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

IPC: H02K11/20 ,  H02K1/27 ,  H02K1/12 ,  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.

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.

公开(公告)号：US20240178737A1

公开(公告)日：2024-05-30

申请号：US18432851

申请日：2024-02-05

Applicant: Beckhoff Automation GmbH

Inventor： Hans Beckhoff ,  Johannes Beckhoff ,  Jan Achterberg ,  Dominik Sensen ,  Lukas Bentfeld ,  Felix Schulte ,  Uwe Prüßmeier

IPC: H02K41/03 ,  H02K11/21

CPC classification number: H02K41/031 ,  H02K11/21 ,  H02K2201/18

Abstract: A planar drive system has at least one stator assembly with a plurality of coil groups for generating a stator magnetic field, a stator surface above the stator assembly, and first and second rotors. The rotors each have a plurality of magnet units for generating a rotor magnetic field. The rotors can be moved above the stator surface in first and second directions, with the aid of an interaction of the stator magnetic field with the rotor magnetic field. A connection can be formed between the rotors with the aid of a coupling device. A controller is arranged to output control signals to the stator assembly. The stator assembly is configured to energize the coil groups on the basis of the control signals so that movements of the rotors, coordinated with one another with respect to the coupling device, are carried out with the aid of the stator magnetic field.