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WO/2022/146605A1 |
A system and method for the use of machine learning for detecting faults for cylinder intake and/or exhaust valves that do not properly open or close as commanded and for generating a flag for such faults.
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WO/2022/130045A1 |
In an internal combustion engine provided with an electro-hydraulic system for variable actuation of the intake valves of the engine, each cylinder has two intake valves (VT, VS), associated with two intake conduits. A first intake condu...
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WO/2022/124958A1 |
The disclosure concerns a method and a control arrangement (38) for controlling valve actuation of an ICE (4) comprising an exhaust valve (20), an intake valve (22), and a turbo compressor (50). The method comprises and the control arran...
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WO/2022/125179A1 |
A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe...
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WO/2022/113511A1 |
Provided is a valve control device that controls driving to open/close a first intake valve and a second intake valve and that is provided to an intake port which is in communication with the inside of a cylinder of an internal combustio...
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WO/2022/106188A1 |
The invention relates to a method for operating an internal combustion engine (1) in a powered operation, in which the internal combustion engine (1) has an intake valve device (10) and a sudden load variation is carried out in which a t...
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WO/2022/104305A1 |
A valve train assembly is provided for modifying a lift of at least one intake valve and/or exhaust valve. The valve train assembly includes at least one tappet that is housed in a rocker housing with at least one rocker lever. The at le...
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WO/2022/093400A1 |
Engine controllers and control schemes are provided for managing engine state transitions requiring increased compressor pressure ratios in turbocharged engines operating in a cylinder output level modulation mode (e.g., skip fire, multi...
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WO/2022/089903A1 |
The invention relates to a method for operating an internal combustion engine, in which the internal combustion engine is first operated in a first operating state, and a second operating state, different from the first operating state, ...
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WO/2022/089866A1 |
The invention relates to a method for automatically identifying knocking in an internal combustion engine having a plurality of cylinders, variable inlet valve stroke and a knocking sensor. The invention further relates to a correspondin...
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WO/2022/086693A1 |
A variety of methods and arrangements for reducing noise, vibration and harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing sequence is used to operate the engine in a skip fire manner. A smoothing...
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WO/2022/084596A1 |
The present invention relates to a method for determining a final setpoint (Cf) of a characteristic variable for opening a turbocharger turbine fitted to an internal combustion engine during a transient phase of increasing engine torque,...
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WO/2022/075654A1 |
The present invention relates to a device capable of changing an opening time of a valve used in an internal combustion engine into a continuous value. A continuous variable valve duration device according to the present invention rotate...
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WO/2022/075091A1 |
An exhaust valve phase changing unit provided in this variable valve control device outputs an instruction for changing the phase of an exhaust valve through an exhaust valve phase variable mechanism on the basis of a state change of an ...
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WO/2022/075652A1 |
The present invention relates to a device capable of changing, in a continuous value, the opening degree of a valve to be used in an internal combustion engine. Disclosed is a method by which the continuous variable valve lift device acc...
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WO/2022/075651A1 |
The present invention relates to a device capable of changing, into a continuous value, the timing of a valve used for an internal combustion engine. A continuous variable valve timing device according to the present invention includes a...
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WO/2022/075001A1 |
Provided is a control device for an electric variable valve timing mechanism capable of reducing the influence of a rotation variation of an engine on VTC detection angle calculation.　The control device for the variable valve timing me...
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WO/2022/069016A1 |
Invention relates to a method of operating a four stoke internal combustion piston engine (100) comprising a) forming a charge into a combustion chamber (28) of a cylinder (10) of the engine (100) comprising steps of: removing exhaust ga...
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WO/2022/071023A1 |
This valve open/close period control device comprises a drive-side rotational solid, a driven-side rotational solid, an electric motor that controls a relative rotation phase, a phase sensor, and a phase control part. This valve open/clo...
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WO/2022/069251A1 |
The invention relates to a method for determining the mass of aspirated gas in a cylinder, taking into account the real conditions of use, in order to control the masses of air and gas burnt in a cylinder, by implementing a correction me...
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WO/2022/069998A1 |
A switchable rocker arm to control the lift of a valve bridge or of a single valve of a valve train group of an internal combustion engine; the switchable rocker arm being able to rotate around a first axis A1 and comprising: a cam body,...
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WO/2022/050841A1 |
Method for testing a decompression engine brake, DEB, system (10) of a combustion engine (8), wherein the DEB system (10) comprises DEB actuators (5) to adjust opening characteristics of exhaust valves (4) of the combustion engine (8), w...
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WO/2022/049869A1 |
The present invention addresses the problem of achieving a controller device that is for a variable valve timing apparatus and that is capable of phase-controlling, at a given fixed valve timing between immediately before stoppage of an ...
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WO/2022/046299A1 |
A variety of methods and arrangements are described for managing recharging of cylinders of an internal combustion engine during skip fire operation of the engine. In one method, a maximum allowed deactivation time for a cylinder is dete...
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WO/2022/034430A1 |
Split-cycle internal combustion engine comprising at least one compressor cylinder (H) associated with a relating piston and a relating head, at least one combustion cylinder (E) associated with a relating piston and a relating head, equ...
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WO/2022/030654A2 |
A control device comprises: an acquisition unit 221 for acquiring the temperature of cooling water for an engine; an identification unit 222 for identifying an accumulated fuel injection quantity after the engine starts; a determination ...
