|| List of recent Internal Combustion Engine-related patents
|Control device for vehicle drive device|
A control device that controls a vehicle drive device. A starting control section executes internal combustion engine starting control in which the internal combustion engine in a stationary state is started while causing the disconnecting engagement device to transition from a disengaged state to a direct engagement state.
|System and method of using rotational speed predictions for starter control|
A system and method of coupling a pinion of a starter to a crankshaft of an internal combustion engine, including: predicting a future trajectory of the drop of the rotational speed of the crankshaft based on information associated with the drop of the rotational speed of the crankshaft and determining a timing of the driving of the starter based on the future trajectory of the drop of the rotational speed of the internal combustion engine.. .
|Method for predicting a rotational speed of a crankshaft in an internal combustion engine|
Method for predicting a rotational speed (n) of a drive shaft (16) in an internal combustion engine (13), wherein a past rotational speed (n) of the drive shaft (16) is determined, characterised in that in order to determine a theoretical rotational speed (nt1, nt2) of the drive shaft (16) at a future point in time (tt1, tt2), the change in the rotational speed (n) between two past events (p01, p11; p02, p12) occurring at different times is used, one rotational speed (n01, n11; n02, n12) and one point in time (t01, t11; t02, t12) being assigned to each event, wherein one point in time (t01, t02) is an earlier point in time and the other is a later point in time (t02, t12), which therefore lies before the predicted point in time (tt1, tt2), wherein a gradient (m) is determined for a period between the two events (p01, p11; p02, p12) and is used as the basis for deducing a theoretical future rotational speed (nt1, nt2) at the future point in time (tt1, tt2), such that in order to determine the theoretical rotational speed (nt1, nt2) of the drive shaft (16) at the future point in time (tt1, tt2), the determined gradient (m) is used to determine the theoretical rotational speed (nt1, nt2) at the future point in time (tt1, tt2), on the basis of the later point in time (t02, t12), thus determining whether the theoretical rotational speed (nt1, nt2) actually occurred before the future point in time (tt1, tt2) or not until afterwards.. .
|Method for operating an internal combustion engine|
A method for operating an internal combustion engine, in which a most probable position angle is ascertained. The most probable position angle generally corresponds to a rotational position of the internal combustion engine.
|Labyrinthine radial piston-hydraulic variable waterpump actuation system|
A regulatable coolant pump of an internal combustion engine having a pump housing in which a pump shaft with an associated impeller is rotatably mounted. The impeller conveys a coolant from an inlet connection into an outlet of the coolant pump, a volume flow of the coolant pump being adjustable by a cover that externally surrounds the impeller at least in some regions and is displaceable by a pressure medium.
|Power source with rechargeable energy storage device|
The present invention is directed to a welding-type power source that includes a power source housing and an engine arranged in the power source housing to supply electrical power. An energy storage device is included that is in rechargeable association with the internal combustion engine and arranged to provide welding-type power for at least a given period..
|Compact muffler for small two-stroke internal combustion engines|
A muffler providing a compact and low-profile form factor for small two-stroke engines is described, particularly useful for aerodynamic radio controlled aircraft. The muffler comprises a tuned internal header eliminating the need for an external header to mount the inventive muffler to the exhaust port of a two-stroke engine while maintaining enhanced engine performance, obviating the need for a conventional tuned-pipe exhaust..
|Cooling device with drainage openings for a metering valve|
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).
|Internal combustion engine|
An internal combustion engine includes first and second fuel injection valves, a valve actuating device and an ecu. The ecu sets a distribution ratio of the first fuel injection valve to 100% when an accumulation amount spfi is larger than a predetermined value xpfi in a predetermined case.
|Combustion control device and control method for internal combustion engine|
In a control device 50a, an actual compression ratio calculation unit 502 calculates an actual compression ratio ε from an air supply pressure ps, a cylinder pressure before ignition pc and an air supply temperature ts. A deposit deposition estimation unit 504 determines the deposit deposition state of a combustion chamber 18 from a deviation Δε between the actual compression ratio ε and a design compression ratio ε′.
