Abstract: A crankshaft lubricating oil passage structure of a V-shaped engine includes a main oil passage and a sub oil passage. The V-shaped engine includes a pair of banks. The pair of banks includes cylinders and is disposed in a V shape with respect to the crankshaft. The V bank angle as an included angle of the cylinders of the respective banks is set at a narrow angle. The main oil passage is provided between the pair of banks in the cylinder block or the crankcase. The sub oil passage extends from the main oil passage to the bearing portion of the crankshaft and guides lubricating oil to the bearing portion. The main oil passage is formed by connecting divided passage portions that are divided partway in an axial direction by an oil passage connection member that is a separate member from the cylinder block or the crankcase.

Abstract: The present invention relates to a filter device for filtration of oil, comprising a first filtration layer, a second filtration layer, and a frame element, wherein—the frame element is arranged in a sandwich-like manner between the first filtration layer and the second filtration layer, and wherein—the frame element has a multitude of passage orifices, such that a number of intermediate chambers corresponding to the multitude of passage orifices is formed between the first filtration layer and the second filtration layer, wherein the filter device is characterized in that the frame element comprises an oil-permeable filter medium, by means of which filtration of the oil passing therethrough is effected.

Abstract: A noise attenuation baffle assembly for a duct, is provided. The baffle assembly includes a number of baffles arranged in a spaced apart relation to one another. Each baffle includes a first side and a second side. The baffle assembly further includes a first bracket coupled to the first side of each baffle of the number of baffles. The baffle assembly further includes a second bracket coupled to the second side of each baffle of the number of baffles. The first and the second bracket are configured to be coupled to the duct.

Abstract: An insulator includes a first portion, a second portion, a pair of coupling portions, a first stopper surface and a second stopper surface, and a plurality of protrusions. The second portion is arranged underneath the first portion across a predetermined virtual axis. The pair of the coupling portions couple the first portion to the second portion. The pair of the coupling portions are separately arranged on both sides in an axis-perpendicular direction of the virtual axis. The first stopper surface and the second stopper surface are famed on the first portion and the second portion, respectively, between the pair of the coupling portions with intervals to the coupling portions. The plurality of the protrusions project from at least one of the first stopper surface and the second stopper surface. The plurality of the protrusions are arranged in an axial direction and the axis-perpendicular direction of the virtual axis.

Abstract: A vehicle includes an engine that combusts an air/fuel mixture to produce an exhaust gas stream containing oxides of nitrogen (NOx). A dosing system injects an amount of ammonia (NH3) into the exhaust gas stream based on an initial NH3 injection set point value. A selective catalyst reduction (SCR) device absorbs an amount of the NH3 contained in the exhaust gas stream and reduces an amount of NOx. An electronic hardware controller predicts an NH3 slip condition during which a portion the absorbed NH3 will slip from the SCR device, and modifies the initial NH3 injection set point value based on the predicted NH3 slip condition. The controller further generates a modified NH3 injection set point signal indicating an adjusted amount of the NH3 to inject during the predicted NH3 slip condition. The dosing system adjusts the amount of injected NH3 based on the modified NH3 injection set point signal.

Abstract: A method for heating an electrically heatable catalytic converter in an exhaust duct of a motor vehicle having a combustion engine. To heat the catalytic converter prior to a start of the combustion engine, the catalytic converter should already be electrically heated prior to the start of the combustion engine, and the oxygen storage capacity of the electrically heatable catalytic converter should be filled. Thus, an efficient exhaust-gas aftertreatment is made possible already at the start of the combustion engine. A further heating of the catalytic converter by a combined electrical and chemical heating takes place following an electrical preheating phase after the start of the combustion engine by the exothermic reaction of unburned fuel components on a catalytically active surface of the electrically heatable catalytic converter. Also, a motor vehicle having a combustion engine and an exhaust system in which a method according to the present invention is implemented.

Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The pressure loss of the catalyst section in the flow velocity direction of the exhaust passage is smaller than the pressure loss of the catalyst section in a direction orthogonal to the flow velocity direction, and the heat capacity of the catalyst section is larger than the heat capacity of the heater section.

