Patents by Inventor Grzegorz Ombach
Grzegorz Ombach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10804743Abstract: The present disclosure describes techniques for estimating or measuring changes in peak magnetic flux levels based on the influence of a receive coil to the overall flux density over a transmit coil. The estimated or measured changes in peak magnetic flux levels are used to adjust currents in the coils to reduce the flux density while maintaining sufficient power transfer. In some aspects, an apparatus for controlling power transfer is provided. The apparatus includes a controller configured to receive or determine a measured or estimated magnetic flux level on or outside a housing configured to house a transmit coil. The controller is further configured to determine an electrical current level for at least one or both of the transmit coil or a receive coil that reduces a peak magnetic flux density level in proximity to the transmit coil based on the measured or estimated magnetic flux level.Type: GrantFiled: November 8, 2017Date of Patent: October 13, 2020Assignee: WiTricity CorporationInventors: Nicholas Athol Keeling, Grzegorz Ombach, Edward Van Boheemen
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Publication number: 20190140481Abstract: The present disclosure describes techniques for estimating or measuring changes in peak magnetic flux levels based on the influence of a receive coil to the overall flux density over a transmit coil. The estimated or measured changes in peak magnetic flux levels are used to adjust currents in the coils to reduce the flux density while maintaining sufficient power transfer. In some aspects, an apparatus for controlling power transfer is provided. The apparatus includes a controller configured to receive or determine a measured or estimated magnetic flux level on or outside a housing configured to house a transmit coil. The controller is further configured to determine an electrical current level for at least one or both of the transmit coil or a receive coil that reduces a peak magnetic flux density level in proximity to the transmit coil based on the measured or estimated magnetic flux level.Type: ApplicationFiled: November 8, 2017Publication date: May 9, 2019Inventors: Nicholas Athol KEELING, Grzegorz OMBACH, Edward VAN BOHEEMEN
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Patent number: 9735605Abstract: An apparatus and method for detecting a condition within a wireless charging field are described. In one implementation, an apparatus comprises a wireless power receiver configured to receive wireless charging power from a wireless power charging transmitter. The apparatus further comprises a first sensor circuit that is at least partially disposed within a ground surface, the first sensor being operationally coupled to and configured to be charged or powered by the wireless power receiver. The first sensor is further configured to detect the condition.Type: GrantFiled: June 17, 2014Date of Patent: August 15, 2017Assignee: QUALCOMM IncorporatedInventors: Alberto Garcia Briz, Andrew M. Gilbert, Grzegorz Ombach
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Patent number: 9712008Abstract: The invention relates to a permanent magnet synchronous motor, in particular an electric three phase motor, comprising a stator in which stator teeth with interposed stator grooves are arranged, at least one winding made of an electrically conductive material being provided on each stator tooth, further comprising a rotor with permanent magnets which are arranged radially in a spoke-like manner in the rotor. Said synchronous motor has a predetermined and defined maximum brake torque based on a predetermined diameter-length-ratio of the rotor, a number of rotor poles and a number of stator grooves. The present invention further relates to an electric power-assisted steering system.Type: GrantFiled: July 11, 2013Date of Patent: July 18, 2017Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditsellschaft, WurzburgInventors: Grzegorz Ombach, Horst Steegmuller, Wojciech Chlebosz
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Patent number: 9533589Abstract: In a particular embodiment, a wireless power receiver apparatus includes a coil configured to wirelessly receive power via a magnetic field generated by a transmitter. The wireless power receiver apparatus can include a housing that includes a first volume configured to house the coil. The housing can also include a second volume configured to house electronic components. The second volume can be bound by a horizontal shielding member along a first portion of the second volume. The horizontal shielding member can define a horizontal shielding member plane substantially parallel to a plane defined by the coil. The second volume can also be bounded by a vertical shielding member along a second portion of the second volume. The vertical shielding member can define a vertical shielding member plane substantially orthogonal to the plane defined by the coil.Type: GrantFiled: April 14, 2014Date of Patent: January 3, 2017Assignee: QUALCOMM IncorporatedInventors: Alberto Garcia Briz, Grzegorz Ombach, Milenko Stamenic, Edward Van Boheemen, Stefan Raabe, Michael Werner
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Patent number: 9505315Abstract: A wireless power transfer system for selectively disabling a transmit antenna of a plurality of transmit antennas when a foreign object is detected is described. The system comprises a first transmit antenna configured to charge an electric vehicle positioned over a charging region via a first area of the charging region and also comprises a second transmit antenna configured to charge via a second area of the charging region. The system further comprises a controller circuit configured to selectively disable the first transmit antenna when a foreign object is detected in a first space that affects charging via the first area of the charging region. The controller circuit is further configured to selectively maintain activation of the second transmit antenna while the electric vehicle is positioned to receive power from the second transmit antenna via the second area when the foreign object is detected in the first space.Type: GrantFiled: August 4, 2014Date of Patent: November 29, 2016Assignee: QUALCOMM IncorporatedInventors: Alberto Garcia Briz, Grzegorz Ombach
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Patent number: 9461512Abstract: The present invention relates to an electric machine, in particular a brushless permanent magnet motor, provided with a rotor and a stator which has a plurality of teeth with winding phases provided thereon, wherein each winding phase has at least four windings, wherein, of the at least four windings of a winding phase, in each case two windings are connected in series with one another, and wherein these windings which are connected in series are connected in parallel. The present invention also relates to a steering device.Type: GrantFiled: March 24, 2011Date of Patent: October 4, 2016Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WürzburgInventors: Grzegorz Ombach, Jacek Junak
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Publication number: 20160031332Abstract: A wireless power transfer system for selectively disabling a transmit antenna of a plurality of transmit antennas when a foreign object is detected is described. The system comprises a first transmit antenna configured to charge an electric vehicle positioned over a charging region via a first area of the charging region and also comprises a second transmit antenna configured to charge via a second area of the charging region. The system further comprises a controller circuit configured to selectively disable the first transmit antenna when a foreign object is detected in a first space that affects charging via the first area of the charging region. The controller circuit is further configured to selectively maintain activation of the second transmit antenna while the electric vehicle is positioned to receive power from the second transmit antenna via the second area when the foreign object is detected in the first space.Type: ApplicationFiled: August 4, 2014Publication date: February 4, 2016Inventors: Alberto Garcia Briz, Grzegorz Ombach
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Publication number: 20150364944Abstract: An apparatus and method for detecting a condition within a wireless charging field are described. In one implementation, an apparatus comprises a wireless power receiver configured to receive wireless charging power from a wireless power charging transmitter. The apparatus further comprises a first sensor circuit that is at least partially disposed within a ground surface, the first sensor being operationally coupled to and configured to be charged or powered by the wireless power receiver. The first sensor is further configured to detect the condition.Type: ApplicationFiled: June 17, 2014Publication date: December 17, 2015Inventors: Alberto Garcia Briz, Andrew M. Gilbert, Grzegorz Ombach
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Publication number: 20150207370Abstract: The invention relates to a permanent magnet synchronous motor, in particular an electric three phase motor, comprising a stator in which stator teeth with interposed stator grooves are arranged, at least one winding made of an electrically conductive material being provided on each stator tooth, further comprising a rotor with permanent magnets which are arranged radially in a spoke-like manner in the rotor. Said synchronous motor has a predetermined and defined maximum brake torque based on a predetermined diameter-length-ratio of the rotor, a number of rotor poles and a number of stator grooves. The present invention further relates to an electric power-assisted steering system.Type: ApplicationFiled: July 11, 2013Publication date: July 23, 2015Inventors: Grzegorz Ombach, Horst Steegmuller, Wojciech Chlebosz
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Publication number: 20150022142Abstract: In a particular embodiment, a wireless power receiver apparatus includes a coil configured to wirelessly receive power via a magnetic field generated by a transmitter. The wireless power receiver apparatus can include a housing that includes a first volume configured to house the coil. The housing can also include a second volume configured to house electronic components. The second volume can be bound by a horizontal shielding member along a first portion of the second volume. The horizontal shielding member can define a horizontal shielding member plane substantially parallel to a plane defined by the coil. The second volume can also be bounded by a vertical shielding member along a second portion of the second volume. The vertical shielding member can define a vertical shielding member plane substantially orthogonal to the plane defined by the coil.Type: ApplicationFiled: April 14, 2014Publication date: January 22, 2015Applicant: QUALCOMM IncorporatedInventors: Alberto Garcia Briz, Grzegorz Ombach, Milenko Stamenic, Edward Van Boheemen, Stefan Raabe, Michael Werner
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Patent number: 8841813Abstract: A brushless synchronous motor includes a rotor having a number n of embedded permanent magnets and being rotatable relative to a stator having a number of stator teeth provided with a three-phase stator winding, while forming an air gap. An angle between two adjacent permanent magnets is 360°/n where n>8, an angle between two adjacent stator teeth is 360°/n+2, and an inner contour of the stator facing the rotor has a curved structure with curvature valleys provided at ends of the stator teeth.Type: GrantFiled: April 2, 2012Date of Patent: September 23, 2014Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WuerzburgInventors: Jacek Junak, Grzegorz Ombach