|Method for cold starting a spark-ignition internal combustion engine operating with a fuel comprising ethanol|
Controlling a first ignition point according to advance map based on the cycle following the first cycle.. .
|Piston for an internal combustion engine and method for its production|
A method for the production of a piston for an internal combustion engine, having a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element.
|Combustion chamber structure for internal combustion engine|
A combustion chamber structure for an internal combustion engine includes, in a piston top part, a concave portion formed eccentrically with respect to a cylinder center axis, and a tapered portion that connects an upper end face of the piston top part and a side face of the concave portion. The tapered portion is formed so that a tapered portion volume (volume of a space formed between the tapered portion and an upper wall surface of the combustion chamber) in a first portion of the piston top part is greater than a tapered portion volume in a second portion that is nearer than the first portion to an eccentric direction of the concave portion from the cylinder center axis..
|Method for increasing the high load (knock) limit of an internal combustion engine operated in a low temperature combustion mode|
Disclosed herein is a method for increasing the high load (knock) limit of an internal combustion engine operated in a low temperature combustion ignition mode, the method comprising operating the engine with a fuel composition comprising (a) gasoline having a research octane number (ron) greater than 85 and (b) one or more cetane improvers.. .
|Method for increasing the maximum operating speed of an internal combustion engine operated in a low temperature combustion mode|
Disclosed herein is a method for increasing the maximum operating speed of an internal combustion engine operated in a low temperature combustion ignition mode, the method comprising operating the engine with a fuel composition comprising (a) gasoline having a research octane number (ron) greater than 85 and (b) one or more cetane improvers.. .
|Internal combustion engine valve train device|
An internal combustion engine valve train device of a motor vehicle, includes at least one exhaust valve actuating unit and at least one intake valve actuating unit, and an operating mode switching unit that is provided for switching the exhaust valve actuating unit into an exhaust gas recirculation mode in order to adjust an internal exhaust gas recirculation. The operating mode switching unit is provided for also switching the intake valve actuating unit into an exhaust gas recirculation mode in order to adjust an internal exhaust gas recirculation..
|Exhaust aftertreatment system diagnostic and conditioning|
An engine diagnostic tool includes a diagnostic engine calibration module structured to include a plurality of diagnostic processes for operating an internal combustion engine system of an immobilized vehicle. One or more of the plurality of diagnostic processes are structured to be an intrusive diagnostic process for the internal combustion engine system, wherein the intrusive diagnostic process causes the internal combustion engine system to operate outside of one or more calibration parameters.
|Oil degradation determining device for internal combustion engine (as amended)|
An efi-ecu 41 estimates an amount of sludge precursor accumulated in an oil pan 4 based on temperature of an engine 1 and an injection quantity. Particularly, the efi-ecu 41 calculates an amount of fuel injected in a combustion chamber 7 of the engine 1 per certain detection period including detection time, estimates an amount of sludge precursor accumulated in the oil pan 4 based on a calculated value of the accumulation amount of sludge precursor per unit amount of fuel, which is calculated based on current temperature of the engine 1, and a calculated value of the amount of fuel injected in the detection period from previous detection time until current detection time, and judges that engine oil o is degraded when the accumulation amount of the sludge precursor becomes a certain value or above..
|Egr pulse mixer for internal combustion engine having egr loop|
A mixer, for use with an internal combustion engine, for mixing egr gas from an egr loop with fresh air from the engine's fresh air intake. The mixer has an outer shell having the general shape of a thin-shelled hollow cylinder with a side entry port.
|Internal combustion engine with deactivatable cylinder, and method for operating an internal combustion engine of said type|
A method and system is provided for a turbocharged multi-cylinder internal combustion engine comprising a two-channel turbine and at least two groups of cylinders, wherein one group of cylinders is switchable responsive to an engine load over a threshold. Exhaust lines of each group of cylinders are arranged in a targeted manner to couple with the turbine such that the switchable group is attached to one channel and the active group is attached to the other channel to reduce the difference in distances that pressure pulses travel, wherein a shut-off element is provided in the channel attached to the switchable group and may be moved to block exhaust flow through the channel when the cylinders are deactivated, thus improving the partial deactivation and turbocharging characteristics of the engine..
