sensing unit for generating sensing information by sensing a parameter related to a dual-fuel engine; a main control unit for generating a control signal for controlling a micro-pilot injection value and a gas fuel inlet valve by analyzing a state of the dual-fuel engine on the basis of the sensing information; an EFI control unit for controlling the micro-pilot injection value and the gas fuel inlet valve on the basis of the control signal; and a deep learning unit for analyzing a state of the dual-fuel engine on the basis of the control signal transferred from the main control unit and the sensing information transferred to the main control unit at a time point of generating the control signal, and transferring an analysis result to the main control unit and the EFI control unit.

Abstract: A method for controlling a hybrid electric vehicle includes selecting a first target engine speed in response to a driver power request, calculating an available engine torque at the first target engine speed, adjusting the target engine speed if the available engine torque is insufficient to satisfy the driver power request, and commanding an engine to run at the target engine speed. The first target engine speed is optimized for fuel economy. The calculated available engine torque is less than a calculated maximum engine torque at the target engine speed, such that a torque reserve is maintained for engine vacuum.

Abstract: A controller includes a forced-induction-device controlling section, an obtaining section that is configured to repeatedly obtain a temperature of the coolant in the intake-air cooling system, a determining section that is configured to determine whether the temperature obtained by the obtaining section is higher than or equal to a forced-induction limiting control starting temperature. On condition that the temperature of the coolant has risen to a value at which the determining section determines that the temperature obtained by the obtaining section is higher than or equal to the forced-induction limiting control starting temperature, the forced-induction-device controlling section starts a forced-induction limiting control to lower a forced-induction pressure. In the forced-induction limiting control, the forced-induction-device controlling section increases an extent of limiting of the forced induction as the temperature obtained by the obtaining section becomes closer to the boiling point.