公开(公告)号：US10348184B2

公开(公告)日：2019-07-09

申请号：US15675845

申请日：2017-08-14

Applicant: General Electric Company

Inventor： Shahid Ali ,  Ajith Kuttannair Kumar ,  Govardhan Ganireddy ,  Prashanth Manikumar Chennamsetty

IPC: H02M1/12 ,  H02M7/539 ,  H02M7/23 ,  H02M7/493 ,  H02M1/00

Abstract: A power system is presented. The power system includes a first converter including a first output terminal a first control unit coupled to the first converter, a second converter including a second output terminal, where the second converter is coupled in parallel to the first converter, and a second control unit coupled to the second converter. The second control unit is configured to measure a plurality of phase currents at the second output terminal, determine a harmonic current transmitted by the second converter based on single phase current of the plurality of measured phase currents, and change a time-period of at least one switching cycle of a carrier wave of the second converter based on the determined harmonic current to synchronize with a carrier wave of the first converter.

公开(公告)号：US10345195B2

公开(公告)日：2019-07-09

申请号：US15063043

申请日：2016-03-07

Applicant: General Electric Company

Inventor： Subhas Chandra Das ,  Ajith Kuttannair Kumar ,  Shankar Chandrasekaran ,  Rupam Mukherjee

IPC: G01M15/11 ,  F02D29/06 ,  F02D41/22 ,  F02B63/04 ,  F02D41/00 ,  F02D29/02 ,  G01M15/12 ,  F02D41/14 ,  F02D41/28 ,  B60L50/10

Abstract: A system includes a generator coupled to an engine and configured to generate electricity from rotational movement of a shaft of the engine, a sensor configured to measure one or more of a parameter of generator output, engine speed, or engine shaft torque, and a controller configured to detect engine imbalance based on a frequency content of a signal output from the sensor in response to a contribution to the frequency content from another component of the system being less than a threshold value.

公开(公告)号：US20190193760A1

公开(公告)日：2019-06-27

申请号：US16222822

申请日：2018-12-17

Applicant: General Electric Company

Inventor： Ajith Kuttannair Kumar ,  Shankar Chandrasekaran ,  Subhas Chandra Das ,  Rupam Mukherjee ,  Munishwar Ahuja

IPC: B61L3/00 ,  B61L15/00

CPC classification number: B61L3/006 ,  B61C5/00 ,  B61L3/002 ,  B61L3/008 ,  B61L15/0072 ,  B61L15/0081

Abstract: A locomotive control system measures actuating parameters of a locomotive propulsion system and monitors the actuating parameters according to a forcing function of operation of the propulsion system. A degraded component of the locomotive is identified by comparing actuating parameters generated according to the forcing function with actuating parameters expressed as a function of speed of another locomotive propulsion system, examining changes in the generated actuating parameters over time, examining oscillations in movement of the locomotive during gear shifting, comparing wheel speed decreases during another forcing function, and/or comparing a magnitude of a spectrum of the actuating parameters of with one or more designated magnitudes.

公开(公告)号：US20190061794A1

公开(公告)日：2019-02-28

申请号：US16170741

申请日：2018-10-25

Applicant: General Electric Company

Inventor： Joseph Forrest Noffsinger ,  Ajith Kuttannair Kumar ,  Yuri Alexeyevich Plotnikov ,  Jeffrey Michael Fries ,  Steven Joseph Ehret

IPC: B61L23/04 ,  B61L3/10

Abstract: A route examining system includes first and second detection units and an identification unit. The first and second detection units are configured to be disposed onboard a vehicle system traveling along a route having plural conductive tracks. The first and second detection units are disposed at spaced apart locations along a length of the vehicle system. The first and second detection units are configured to monitor one or more electrical characteristics of the conductive tracks in response to an examination signal being electrically injected into at least one of the conductive tracks. The identification unit includes one or more processors configured to determine that a section of the route includes an electrical short responsive to the one or more electrical characteristics monitored by the first and second detection units indicating that the examination signal is received by only one of the first and second detection units.

公开(公告)号：US10167005B2

公开(公告)日：2019-01-01

申请号：US15075118

申请日：2016-03-19

Applicant: General Electric Company

Inventor： Joseph Forrest Noffsinger ,  Ajith Kuttannair Kumar ,  Yuri Alexeyevich Plotnikov ,  Jeffrey Michael Fries ,  Steven Joseph Ehret

IPC: B61L23/04 ,  B61L3/10

Abstract: A route examining system includes first and second detection units and an identification unit. The first and second detection units are configured to be disposed onboard a vehicle system traveling along a route having plural conductive tracks. The first and second detection units are disposed at spaced apart locations along a length of the vehicle system. The first and second detection units are configured to monitor one or more electrical characteristics of the conductive tracks in response to an examination signal being electrically injected into at least one of the conductive tracks. The identification unit includes one or more processors configured to determine that a section of the route includes an electrical short responsive to the one or more electrical characteristics monitored by the first and second detection units indicating that the examination signal is received by only one of the first and second detection units.