Abstract: A purification method comprises providing a purification device comprising at least one exhaust gas purification member having an upstream surface through which the exhaust gas enters the purification member and a downstream surface through which the exhaust gases exit the purification member. The method further includes, in the absence of forced circulation of the exhaust gas through the purification member by an engine of the vehicle, heating radiatively at least either the upstream zone or the downstream zone, for example before starting the engine of the vehicle.

Abstract: A device includes a power source, at least one exhaust gas purification member having an upstream face and a downstream face, and a heating member placed in front of and at a distance from the upstream or downstream face. The heating member comprises a frame and a plurality of elongate heating elements surrounded by a peripheral part of the frame. Each heating element has first and second ends, with at least one of the first and second ends being electrically connected to the power source with the other end being connected to the frame. Each heating element is, between the first and second ends, connected only to at least one other of the heating elements. The heating elements are in contact with one another by respective points of contact, two points of contact of two different heating elements in contact with one another being at the same electric potential.

Abstract: A catalyst apparatus is disposed in an exhaust passage for exhaust gas discharged from an internal combustion engine and includes a catalyst section for purifying the exhaust gas, and a heater section disposed upstream of the catalyst section in the exhaust passage and adapted to heat the exhaust gas. The heater section is configured such that a plurality of metal thin plates and insulators are stacked alternatingly are wound. The heater section contains a pair comprising a positive electrode and a negative electrode for energizing and heating the metal thin plates. The positive and negative electrodes are joined to each of the metal thin plates in such a manner that the positive electrode is located away from the negative electrode in a winding direction of the metal thin plates.

Abstract: A tank device for a motor vehicle, and a motor vehicle having such a tank device. The tank device includes a motor vehicle tank, a ventilation outlet, and a filler pipe head configured to fill the motor vehicle tank. The filler pipe head includes a filler opening configured to receive a nozzle during a filling sequence, and a filling ventilation opening configured for movement between an open state during introduction of the nozzle to fluidically connect an inner space of the filler pipe head to the ventilation outlet, and a closed state during removal of the nozzle from the filler opening, the filler pipe head having an operational ventilation opening fluidically connected to the ventilation outlet, and which has a semi-permeable diaphragm to permit flow of gasses therethrough and also to prevent a flow of fluids.

Abstract: The exhaust gas purification device for a vehicle comprises an exhaust gas purification member having a plurality of longitudinal circulation channels for the circulation of the exhaust gases, with each circulation channel having a free section. The device further includes a heater, comprised of a plurality of electrically conducting resistive wires engaged longitudinally each in one or several circulation channels, and a power source of the resistive wires. The resistive wires that are engaged in a same circulation channel occupy a total section smaller than 25% of the free section of the circulation channel.

Abstract: There is provided a secondary air introduction device configured to introduce air into an exhaust port provided in a cylinder head of an engine by using a negative pressure in the exhaust port. A back-flow restriction member is provided between a reed valve and the exhaust port in an air introduction passage, and includes a plate part intersecting with an extension direction of the air introduction passage. The plate part has an air passing region in which the air flowing through the air introduction passage from an air intake unit toward the exhaust port is enabled to pass therethrough and a back-flow cutoff region in which exhaust air, which flows in a direction of directly colliding with at least a valve body of the reed valve, of exhaust air flowing back through the air introduction passage from the exhaust port is cut off.

Abstract: Methods and systems are provided for sensing particulate matter by a particulate matter (PM) sensor positioned upstream, or downstream, of a diesel particulate filter in an exhaust system. The PM sensor may include a curved sensor surface having interdigitated electrodes of differing voltages disposed thereon. An inlet may be disposed to capture a sample flow of exhaust from an exhaust flow from a diesel engine. A conduit may be formed to direct the sample flow toward the curved sensor surface in a direction that may form an acute angle with a line normal to the curved sensor surface.

Abstract: An exhaust hanger assembly for a vehicle includes a bracket, a clip, and a rod. The bracket includes a peripheral wall having a non-circular cross section. The bracket includes a first end configured to be fixed to an exhaust pipe of the vehicle and a second end including first and second receivers formed in peripheral wall. The clip is disposed around at least a portion of an outer surface of the bracket and fixed to the bracket. The clip includes opposing apertures. The rod, which is configured to be fixed to a body of the vehicle, extends through the opposing apertures of the clip and is fixed to the clip. The rod is disposed within the first and second receivers of the bracket.

