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1.发明申请公开(公告)号：US20180003118A1
公开(公告)日：2018-01-04
申请号：US15537146
申请日：2014-12-17
Applicant: CUMMINS INC.
Inventor： Axel O. zur Loye , Christopher Pollitt , Timothy O. Lutz
CPC classification number: F02D41/1446 , F02B37/183 , F02D9/04 , F02D19/06 , F02D19/0605 , F02D23/00 , F02D41/0002 , F02D41/0007 , F02D41/0025 , F02D41/0082 , F02D41/0085 , F02D41/2422 , F02D41/401 , F02D2041/001 , F02D2200/0406 , F02D2200/1002 , F02D2200/101 , Y02T10/144 , Y02T10/36 , Y02T10/42
Abstract: Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.
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Patent Agency Ranking
公开(公告)号：US09371789B2
公开(公告)日：2016-06-21
申请号：US14310521
申请日：2014-06-20
Applicant: Cummins Inc.
Inventor： Mark A. Rosswurm , Axel O. zur Loye
CPC classification number: F02D41/0027 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/1446 , F02D2200/0611 , F02D2200/0802 , Y02T10/36
Abstract: This disclosure provides a system and method that eliminates the need for manually calibrating or adjusting a dual fuel internal combustion engine to compensate for variations in composition of a gaseous fuel or other variations, such as ambient or site conditions. The system and method functions by determining an engine load, determining an advantageous gaseous fuel substitution rate from the engine load and speed in addition to an actual gaseous fuel substitution rate, modifying the advantageous gaseous fuel substitution rate by a minimum liquid fuel flow rate, engine protection parameters, and oxidation catalyst protection parameters, and then determining an error term in response to the modified advantageous gaseous fuel substitution rate and the actual gaseous fuel substitution rate. The error term is used to adjust a gaseous fuel control valve.
Abstract translation: 本公开提供了一种系统和方法，其消除了手动校准或调节双燃料内燃机以补偿气体燃料的组成变化或其它变化（例如环境或现场条件）的需要。 该系统和方法通过确定发动机负载，除了实际气体燃料替代速率之外，确定来自发动机负载和速度的有利的气体燃料替代速率，通过最小液体燃料流量来改变有利的气体燃料替代速率，发动机 保护参数和氧化催化剂保护参数，然后响应于改进的有利气体燃料替代速率和实际气体燃料替代速率来确定误差项。 误差项用于调节气体燃料控制阀。
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公开(公告)号：US11448148B2
公开(公告)日：2022-09-20
申请号：US16800281
申请日：2020-02-25
Applicant: Cummins Inc.
Inventor： Axel O. zur Loye , Mark A. Bargent , Andrew G. Kitchen , Robin J. Bremmer , Philipe F. Saad , Milan K. Visaria , Timothy P. Lutz
Abstract: A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.
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公开(公告)号：US20200271066A1
公开(公告)日：2020-08-27
申请号：US16800281
申请日：2020-02-25
Applicant: Cummins Inc.
Inventor： Axel O. zur Loye , Mark A. Bargent , Andrew G. Kitchen , Robin J. Bremmer , Philipe F. Saad , Milan K. Visaria , Timothy P. Lutz
Abstract: A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.
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公开(公告)号：US11136932B2
公开(公告)日：2021-10-05
申请号：US15537146
申请日：2015-12-17
Applicant: CUMMINS INC.
Inventor： Axel O. zur Loye , Christopher Pollitt , Timothy P. Lutz
Abstract: Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.
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公开(公告)号：US20140373822A1
公开(公告)日：2014-12-25
申请号：US14310521
申请日：2014-06-20
Applicant: Cummins Inc.
Inventor： Mark A. Rosswurm , Axel O. zur Loye
IPC: F02D41/00
CPC classification number: F02D41/0027 , F02D19/08 , F02D19/105 , F02D41/0025 , F02D41/1446 , F02D2200/0611 , F02D2200/0802 , Y02T10/36
Abstract: This disclosure provides a system and method that eliminates the need for manually calibrating or adjusting a dual fuel internal combustion engine to compensate for variations in composition of a gaseous fuel or other variations, such as ambient or site conditions. The system and method functions by determining an engine load, determining an advantageous gaseous fuel substitution rate from the engine load and speed in addition to an actual gaseous fuel substitution rate, modifying the advantageous gaseous fuel substitution rate by a minimum liquid fuel flow rate, engine protection parameters, and oxidation catalyst protection parameters, and then determining an error term in response to the modified advantageous gaseous fuel substitution rate and the actual gaseous fuel substitution rate. The error term is used to adjust a gaseous fuel control valve.
Abstract translation: 本公开提供了一种系统和方法，其消除了手动校准或调节双燃料内燃机以补偿气体燃料的组成变化或其它变化（例如环境或现场条件）的需要。 该系统和方法通过确定发动机负载，除了实际气体燃料替代速率之外，确定来自发动机负载和速度的有利的气体燃料替代速率，通过最小液体燃料流量来改变有利的气体燃料替代速率，发动机 保护参数和氧化催化剂保护参数，然后响应于改进的有利气体燃料替代速率和实际气体燃料替代速率来确定误差项。 误差项用于调节气体燃料控制阀。
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