|Industrial vehicle and method for controlling industrial vehicle|
An industrial vehicle includes a hydraulic mechanism, an operation lever, and a pump, a hydraulic control valve unit, a lever operation detector, an internal combustion engine controller, and a valve controller that controls the hydraulic control valve unit. When the lever operation detector detects the operation of the operation lever under a situation in which a speed of the internal combustion engine is less than or equal to a predetermined speed, the valve controller operates the hydraulic control valve unit to discharge the hydraulic oil without supplying the hydraulic oil to the hydraulic mechanism and instructs the internal combustion engine controller to increase the speed of the internal combustion engine, and subsequently operates the hydraulic control valve unit to supply the hydraulic mechanism with the hydraulic oil..
|Catalyst warming-up control apparatus for vehicle|
A vehicle includes an internal combustion engine, a generator driven by a power of the internal combustion engine, and an electrically heated catalyst purifying an exhaust gas of the internal combustion engine. A catalyst warming-up control apparatus applied to the vehicle includes a catalyst warming-up control portion executing a catalyst warming-up control in which the generator is driven by the power of the internal combustion engine to generate electricity, and a generated electric power of the generator is supplied to the electrically heated catalyst to energize and heat the electrically heated catalyst, in a reduction time period where an engine speed is reduced..
|Fuel injection system for internal combustion engine|
An object of the invention is to provide a fuel injection technique suitable for a spark-ignition internal combustion engine equipped with a first fuel injection valve for injecting fuel into a cylinder, a second fuel injection valve for injecting fuel into an intake passage, and a particulate filter provided in an exhaust passage thereof. To achieve the object, the fuel injection system of an internal combustion engine according to the invention reduces an in-cylinder injection ratio, which is the ratio of the quantity of fuel injected through the first fuel injection valve to the quantity of fuel injected through the second fuel injection valve, when the quantity of particulate matter trapped in the particulate filter is larger than a threshold value, thereby reducing the quantity of particulate matter discharged from the internal combustion engine..
|Exhaust gas purification device of internal combustion engine|
The invention relates to an exhaust gas purification device of an internal combustion engine comprising a catalyst (45) having an active element and a composite oxidation which carries the active element in an exhaust passage (40), the active element transforming into the composite oxide as a solid solution when the catalyst temperature is higher than or equal to a predetermined solid solution temperature and the atmosphere of the interior of the catalyst is an oxidation atmosphere and the active element precipitating from the composite oxide when the catalyst temperature is higher than or equal to a predetermined precipitation temperature and the atmosphere of the interior of the catalyst is a reduction atmosphere. According to the invention, in case that the performance of the fuel supply stop control is inhibited when the catalyst temperature is higher than or equal to the performance inhibiting temperature, a temperature lower than a base temperature of the performance inhibiting temperature is set as the performance inhibiting temperature while the use degree of the catalyst is lower than or equal to a predetermined degree and in case that the performance of the fuel supply amount increase control is permitted when the catalyst temperature is higher than or equal to a performance permitting temperature, a temperature higher than a base temperature of the performance permitting temperature is set as the performance permitting temperature while the use degree of the catalyst is smaller than or equal to the predetermined degree..
|Control apparatus for internal combustion engine|
This control apparatus for an internal combustion engine includes: a turbo-supercharger; a port injection valve and an in-cylinder injection valve; and catalysts. The control apparatus determines whether or not blow-by of gas to an exhaust passage from an intake passage through a combustion chamber occurs, or whether or not a condition in which the blow-by of gas is likely to occur is satisfied.
|Control device of internal combustion engine and method of controlling the same|
In an internal combustion engine that is capable of performing a fuel supply cut control (fc control), a performance of the fc control is suspended, in a case where, when the performance of the fc control is requested to initiate, a deviation between a solid solution of an active element in a carrier and a target solid solution is equal to or more than a predetermined upper limit value and a catalyst temperature is equal to or more than a predetermined upper limit temperature.. .