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Patent number: 8614532Abstract: The present invention relates to a permanent-magnet synchronous motor, particularly an electric three-phase motor, comprising a stator having a stator yoke in which stator teeth with interposed stator grooves are arranged, wherein on each stator tooth at least one winding is provided, further comprising a rotor having permanent magnets, wherein the stator teeth are arranged in layers as disks in the axial direction of the stator and designed at least as two different disks, wherein the stator teeth in a first disk are connected peripherally among each other at the ends thereof pointing toward the rotor in the form of a stator star by a connecting bridge and in a second disk have an interruption instead of the connecting bridge. The present invention further relates to an electric power-assisted steering system.Type: GrantFiled: September 14, 2009Date of Patent: December 24, 2013Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WurzburgInventors: Grzegorz Ombach, Jacek Junak, Horst Steegmueller
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Publication number: 20130214630Abstract: The present invention relates to an electric machine, in particular a brushless permanent magnet motor, provided with a rotor and a stator which has a plurality of teeth with winding phases provided thereon, wherein each winding phase has at least four windings, wherein, of the at least four windings of a winding phase, in each case two windings are connected in series with one another, and wherein these windings which are connected in series are connected in parallel. The present invention also relates to a steering device.Type: ApplicationFiled: March 24, 2011Publication date: August 22, 2013Inventors: Grzegorz Ombach, Jacek Junak
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Publication number: 20120256514Abstract: A brushless synchronous motor includes a rotor having a number n of embedded permanent magnets and being rotatable relative to a stator having a number of stator teeth provided with a three-phase stator winding, while forming an air gap. An angle between two adjacent permanent magnets is 360°/n where n>8, an angle between two adjacent stator teeth is 360°/n+2, and an inner contour of the stator facing the rotor has a curved structure with curvature valleys provided at ends of the stator teeth.Type: ApplicationFiled: April 2, 2012Publication date: October 11, 2012Applicant: BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFTInventors: Jacek Junak, Grzegorz Ombach
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Publication number: 20120098376Abstract: The present invention relates to a permanent-magnet synchronous motor, particularly an electric three-phase motor, comprising a stator having a stator yoke in which stator teeth with interposed stator grooves are arranged, wherein on each stator tooth at least one winding is provided, further comprising a rotor having permanent magnets, wherein the stator teeth are arranged in layers as disks in the axial direction of the stator and designed at least as two different disks, wherein the stator teeth in a first disk are connected peripherally among each other at the ends thereof pointing toward the rotor in the form of a stator star by a connecting bridge and in a second disk have an interruption instead of the connecting bridge. The present invention further relates to an electric power-assisted steering system.Type: ApplicationFiled: September 14, 2009Publication date: April 26, 2012Applicant: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WurzburgInventors: Grzegorz Ombach, Jacek Junak, Horst Steegmueller
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Patent number: 8008824Abstract: An electric motor (1) has a stator (3), a rotor (2) and a number of permanent magnets (6). The use of permanent magnets (6) having a cuboidal shape, without impairing performance. The stator (3) has a number of permanent magnets (6) having a cuboidal shape, which are embedded in recesses (7) and whose axial length (8) is greater than the axial length (4) of the stator (3).Type: GrantFiled: January 16, 2007Date of Patent: August 30, 2011Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, WuerzburgInventors: Ansgar Ackva, Jacek Junak, Grzegorz Ombach
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Publication number: 20090160280Abstract: An electric motor with a small diameter can be provided with a stator with a comparatively small radial thickness which has the material volume required to conduct the magnetic flux. To this end, an electric motor (1) with a stator (3), has a laminated core (8) and a number of permanent magnets (6) and a rotor (2), which co-operates with the stator (3) and can rotate about a rotational axis (5). The stator (3) has a number of flux propagation elements (31), which together with the laminated core (8) are designed to conduct the magnetic flux and whose axial length (32) is greater than the axial length (4) of the laminated core (8).Type: ApplicationFiled: January 16, 2007Publication date: June 25, 2009Inventors: Ansgar Ackva, Jacek Junak, Grzegorz Ombach
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Patent number: 7535146Abstract: A brushless synchronous machine is energized by permanent magnets with a stator and a rotor. The rotor is supported within the stator to allow rotation. The rotor has a plurality of cutouts into which permanent magnets are embedded. An air gap is provided between the stator and the rotor. The outer contour of the rotors is formed such that the electromagnetic force induced by the individual stator tooth winding has a trapezoidal characteristic. The maximum value of the electromagnetic force is present uninterrupted in an electrical angle range of 30° to 90°.Type: GrantFiled: July 19, 2006Date of Patent: May 19, 2009Inventors: Ansgar Ackva, Grzegorz Ombach
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Publication number: 20090102303Abstract: An electric motor (1) has a stator (3), a rotor (2) and a number of permanent magnets (6). The use of permanent magnets (6) having a cuboidal shape, without impairing performance. The stator (3) has a number of permanent magnets (6) having a cuboidal shape, which are embedded in recesses (7) and whose axial length (8) is greater than the axial length (4) of the stator (3).Type: ApplicationFiled: January 16, 2007Publication date: April 23, 2009Inventors: Ansgar Ackva, Jacek Junak, Grzegorz Ombach