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Patent Agency Ranking
公开(公告)号：US09989004B2
公开(公告)日：2018-06-05
申请号：US15223813
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： Austin P. Roe , Scott A. Thompson , Anthony T. Petrou , Michael J. Campagna
CPC classification number: F02D41/22 , F02B23/0672 , F02B77/083 , F16J1/16
Abstract: A machine may comprise a piston; a memory; and an electronic control module. The electronic control module may be configured to obtain information identifying a previous amount of wear of the piston pin bore and information identifying a wear limit; determine a base piston pin bore wear rate; calculate an effective piston pin bore wear rate based on the base piston pin bore wear rate; determine an amount of time between a current time and a time when the previous amount of wear of the piston pin bore was calculated; and calculate a current amount of wear of the piston pin bore based on the previous amount of wear, the amount of time, and the effective piston pin bore wear rate. The electronic control module may further be configured to calculate an amount of damage to the piston pin bore based on the current amount of wear and the wear limit.
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公开(公告)号：US20200332729A1
公开(公告)日：2020-10-22
申请号：US16388428
申请日：2019-04-18
Applicant: Caterpillar Inc.
Inventor： Christopher R. Gehrke , Anthony T. Petrou , David A. Pierpont
Abstract: A method for estimating a peak cylinder pressure associated with operation of an internal combustion engine may include receiving, in a cylinder combustion model, a fuel signal and an air signal. The cylinder combustion model may be configured to estimate at a first crankshaft angle, a first mass fuel burn rate and a first burned fuel-air ratio associated with combustion. The cylinder combustion model may also be configured to estimate at a second crankshaft angle, a combustion ignition delay associated with the combustion, and estimate at the second crankshaft angle, a start of combustion associated with the combustion of the fuel and the air supplied to the cylinder. The cylinder combustion model may be further configured to estimate, based at least in part on the start of combustion, a peak cylinder pressure associated with the combustion of the fuel and the air supplied to the cylinder.
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公开(公告)号：US09958358B2
公开(公告)日：2018-05-01
申请号：US15087397
申请日：2016-03-31
Applicant: Caterpillar Inc.
Inventor： Austin Paul Roe , Anthony T. Petrou , Kevin J. D'Sa , Jay H. Cline
CPC classification number: G01M15/05
Abstract: An imbedded control system is disclosed for use with an engine having a cylinder liner and a seal. The control system may have at least one sensor configured to generate a signal indicative of a combustion process occurring inside the cylinder liner, and a controller in communication with the sensor. The controller may be configured to determine an amount of heat generated inside the cylinder liner based on the signal and a combustion model of the engine, to determine a heat flux through the engine based on the amount of heat and a heat flux model of the engine, and to determine a temperature at the seal based on the heat flux and a thermal model of the cylinder liner. The controller may also be configured to track a time at the temperature, and to determine a damage count of the seal based on the time at the temperature.
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公开(公告)号：US09957887B2
公开(公告)日：2018-05-01
申请号：US15223869
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： Austin P. Roe , Scott A. Thompson , Anthony T. Petrou , Michael J. Campagna
CPC classification number: F02B77/04 , F02B23/0672 , F02B77/083 , F02D17/04 , F02D35/02 , F02D35/025 , F02D41/22 , F02D2200/021 , F02F3/22 , G07C5/006
Abstract: A machine may comprise a piston; a memory; and an electronic control module. The electronic control module may be configured to determine a temperature of a bowl rim of the piston; calculate a temperature of an oil gallery of the piston based on the temperature of the bowl rim; determine a carbon deposit growth rate of the piston based on the temperature of the oil gallery; determine an amount of time between a current time and the time when the previous carbon deposit growth was calculated; calculate a current carbon deposit growth on the piston; and take a remedial action based on the current carbon deposit growth. The current carbon deposit growth may be calculated based on: a previous carbon deposit growth on the piston, an amount of time between a current time and a time when the previous carbon deposit growth was calculated, and the carbon deposit growth rate.
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公开(公告)号：US20180030891A1
公开(公告)日：2018-02-01
申请号：US15224362
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： Austin P. Roe , Scott A. Thompson , Anthony T. Petrou , Michael J. Campagna , Steven C. Zoz
CPC classification number: F02B77/083 , F02D17/04 , F02D35/02 , F02D41/22 , Y02T10/40
Abstract: A machine may comprise a memory configured to store liner polish information; and an electronic control module. The electronic control module may be configured to: determine a load factor based on an amount of load on the engine; determine an end of injection factor associated with the engine; determine a liner polish rate based on the load factor and the end of injection factor; obtain, from the liner polish information stored in the memory, information identifying a previous amount of damage to the engine; determine an amount of time between a current time and a time when the previous amount of damage was calculated; calculate a current amount of damage to the engine based on the previous amount of liner polish, the amount of time, and the liner polish rate; and take a remedial action based on the current amount of damage.
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