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公开(公告)号：US12018600B2
公开(公告)日：2024-06-25
申请号：US16491420
申请日：2018-03-07
CPC分类号： F01M11/10 , F01M1/10 , F01M1/18 , F01M2001/1007 , F01M2011/1413 , F01M2011/1446 , F01M2011/148 , F01M2250/60
摘要： A fluid delivery system for an internal combustion engine and a method of monitoring the fluid delivery system are described. The systems and methods monitor and determine various fluid quality parameters and filter element pressure drop, which can be used to determine real-time estimates of remaining useful life for both the filter element and the fluid. The respective remaining useful life calculations are used by the described systems and methods to determine change intervals for the fluid and the filter element. The change intervals can be synchronized by the systems and methods to reduce the amount of down time due to servicing of the fluid delivery system.
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公开(公告)号：US20230080987A1
公开(公告)日：2023-03-16
申请号：US17801309
申请日：2020-10-15
申请人： Hyeon Cheol JEON
发明人： Hyeon Cheol JEON
摘要： The present invention provides a preheating, lubricating, and cooling system that oil essentially used for lubrication, wear resistance, and cooling of an internal combustion engine, industrial equipment, or a mobile vehicle is used as a preheating medium, a manager supplies the oil most optimized for load operation of equipment through a preheating system separated from the existing main oil system, and an oil supply path uses a path of the existing oil system, so that the preheating and the load operation are facilitated during an extremely cold season and an extremely hot season, and a normal operation is possible even in a case of being immediately stopped after the operation.
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公开(公告)号：US20220307394A1
公开(公告)日：2022-09-29
申请号：US17211388
申请日：2021-03-24
申请人： Caterpillar Inc.
摘要： Lubricant dilution detection systems and methods are disclosed. A method for detecting lubricant dilution for a lubrication system includes detecting a shutdown event of the lubrication system. The method includes measuring lubricant pressure during the shutdown event. The method further includes determining lubricant dilution based on the measured lubricant pressure during the shutdown event. In accordance with a determination that there is lubricant dilution, the method includes outputting an indication of the lubricant dilution.
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公开(公告)号：US11208925B2
公开(公告)日：2021-12-28
申请号：US16652339
申请日：2018-10-15
发明人： Alessandro Fauda , Gabriele Andreolli , Leonardo Cadeddu , Luciano Marchetti , Pietro Francesco Crosio
摘要： A diagnostic system for a lubrication circuit of an internal combustion engine of a vehicle. The system includes a viscometer for detecting the viscosity of a lubricating liquid of the lubrication circuit, a temperature sensor for detecting the temperature of the lubricating liquid, and a control unit to acquire the state of the lubricating liquid, given by the viscosity detected for a given lubricating liquid condition, which includes the lubricating liquid temperature and the date of last replacement of the lubricating liquid, and for a given condition of use of the engine, and to assess the state of the lubricating liquid by comparing the detected viscosity of the lubricating liquid with the viscosity reference values stored in the database in the same or similar condition of lubricating liquid temperature, date of last replacement of the lubricating liquid and use of the engine.
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公开(公告)号：US11175275B2
公开(公告)日：2021-11-16
申请号：US16702651
申请日：2019-12-04
发明人： Takashi Fukunaga
摘要： A replacement recommending device for a lubricant in an internal combustion engine in which a liquid gasket is applied to a sealing spot includes a processing circuit configured to perform an acquisition process of acquiring temperature information regarding the lubricant in the internal combustion engine, and an output process of outputting a signal indicating that replacement of the lubricant is recommended by operating an output device when a parameter is equal to or greater than a predetermined value based on the temperature information acquired in the acquisition process, the parameter having a value that increases with an increase in a cumulative time in which a temperature of the lubricant is equal to or higher than a prescribed temperature, and the cumulative time being a cumulative time based on a time point at which the liquid gasket is applied to the sealing spot.
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公开(公告)号：US11118670B2
公开(公告)日：2021-09-14
申请号：US16775355
申请日：2020-01-29
IPC分类号： H02K9/19 , F16H57/04 , F16N7/38 , F01M1/02 , F16N29/02 , F01M1/16 , F01M1/18 , F01M11/10 , B60K1/00 , F16H57/037 , H02K7/116 , B60K17/16 , F16H57/02
摘要： A vehicle cooling system comprises an oil circulation circuit in which a cooling oil is circulated by an electric oil pump to cool a predetermined cooling target with the cooling oil; an oil temperature sensor detecting an oil temperature that is a temperature of the cooling oil; and a control device including a cooling control portion outputting a rotation command for operating the electric oil pump so as to cool the cooling target. The control device includes a pump abnormality determination portion outputting the rotation command to the electric oil pump to determine a presence/absence of abnormality based on a rotation state of the electric oil pump when an operation stop time of the vehicle is longer than a predefined determination permission time and an oil temperature detection value detected by the oil temperature sensor is higher than a predefined determination permission temperature.
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公开(公告)号：US10927726B2
公开(公告)日：2021-02-23
申请号：US15890075
申请日：2018-02-06
发明人： Aed M. Dudar
摘要： Methods and systems are provided for diagnosing variable oil pump degradation. In one example, a method may include cranking an engine with a motor and monitoring the motor current draw from a battery during cranking. The method may indicate degradation of a variable oil pump coupled to the engine by comparing the motor current draw with a baseline current level.
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公开(公告)号：US10794244B2
公开(公告)日：2020-10-06
申请号：US16273967
申请日：2019-02-12
摘要： Methods and systems are provided for indicating crankcase breach due to disconnection of a crankcase vent tube from an engine on a clean air side or broken crankcase vent tube. In one example, a maximum possible change in crankcase vent tube pressure is estimated for each pedal transient of a drive cycle. The change for a plurality of transients in averaged and compared to a threshold to identify vent tube disconnection.
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公开(公告)号：US10767523B2
公开(公告)日：2020-09-08
申请号：US16534001
申请日：2019-08-07
发明人： Paul Shepherd , John Magee
摘要： A vehicle engine pump assembly (100, 1000, 1100) has a gerotor pump (102), a mechanical drive (106) driven by the engine and an electrical drive (104). A controller (107) selectively engages the mechanical drive to boost pumping effort when required via a clutch.
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公开(公告)号：US20170101912A1
公开(公告)日：2017-04-13
申请号：US15384674
申请日：2016-12-20
摘要： Methods for indicating whether a crankcase of an engine is breeched are provided. One example method comprises restricting a communication of the crankcase with atmosphere, acting to increase or decrease a crankcase pressure, and indicating whether the crankcase is breeched based on the crankcase pressure. Another example method comprises sensing a crankcase pressure component, and indicating whether the crankcase is breeched based on the crankcase pressure component, the crankcase communicating with atmosphere via a conduit, a restrictedness of the conduit responsive to one or more of a crankcase pressure and a signal from an electronic control unit of the motor vehicle. Still other examples provide more particular methods for indicating whether the crankcase is breeched, and example configurations that enable the various methods.
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