Inventor · disambiguated record
Jackson Wai
Also filed as: WAI JACKSON
40 granted patents·7 pending applications·156 citations·filing 2006–2024
97Inventor score
Top patents by PatentIndex Score
47 records- 0195US10079566B1Pulse injection current pattern for rotor position estimationCATERPILLAR INC·Filed 2017·Granted Sep 18, 2018·11 cites·20 claims
- 0291US10476421B1Optimized switched reluctance phase current control in a continuous conduction modeCATERPILLAR INC·Filed 2018·Granted Nov 12, 2019·36 cites·20 claims
- 0390US9800192B1Flux estimator for switched reluctance machinesCATERPILLAR INC·Filed 2016·Granted Oct 24, 2017·5 cites·20 claims
- 0485US10097117B2Adjustable pulse injection in electric machine controlCATERPILLAR INC·Filed 2016·Granted Oct 9, 2018·3 cites·20 claims
- 0585US9099882B2Turbine engine hybrid power supplyCATERPILLAR INC·Filed 2013·Granted Aug 4, 2015·11 cites·20 claims
- 0685US8610382B2Active high voltage bus bleed downGOLDAMMER TIMOTHY·Filed 2010·Granted Dec 17, 2013·20 cites·20 claims
- 0783US10666182B1System to control a rotary electric machineCATERPILLAR INC·Filed 2018·Granted May 26, 2020·3 cites·20 claims
- 0881US8004226B2Method and system for detecting a failed current sensor in a three-phase machineCATERPILLAR INC·Filed 2008·Granted Aug 23, 2011·13 cites·19 claims
- 0980US9941831B1Switched reluctance motor power estimation compensation for variable DC-link voltageCATERPILLAR INC·Filed 2017·Granted Apr 10, 2018·4 cites·20 claims
- 1080US8975855B2Compensating hysteresis bands to hold specified switching frequencyGERDES JESSE·Filed 2012·Granted Mar 10, 2015·5 cites·20 claims
- 1178US8866433B2Switched reluctance initial rotor position estimationCATERPILLAR INC·Filed 2012·Granted Oct 21, 2014·4 cites·17 claims
- 1276US7511449B2Electric motor system implementing vector and slip controlCATERPILLAR INC·Filed 2006·Granted Mar 31, 2009·11 cites·18 claims
- 1374US10938332B1Modified flux observer for switched reluctance machinesCATERPILLAR INC·Filed 2019·Granted Mar 2, 2021·1 cites·20 claims
- 1472US8901869B2Hybrid closed loop speed control using open look position for electrical machines controlsWAI JACKSON·Filed 2012·Granted Dec 2, 2014·3 cites·20 claims
- 1569US10193475B2Sensorless control of switched reluctance machines for low speeds and standstillCATERPILLAR INC·Filed 2015·Granted Jan 29, 2019·1 cites·10 claims
- 1669US9899946B2Sensorless control of switched reluctance machinesCATERPILLAR INC·Filed 2016·Granted Feb 20, 2018·1 cites·17 claims
- 1768US12374888B1Voltage source inverter control for unbalanced and nonlinear loadsCATERPILLAR INC·Filed 2024·Granted Jul 29, 2025·0 cites·20 claims
- 1868US8773056B2FPDA closed loop electric drives controlsGERDES JESSE·Filed 2012·Granted Jul 8, 2014·5 cites·32 claims
- 1966US12100943B2Current protection to prevent overcurrent in electrical grids and motorsCATERPILLAR INC·Filed 2022·Granted Sep 24, 2024·0 cites·21 claims
- 2066US9647595B2Current profile strategy for minimizing torque ripple and currentCATERPILLAR INC·Filed 2014·Granted May 9, 2017·2 cites·16 claims
- 2166US9391555B2System and method to control a switched reluctance machine in continuous conductionCATERPILLAR INC·Filed 2014·Granted Jul 12, 2016·3 cites·20 claims
- 2266US8624564B2Switched reluctance generator initial rotor position estimationHARTMAN MARK·Filed 2011·Granted Jan 7, 2014·2 cites·20 claims