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WO/2022/015400A1 |
A system and method for controlling an internal combustion engine involving (1) cylinder trapping strategies where one of several pneumatic spring types are dynamically selected for cylinders based at least partially on a predicted numbe...
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WO/2022/011119A1 |
An engine unit controller (EUC) in connection with a hybrid opposed piston engine can receive real-time movement data of a crankshaft via a crank position sensor. It can simultaneously receive current data of an electric motor that parti...
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WO/2022/009532A1 |
The objective of the present invention is to suppress vibrations during startup of an internal combustion engine, and to suppress misfire. The crank angle at which an intake valve starts to open is defined as a valve-opening start angle,...
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WO/2022/008152A1 |
The invention relates to a system for reducing engine torque during a gear change in a motor vehicle that has an internal combustion engine, a transmission system and an electronic engine control unit, wherein the internal combustion eng...
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WO/2022/011275A1 |
Embodiments described herein relate to systems and methods of cylinder deactivation in compression-ignition engines. An engine described herein can include N cylinders, with N being an integer of at least 2, with each cylinder including ...
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WO/2022/004135A1 |
This internal combustion engine stopping control device is configured in such a way as to stop an engine in a state appropriate for startup, and to prevent a change in crank angle after stopping. A four-cycle internal combustion engine p...
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WO/2021/261218A1 |
This combustion system (70) is applied to an engine (80). The combustion system (70) has an injection device (40) that injects fuel (F) into a combustion chamber (38), a spark plug (50) that ignites the fuel (F) in the combustion chamber...
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WO/2021/262065A1 |
The disclosure concerns a method for vibration reduction in a compression ignition four- stroke internal combustion engine. The internal combustion engine comprises exhaust and intake valves controlled by exhaust and intake camshafts (10...
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WO/2021/262277A1 |
A skip fire engine controller is disclosed that commands an early direct-injection of fuel during a skipped working cycle in which a cylinder is not exhausted. With early direct injection, the fuel has more time to vaporize and mix with ...
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WO/2021/239045A1 |
Disclosed is an air relative charge control method, which is applied to a vehicle with a variable compression ratio engine. The method comprises: determining a preset center value of a closing angle of an air intake valve according to an...
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WO/2021/240892A1 |
Provided is a control device capable of calculating a cam phase equal to an actual cam angle even when a cam angle signal exceeds a corresponding detection range due to change of a cam phase through a variable valve mechanism. This contr...
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WO/2021/236246A1 |
A system and method for a variable displacement internal combustion engine using different types of pneumatic cylinder springs on skipped working cycles to control engine and aftertreatment system temperatures are described. The system a...
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WO/2021/236321A1 |
An apparatus, method, and/or system is provided for conducting an engine shutdown in a circumstance of a runaway engine event. In a condition where an uncontrolled fuel source is present in the ambient air, there may be a risk of a runaw...
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WO/2021/233149A1 |
The disclosure relates to a powertrain (1) and a method for engine braking of a vehicle (18). The method comprises the steps: detecting a state indicative of a desired engine braking, controlling an engine speed to a set engine speed tar...
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WO/2021/193045A1 |
Provided is a noise suppression device for suppressing noise that propagates to a cab. This noise suppression device is provided with: an acquiring unit for acquiring operation information relating to an engine brake which obtains a brak...
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WO/2021/185755A1 |
This invention relates to a valve arrangement in a combustion engine for controlling inlet and outlet of gas mixtures, comprising a valve (1) slidably arranged within a valve channel (20) of a valve housing (2) in a cylinder head (3) of ...
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WO/2021/176153A1 |
An aspect of the invention relates to a method (100) for determining closing angles of intake and exhaust valves of an internal combustion engine. The method (100) includes the following steps: - acquiring (101) a raw signal from two eng...
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WO/2021/177877A1 |
An internal combustion engine comprising: an actuator (10) for axial displacement of at least one gas exchange valve of said internal combustion engine, wherein said actuator (10) comprises: an actuator piston disc (20), a cylinder volum...
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WO/2021/169566A1 |
A compression release engine in-cylinder braking system, comprising a valve mechanism (I), an oil cylinder device (III), an oil pump device (II), and an oil supply device (IV). The oil cylinder device (III) and the oil pump device (II) o...
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WO/2021/158508A1 |
A system and method of controlling operation of an internal combustion engine are provided. The method includes performing a cylinder deactivation operation while running the engine, selecting at least one of the plurality of temperature...
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WO/2021/150359A1 |
Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes generating, by a controller, an initial life factor for the component; initiating, by the controller, a CDA mode for an...
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WO/2021/144147A1 |
An engine brake rocker arm assembly for a valvetrain and operable in an engine drive mode and an engine braking mode. The assembly is configured to selectively open one of first and second exhaust valves in the engine braking mode and in...
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WO/2021/129851A1 |
A control method for a variable valve lift mechanism of a vehicle engine. The method comprises: calculating the demanded air intake amount; in response to the demanded air intake amount being the medium demanded air intake amount, determ...
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WO/2021/122156A1 |
The invention relates to a mixture-feeding system for an internal combustion engine, having quantitative mixture control. The mixture-feeding system comprises: a supercharging system, which can be connected to the internal combustion eng...
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