公开(公告)号：US12155198B2

公开(公告)日：2024-11-26

申请号：US18108771

申请日：2023-02-13

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson

IPC: H02H7/122 ,  G01R31/50 ,  H02M1/32 ,  H02M7/00 ,  H02M7/5387 ,  H02M7/72 ,  H02H9/08 ,  H02M1/12

Abstract: A circuit for minimizing energy provided to a ground fault includes a source, a multiple switches, an output filter, and a controller. The switches include a first side pair of switches and a second side pair of switches configured to provide an output signal based on the source. The output filter includes one or more energy storage elements coupled to the first side pair of switches or the second side pair of switches. The controller is configured to receive a ground fault signal that indicates a fault has occurred and configured to generate a switch signal for the switches for a minimum energy state of the output filter and in response to the ground fault signal.

公开(公告)号：US11799342B2

公开(公告)日：2023-10-24

申请号：US17166746

申请日：2021-02-03

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson

IPC: H02K3/26 ,  H02K15/04 ,  H02K21/24 ,  H02K1/2795

CPC classification number: H02K3/26 ,  H02K1/2795 ,  H02K15/0407 ,  H02K21/24 ,  H02K2203/03

Abstract: An electric machine includes a plurality of permanent magnets and a plurality of conductors. The plurality of permanent magnets are arranged radially around a rotation axis of the electric machine and spaced apart from the rotation axis of the electric machine. At least one of the plurality of magnets has a shape in a plane of rotation intersected by the rotation axis. The plurality of conductors are arranged relative to the plurality of magnets and spaced apart from each other circumferentially around the rotation axis of the electric machine. At least one of the plurality of conductors includes a trace having a polygon shape different than the shape of the at least one of the plurality of magnets.

公开(公告)号：US11777376B2

公开(公告)日：2023-10-03

申请号：US17554478

申请日：2021-12-17

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson

IPC: H02K11/22 ,  H02K11/225 ,  H02K11/33 ,  H02K11/30

CPC classification number: H02K11/225 ,  H02K11/30 ,  H02K11/33 ,  H02K2211/03

Abstract: An electric machine includes at least a printed circuit board and a magnetically permeable element. The printed circuit board includes a reluctance coil configured to generate a voltage in presence of a magnetic flux. The magnetically permeable element has a first end positioned adjacent to a rotor of the electrical machine and a second end positioned adjacent to the coil of the printed circuit board. In some examples, rotation of the rotor causes a change in the magnetic flux through the magnetically permeable element and generation of the voltage across the reluctance coil.

公开(公告)号：US11711034B2

公开(公告)日：2023-07-25

申请号：US17529127

申请日：2021-11-17

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson ,  Jonathan Bykowski

IPC: H02P7/00

CPC classification number: H02P7/0094

Abstract: An electric machine includes a rotor, a stator, at least one measurement circuit, and a controller. The rotor includes a plurality of salient poles arranged radially around a rotation axis of the electric machine and spaced apart from the rotation axis of the electric machine. The stator includes a plurality of coils configured to selectively align with the plurality of salient poles of the rotor. The at least one measurement circuit is configured to measure at least one current through at least one of the plurality of coils. The measured current includes a current ripple. The controller configured to compute a position of the rotor based on a characteristic of the current ripple.

公开(公告)号：US11667273B2

公开(公告)日：2023-06-06

申请号：US17560134

申请日：2021-12-22

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson

IPC: B60W20/15 ,  B60W10/06 ,  B60W10/08 ,  F02D41/00 ,  F02D19/02 ,  F02D29/06 ,  F02M21/02 ,  B60L15/20 ,  B60W10/26

CPC classification number: B60W20/15 ,  B60W10/06 ,  B60W10/08 ,  F02D19/021 ,  F02D29/06 ,  F02D41/0027 ,  F02M21/0215 ,  B60L15/2045 ,  B60W10/26 ,  F02D2250/24 ,  Y02T10/30

Abstract: A system for supplementing a fixed fuel source for an engine includes a motor-generator set connected to a mechanical load device and a controller. The motor-generator set includes a motor and a generator. The engine is configured to provide a first torque from a fixed fuel source from an independent variable flow input. The fixed fuel source is independent of the engine and set external to the engine. The mechanical load device is driven by the engine and configured to require a second torque defined by an independent flow device. The controller is configured to compare the first torque and the second torque, provide a first control signal to the motor to provide power to the engine when the second torque exceeds the first torque and provide a second control signal to the generator to draw power from the engine when the first torque exceeds the second torque.

公开(公告)号：US20220242541A1

公开(公告)日：2022-08-04

申请号：US17585319

申请日：2022-01-26

Applicant: Kohler Co.

Inventor： Joseph Raats ,  Isaac S. Frampton

IPC: B63H21/20 ,  B63H23/02

Abstract: A hybrid propulsion system for a marine vessel is described. The hybrid propulsion system includes a shaft coupled to a propeller, a planetary gear system configured to operate in a first configuration and a second configuration, and a motor-generator. The motor-generator is configured to selectively rotate with and provide torque to the shaft through the planetary gear system in the first configuration and to rotate independently from the shaft in the second configuration. The shaft extends from the propeller through the planetary gear system and the motor-generator to a torque producing device for the marine vessel.

公开(公告)号：US11368100B2

公开(公告)日：2022-06-21

申请号：US15649076

申请日：2017-07-13

Applicant: Kohler Co.

Inventor： Robert J. Danforth, III ,  Adam Larson ,  Isaac S. Frampton

IPC: H02M5/458 ,  H02J9/08 ,  H02J9/06 ,  H02J7/02 ,  H02M5/293 ,  H02M7/797

Abstract: An apparatus includes a controlled field alternator or utility source of electrical power, a conversion device, and a controller. The conversion device includes a first power input associated with a first power source, a second power input associated with a second power source, and circuitry configured to perform a first conversion of power from a first format from the first power source to a second format for charging the second power source and perform a second conversion of power from the second format for the second power source to a third format for supplying a load.

公开(公告)号：US11242044B2

公开(公告)日：2022-02-08

申请号：US16038867

申请日：2018-07-18

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Adam Larson

IPC: B60W20/15 ,  B60W10/06 ,  B60W10/08 ,  F02D41/00 ,  F02D19/02 ,  F02D29/06 ,  F02M21/02 ,  B60L15/20 ,  B60W10/26

Abstract: A system for supplementing a fixed fuel source for an engine includes a motor-generator set connected to a mechanical load device and a controller. The motor-generator set includes a motor and a generator. The engine is configured to provide a first torque from a fixed fuel source from an independent variable flow input. The fixed fuel source is independent of the engine and set external to the engine. The mechanical load device is driven by the engine and configured to require a second torque defined by an independent flow device. The controller is configured to compare the first torque and the second torque, provide a first control signal to the motor to provide power to the engine when the second torque exceeds the first torque and provide a second control signal to the generator to draw power from the engine when the first torque exceeds the second torque.

公开(公告)号：US11073808B2

公开(公告)日：2021-07-27

申请号：US16827128

申请日：2020-03-23

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Steve Jungers ,  Douglas W. Dorn ,  Allen Frederick

IPC: G05B19/042 ,  F04B39/00 ,  H02J9/06 ,  F04B35/04 ,  F04B39/12

Abstract: A generator system for operation of at least one generator and at least one breaker includes an interface, a database, and a generator controller. The interface is configured to receive an architecture for the generator system. The database includes at least one generator parameter and at least one breaker parameter. The generator controller is configured to determine generator layouts from the architecture for the generator system. The generator controller determines a generator system command based on a comparison of the generator layouts, the at least one generator parameter, and the at least one breaker parameter.

公开(公告)号：US10823772B2

公开(公告)日：2020-11-03

申请号：US16410465

申请日：2019-05-13

Applicant: Kohler Co.

Inventor： Isaac S. Frampton ,  Douglas W. Dorn

IPC: G01R25/00 ,  G01R31/34 ,  G01R1/28 ,  H02J3/38 ,  G01R19/02 ,  H02J3/40

Abstract: A generator waveform is measured using one or more techniques that reduce the computing resources for measuring the generator waveform and the time required for measuring the generator waveform. One example includes a template matching technique that iteratively selects templates to estimate the phase offset of the generator waveform. One example includes a root mean squared value calculated from less than sample time period that is less than one half of a cycle of the generator waveform. A generator controller calculates a command or parameter for the generator based on the estimated phase offset or the root mean squared value.