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WO/2021/098937A1 |
Invention relates to method of detecting a deviation in operation of a pressure sensor having a sensor specific sensitivity (s m ) for converting electric signal obtainable from the sensor into pressure, in internal combustion piston eng...
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WO/2021/068014A1 |
According to the invention, a compensation amplitude (KP_PKkomp) is determined from the maximum amplitudes (KP_PK) of a number of cycles (Ak) recorded at a first operating point, which compensation amplitude is used to compensate maximum...
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WO/2021/047966A1 |
The method for determining the mass of gas enclosed in a combustion chamber (2) according to the invention is based solely on the measurement of the pressure (MES P) inside the combustion chamber. The method implements a model of the com...
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WO/2021/047906A1 |
The invention concerns a determination of opening characteristics of a fuel injector in an internal combustion engine comprising a knocking sensor, capable of generating a signal representative of vibrations. The conventional knocking se...
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WO/2021/045119A1 |
This air flow rate measurement device comprises: a housing (30) having a base surface (41), a back surface (42), a first side surface (51), a second side surface (52), a flow rate flow channel inlet (431), a flow rate flow channel outlet...
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WO/2021/038642A1 |
An engine throttle device (1) that is provided with a throttle valve (5) which is supported by means of a throttle shaft (4) inside a throttle bore (2a, 3a) of a valve body (2, 3) and which is driven to open and close, and a throttle sen...
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WO/2021/032360A1 |
A method for operating an exhaust-gas sensor in an exhaust-gas section of an internal combustion engine of a vehicle, wherein the exhaust-gas sensor (10) has a ceramic sensor element (12) with at least one measuring electrode (16, 18) an...
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WO/2021/034259A1 |
A method (100) is disclosed of performing one or more in-cycle misfire diagnoses of the combustion of an internal combustion engine (1). The method (100) comprises obtaining (110) at least a first input value indicative of a current comb...
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WO/2021/002236A1 |
This internal combustion engine structure is provided with: a crankshaft (10) for converting a reciprocating motion of a piston (24) disposed inside a cylinder (12) of an internal combustion engine (2) mounted in a vehicle into a rotatin...
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WO/2020/249845A1 |
In the method of operating a piston engine (1) in a transient state a signal indicative of engine speed or power is monitored (101) and compared to a set point (102), based on the comparison, a first control signal is generated (103) and...
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WO/2020/222993A1 |
A gas engine is disclosed. The gas engine may include a combustion cylinder. The combustion cylinder may include an intake with an intake valve. The combustion cylinder may include an exhaust with an exhaust valve. The gas engine may inc...
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WO/2020/222726A1 |
A proximity sensor system and a method for implementing the proximity sensor system is provided, wherein the proximity sensor system includes a sensor article, wherein the sensor article includes a sensor sensing surface and wherein the ...
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WO/2020/206347A1 |
A method of controlling combustion in an internal combustion engine includes measuring parameters of combustion in a cylinder of the engine during a combustion phase of the cylinder, after igniting an air/fuel charge in the cylinder, and...
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WO/2020/182808A1 |
The invention proposes a method for generating an estimator of error in the measurement of a motor vehicle cylinder pressure sensor, the method being implemented by a computer comprising a memory, the method comprising the following step...
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WO/2020/174228A1 |
The split cycle engine of the present disclosure comprises a compression cylinder (10) accommodating a compression piston (12), a combustion cylinder (20) accommodating a combustion piston (22), a recuperator (35) arranged to exchange he...
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WO/2020/171845A1 |
A method of operating an internal combustion engine that includes injecting fuel into a combustion chamber to form an air-fuel mixture, where the combustion chamber includes a cylinder head, cylinder sidewalls, and a piston that reciproc...
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WO/2020/162810A1 |
A method (100) of controlling an internal combustion engine (1) is disclosed. The method (100) comprises determining (110) a knock level (kl) in the at least one cylinder (13) of the engine (1), setting (120) an overlap limit (Olim) base...
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WO/2020/120473A2 |
The invention relates to a method for operating a turbo compound system, in which a crankshaft is driven by a combustion engine (7), the exhaust gas stream of which drives an exhaust-gas power-recovery turbine (4) which is operatively co...
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WO/2020/114984A1 |
The invention relates to a method for anticipating the appearance of smooth combustion in a heat engine. An angular range (F) for detection is split into a plurality of intervals (I) with an identification of the interval (Iid) in which ...
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WO/2020/102010A1 |
A system and method for combustion in an engine includes a combustion chamber (204), a prechamber (202) extending from a first end (222) to a second end (220), the prechamber (202) fluidly connected to the combustion chamber (204) throug...
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WO/2020/099509A1 |
The invention relates to a method for detecting a cylinder-specific combustion process parameter value for an internal combustion engine. The method includes the following: (a) detecting a tooth encoder signal, (b) determining a cylinder...
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WO/2020/088929A1 |
A method for calibrating a knock detection system (1) for an engine (10) is described. The method comprises, for each of a plurality of cylinders (11) and each of a plurality of engine operating points: receiving (120) cylinder pressure ...
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WO/2020/085031A1 |
An air-fuel ratio sensor (20) is provided in an exhaust passage (12) of an engine (10) mounted in a vehicle and comprises a sensor element (22) for detecting the concentration of a specific component in exhaust and a heater (23) that is ...
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WO/2020/078956A1 |
A method for monitoring glow ignition in an internal combustion engine comprises: monitoring a crankshaft speed of said engine over a detection window corresponding to a crankshaft deceleration phase related to a compression stroke in a ...
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WO/2020/072523A1 |
An engine maintenance set can be generated via a computerized system using engine status data for an internal combustion engine. The generating can include operating on the engine status data using a set of computer-readable maintenance ...