Abstract: An exhaust assembly for a vehicle includes a hanger and an exhaust pipe assembly. The hanger is configured to be fixed to a body of the vehicle. The exhaust pipe assembly includes a first portion and a second portion. The first portion is at least partially disposed inside the second portion so that the second portion overlaps the first portion at a joining region. The joining region has a first outer diameter and is flanked by outer regions having a second outer diameter that is greater than the first outer diameter. An interference fit may be provided between the first portion and the second portion. The hanger is joined to an outer surface of the exhaust pipe assembly at the joining region.

Abstract: The present disclosure relates to a vehicle exhaust assembly (1) for an internal combustion engine. The vehicle exhaust assembly (1) comprises an exhaust system (3) and an exhaust mounting assembly (4) for mounting the exhaust system (3) to a vehicle (2). The exhaust system (3) comprises an inlet section (5) for connection to the internal combustion engine; an intermediate section (6) connected to the inlet section (5); an outlet section (7) for exhausting gases from the internal combustion engine; and one or more exhaust decoupler (8) for decoupling the intermediate section (6) from the inlet section (5). The exhaust mounting assembly (4) comprises one or more first isolator device (20-1, 20-2) for resiliently constraining movement of the intermediate section (6) of the exhaust system (3) in a longitudinal direction; and one or more second isolator device (20-3, 20-4) for resiliently constraining movement of the outlet section (7) of the vehicle (2) exhaust in a transverse direction.

Abstract: A cooling fan module for heat dissipation of an automobile engine is provided. The cooling fan module includes a fan assembly and a brush motor for driving the fan assembly. The brush motor includes a stator having a housing and a plurality of permanent magnets fixed onto an inner wall of the housing, and a rotor including a shaft, a rotor core including a plurality of winding slots evenly distributed on a periphery of the rotor core, and a winding wound around the rotor core. The number of the permanent magnets is four, and the number of the winding slots is twenty-two, to make the brush motor have a small noise, and a long life.

Abstract: A hydraulic system that has a hydraulic pump connected to and in communication with a hydraulic motor, at least one hydraulic cylinder, or both by a first conduit and a second conduit (i.e., a high side and a low side). The hydraulic system has a bypass valve connected to and in communication with the first conduit and the second conduit. The bypass valve has a preset pressure that is above a minimum low side pressure. When a shock load occurs in the hydraulic system and a related drop in pressure on the low side occurs, the bypass valve opens when the preset pressure is passed thereby preventing the pressure from dropping to the minimum low side pressure. The hydraulic system thereby avoids a low loop event that could cause damage to the hydraulic system without the presence of larger charge pumps or accumulators.

Abstract: This relates to a cooling circuit comprising a liquid circulation path and arranged on the path: in series, an engine (2) and a radiator (8), mounted on a first branch in parallel between the inlet and outlet of the radiator, a store-exchanger (10) containing at least one volume: enclosing elements for storing and releasing thermal energy, involving a phase change material PCM, placed in a heat exchange relationship with said liquid (9), and around which are arranged at least one first layer containing a PCM and one second layer containing a porous thermally insulating material, and valves (14, 16, 18) so positioned as to direct the circulation of the liquid arriving from the engine toward the radiator and/or the store-exchanger.

Abstract: A repair kit and associated method for repairing an automotive coolant pipe for fluid-conducting within an engine block of an engine includes at least a repair stent, sealant and instructions for performing the method. The repair stent may be a whole tube, or a hollow semi-cylinder defining a gap. The method includes draining coolant from the engine, removing the water pump from the engine without removing the timing chain cover of the engine, inserting the repair stent including a sealant through the coolant passage, wherein the coolant passage extends through the timing chain cover into the engine, re-assembling the water pump to the engine and adding coolant to the engine.

Abstract: An exhaust gas turbocharger for an internal combustion engine, includes a turbine; a bypass line fluidly arranged parallel to the turbine; and a cross section adjustment element for adjusting a flow cross section of the bypass line, wherein the cross section adjustment element being configured as a ball valve having a valve housing, two bearing shells arranged in the valve housing and a valve element. The valve element is floatingly supported in the valve housing and arranged between the two bearing shells with a tolerance in a direction which is angled with respect to a rotation axis of the valve element.

Abstract: A clearance ? between an inner peripheral surface of an attachment hole of an attachment tongue and an outer peripheral surface of a valve shaft is set to be smaller than an allowable displacement amount ? in an axial direction of a valve with respect to the attachment tongue. When a condition is satisfied in which the outer peripheral surface of the valve shaft comes into contact with a front-side periphery and a back-side periphery of the attachment hole of the attachment tongue, and in which a top surface of a valve body comes into contact with a back surface of the attachment tongue, a waste gate valve is constituted so that a metal washer becomes non-contact with a front surface of the attachment tongue.

Abstract: A variable geometry turbine comprising a turbine wheel mounted for rotation about a turbine axis within a housing. The housing defines an annular inlet surrounding the turbine wheel and defined between first and second inlet sidewalls. The turbine further comprises a cylindrical sleeve that is axially movable across the annular inlet to vary the size of a gas flow path through the inlet. The annular inlet is divided into at least two axially offset inlet passages. The inner diameter of the sleeve is greater than the inner diameter of the inlet passages.

Abstract: A cleaning system and method use an ultrasound probe, a coupling mechanism, and a controller to clean equipment of a vehicle system. The ultrasound probe enters into an engine. The ultrasound probe emits ultrasound pulses and the coupling mechanism provides an ultrasound coupling medium between the ultrasound probe and one or more components of the engine. The controller drives the ultrasound probe to deliver the ultrasound pulse through the coupling medium to a surface of the one or more components of the engine. The ultrasound probe delivers the ultrasound pulse to remove deposits from the one or more components of the engine.

Abstract: An engine cover readily movable between a closed, engine-concealing position and an open, engine-accessing position is disclosed. The cover includes a front and a back. The back of the cover is movably attached to the engine. The front of the cover includes a latch handle assembly that releasably attaches the cover to the engine. In its closed position, the engine cover not only conceals at least a portion of the engine thereby improving the aesthetic appeal of the engine compartment, but also helps to reduce engine noise, thus reducing overall vehicle NVH. The cover back may be attached anywhere on the upper area of the engine. The latch assembly includes a releasable latch handle that is pivotably attached to the engine cover. The releasable latch handle has a latch handle hook. An engine latch hook is provided on the engine to which the latch handle hook can be selectively attached.

Abstract: The present invention provides methods and system for power generation using a high efficiency combustor in combination with a CO2 circulating fluid. The methods and systems advantageously can make use of a low pressure ratio power turbine and an economizer heat exchanger in specific embodiments. Additional low grade heat from an external source can be used to provide part of an amount of heat needed for heating the recycle CO2 circulating fluid. Fuel derived CO2 can be captured and delivered at pipeline pressure. Other impurities can be captured.

Abstract: A system includes a bleed system that directs a bleed flow form a high pressure region to a low pressure region. The bleed system includes a bleed conduit that includes an inlet coupled to the high pressure region. The bleed system also includes an outlet that provides the bleed flow into the low pressure region. The bleed conduit it slideably coupled to a housing that defines the low pressure region.

Abstract: Systems and method for an electrical system on an aircraft are provided. In example embodiments, the electrical system can be for an aircraft having a turbine engine. The turbine engine having a high pressure (HP) spool and a low pressure (LP) spool. The HP spool can be configured to drive a first generator to provide a first electrical output. The LP spool can be configured to drive a second generator to provide a second electrical output. The first generator and the second generator can be coupled to an electrical power distribution bus that provides electrical power to a load. A hybrid electric propulsion system and a secondary aircraft systems bus can both be coupled to the electrical power distribution bus. The electrical system can further include a control system configured to allocate power among the first generator, the second generator, and the hybrid electric propulsion system, and the secondary aircraft systems bus.

Abstract: A flow splitter for a gas turbine engine comprising one or more boreholes formed in an exterior surface of the flow splitter. A gas turbine engine comprising a flow splitter.

Abstract: A particle removal device for a gas turbine includes a suction inlet formed in one side of a region below a first vane so as to introduce a compressed air discharged from a compressor, a combusted gas generated in a combustor flowing through the first vane, an acceleration flow path for accelerating the compressed air introduced through the suction inlet so as to separate particles from the compressed air by centrifugal force, a particle collector provided at one end of the acceleration flow path so as to collect the separated particles, and a particle discharger communicating with the particle collector so as to discharge the collected particles to an outside.