- 2366US8624543B2Switching strategy for switched reluctance machineKHALIL AHMED·Filed 2011·Granted Jan 7, 2014·3 cites·16 claims
- 2465US12142922B2Techniques for limiting power using an active front endCATERPILLAR INC·Filed 2022·Granted Nov 12, 2024·0 cites·20 claims
- 2564US9702938B2Method and apparatus for detecting phase imbalance of an electrical component in a machineCATERPILLAR INC·Filed 2015·Granted Jul 11, 2017·1 cites·17 claims
- 2662US11811344B2System and method of overcoming a dead-band in a switched reluctance motorCATERPILLAR INC·Filed 2020·Granted Nov 7, 2023·0 cites·18 claims
- 2759US2025192555A1Grid firming inverter for fast voltage support in microgridCATERPILLAR INC·Filed 2023·Application pending·0 cites
- 2857US8746382B2Switched reluctance generator priming strategyWAI JACKSON·Filed 2010·Granted Jun 10, 2014·1 cites·9 claims
- 2956US11545922B2Power based pulse injection control for SR self sensingCATERPILLAR INC·Filed 2021·Granted Jan 3, 2023·0 cites·20 claims
- 3056US9099954B2Enforced zero voltage loopCATERPILLAR INC·Filed 2013·Granted Aug 4, 2015·1 cites·20 claims
- 3154US11515824B2Switched reluctance self sensing active pulse torque compensationCATERPILLAR INC·Filed 2020·Granted Nov 29, 2022·0 cites·20 claims
- 3254US8242735B2Method and system for temperature-based power converter controlHEIN BRUCE H·Filed 2008·Granted Aug 14, 2012·4 cites·14 claims
- 3352US10715052B2Inverter topologyCATERPILLAR INC·Filed 2018·Granted Jul 14, 2020·0 cites·21 claims
- 3452US7679311B2System and method for dynamic field weakeningCATERPILLAR INC·Filed 2007·Granted Mar 16, 2010·2 cites·8 claims
- 3551US10897217B2Switched reluctance motor control systemCATERPILLAR INC·Filed 2018·Granted Jan 19, 2021·0 cites·20 claims
- 3651US2015381087A1Sensorless Control of Switched Reluctance Machines for Low Speeds and StandstillCATERPILLAR INC·Filed 2014·Application pending·0 cites
- 3749US12431814B2Capacitor voltage balancing techniques for multi-level dual active bridge converterCATERPILLAR INC·Filed 2023·Granted Sep 30, 2025·0 cites·18 claims
- 3849US9738163B2Electric drive having an actively controlled DC busCATERPILLAR INC·Filed 2014·Granted Aug 22, 2017·0 cites·20 claims
- 3949US9340113B2Switched reluctance generator integrated controlsCATERPILLAR INC·Filed 2015·Granted May 17, 2016·0 cites·20 claims
- 4049US2024079870A1Techniques for transitioning between control modes of an active front end unitCATERPILLAR INC·Filed 2022·Application pending·0 cites
- 4145US8970291B1Method of debouncing a variable frequency step signalCATERPILLAR INC·Filed 2013·Granted Mar 3, 2015·0 cites·1 claims
- 4242US8975878B2Switched reluctance generator integrated controlsWAI JACKSON·Filed 2010·Granted Mar 10, 2015·0 cites·9 claims
- 4342US8901760B2Dual generator single DC link configuration for electric drive propulsion systemCATERPILLAR INC·Filed 2013·Granted Dec 2, 2014·0 cites·19 claims
- 4434US2013154535A1Lockout switching strategy for preventing high voltage transitionWAI JACKSON·Filed 2011·Application pending·0 cites
- 4532US2016301347A1Hybrid Hard Chopping and Soft Chopping Current RegulationCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 4632US2013134912A1Switched Reluctance Machine Natural Transition between Current Regulation and Single Pulse OperationKHALIL AHMED·Filed 2011·Application pending·0 cites
- 4731US2016248362A1Hybrid Soft Switching for Current Regulation in Switched Reluctance MachinesCATERPILLAR INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →