20results 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.

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 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 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.

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 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 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 treatment device for treating a blowby gas of a hydrogen engine, the treatment device including: a catalyst unit provided in an exhaust flow path for circulating an exhaust gas from the hydrogen engine, the catalyst unit for reducing a nitrogen oxide contained in the exhaust gas by using hydrogen as a reducing agent; a scavenging flow path for circulating the blowby gas of the hydrogen engine; a scavenging pump provided in the scavenging flow path, the scavenging pump for scavenging the blowby gas from the hydrogen engine to circulate the blowby gas into the scavenging flow path; a hydrogen separation filter provided downstream of the scavenging pump in the scavenging flow path, the hydrogen separation filter for separating hydrogen contained in the blowby gas to generate, from the blowby gas, a hydrogen gas and a treated gas as a blowby gas obtained after removal of the hydrogen; and a hydrogen gas addition unit for adding the hydrogen gas generated in the hydrogen separation filter to the catalyst unit.

The application discloses a kind of ventilation filter performance test device of crankcase and its testing method, it is related to ventilation filter test technical field.The ventilation filter performance test device of crankcase includes oil drive system and filtration performance detection system, oil drive system includes oil tank, oil tank is communicated with ventilation filter, for providing drive oil liquid for ventilation filter, the speed of ventilation filter is adjusted by adjusting the pressure and flow of oil liquid.Filtration performance detection system includes oil mist generator, compressed air is communicated with ventilation filter by inlet pipeline, oil mist generator is arranged between the air inlet of inlet pipeline and ventilation filter, the oil mist generated in oil mist generator by compressed air and oil is mixed with compressed air again, and then enters ventilation filter, ventilation filter operates for a set time at a set speed, oil-gas separation is carried out on the oil-gas mixture entering ventilation filter, and the gas separated by ventilation filter is discharged through exhaust pipeline.