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WO/2020/059360A1 |
In this pulser plate attachment structure for a crankshaft: pulser plates (60; 100) are externally fitted to and positioned concentrically with arcuate protruding-strip parts (53; 93) which are formed so as to be centered around the rota...
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WO/2020/054845A1 |
An internal combustion engine (28) is provided with: a crankcase (31) that demarcates a crank chamber; a cylinder block (32) that is joined to the crankcase (31) and guides linear reciprocating motion of a piston; a detection sensor (86)...
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WO/2020/046694A1 |
A vehicle, engine controller and method for coordinating direct split injection of two or more pulses of fuel during a working cycle of a reactivated cylinder which was deactivated in a previous working cycle is described. By using split...
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WO/2020/020944A1 |
The invention relates to a method (34) for adjusting a work tool, in particular a hand-held work tool (2). A data connection (38) is established between the work tool (2) and an external device (20), and an operating parameter (46) of th...
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WO/2020/021804A1 |
The present invention improves the detection precision of an exhaust gas sensor in a saddle-type vehicle in which a power unit that includes an internal combustion engine is secured to a vehicle body frame, the exhaust gas sensor being d...
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WO/2020/007456A1 |
Invention relates to method of increasing load in a four stoke internal combustion engine comprising operating the engine in a low load range mode comprising introducing the gaseous fuel (24) and intake air into a combustion chamber (28)...
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WO/2019/243483A1 |
The invention relates to a method for operating a piston engine, in particular an internal combustion engine, and preferably to a method for operating a piston engine with an electric machine, in particular a generator or a motor, prefer...
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WO/2019/244038A1 |
The present disclosure relates to a method and a device for evaluating the compression of the cylinders of an internal combustion engine. The method for evaluating the compression of the cylinders of an internal-combustion engine of a ve...
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WO/2019/238338A1 |
The invention relates to a method and diagnostic means for diagnosing a charge cycle behavior of an internal combustion engine (1) with a plurality of cylinders (Z1-Z4), comprising the following steps: determining a diagnosis time window...
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WO/2019/229021A1 |
Method for optimizing the interval of changing the engine oil in a diesel internal combustion engine comprising at least one cylinder pressure sensor and one control unit, in which a percentage by weight of polluting particles (TMC) in t...
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WO/2019/219384A1 |
The invention relates to a method for calculating a fresh air mass in a cylinder (2) of an internal combustion engine (1), comprising: determining (36) a heating of the fresh air (7) on a wall (2a) of the cylinder (2), the temperature of...
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WO/2019/213064A1 |
The subject matter of this specification can be embodied in, among other things, a method that includes determining a gas supplement ratio (GSR) of a mixture of natural gas and diesel, identifying a start event of a stroke of a piston of...
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WO/2019/211703A1 |
A method for monitoring an engine cylinder (100) in an internal combustion engine comprises, for each engine cycle, a detection of the ionisation current (ION), which is generated in the cylinder (100) in a predetermined time interval (d...
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WO/2019/211529A1 |
Studies show that the arrival of direct injections has drastically increased pollution levels. Using particulate filters after combustion contributes nothing to the major problem of these secondary effects to be eradicated, the density o...
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WO/2019/206397A1 |
The invention relates to a method and an assembly for modeling a laminar flame speed (f, f0). A correlation function is suggested therefor, in which correlation function the dependence of the laminar flame speed (f, f0) on pressure (P) a...
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WO/2019/203925A1 |
A method for providing fuel type recommendations for a vehicle can include steps of receiving operational data for the vehicle from one or more computing devices integrated with the vehicle, analyzing the received operational data to ide...
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WO/2019/198720A1 |
A sensor unit (20) is provided inside a casing (52) with an intake pressure sensor (94) and an outside air pressure sensor (96), and the intake pressure sensor (94) and the outside air pressure sensor (96) are disposed between a bottom w...
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WO/2019/199343A1 |
According to one or more embodiments, an internal combustion engine may be operated by a method which includes one or more of injecting a first fuel and a second fuel into an engine cylinder to form a fuel mixture, and combusting the fue...
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WO/2019/185158A1 |
A method for computer based modelling of an optimized intake and exhaust valve characteristic for an internal combustion engine. The method includes defining a first collection of valve characteristic values for an intake valve and a sec...
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WO/2019/187645A1 |
A control device for an internal combustion engine, wherein an amount of air suctioned into a cylinder of the internal combustion engine is accurately calculated. An ECU 108 for controlling an engine 100 having camshafts 121, 209 that dr...
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WO/2019/188801A1 |
An exhaust muffler (24) comprises: an exhaust pipe (31) that forms a flow path for exhaust gas and that includes communication-holes (45) that penetrate the pipe wall; a gas sensor (33) that is attached to the exhaust pipe (31) and that ...
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WO/2019/187757A1 |
An exhaust device for an internal combustion engine housed in a vehicle having catalysts (42, 72) and mufflers (50, 80) that are provided in an exhaust pipe extending from the internal combustion engine. The exhaust device comprises: ups...
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WO/2019/174740A1 |
The invention relates to a method (100) for estimating a cylinder pressure (CP) in an internal combustion engine arrangement (10), the method comprising the steps of: initiating (110) an opening of a valve by an actuator during an expans...
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WO/2019/162557A1 |
The method of operating a piston engine (1) comprises the steps of monitoring pressure in the cylinders (2) of the engine (1) (101), based on the monitoring, determining the value of a first variable (CA1, HR1) representing the developme...
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WO/2019/158211A1 |
The present invention relates to an internal combustion engine arrangement (100, 00') comprising: a combustion cylinder provided with a reciprocating piston movable between a top dead center (TDC) and a bottom dead center (BDC) within th...
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