Inventor
KUMAR AJITH K
US46 patents
⚠️ This page may combine multiple inventors who share the name “KUMAR AJITH K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN ELECTRIC
42 patentsUS5629567AMay 13, 1997
Speed control system for an AC locomotive
GEN ELECTRIC148 citations99
US5480220AJan 2, 1996
Method for inhibiting wheel slip in an electric alternating current induction motor powered vehicle
GEN ELECTRIC86 citations96
US5323095AJun 21, 1994
Propulsion and electric braking system for electric traction motor vehicle
GEN ELECTRIC67 citations96
US5170105ADec 8, 1992
Method for determining operability of an electrical dynamic braking system
GEN ELECTRIC57 citations96
US6208097B1Mar 27, 2001
Traction vehicle adhesion control system without ground speed measurement
GEN ELECTRIC71 citations94
US5306972AApr 26, 1994
AC motor system
GEN ELECTRIC70 citations94
US5436540AJul 25, 1995
Protection circuit for a gate turn-off device in an electrical braking system for an electric traction motor vehicle
GEN ELECTRIC49 citations93
US5396214AMar 7, 1995
Dynamic braking grid resistor configuration for reducing EMI in an electric traction motor vehicle
GEN ELECTRIC34 citations93
US5245294ASep 14, 1993
Method for evaluating operability of filter components in power conversion system
GEN ELECTRIC27 citations93
US5208741AMay 4, 1993
Chopper circuit for dynamic braking in an electric power conversion system
GEN ELECTRIC27 citations93
US4695941ASep 22, 1987
Loss of electrical feedback detector
GEN ELECTRIC29 citations93
US7027900B2Apr 11, 2006
Enhanced locomotive adhesion control
GEN ELECTRIC20 citations92
US6163121ADec 19, 2000
Torque maximization and vibration control for AC locomotives
GEN ELECTRIC44 citations92
US5363039ANov 8, 1994
Auto self test of AC motor system
GEN ELECTRIC39 citations92
US5283507AFeb 1, 1994
Regenerative braking protection for an electrically-propelled traction vehicle
GEN ELECTRIC38 citations92
US5266891ANov 30, 1993
Auto self test of AC motor system
GEN ELECTRIC40 citations92
US5331261AJul 19, 1994
Regenerative braking protection for an electrically-propelled traction vehicle
GEN ELECTRIC47 citations90
US6600979B1Jul 29, 2003
Method and system for determining an inertially-adjusted vehicle reference speed
GEN ELECTRIC44 citations89
US6291987B1Sep 18, 2001
Method and system for detecting incipient failures in a power inverter
GEN ELECTRIC45 citations89
US4904918AFeb 27, 1990
Power conversion system including an improved filter for attenuating harmonics
GEN ELECTRIC53 citations89
US4634887AJan 6, 1987
Load rate limiting means for a locomotive engine
GEN ELECTRIC54 citations88
US7746604B2Jun 29, 2010
Method, system, and computer software code for detection and isolation of electrical ground failure and secondary failure
GEN ELECTRIC8 citations82
US7035065B2Apr 25, 2006
Electrical ground isolation and secondary failure reduction detection and isolation
GEN ELECTRIC13 citations82
US7548032B2Jun 16, 2009
Locomotive speed determination
GEN ELECTRIC16 citations79
US7557528B2Jul 7, 2009
System, method, and computer software code for detection and interchangeability of a motor
GEN ELECTRIC7 citations74
US5528486AJun 18, 1996
Firing pattern output generation for AC traction inverter control
GEN ELECTRIC15 citations74
US5414615AMay 9, 1995
Pattern generation control for inverter drives
GEN ELECTRIC12 citations74
US5345358ASep 6, 1994
Method for evaluating operability of filter components in power conversion system
GEN ELECTRIC9 citations74
US5117166AMay 26, 1992
Chopper circuit for dynamic braking in an electric power conversion system
GEN ELECTRIC12 citations74
US5057987AOct 15, 1991
Fault detection and protection strategy for a pair of complementary GTO thyristors
GEN ELECTRIC14 citations74
US4933624AJun 12, 1990
Electric power supply with controllable voltage boost
GEN ELECTRIC9 citations74
US4792788ADec 20, 1988
Position indicating system
GEN ELECTRIC16 citations74
US5229700AJul 20, 1993
Calibration of signal feedback through VCO's
GEN ELECTRIC10 citations73
US7329960B1Feb 12, 2008
System and method for propelling a large land-based vehicle using a dual function brushless dynamoelectric machine
GEN ELECTRIC2 citations63
US5521593AMay 28, 1996
Method and apparatus for monitoring operating characteristics of semiconductor electric power switching circuits
GEN ELECTRIC6 citations63
US7152888B2Dec 26, 2006
System and method for improved detection of locomotive friction modifying system component health and functionality
GEN ELECTRIC6 citations62
US7256974B2Aug 14, 2007
Electrical ground isolation and secondary failure reduction detection and isolation
GEN ELECTRIC4 citations61
US7208910B1Apr 24, 2007
Method for modifying baseline circuit architecture for a cycle-skipping control system including computer readable code and controller for performing such method
GEN ELECTRIC2 citations60
US6781808B2Aug 24, 2004
Method for detecting electrical faulty conditions in power devices of a propulsion system
GEN ELECTRIC4 citations60
US7350405B2Apr 1, 2008
Disturbance-resistant bumpless crankshaft position sensing
GEN ELECTRIC5 citations59
US7508159B2Mar 24, 2009
Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method
GEN ELECTRIC1 citations49
US7208911B1Apr 24, 2007
Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method
GEN ELECTRIC1 citations49
KUMAR AJITH K
3 patentsUS8280569B2Oct 2, 2012
Methods and systems for improved throttle control and coupling control for locomotive and associated train
KUMAR AJITH K24 citations91
US8538611B2Sep 17, 2013
Multi-level railway operations optimization system and method
KUMAR AJITH K18 citations81
US9120494B2Sep 1, 2015
System, method and computer software code for remotely assisted operation of a railway vehicle system
KUMAR AJITH K3 citations58