Inventor · disambiguated record
Steven J. Collier-Hallman
Also filed as: COLLIER-HALLMAN STEVEN J · COLLIER-HALLMAN STEVEN JAMES
34 granted patents·9 pending applications·1,302 citations·filing 1989–2024
98Inventor score
Files withDELPHI TECH INC16STEERING SOLUTIONS IP HOLDING15GEN MOTORS CORP7COLLIER-HALLMAN STEVEN J2GM GLOBAL TECH OPERATIONS INC1
Top patents by PatentIndex Score
43 records- 0197US6122579AElectric power steering control with torque ripple and road disturbance damperDELPHI TECH INC·Filed 1999·Granted Sep 19, 2000·129 cites·16 claims
- 0295US7721616B2Sprung gear set and methodGM GLOBAL TECH OPERATIONS INC·Filed 2006·Granted May 25, 2010·28 cites·13 claims
- 0394US6448724B1Apparatus and method for commutation noise reductionDELPHI TECH INC·Filed 2000·Granted Sep 10, 2002·65 cites·26 claims
- 0494US5668722AElectric power steering controlGEN MOTORS CORP·Filed 1995·Granted Sep 16, 1997·91 cites·5 claims
- 0594US5198981AClosed-loop torque control for electric power steeringGEN MOTORS CORP·Filed 1990·Granted Mar 30, 1993·87 cites·19 claims
- 0693US7306535B2Vehicle steering device and methodDELPHI TECH INC·Filed 2004·Granted Dec 11, 2007·51 cites·20 claims
- 0793US6826499B2Method and apparatus for calibrating and initializing an electronically commutated motorDELPHI TECH INC·Filed 2002·Granted Nov 30, 2004·68 cites·153 claims
- 0893US6408235B1End-of-travel impact management systemDELPHI TECH INC·Filed 2000·Granted Jun 18, 2002·64 cites·30 claims
- 0993US6002226ABrushless DC motor control method and apparatus for reduced commutation noiseGEN MOTORS CORP·Filed 1998·Granted Dec 14, 1999·91 cites·12 claims
- 1093US4893073AElectric circuit board current sensorGEN MOTORS CORP·Filed 1989·Granted Jan 9, 1990·87 cites·3 claims
- 1192US6900607B2Combined feedforward and feedback parameter estimation for electric machinesDELPHI TECH INC·Filed 2001·Granted May 31, 2005·80 cites·181 claims
- 1291US11892519B2Sinusoidal stimulus response for input power health diagnosticSTEERING SOLUTIONS IP HOLDING·Filed 2022·Granted Feb 6, 2024·2 cites·20 claims
- 1391US5982067ABrushless DC motor having reduced torque ripple for electric power steeringGEN MOTORS CORP·Filed 1996·Granted Nov 9, 1999·79 cites·4 claims
- 1490US7199549B2Feedback parameter estimation for electric machinesDELPHI TECH INC·Filed 2001·Granted Apr 3, 2007·49 cites·52 claims
- 1589US6498409B1Tachometer apparatus and method for motor velocity measurementDELPHI TECH INC·Filed 2000·Granted Dec 24, 2002·38 cites·66 claims
- 1689US6092618AElectro-hydraulic power steering control with fluid temperature and motor speed compensation of power steering load signalGEN MOTORS CORP·Filed 1997·Granted Jul 25, 2000·69 cites·9 claims
- 1787US11447175B2Steer ratio synchronization for steer-by-wire systemsSTEERING SOLUTIONS IP HOLDING·Filed 2020·Granted Sep 20, 2022·2 cites·20 claims
- 1884US7157878B2Transient compensation voltage estimation for feedforward sinusoidal brushless motor controlDELPHI TECH INC·Filed 2002·Granted Jan 2, 2007·34 cites·16 claims
- 1981US9975570B2Velocity signal filter with reduced lagSTEERING SOLUTIONS IP HOLDING·Filed 2014·Granted May 22, 2018·4 cites·21 claims
- 2081US7075290B2Tachometer apparatus and method for motor velocity measurementDELPHI TECH INC·Filed 2002·Granted Jul 11, 2006·31 cites·160 claims
- 2181US5967253AElectro-hydraulic power steering control with motor speed switching and fluid temperature compensation of standby switch-pointsGEN MOTORS CORP·Filed 1997·Granted Oct 19, 1999·46 cites·5 claims