|Low temperature catalyst light-off|
A catalyst associated with an internal combustion engine can be heated to improve emissions performance of the engine. Hydrogen can be generated within the internal combustion engine by combusting a first combustion mixture having a first air-fuel ratio including excess fuel relative to a stoichiometric air-fuel ratio, such that a reforming reaction occurs during the combusting of the first combustion mixture.
|Stop control apparatus for internal combustion engine|
A stop control apparatus for an internal combustion engine is provided with: a motor (mg1) configured to output torque to a crankshaft (205) of the internal combustion engine (200); a number-of-revolutions detecting device (110) configured to detect the number of revolutions of the internal combustion engine; a crank angle detecting device (120) configured to detect a crank angle of the crankshaft of the internal combustion engine; a motor controlling device (150) configured to control the motor to output adjusting torque which adjusts the crank angle when the internal combustion engine stops to have a desired value, when the internal combustion engine stops; a throttle valve controlling device (160) configured to control an opening degree of a throttle valve (208) to be a predetermined opening degree in an intake stroke immediately before the internal combustion engine stops; and an adjusting torque determining device (140) configured, to determine the adjusting torque on the basis of the predetermined opening degree and the crank angle when the number of revolutions of the internal combustion engine has a predetermined value. This makes it possible to preferably control the crank angle when the internal combustion engine stops..
A control device for a vehicle. A shift assist control section executes shift assist control of increasing a rotational speed of an input-side rotating member of the speed change mechanism.
A control device for a hybrid vehicle performs start control for an internal combustion engine. The start control includes (i) transition control that controls the transition of first and second engagement devices between a direct engagement state, a slip engagement state and a disengaged state, and (ii) rotational speed control that controls rotational speed of a rotary electric machine.
|Alumina material containing barium sulfate and exhaust gas purifying catalyst using same|
Disclosed are alumina materials including a barium sulfate, catalyst or adsorbent using the same, in particular, catalyst for exhaust gas purification superior in nox purification performance, suitable as a catalyst for purifying harmful substances included in exhaust gas discharged from an internal combustion engine of a gasoline vehicle, a diesel vehicle. An alumina material containing a barium sulfate in an amount of 5 to 70% by mass to alumina, wherein average particle size of barium sulfate dispersing in the alumina material is 4 μm or smaller, average particle size of alumina is 50 μm or smaller, and bet specific surface area of the alumina material is 20 to 250 m2/g; a catalyst for exhaust gas purification using the alumina material including a barium sulfate.
|Drive train having a spur gearing and a centrifugal pendulum|
A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum.
A clutch device having an actuating device for a drivetrain of a motor vehicle having an internal combustion engine, an electric machine with a stator and a rotor, and a transmission device, where the clutch device is situated in the drivetrain between the internal combustion engine on the one side and the electric machine and the transmission device on the other side, the clutch device and the actuating device being integrated into the rotor of the electric machine, in order to improve the construction and/or the function of the clutch device.. .
|Buoyant ice transport vehicle|
A collapsible, inexpensive and lightweight vehicle powered by an engine for movement over frozen bodies of water. In one embodiment, an internal combustion engine, a kayak and a drive system assembly comprising detachable studded wheels is detachably connected to a collapsible chassis.
|Internal combustion engine provided with a cooling pump that can be mechanically disconnected|
An internal combustion engine having: an engine provided with a crankshaft; a cooling system provided with a circulation pump, which comprises an impeller supported by a pump shaft that is mounted so as to rotate around a rotation axis; an auxiliary shaft, which transmits the rotation movement to the pump shaft of the circulation pump; a mechanical transmission, which transmits the rotational movement from the crankshaft to the auxiliary shaft; and a coupling device, which is interposed between the pump shaft of the circulation pump and the auxiliary shaft and is suited to mechanically connect/disconnect the pump shaft to/from the auxiliary shaft.. .
|Sound generator for an exhaust system|
A sound generator (1) for an exhaust system (2) of an internal combustion engine of a motor vehicle (3) includes a housing (4), with an electroacoustic converter (5) having a membrane (6) separating a housing rear volume (9) from a housing front volume (10). A connection pipe (11) connects the front volume (10) of the sound generator (1) to an exhaust gas-carrying exhaust gas line (12) fluidically and acoustically.