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公开(公告)号：US12160141B2
公开(公告)日：2024-12-03
申请号：US17903429
申请日：2022-09-06
Applicant: Beckhoff Automation GmbH
Inventor： Lukas Bentfeld , Klaus Neumann , Keir Maguire , Dominik Sensen , Tim Kaulmann
IPC: H02P25/06 , B65G54/02 , G01D5/14 , G05D3/12 , H02K1/12 , H02K1/27 , H02K11/20 , H02K11/215 , H02K29/08 , H02K41/03 , H02P23/00 , H02P23/14 , H02P29/60
Abstract: A method for controlling a planar drive system includes determining values of magnetic stator fields for different energizing currents and spatial regions in a two-dimensional array of magnetic field sensors, generating at least one magnetic stator field by applying energizing currents to stator conductors to electrically control a rotor, determining measured values of a total magnetic field via the magnetic field sensors for a plurality of the spatial regions to determine a position of the rotor, compensating contributions of the magnetic stator fields to the measured values of the total magnetic field determined by the magnetic field sensors, generating measured values of the magnetic field determined by the respective magnetic field sensors for the respective space regions, and determining a position of the rotor based on the generated measured values of the magnetic fields. The planar drive system includes at least a controller, a stator module, and a rotor.
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Patent Agency Ranking
公开(公告)号：US12088168B2
公开(公告)日：2024-09-10
申请号：US17900339
申请日：2022-08-31
Applicant: Beckhoff Automation GmbH
Inventor： Klaus Neumann , Lukas Bentfeld , Keir Maguire , Tim Kaulmann , Benjamin Jurke
IPC: H02K41/03 , H02K11/215 , H02P23/00
CPC classification number: H02K41/031 , H02K11/215 , H02P23/0018 , H02K2213/03
Abstract: A method for controlling a planar drive system includes generating a position allocating function, in an allocation generating step; measuring a plurality of measuring values of the magnetic rotor field by magnetic field sensors for a position of the rotor relative to the stator module, in a magnetic rotor field determining step; applying the position determination function to the plurality of measuring values of the magnetic rotor field of the plurality of magnetic field sensors, in a measuring value analysis step; and determining the position of the rotor relative to the stator module on the basis of the measurements of the magnetic rotor field measured by the plurality of magnetic field sensors and based on the allocations of the position allocating function, in a position determining step. The application further relates to such a planar drive system.
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公开(公告)号：US20240391712A1
公开(公告)日：2024-11-28
申请号：US18792681
申请日：2024-08-02
Applicant: Beckhoff Automation GmbH
Inventor： Lukas Bentfeld , Johannes Beckhoff , Felix Schulte , Uwe Prüssmeier , Keir Maguire
Abstract: The invention relates to a planar drive system comprising at least a stator assembly with a plurality of coil groups for generating a stator magnetic field, a stator surface above the stator assembly, and a rotor. The rotor comprises a plurality of magnet assemblies for generating a rotor magnetic field. In a first operating state, the rotor can be moved above the stator surface in parallel to the stator surface with the aid of an interaction of the stator magnetic field with the rotor magnetic field. In a second operating state, the rotor is at least restricted in its ability to move in parallel to and perpendicularly with regard to the stator surface by a safety system.
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公开(公告)号：US20230006530A1
公开(公告)日：2023-01-05
申请号：US17900339
申请日：2022-08-31
Applicant: Beckhoff Automation GmbH
Inventor： Klaus Neumann , Lukas Bentfeld , Keir Maguire , Tim Kaulmann , Benjamin Jurke
IPC: H02K41/03 , H02K11/215 , H02P23/00
Abstract: A method for controlling a planar drive system includes generating a position allocating function, in an allocation generating step; measuring a plurality of measuring values of the magnetic rotor field by magnetic field sensors for a position of the rotor relative to the stator module, in a magnetic rotor field determining step; applying the position determination function to the plurality of measuring values of the magnetic rotor field of the plurality of magnetic field sensors, in a measuring value analysis step; and determining the position of the rotor relative to the stator module on the basis of the measurements of the magnetic rotor field measured by the plurality of magnetic field sensors and based on the allocations of the position allocating function, in a position determining step. The application further relates to such a planar drive system.
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公开(公告)号：US20230283212A1
公开(公告)日：2023-09-07
申请号：US18315747
申请日：2023-05-11
Applicant: Beckhoff Automation GmbH
Inventor： Irina Stockem , Viktor Balzer , Keir Maguire , Xiaodong Zhang
IPC: H02P25/064 , H02K41/03
CPC classification number: H02P25/064 , H02K41/031 , H02K2201/18
Abstract: A method for controlling a planar drive system with a stator unit and a rotor includes moving the rotor to a rotational position on the stator unit. In the rotational position, each magnet unit of the rotor covers a coil group of the stator unit which is not covered by any other magnet unit of the rotor, in each orientation of the rotor relative to the stator unit. The method includes actuating the coil groups which are covered by the magnet units of the rotor in the rotational position, generating a stator magnetic field by each actuated coil group, and rotating the rotor about an axis oriented perpendicular to a surface of the stator unit by a predetermined angle, by way of the stator magnetic fields of the actuated coil groups covered by the magnet units of the rotor. A planar drive system is adapted to perform the method.
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公开(公告)号：US20230006517A1
公开(公告)日：2023-01-05
申请号：US17903429
申请日：2022-09-06
Applicant: Beckhoff Automation GmbH
Inventor： Lukas Bentfeld , Klaus Neumann , Keir Maguire , Dominik Sensen , Tim Kaulmann
Abstract: A method for controlling a planar drive system includes determining values of magnetic stator fields for different energizing currents and spatial regions in a two-dimensional array of magnetic field sensors, generating at least one magnetic stator field by applying energizing currents to stator conductors to electrically control a rotor, determining measured values of a total magnetic field via the magnetic field sensors for a plurality of the spatial regions to determine a position of the rotor, compensating contributions of the magnetic stator fields to the measured values of the total magnetic field determined by the magnetic field sensors, generating measured values of the magnetic field determined by the respective magnetic field sensors for the respective space regions, and determining a position of the rotor based on the generated measured values of the magnetic fields. The planar drive system includes at least a controller, a stator module, and a rotor.
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