32results about "Engine operating parameters" patented technology

The inventio discloses a motor operation control method for an oil-gas separator to solve the problem that an existing oil-gas separator control strategy cannot minimize the operating speed under the precondition of satisfying operating requirements. The motor operation control method comprises: acquiring a plurality of groups of actual operating parameters output by a motor in a target operating state, establishing mapping relations according to the parameters, associating the mapping relations, and plotting a relation table; and acquiring a portion of operating parameters of the motor in a current operating state, searching for the mapping relations in the relation table to obtain other parameters, and adjusting corresponding parameter data with the obtained parameters as reference until the motor reaches the target operating state.

A closed crankcase ventilation system for removing blow-by gases, leaking from a combustion chamber, from a crankcase of an internal combustion engine. The system comprises a blow-by line extending between the crankcase and an air intake line of the internal combustion engine. When the engine is running, the air intake line provides a vacuum source for drawing blow-by gases from the crankcase through the blow-by line. A crankcase depression regulator is arranged in the blow-by line for regulating a level of vacuum inside the crankcase. At least one pressure sensor is arranged for measuring a pressure in the blow-by line relative to atmospheric pressure. A control unit is arranged for detecting leakages in the blow-by line by performing a diagnostic test based on a pressure measurement signal from a single pressure sensor.

With its simple structure, it reliably prevents or suppresses the rise in internal pressure of the oil tank. [Solution] The system includes an on / off valve 15 provided between the oil tank 3 and a gas receiving section 10 that receives blow-by gas without leaking it to the outside, and a controller 19 that controls the on / off valve 15. The controller 19 includes a low-pressure determination unit that determines that the pressure inside the oil tank 3 is lower than a predetermined first reference pressure, a determination unit that determines that a predetermined condition other than the pressure inside the oil tank being lower than the first reference pressure has been met, and an opening control unit that opens the on / off valve 15 when the low-pressure determination unit determines that the pressure inside the oil tank is lower than the first reference pressure, or when the determination unit determines that a predetermined condition has been met.

The present invention provides an engine control device that can further reduce engine noise and vibration (NV) (i.e., improve the quietness of the engine). [Solution] The ECU 50 estimates the oil film thickness for each cylinder based on the crank angular velocity, engine load, and oil temperature corresponding to the expansion stroke of each cylinder, and corrects the ignition timing of cylinders whose estimated oil film thickness is thinner than a predetermined value.

A rotating crankcase ventilation system comprises a housing comprising an inlet and an outlet, a motor comprising a stator and a rotor, and a shaft. A first end of the shaft is coupled to the rotor and configured to rotate in response to rotation of the rotor. A filter element is coupled to the shaft. A sensor is configured to measure at least one operating parameter of the rotating crankcase ventilation system. A controller is operatively coupled to the sensor and the motor, the controller configured to receive the at least one operating parameter and selectively adjust operation of the motor to adjust rotation of the rotor, and thereby, the filter element based on the at least one operating parameter.

An oil blending system for a marine diesel two-stroke engine and / or generator comprising: at least one sensor for monitoring a current lubrication oil status of a lubrication oil currently used in the engine and / or generator; a blender having at least one inlet for receiving lubrication oil and at least one other component, and at least one outlet for outputting a mixed lubrication oil composition to the engine and / or generator; and a blender controller. The blender controller is configured to receive parameter data on the current lubrication oil status from the at least one sensor for monitoring the current lubrication oil status, receive parameter data on a current status of the engine and / or generator, automatically determine whether the lubrication oil currently used in the engine and / or generator is within a predetermined parameter range based on the current status of the engine and / or generator, and if the lubrication oil currently used in the engine and / or generator is outside the predetermined parameter range, determine a new lubrication oil composition for the engine or generator.

This internal combustion engine control device is provided with: a correlation index estimation unit that estimates a piston temperature correlation index having a correlation with the temperature of a piston, on the basis of an internal combustion engine operating condition parameter and an oil jet parameter for jetting oil to a rear surface of the piston; a hydraulic pressure setting unit that sets the hydraulic pressure of an oil jet on the basis of the piston temperature correlation index and a vaporization parameter of fuel that attaches to the piston. If the piston temperature correlation index is less than a first prescribed value which is determined, as the vaporization parameter, on the basis of a temperature corresponding to a fuel vaporizable condition, then the hydraulic pressure setting unit sets the hydraulic pressure of the oil jet at a hydraulic pressure at which jetting of the oil jet can be stopped.

A control device for an internal combustion engine, comprising: a piston injector for injecting lubricating oil onto the back of a piston; and an oil pump for varying the amount of lubricating oil dispensed per revolution, i.e., the unit dispensed quantity. The control device includes a processing circuit. When the oil temperature is below a predetermined temperature, the processing circuit closes an electrically operated valve located in the lubricating oil supply path to the piston injector, thereby stopping the injection of lubricating oil from the piston injector. During the period when the oil temperature is below the predetermined temperature and the injection of lubricating oil from the piston injector is stopped, the processing circuit maintains the unit dispensed quantity of lubricating oil from the oil pump at or above a predetermined amount.

A drain plug for a component of a vehicle includes: a plug body having a stem portion configured to plug a corresponding hole in the component of the vehicle, and a sensor module. The sensor module includes a sensor and a wireless transmitter configured to transmit data regarding a reading from the at least one sensor. The sensor includes at least one of a temperature sensor, a pressure sensor, and an accelerometer. A system for wireless monitoring a component of a vehicle includes: a plug body having a stem portion configured to plug a corresponding hole in the component of the vehicle, and a sensor module having at least one sensor and a wireless transmitter configured to transmit data regarding a reading from the at least one sensor. The system also includes a receiver located on the vehicle and configured to receive the data from the wireless transmitter.

Magnetic chip detectors (28) and associated for detecting metallic chips in engine fluid of an engine (10) are provided. A magnetic chip detector (28) includes first and second magnetic chip capture zones (36A, 36B). The first magnetic chip capture zone (36A) includes a first electrically conductive terminal (38A) spaced apart from a second electrically conductive terminal (38B) to define a first chip-receiving gap (G1) therebetween. The second magnetic chip capture zone (38B) includes a third electrically conductive terminal (38C) and either the second electrically conductive terminal (38B) or a fourth electrically conductive terminal (38D) to define a second chip-receiving gap (G2) therebetween. The magnetic chip detector (28) includes an electric circuit (34) including both the first chip-receiving gap (G1) and the second chip-receiving gap (G2). The electric circuit (34) provides an output indicative of a chip detection by one or both of the first magnetic chip capture zone (38A) and the second magnetic capture zone (38B).

Provided is a dry sump engine which has a simple structure and reliably prevents or suppresses an increase in the internal pressure of an oil tank. The present invention is provided with: an on-off valve (15) that is provided between a fuel tank (3) and a gas receiving section (10) that receives blow-by gas without leaking to the outside; and a controller (19) that controls the on-off valve (15). The controller (19) has: a low-pressure determination unit that determines whether or not the pressure inside the tank (3) is lower than a preset first reference pressure; a determination unit that determines whether a predetermined condition is satisfied except that the pressure inside the tank is lower than the first reference pressure; and an opening control unit that opens the on-off valve (15) when the low-pressure determination unit determines that the pressure inside the tank is lower than the first reference pressure, or when the determination unit determines that the predetermined condition is satisfied.

The invention relates to a breather system (10) for a crankcase (102) of an internal combustion engine (100) operable with a gaseous fuel, in particular for a crankcase (102) of a hydrogen internal combustion engine, in which leakage gas containing the fuel and / or reaction products of the fuel enters the crankcase (102) during the combustion process, with a leakage gas discharge line (14) for discharging from the crankcase (102) a gas mixture (G) comprising a ventilation gas and leakage gas introduced into the crankcase (102) and one or more flow adjustment devices (16a, 16b) for adjusting the volume flow of the ventilation gas introduced into the crankcase (102) and / or the volume flow of the gas mixture (G) discharged from the crankcase (102), wherein one flow adjustment device (16a) is designed as a centrifugal separator, in particular as a disk separator, for conveying the discharged gas mixture (G) through the leakage gas discharge line (14).

The present invention discloses an improved structure of a split-type oil channel of an oil filter base and an oil cooler connecting base in a vehicle, including an oil filter base, where a lower portion of the oil filter base is provided with an oil inlet, an oil outlet, and an oil return port, an end portion of the oil filter base is provided with an antifreeze solution water inlet, a bottom portion thereof is provided with a first water outlet and a second water outlet that are communicated with the antifreeze solution water inlet, an oil cooler is mounted on an upper portion of one end, away from a filter cartridge, of the oil filter base, an oil cooler connecting base is disposed between the oil filter base and the oil cooler, a surface of one side, close to the oil cooler.

A lubricating system of an engine equipped with an idle reduction system includes an oil cooler, a remotely operable valve configured to open / close a bypass passage that bypasses the oil cooler, and an electronic control unit. The electronic control unit is configured to perform the steps of: controlling the valve so that a temperature of lubricating oil approaches a target temperature; and lowering the target temperature when an average torque of the engine is less than a predetermined threshold.

A method (200) for operating an active oil separator (104) for separating oil and mist particles from the exhaust air of an internal combustion engine's crankcase is provided. The method acquires (202) engine operating parameters, including coolant temperature, engine oil temperature, and engine speed, to determine (204) a base setpoint speed of the oil separator (104) using a first control strategy. In the event of a temperature acquisition error and a positive detection of an engine high-temperature condition, a secondary control strategy (208) is activated, which reduces the engine and oil separator speeds (104) to maintain negative crankcase pressure. An electric motor (102) drives the oil separator (104) at a preferred speed, modulating (212) the armature voltage via an H-bridge circuit (116) and applying (214) pulse-width modulation control, thereby ensuring robust and efficient operation.This approach ensures continuous, efficient operation while complying with legal regulations under various thermal engine conditions.

A system with active pressure control includes a sensor, a valve, and a controller. The sensor interfaces with and senses a pressure within a cavity of system component. The valve is disposed along a gas discharge path in fluid communication with a gas outlet port of a separator. The controller varies open area of the valve based on the pressure measured by the sensor.

The present disclosure relates to a system (100) for a vehicle drive, comprising: an acceleration determination module (110) which is configured to determine a current acceleration (ax, ay) of the vehicle; and a volumetric flow rate determination module (120) which is configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle drive on the basis of the current acceleration (ax, ay) of the vehicle, and to determine, on the basis of the acceleration-dependent intake information, a current volumetric flow rate (P*) of the at least one oil pump.

A dry sump engine having a simple structure to certainly prevent a pressure rise in an oil tank. In the dry sump engine, a solenoid valve is arranged between the oil tank and a gas receiving section. A controller comprises: a low-pressure determiner that determines whether a pressure in the oil tank is lower than a first reference pressure level; a condition determiner that determines a satisfaction of a predetermined condition; and an open controller that opens the solenoid valve when the internal pressure of the oil tank is lower than the first reference pressure level, or when the predetermined condition is satisfied.

An internal combustion engine control device includes a correlation index estimation unit configured to estimate a piston temperature correlation index correlated with a temperature of a piston based on an internal combustion engine operating condition parameter and an oil jet parameter for injecting oil to a back surface of the piston; and a hydraulic pressure setting unit configured to set a hydraulic pressure of an oil jet based on the piston temperature correlation index and an evaporation parameter of fuel attached to the piston, wherein when the piston temperature correlation index is less than a first predetermined value determined based on a temperature corresponding to a fuel evaporable condition as the evaporation parameter, the hydraulic pressure setting unit sets the hydraulic pressure of the oil jet to a hydraulic pressure at which oil jet injection can be stopped.

The invention provides a method for positive crankcase ventilation diagnosis in an engine system (1) with an engine (2), an intake duct (5) connected to the engine (1), a PCV line (10) connecting a crankcase (4) of the engine (2) with the intake duct (5) and a sensor (12) for determining an actual PCV pressure (pact) in the PCV line. In order to provide reliable, cost-effective means for detecting leakage in a positive crankcase ventilation system, the invention provides that the method comprises the steps of: - performing (115) a diagnosis measurement during a measurement period by repeatedly determining at least one input parameter (pint, ne, patm, Q), which is linked to the operation of the engine system (1), and the actual PCV pressure (pact), to obtain a plurality of data samples for a plurality of sample times (ts); - using a prediction model (M) to determine (125) a predicted PCV pressure (ppre) based on the determined at least one input parameter (pint, ne, patm, Q); and - comparing (155, 165) the actual PCV pressure (pact) with the predicted PCV pressure (ppre) to diagnose (160, 170, 175, 190) the PCV line (10), wherein a diagnosis of the PCV line (10) is based on a model error (perr), which is the difference between the predicted PCV pressure (ppre) and the actual PCV pressure (pact), wherein the model error (perr) being below a lower threshold (plt) is considered (160) to indicate that the PCV line (10) is intact, the model error (perr) being above an upper threshold (put) is considered (170) to indicate that the PCV line (10) is damaged, and the model error (perr) being between the lower threshold (plt) and the upper threshold (put) is considered (175) as an inconclusive result.

A control device controls an internal combustion engine including a piston jet that injects lubricating oil to a back surface of a piston and an oil pump that changes a unit discharge amount that is a discharge amount of the lubricating oil per revolution. The control device includes a processing circuit. The processing circuit is configured to close an electric valve provided on a supply path of the lubricating oil to the piston jet to stop injection of the lubricating oil from the piston jet when an oil temperature is lower than a predetermined temperature. The processing circuit is configured to maintain the unit discharge amount of the lubricating oil discharged from the oil pump at a predetermined amount or more while the injection of the lubricating oil from the piston jet is stopped when the oil temperature is lower than the predetermined temperature.

A controller is configured to control an internal combustion engine. The internal combustion engine includes an intake passage, a motor, a forced-induction device, a flow rate adjusting valve, a crankcase, and first and second passages connected to the crankcase. The forced-induction device uses the motor to drive a compressor wheel provided in the intake passage. The flow rate adjusting valve is provided downstream of the compressor wheel in the intake passage. The controller includes processing circuitry configured to execute scavenging control that drives the motor with the flow rate adjusting valve closed in a case where engine shutdown is performed.

A liquid separator system for removing liquid particles from a blow-by gas stream in the internal combustion engine is disclosed. The system has a liquid separating device and a remote warning / maintenance system generating a signal for an operator of the internal combustion engine. The liquid separator device has a base housing with at least one receptacle with a filter element and a pressure regulator is received within a removable cap portion. A liquid level sensor is mounted in the base housing in the receptacle. A pressure sensing system has a filter blocked valve to indicate a partially blocked filter element. When a filter is partially blocked the pressure sensing system generates a signal to the remote warning / maintenance system and when liquid in the base housing reaches a predetermined level the liquid level sensor generates a signal to the remote warning / maintenance system.

An engine control apparatus includes an oil film thickness acquirer and a processor. The oil film thickness acquirer is configured to determine a thickness of an oil film on an inner surface of each of cylinders of an engine. The processor is configured to make a correction of an ignition timing of each of the cylinders in accordance with the determined thickness of the oil film of each of the cylinders.

The present invention relates to a detection system for detecting a failure in a fluid path of a fluid system, the detection system comprising: at least one pipe (103) comprising a pipe wall (106) which defines a fluid path for the transfer of fluid and at least one electrically conductive element (105) extending along the at least one pipe (103) and which forms an electrical signal path for a first electrical signal which indicates a state of the at least one pipe (103); and, an electrical terminal (102) electrically connected to the at least one electrically conductive element (105) so that the first electrical signal is transmitted to the electrical terminal (102) via the electrical signal path.

A liquid separator system for removing liquid particles from a blow-by gas stream in the internal combustion engine is disclosed. The system has a liquid separating device and a remote warning / maintenance system generating a signal for an operator of the internal combustion engine. The liquid separator device has a base housing with at least one receptacle with a filter element and a pressure regulator is received within a removable cap portion. A liquid level sensor is mounted in the base housing in the receptacle. A pressure sensing system has a filter blocked valve to indicate a partially blocked filter element. When a filter is partially blocked the pressure sensing system generates a signal to the remote warning / maintenance system and when liquid in the base housing reaches a predetermined level the liquid level sensor generates a signal to the remote warning / maintenance system.

A closed crankcase ventilation system for removing blow-by gases, leaking from a combustion chamber, from a crankcase of an internal combustion engine. The system comprises a blow-by line extending between the crankcase and an air intake line of the internal combustion engine. When the engine is running, the air intake line provides a vacuum source for drawing blow-by gases from the crankcase through the blow-by line. A crankcase depression regulator is arranged in the blow-by line for regulating a level of vacuum inside the crankcase. At least one pressure sensor is arranged for measuring a pressure in the blow-by line relative to atmospheric pressure. A control unit is arranged for detecting leakages in the blow-by line by performing a diagnostic test based on a pressure measurement signal from a single pressure sensor.

To provide an installation structure of a hydraulic sensor which inhibits damage of the hydraulic sensor when a vehicle is overturned and enables improvement of maintainability of the hydraulic sensor.SOLUTION: An installation structure of a hydraulic sensor (85) includes: a crank case (22) formed with a main gallery (38) elongated in one direction; and a hydraulic sensor detachably installed on an outer surface of the crank case. The hydraulic sensor detects a hydraulic pressure in a branch passage branched from one end of the main gallery. In a bottom view of a vehicle, a connector (86) of the hydraulic sensor is oriented to the vehicle outer side and overlaps with the crank case.SELECTED DRAWING: Figure 7

The present disclosure relates to a system (100) for a vehicle propulsion system, comprising: - an acceleration determination module (110) configured to determine the current acceleration (ax, ay) of the vehicle; and - a volume flow determination module (120) configured to determine acceleration-dependent intake information for at least one oil pump of the vehicle drive based on the current acceleration (ax, ay) of the vehicle, and to determine a current volume flow (P*) of the at least one oil pump based on the acceleration-dependent intake information.

A temperature management system, such as for a lubricant (3) contained in a lubricant reservoir (1) of a compressor system (2) for a heat pump that pumps a working medium, method for controlling a lubricant temperature, and heat pumps having a temperature management system, where the temperature of the lubricant (3) can be set flexibly, dynamically and in line with requirements, increasing the service life of the lubricant and improving the operating performance of the heat pump.