Abstract: A gaming device, during play of a particular game, receives a plurality of audio channels carrying game sounds and determines whether a first of the game sounds overwhelms a second of the game sounds. In response to the determination, the gaming device adjusts a level of one or more of the audio channels such that perceptibility of the second game sound is improved relative to perceptibility of the first game sound prior to the adjustment, wherein for the adjustment, a level of one or more of the audio channels carrying the first game sound is decreased while a level of one or more of the audio channels carrying the second game sound is maintained or increased. The audio channels include three or more audio channels and the adjustment of the level of the audio channels is performed while the three or more audio channels are combined into two stereo channels.

Abstract: A method for applying a coating to a substrate having a plurality of holes. The method comprises: applying a braze material to a substrate having a plurality of holes; heating the substrate to melt the braze material to form a melt; cooling the substrate to solidify the melt to form plugs in the respective holes; applying a coating to the substrate; and further heating the substrate to melt the plugs.

Abstract: An apparatus and method for a turbine engine having an engine core. A casing can contain a compressor section, a combustor section and a turbine section in axial flow arrangement. An air conduit can extend at least partially between the compressor section and the turbine section. A compliant interface can include a nut and a biasing device mount the air conduit to the casing.

Abstract: A protective assembly includes a gas bag and a fuel container which includes a first wall. The fuel container is positioned within an aircraft and the gas bag extends along the first wall of the fuel container. A method for assembling a protective assembly includes the step of positioning a gas bag within an aircraft such that the gas bag extends along a first wall of a fuel container.

Abstract: A seal assembly for a bearing compartment includes a coupler with a lip, seal plate, nut, and air seal land. The seal plate is disposed on and around the coupler and is in contact with the lip. The nut is disposed within the bearing compartment and adjoining the seal plate. The nut includes first, second, and third major portions and first and second intermediate portions. Each of the first, second, and third major portions is in the shape of an annular band. The second major portion is disposed axially between the first and third major portions. The third major portion includes a knife edge seal extending radially outward. The first and second intermediate portions include frustums and extend between the first and second major portions and second and third major portions, respectively. The air seal land is sealingly engaged with the third major portion of the nut.

Abstract: An intershaft seal assembly comprises an annular seal ring disposed between a pair of annular runners connected to a co-axial inner rotating shaft and a surface of a hollow outer rotating shaft. The centrifugal force resulting from rotation of the co-axial inner rotating shaft effects engagement of the annular seal ring with the surface of the hollow outer rotating shaft. The surface may be a radially-inward-facing surface of a retaining arm connected to the hollow outer rotating shaft. A lubricious coating is applied to one or more of the interfaces between the seal ring and adjacent components such as the runners and the retaining arm. The lubricious coating may maintain the coefficient of friction between the interfaces between the seal ring and adjacent components below 0.4 at the maximum rotational speed of the seal ring.

Abstract: Aspects of the disclosure are directed to a system associated with an engine having a central longitudinal axis, comprising: a first shaft axially extend along the central longitudinal axis, a second shaft coaxial with the first shaft, a first air seal that seals between the first shaft and the second shaft at a first axial location, a second air seal that seals between the first shaft and the second shaft at a second axial location, a high pressure compressor section that provides air to the first air seal and the second air seal, at least one buffer passage, and a meter connected to the buffer passage that exhausts a portion of the air.

Abstract: A gas turbine engine comprises a low speed spool and a high speed spool, with each of the spools including a turbine to drive a respective one of the spools. The high speed spool rotates at a higher speed than the low speed spool. A high speed power takeoff is driven to rotate by the high speed spool, and a low speed power takeoff is driven to rotate by the low speed spool. The high speed power takeoff drives a starter generator and a permanent magnet alternator. The low speed power takeoff drives a variable frequency generator.

Abstract: An assembly is provided for a gas turbine engine with an axial centerline. This assembly includes a gearbox, a first torque transmission apparatus and a second torque transmission apparatus. The gearbox includes a plurality of first gears and a plurality of second gears. The first gears are meshed together and respectively rotatable about parallel first gear axes. The second gears are meshed together and respectively rotatable about parallel second gear axes. Each of the first gear axes and each of the second gear axes is non-parallel with the axial centerline. The first torque transmission apparatus is configured to drive the first gears. The second torque transmission apparatus is configured to drive the second gears.