- 2280US6791217B2Method and system for motor velocity measurementDELPHI TECH INC·Filed 2002·Granted Sep 14, 2004·21 cites·40 claims
- 2371US9531311B2Generation of a current reference to control a brushless motorSTEERING SOLUTIONS IP HOLDING·Filed 2013·Granted Dec 27, 2016·5 cites·18 claims
- 2471US6452405B1Method and apparatus for calibrating a current sensing systemDELPHI TECH INC·Filed 2000·Granted Sep 17, 2002·15 cites·17 claims
- 2566US12227235B2Stall thermal protection for force feedback actuatorSTEERING SOLUTIONS IP HOLDING·Filed 2022·Granted Feb 18, 2025·0 cites·20 claims
- 2666US6564131B2Four-wheel steering algorithm with functional and diagnostic states and modesDELPHI TECH INC·Filed 2001·Granted May 13, 2003·17 cites·16 claims
- 2766US6166502AThermal current limiting apparatus and method for vehicle system with electric motor actuatorDELPHI TECH INC·Filed 1999·Granted Dec 26, 2000·25 cites·8 claims
- 2865US8051945B2Electric power steering system, controller, and method of operationNEXTEER BEIJING TECH CO LTD·Filed 2009·Granted Nov 8, 2011·6 cites·18 claims
- 2957US12193161B2Redundant printed circuit board with built in isolationSTEERING SOLUTIONS IP HOLDING·Filed 2021·Granted Jan 7, 2025·0 cites·20 claims
- 3056US10173718B2Motor position filter for estimation of velocity using moving linear regressionSTEERING SOLUTIONS IP HOLDING·Filed 2014·Granted Jan 8, 2019·2 cites·17 claims
- 3156US2024359725A1Hand wheel actuator assembly with integrated belt driveSTEERING SOLUTIONS IP HOLDING·Filed 2024·Application pending·0 cites
- 3254US2024355539A1Header assembly with integrated choke for power packSTEERING SOLUTIONS IP HOLDING·Filed 2023·Application pending·0 cites
- 3354US2024195333A1Systems and methods for active damping in a steer-by-wire handwheel actuator systemSTEERING SOLUTIONS IP HOLDING·Filed 2023·Application pending·0 cites
- 3454US2023389183A1Non-symmetric single circuit board assembly with polytronics dielectric materialSTEERING SOLUTIONS IP HOLDING·Filed 2023·Application pending·0 cites
- 3553US6949901B1System and method for controlling a steering position of rear vehicle wheelsDELPHI TECH INC·Filed 2004·Granted Sep 27, 2005·9 cites·20 claims
- 3651US2024001986A1Systems and methods for passive damping in a steer-by-wire handwheel actuatorSTEERING SOLUTIONS IP HOLDING·Filed 2023·Application pending·0 cites
- 3751US2024227913A9Systems and methods for passive damping in a handwheel actuator using an auxiliary windingSTEERING SOLUTIONS IP HOLDING·Filed 2023·Application pending·0 cites
- 3849US2022169307A1Input power health diagnostic for electric power steeringSTEERING SOLUTIONS IP HOLDING·Filed 2021·Application pending·0 cites
- 3948US7190135B2Method of inverter linearization in electric machines through secondary modulationDELPHI TECH INC·Filed 2003·Granted Mar 13, 2007·7 cites·12 claims
- 4042US12149131B2Motor position sensing system for rotating electric machinesSTEERING SOLUTIONS IP HOLDING·Filed 2022·Granted Nov 19, 2024·0 cites·20 claims
- 4140US2010299100A1Methods and systems involving determining shaft velocityGM GLOBAL TECHNOLOGYOPERATIONS INC·Filed 2008·Application pending·0 cites
- 4238US8498781B2Methods and motor computer program products for motor control by the implementation of damping for over-speed conditionsCOLLIER-HALLMAN STEVEN J·Filed 2007·Granted Jul 30, 2013·0 cites·13 claims
- 4337US2008081718A1Load dependent belt tensionerCOLLIER-HALLMAN STEVEN J·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →