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1.发明申请公开(公告)号：US20220349357A1
公开(公告)日：2022-11-03
申请号：US17867797
申请日：2022-07-19
Applicant: Tula Technology, Inc.
Inventor： Louis Joseph Serrano , Vijay Srinivasan
Abstract: Methods, systems, and devices for operating an engine controller in a vehicle for managing motor torque smoothing. One controller is configured to select a periodic disruptive waveform generated over a period of time to approximate that is associated with the vehicle being at idle, determine a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, and initiate a supplemental quantity of torque during the period of time based on the disruption quantity of torque.
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公开(公告)号：US11560135B2
公开(公告)日：2023-01-24
申请号：US17531437
申请日：2021-11-19
Applicant: Tula Technology, Inc.
Inventor： Vijay Srinivasan , Louis Joseph Serrano
IPC: B60T1/00 , B60W20/13 , B60W20/15 , F02P9/00 , F02D13/02 , F02D13/04 , B60W10/06 , F02D41/00 , F02D41/14 , B60W10/08
Abstract: Methods, systems, and devices for managing motor torque smoothing for internal combustion engine cylinder recharging events are described herein. An engine controller in a vehicle for managing motor torque smoothing for internal combustion engine cylinder recharging events may be configured to operate the internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders are not designated to be fired, determine a recharge event time period where a particular one of the cylinders that have not been designated to be fired is recharged, identify a disruption quantity of torque during the recharging event time period, and actuate an additional motor to initiate a supplemental quantity of torque during the recharge event time period based on the disruption quantity of torque.
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3.发明授权公开(公告)号：US11719175B2
公开(公告)日：2023-08-08
申请号：US17867797
申请日：2022-07-19
Applicant: Tula Technology, Inc.
Inventor： Louis Joseph Serrano , Vijay Srinivasan
CPC classification number: F02D41/0087 , F02D17/02 , F02D41/0002 , F02D41/3058 , F02D2041/0012 , F02D2200/101 , F02D2250/18
Abstract: Methods, systems, and devices for operating an engine controller in a vehicle for managing motor torque smoothing. One controller is configured to select a periodic disruptive waveform generated over a period of time to approximate that is associated with the vehicle being at idle, determine a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, and initiate a supplemental quantity of torque during the period of time based on the disruption quantity of torque.
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4.发明授权公开(公告)号：US11421613B2
公开(公告)日：2022-08-23
申请号：US17466888
申请日：2021-09-03
Applicant: Tula Technology, Inc.
Inventor： Louis Joseph Serrano , Vijay Srinivasan
Abstract: Methods, systems, and devices for operating an internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders of the internal combustion engine are not designated to be fired, determining a smoothing event time period where a particular one of the cylinders that have not been designated to be fired is either skipped or recharged, selecting a periodic disruptive waveform to approximate that is related to a skip or recharge event that is part of the smoothing event time period, determining a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, determining a timeframe for utilizing the first harmonic, and actuating an additional motor to initiate a supplemental quantity of torque during the smoothing event time period based on the disruption quantity of torque.
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公开(公告)号：US20220203959A1
公开(公告)日：2022-06-30
申请号：US17531437
申请日：2021-11-19
Applicant: Tula Technology, Inc.
Inventor： Vijay Srinivasan , Louis Joseph Serrano
IPC: B60W20/13 , F02D41/00 , F02D41/14 , F02D13/04 , B60W10/08 , F02P9/00 , B60W20/15 , B60W10/06 , F02D13/02
Abstract: Methods, systems, and devices for managing motor torque smoothing for internal combustion engine cylinder recharging events are described herein. An engine controller in a vehicle for managing motor torque smoothing for internal combustion engine cylinder recharging events may be configured to operate the internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders are not designated to be fired, determine a recharge event time period where a particular one of the cylinders that have not been designated to be fired is recharged, identify a disruption quantity of torque during the recharging event time period, and actuate an additional motor to initiate a supplemental quantity of torque during the recharge event time period based on the disruption quantity of torque.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11143125B1
公开(公告)日：2021-10-12
申请号：US17138116
申请日：2020-12-30
Applicant: Tula Technology, Inc.
Inventor： Louis Joseph Serrano , Vijay Srinivasan
Abstract: Methods, systems, and devices for operating an internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders of the internal combustion engine are not designated to be fired, determining a smoothing event time period where a particular one of the cylinders that have not been designated to be fired is either skipped or recharged, selecting a periodic disruptive waveform to approximate that is related to a skip or recharge event that is part of the smoothing event time period, determining a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, determining a timeframe for utilizing the first harmonic, and actuating an additional motor to initiate a supplemental quantity of torque during the smoothing event time period based on the disruption quantity of torque.
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公开(公告)号：US12209515B2
公开(公告)日：2025-01-28
申请号：US18440939
申请日：2024-02-13
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Timothy R. Frazier , J. Steven Kolhouse , Steven J. Small , Louis Joseph Serrano
Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes initiating, by a controller, a CDA mode for an engine; determining, by the controller, a first cycle count for a first oil control solenoid of the CDA system; determining, by the controller, a second cycle count for a second oil control solenoid of the CDA system; comparing, by the controller, the first cycle count and the second cycle count; and modifying, by the controller, operation of the CDA mode for the engine based on the comparison.
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公开(公告)号：US11933202B2
公开(公告)日：2024-03-19
申请号：US17870452
申请日：2022-07-21
Applicant: Cummins Inc. , Tula Technology, Inc.
Inventor： Timothy R. Frazier , J. Steven Kolhouse , Steven J. Small , Louis Joseph Serrano
CPC classification number: F01L13/0005 , F01L9/10 , F02D13/0223 , F02D13/06 , F02D41/0087 , F01L2013/001
Abstract: Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes generating, by a controller, an initial life factor for the component; initiating, by the controller, a CDA mode for an engine; determining, by the controller, an actual life factor for the component, the actual life factor determined by comparing a number of switching events of a cylinder in the CDA mode to a number of cycles of the cylinder in the CDA mode; comparing, by the controller, the actual life factor to the initial life factor; and modifying, by the controller based on the comparison, operation of the engine in the CDA mode to adjust the actual life factor.
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9.发明申请公开(公告)号：US20220205399A1
公开(公告)日：2022-06-30
申请号：US17466888
申请日：2021-09-03
Applicant: Tula Technology, Inc.
Inventor： Louis Joseph Serrano , Vijay Srinivasan
Abstract: Methods, systems, and devices for operating an internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders of the internal combustion engine are not designated to be fired, determining a smoothing event time period where a particular one of the cylinders that have not been designated to be fired is either skipped or recharged, selecting a periodic disruptive waveform to approximate that is related to a skip or recharge event that is part of the smoothing event time period, determining a first harmonic sinusoid from a group of harmonic sinusoids that reduces the error between an approximated waveform and the disruptive waveform, determining a timeframe for utilizing the first harmonic, and actuating an additional motor to initiate a supplemental quantity of torque during the smoothing event time period based on the disruption quantity of torque.
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公开(公告)号：US11208093B1
公开(公告)日：2021-12-28
申请号：US17138064
申请日：2020-12-30
Applicant: Tula Technology, Inc.
Inventor： Vijay Srinivasan , Louis Joseph Serrano
IPC: B60T1/00 , B60W20/13 , B60W20/15 , F02P9/00 , F02D13/02 , F02D13/04 , B60W10/06 , F02D41/00 , F02D41/14 , B60W10/08
Abstract: Methods, systems, and devices for managing motor torque smoothing for internal combustion engine cylinder recharging events are described herein. An engine controller in a vehicle for managing motor torque smoothing for internal combustion engine cylinder recharging events may be configured to operate the internal combustion engine at a firing fraction that is less than a value of 1.0, wherein one or more cylinders are not designated to be fired, determine a recharge event time period where a particular one of the cylinders that have not been designated to be fired is recharged, identify a disruption quantity of torque during the recharging event time period, and actuate an additional motor to initiate a supplemental quantity of torque during the recharge event time period based on the disruption quantity of torque.
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