Abstract: A gas turbine engine comprises a fan drive turbine driving a shaft. The shaft engages a gear reduction. The gear reduction drives a fan rotor at a speed that is less than the speed of the fan drive turbine. The gear reduction is a non-epicyclic gear reduction.

Abstract: A method, system and program product for determining a malfunction in a gas turbine enclosure are disclosed. The method may include measuring a temperature at a plurality of locations relative to the gas turbine enclosure; determining a flow rate of a cooling gas through the gas turbine enclosure; and determining a malfunction in the gas turbine enclosure exists in response to at least one of the measured temperatures and the determined flow rate contradicting a model of gas turbine system operational parameters versus respective expected temperatures at the plurality of locations and an expected flow rate of the cooling gas through the gas turbine enclosure.

Abstract: An engine comprising: a fuel injection device including a rack and an actuator, the rack being configured to regulate the amount of fuel injected to a combustion chamber, the actuator being configured to control the position of the rack; and a control device that controls fuel injection performed by the fuel injection device based on an instructed revolution number, and that performs a dither control on the actuator, wherein the control device has information of a revolution number variation region that is based on the relationship between a dither frequency in the dither control and an engine revolution number, and upon determining that the instructed revolution number is within the revolution number variation region, changes at least one of the dither frequency and the instructed revolution number. Thus, an engine capable of reducing a periodic variation in engine speed which may be caused by a dither control is provided.

Abstract: An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.

Abstract: Methods and systems are provided for improving engine torque response during transient condition. In one example, a method may include adjusting intake throttle and exhaust waste-gate valve based on the operator torque demand and concurrently, scheduling exhaust gas recirculation (EGR) and variable cam timing (VCT) based on a predicted torque shortfall ratio. The scheduling of EGR and VCT is independent of the actual position of intake throttle and exhaust waste-gate valve.

Abstract: Systems and methods for operating an engine with deactivating and non-deactivating valves are presented. In one example, engine volumetric efficiency actuators are adjusted in response to a request to activate engine cylinders so that engine intake manifold pressure is drawn down quickly toward its normal state at the engine's present speed and torque.

Abstract: Methods and systems are provided for a particulate matter sensor. In one example, the sensor may include a concave inlet for admitting exhaust gas from an exhaust passage downstream of a particulate filter into the sensor.

Abstract: When it is determined that the igniting environment is out of the desired range, the variable valve mechanism is controlled so that the swirl ratio is increased. When the swirl ratio becomes high, the discharge spark and the initial flame move largely in the flow direction of the swirl flow SW and approach the closest fuel spray. Therefore, the discharge spark and the initial flame are attracted to the closest fuel spray and the initial flame enlarges by involving the closest fuel spray (middle stage of FIG. 7). Further, the initial flame enlarges further by involving surrounded fuel spray (lower stage of FIG. 7).

Abstract: Provided are methods for warming up a vehicle exhaust treatment system prior to an engine start, wherein the vehicle includes an internal combustion engine (ICE), a supercharger capable of delivering air to an ICE intake, an exhaust gas treatment system including an exhaust gas treatment device and an upstream electric heating device and capable of accepting exhaust gas from the ICE, and optionally a turbocharger having a turbine in fluid communication with the exhaust gas treatment system. Methods include establishing fluid communication between the supercharger and the exhaust gas treatment system, engaging the supercharger to communicate air to the exhaust gas treatment system via the supercharger, and engaging the heating device. The method can further comprise reducing turbine resistance by reducing the power position of the turbine or opening a wastegate. The methods can further include first satisfying a start condition, and/or subsequently detecting a termination condition.

Abstract: A method for heating a sliding camshaft actuator at cold engine start wherein the sliding camshaft actuator includes at least one magnetic field generating coil having a core, a piston armature disposed in the core of the magnetic field generating coil, a magnet in mechanical communication with the piston armature, and an actuator pin in mechanical communication with the magnet. The method includes detecting a cold engine start condition and reversing an energizing voltage on the magnetic field generating coil when the outside temperature is below a predetermined temperature threshold. The reverse energizing voltage on the magnetic field generating coil is maintained for a predetermined period of time to heat the piston armature, the magnet, and the actuator pin.