公开(公告)号：US10006877B2

公开(公告)日：2018-06-26

申请号：US14464473

申请日：2014-08-20

Applicant: General Electric Company

Inventor： Ajith Kuttannair Kumar ,  Jeffrey Michael Fries ,  Joseph Forrest Noffsinger ,  Michael Scott Mitchell ,  Steven Joseph Ehret

IPC: G01N27/20 ,  B61L3/00

CPC classification number: G01N27/20

Abstract: A system may include a coded test signal transmission system configured to transmit a unique coded test signal along a route, and a coded test signal receiving system configured to receive the unique coded test signal along the route. The unique coded test signal received by the coded test signal receiving system is used to determine one or more characteristics of the route.

公开(公告)号：US09956974B2

公开(公告)日：2018-05-01

申请号：US13900307

申请日：2013-05-22

Applicant: General Electric Company

Inventor： Jared Klineman Cooper ,  Ajith Kuttannair Kumar ,  Eugene Smith ,  Nick David Nagrodsky ,  William Cherrick Schoonmaker ,  Todd William Goodermuth

IPC: G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B61L15/00 ,  B61C17/12 ,  B61L25/02

CPC classification number: B61L15/0036 ,  B61C17/12 ,  B61L15/0027 ,  B61L15/0063 ,  B61L15/0072 ,  B61L15/0081 ,  B61L25/028 ,  Y02T30/10

Abstract: A method includes obtaining data relating to operation of a first vehicle in a vehicle consist that includes the first vehicle and a second vehicle communicatively coupled with each other by a communication channel. The first vehicle includes a first electronic component performing functions for the first vehicle using the first data. The method also includes communicating the first data over the communication channel from the first vehicle to a second electronic component disposed onboard the second vehicle responsive to the first electronic component being unable to perform the one or more functions for the first vehicle using the first data. The method further includes performing the functions of the first electronic component with the second electronic component using the first data that is received from the first vehicle.

公开(公告)号：US09950722B2

公开(公告)日：2018-04-24

申请号：US14863998

申请日：2015-09-24

Applicant: General Electric Company

Inventor： Ajith Kuttannair Kumar ,  David Eldredge ,  Daniel Ballesty ,  Jared Klineman Cooper ,  Christopher Roney ,  Paul Houpt ,  Stephen Mathe ,  Paul Julich ,  Jeffrey Kisak ,  Glenn Shaffer ,  Scott Nelson ,  Wolfgang Daum

IPC: B61L3/00 ,  B61L27/00

CPC classification number: B61L27/0027 ,  B61L27/0077 ,  B61L2205/04

Abstract: A system includes a first controller, a data acquisition device, a friction modification unit, and a friction management controller. The first controller is configured to obtain an operational setting for a vehicle, and to output a first signal relating to the operational setting for controlling the vehicle. The data acquisition device is configured to obtain operational data of the vehicle as the vehicle travels, and to provide the operational data to the first controller. The first controller is configured to obtain a difference between the operational data and the operational setting, and to adjust the first signal based on the difference. The friction modification unit is configured to modify a friction characteristic of a surface of the route. The friction management controller is configured to direct the friction modification unit to modify the friction characteristic of the surface of the route based on the operational setting.

公开(公告)号：US20180105188A9

公开(公告)日：2018-04-19

申请号：US14496655

申请日：2014-09-25

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sharath Srinivas Deshpande ,  Vishram Vinayak Nandedkar ,  Ajith Kuttannair Kumar

IPC: B61C17/12

CPC classification number: B61C17/12 ,  B60Q1/40 ,  B60R25/04 ,  B60S1/0814 ,  B60W2510/10 ,  Y02T10/7258

Abstract: A method and system determine, during movement of a vehicle system along a route, a tractive load demanded by the vehicle system to propel the vehicle system along the route. The vehicle system includes a propulsion-generating vehicle having plural individually controllable traction motors. A first selected set of the traction motors for deactivation is identified during the movement of the vehicle system along the route based at least in part on the tractive load demanded by the vehicle system. The traction motors in the first selected set are deactivated while at least one of the traction motors in a first remaining set of the traction motors continues to generate tractive effort to propel the vehicle system. The traction motors that are selected for deactivation may all be on the same vehicle in the vehicle system, or may be on different vehicles of the same vehicle system.

公开(公告)号：US09889746B2

公开(公告)日：2018-02-13

申请号：US14974071

申请日：2015-12-18

Applicant: General Electric Company

Inventor： Jeffrey John Wolff ,  Ajith Kuttannair Kumar ,  Henry Todd Young ,  Jason Daniel Kuttenkuler ,  Maksim V. Borisenko ,  Edward Petrak

IPC: F02D41/12 ,  B60L7/20 ,  B60L11/06 ,  B60L7/16 ,  B60W30/182 ,  F02D29/02 ,  F02N11/08

CPC classification number: B60L7/20 ,  B60L7/16 ,  B60L11/06 ,  B60W30/182 ,  F02D29/02 ,  F02N11/0862

Abstract: A drive system includes an engine, an alternator coupled to the engine, the alternator being configured to power at least one auxiliary load, a traction motor system operatively coupled to drive wheels of the vehicle, the traction motor system being configured for receiving primary electrical power from the alternator and for propelling the vehicle in response to the primary electrical power, and a motor electrically connected to the traction motor system and mechanically coupled to the engine. The motor is configured to receive electrical power from the traction motor system in a dynamic braking mode of operation of the traction motor system and to communicate power to the engine during the dynamic braking mode.