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公开(公告)号：US11268596B2
公开(公告)日：2022-03-08
申请号：US16511622
申请日：2019-07-15
Applicant: Caterpillar Inc.
Inventor： John Seipold , Gaurav Vasudeva , Evan Jacobson , Eric Manning
Abstract: A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.
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公开(公告)号：US10214090B1
公开(公告)日：2019-02-26
申请号：US15685674
申请日：2017-08-24
Applicant: Caterpillar Inc.
Inventor： Evan Jacobson , John Seipold , Michael Cronin
Abstract: A power system includes an engine, a driveshaft, and an energy storage system having a flywheel. The energy storage system further includes a transmission structured to transfer energy between the flywheel and the driveshaft. The transmission includes a differential geartrain and a variator coupled to the differential geartrain and having a variator input shaft and a variator output shaft rotatable at a range of speed ratios. The variator may be coupled to a sun gear in the differential geartrain and controls a pattern of energy transfer between the flywheel and the driveshaft.
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公开(公告)号：US10608497B2
公开(公告)日：2020-03-31
申请号：US15844775
申请日：2017-12-18
Applicant: Caterpillar Inc.
Inventor： Evan Jacobson , John Seipold
Abstract: An electric power system includes an engine, a generator, a drivetrain including a driveshaft, and an energy storage system having a flywheel. In an implementation, a parallel-path continuously variable transmission is structured to transfer energy between the flywheel and the driveshaft, and in another implementation a parallel-path continuously variable transmission transfers energy between the engine and the generator. The transmission includes a variator and a differential geartrain. An electric motor is coupled to the flywheel and charges the flywheel such that stored flywheel energy is available for bringing up engine speed from a standby state and/or to accommodate generator load changes with limited generator speed changes.
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4.发明申请公开(公告)号：US20190061510A1
公开(公告)日：2019-02-28
申请号：US15685674
申请日：2017-08-24
Applicant: Caterpillar Inc.
Inventor： Evan Jacobson , John Seipold , Michael Cronin
Abstract: A power system includes an engine, a driveshaft, and an energy storage system having a flywheel. The energy storage system further includes a transmission structured to transfer energy between the flywheel and the driveshaft. The transmission includes a differential geartrain and a variator coupled to the differential geartrain and having a variator input shaft and a variator output shaft rotatable at a range of speed ratios. The variator may be coupled to a sun gear in the differential geartrain and controls a pattern of energy transfer between the flywheel and the driveshaft.
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Patent Agency Ranking
公开(公告)号：US09945375B2
公开(公告)日：2018-04-17
申请号：US15001588
申请日：2016-01-20
Applicant: Caterpillar Inc.
Inventor： Yanchai Zhang , Zhijun Cai , Venkata Dandibhotla , Evan Jacobson , Koti Padarthy
IPC: E21B43/26 , F04B53/10 , G05B17/02 , G05B19/416 , G06Q50/02 , F04B19/22 , F04B47/02 , F04B49/06 , F04B49/08 , F04B51/00
CPC classification number: F04B53/10 , F04B19/22 , F04B47/02 , F04B49/065 , F04B49/08 , F04B51/00 , F04B2203/0208 , F04B2205/05 , G05B17/02 , G05B19/416 , G05B2219/37399 , G05B2219/42162 , G06Q50/02
Abstract: A method for automatic tuning of a reference model for a fracking rig pump is provided. The method includes determining, at a processor connected to a fracking rig pump, a current choke area associated with the fracking rig pump based upon at least a maximum power and a maximum pressure obtained from the fracking rig pump for a pump speed of the fracking rig pump, obtaining a pump power and a pump pressure for the current choke area based upon at least a reference model for the fracking rig pump stored in a memory device coupled to the processor, determining a pressure difference between the maximum pressure obtained from the fracking rig pump and the pump pressure, determining a power difference between the maximum power obtained from the fracking rig pump and the pump power obtained from the reference model, and providing an updated choke area to the reference model.
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公开(公告)号：US20220145966A1
公开(公告)日：2022-05-12
申请号：US17585666
申请日：2022-01-27
Applicant: Caterpillar Inc.
Inventor： John SEIPOLD , Gaurav Vasudeva , Evan Jacobson , Eric Manning
Abstract: A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.
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公开(公告)号：US11680627B2
公开(公告)日：2023-06-20
申请号：US17585666
申请日：2022-01-27
Applicant: Caterpillar Inc.
Inventor： John Seipold , Gaurav Vasudeva , Evan Jacobson , Eric Manning
CPC classification number: F16H3/44 , F16H47/04 , H02K7/116 , H02K7/1815 , F16H39/42 , F16H2200/2005
Abstract: A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.
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公开(公告)号：US20190190346A1
公开(公告)日：2019-06-20
申请号：US15844775
申请日：2017-12-18
Applicant: Caterpillar Inc.
Inventor： Evan Jacobson , John Seipold
CPC classification number: H02K7/025 , F16F15/30 , F16H47/04 , H02K7/1815 , H02K47/00
Abstract: An electric power system includes an engine, a generator, a drivetrain including a driveshaft, and an energy storage system having a flywheel. In an implementation, a parallel-path continuously variable transmission is structured to transfer energy between the flywheel and the driveshaft, and in another implementation a parallel-path continuously variable transmission transfers energy between the engine and the generator. The transmission includes a variator and a differential geartrain. An electric motor is coupled to the flywheel and charges the flywheel such that stored flywheel energy is available for bringing up engine speed from a standby state and/or to accommodate generator load changes with limited generator speed changes.
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公开(公告)号：US20170204712A1
公开(公告)日：2017-07-20
申请号：US15001588
申请日：2016-01-20
Applicant: Caterpillar Inc.
Inventor： Yanchai Zhang , Zhijun Cai , Venkata Dandibhotla , Evan Jacobson , Koti Padarthy
IPC: E21B43/26 , G05B19/042 , F04B53/10 , G05B19/416 , G06Q50/02 , F04B19/22 , E21B41/00 , G05B17/02
CPC classification number: F04B53/10 , F04B19/22 , F04B47/02 , F04B49/065 , F04B49/08 , F04B51/00 , F04B2203/0208 , F04B2205/05 , G05B17/02 , G05B19/416 , G05B2219/37399 , G05B2219/42162 , G06Q50/02
Abstract: A method for automatic tuning of a reference model for a fracking rig pump is provided. The method includes determining, at a processor connected to a fracking rig pump, a current choke area associated with the fracking rig pump based upon at least a maximum power and a maximum pressure obtained from the fracking rig pump for a pump speed of the fracking rig pump, obtaining a pump power and a pump pressure for the current choke area based upon at least a reference model for the fracking rig pump stored in a memory device coupled to the processor, determining a pressure difference between the maximum pressure obtained from the fracking rig pump and the pump pressure, determining a power difference between the maximum power obtained from the fracking rig pump and the pump power obtained from the reference model, and providing an updated choke area to the reference model.
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