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公开(公告)号：US10982605B2
公开(公告)日：2021-04-20
申请号：US16562193
申请日：2019-09-05
Applicant: Caterpillar Inc.
Inventor： Samuel Were , James Mutti , Rajesh Nair
Abstract: An engine control module (ECM) may obtain information concerning a speed of an engine, information concerning an exhaust gas temperature, information concerning an engine airflow rate, information concerning a pressure of an intake manifold associated with the engine, and information concerning a requested amount of engine braking power. The ECM may cause one or more components of a variable geometry turbocharger (VGT) to adjust based on the information concerning the speed of the engine, the information concerning the exhaust gas temperature, and the information concerning the engine airflow rate. Additionally, or alternatively, the ECM may cause the one or more components of the VGT to adjust based on the information concerning the pressure of the intake manifold associated with the engine and the information concerning the requested amount of engine braking power.
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Patent Agency Ranking
公开(公告)号：US12258899B1
公开(公告)日：2025-03-25
申请号：US18494582
申请日：2023-10-25
Applicant: Caterpillar Inc.
Inventor： Kevin Weiss , James Mutti , Ryan Treanor , Nicholas Williams , Emanuelle Carduner
Abstract: A machine includes a VGT and a controller. The controller monitors, based on causing the VGT to operate according to the non-dynamic control scheme, a plurality of hardware limit parameters associated with an engine of the machine. The controller determines that a hardware limit parameter, of the plurality of hardware limit parameters, satisfies a dynamic threshold for the hardware limit parameter and thereby causes the VGT to operate according to a dynamic control scheme. The controller then monitors the plurality of hardware limit parameters and thereby determines that each hardware limit parameter, of the plurality of hardware limit parameters, satisfies a non-dynamic threshold for the hardware limit parameter. The controller therefore causes the VGT to operate again according to the non-dynamic control scheme.
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公开(公告)号：US11708798B2
公开(公告)日：2023-07-25
申请号：US17206555
申请日：2021-03-19
Applicant: Caterpillar Inc.
Inventor： Samuel Were , James Mutti , Rajesh Nair
CPC classification number: F02D41/0007 , F01N5/04 , F02B37/24 , F01N2900/1404
Abstract: An engine control module (ECM) may obtain information concerning a speed of an engine, information concerning an exhaust gas temperature, information concerning an engine airflow rate, information concerning a pressure of an intake manifold associated with the engine, and information concerning a requested amount of engine braking power. The ECM may cause one or more components of a variable geometry turbocharger (VGT) to adjust based on the information concerning the speed of the engine, the information concerning the exhaust gas temperature, and the information concerning the engine airflow rate. Additionally, or alternatively, the ECM may cause the one or more components of the VGT to adjust based on the information concerning the pressure of the intake manifold associated with the engine and the information concerning the requested amount of engine braking power.
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4.发明申请公开(公告)号：US20210025344A1
公开(公告)日：2021-01-28
申请号：US16518537
申请日：2019-07-22
Applicant: Caterpillar Inc.
Inventor： Ryan Kominkiewicz , Brock Davis , James Mutti
Abstract: A regeneration control system for an oxidation catalyst in an internal combustion engine includes a temperature sensor to produce a temperature signal indicative of an exhaust inlet temperature that is below a regeneration temperature for accumulated hydrocarbons on the oxidation catalyst, an electrically actuated boost leakage valve, and a regeneration control unit. The regeneration control unit commands an adjustment to the position of the electrically actuated boost leakage valve to increase leaked boost to increase exhaust temperature to the regeneration temperature by way of increased air-fuel ratio. Related methodology is disclosed.
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公开(公告)号：US11326504B2
公开(公告)日：2022-05-10
申请号：US16725303
申请日：2019-12-23
Applicant: Caterpillar Inc.
Inventor： Matthew T. Wolk , Samuel Were , James Mutti , Brian P. Brennan
Abstract: A system including a cooling fan, an actuator with an actuator temperature sensor, and a controller is disclosed. The controller may be configured to receive temperature data from the actuator temperature sensor. The temperature data may include information relating to an actuator temperature of the actuator. The controller may be configured to compare the actuator temperature with a temperature threshold associated with the actuator, and control the cooling fan to adjust the actuator temperature based on determining that the actuator temperature satisfies the temperature threshold.
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6.发明授权公开(公告)号：US11002205B2
公开(公告)日：2021-05-11
申请号：US16518537
申请日：2019-07-22
Applicant: Caterpillar Inc.
Inventor： Ryan Kominkiewicz , Brock Davis , James Mutti
Abstract: A regeneration control system for an oxidation catalyst in an internal combustion engine includes a temperature sensor to produce a temperature signal indicative of an exhaust inlet temperature that is below a regeneration temperature for accumulated hydrocarbons on the oxidation catalyst, an electrically actuated boost leakage valve, and a regeneration control unit. The regeneration control unit commands an adjustment to the position of the electrically actuated boost leakage valve to increase leaked boost to increase exhaust temperature to the regeneration temperature by way of increased air-fuel ratio. Related methodology is disclosed.
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