摘要:
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.
摘要:
A first target module determines a first target output pressure of an engine oil pump based on a speed of the engine oil pump and an oil temperature. A second target module, based on a runtime period of an engine, sets a second target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A third target module, based on an engine load, sets a third target output pressure of the engine oil pump to one of greater than and equal to the first target output pressure. A selection module selects one of the second and third target output pressures, sets a selected target output pressure based on the selected one of the second and third target output pressures, and controls displacement of the engine oil pump based on the selected target output pressure.
摘要:
A method for operating an oil circuit for a vehicle, the oil circuit being configured to supply oil to an internal combustion engine, wherein the oil circuit includes an oil cooler, and wherein at least one temperature sensor measures the temperature of the oil flowing through the oil circuit, downstream of the oil cooler and upstream of the internal combustion engine, the temperature sensor being connected for signaling purposes to a regulating and/or control device, includes: controlling and/or regulating, by the regulating and/or control device, the temperature of the oil flowing through the oil circuit, such that the temperature measured by the temperature sensor has a defined target temperature value; and setting and/or adjusting, by the regulating and/or control device, as a function of a drive power of the internal combustion engine, the defined target temperature value so as to reduce fuel consumption of the internal combustion engine.
摘要:
A method for diagnosing a bypass valve on an oil cooling circuit for vehicles includes: a measurement step of measuring a temperature of a downstream oil of the bypass valve, a prediction step, and a diagnosis step. The prediction step compares the temperature of the downstream oil with an opening reference temperature or a closing reference temperature and predicts an open or closed state of the bypass valve. The diagnosis step depending on a result of the prediction step, compares the temperature of the downstream oil with a lowest reference temperature or a highest reference temperature and diagnoses whether the bypass valve is in a failure state in which the bypass valve is stuck in an open or closed state.
摘要:
Disclosed is an oil supply apparatus which can be realized at a low cost, and can reliably detect the lowered level of the oil filled in the oil reservoir unit. The oil supply apparatus is provided with an oil pump which is set to have a plurality of switching discharge pressures at which the oil discharge pressures are changed for each target rotation speeds when the rotation speed of the internal combustion engine reaches the respective target rotation speed. The ECU is adapted to determine that the level of oil stored in the oil pan is lowered under the condition that the deviation between the target rotation speed of the engine set to correspond to the switching discharge pressure and the rotation speed of the engine actually detected when the discharge pressure reaches the switching discharge pressure is not less than the determination value.
摘要:
Reduction of engine power loss and enhancement of fuel consumption may be achieved by an oil pump system of an engine for a vehicle including an oil sump reserving engine oil used for lubrication of the engine, a hydraulic pump pumping the engine oil, a main relief valve that is disposed on an output line of the hydraulic pump and controls an output pressure of the output line depending on the output pressure and a control pressure, and an auxiliary relief valve that redirects the output pressure to the main relief valve as a control pressure depending on operating condition of the engine.
摘要:
A method for positive crankcase ventilation diagnosis in an engine system with an engine, an intake duct connected to the engine, a PCV line connecting a crankcase of the engine with the intake duct and a sensor for determining an actual PCV pressure (pact) in the PCV line. The method comprises the steps of:
performing a diagnosis measurement by repeatedly determining at least one input parameter (pint, ne, patm, Q), which is linked to the operation of the engine system, 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 a predicted PCV pressure (ppre); and comparing the actual PCV pressure (pact) with the predicted PCV pressure (ppre) to diagnose the PCV line, wherein a diagnosis of the PCV line is based on a model error (perr).
摘要:
Liquid Separator System The present invention relates to a liquid separator system for removing liquid particles from a blow-by gas stream in the internal combustion engine. 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.
摘要:
A lubricant system for supplying lubrication to a component in a turbine engine includes a lubricant reservoir, a supply line fluidly coupling the lubricant reservoir to the component in the turbine engine, a scavenge line fluidly coupling the component to the lubricant reservoir, and a bypass line fluidly coupling the supply line to the scavenge line and bypassing the component.