Planar drive system

A method for operating a planar drive system comprising:

• at least one stator assembly having in each case a plurality of coil groups for generating a stator magnetic field,
• a stator surface above the stator assembly, and
• further comprising a first rotor and a second rotor;
• wherein the first rotor and the second rotor each comprise a plurality of magnet units for generating a rotor magnetic field,
• wherein the first rotor and the second rotor are moveable above the stator surface at least in a first direction and a second direction with the aid of an interaction of the stator magnetic field with the rotor magnetic field,
• wherein a coupling device is arranged between the first rotor and the second rotor,
• wherein with the aid of the coupling device a connection is established between the first rotor and the second rotor,
• wherein the planar drive system comprises a controller, the controller outputting control signals to the stator assembly, the stator assembly energizing the coil groups on the basis of the control signals such that mutually coordinated movements of the first rotor and of the second rotor are carried out with the aid of the stator magnetic field.

A planar drive system comprising:

• at least one stator assembly having in each case a plurality of coil groups for generating a stator magnetic field,
• a stator surface above the stator assembly, and
• further comprising a first rotor and a second rotor;
• wherein the first rotor and the second rotor each comprise a plurality of magnet units for generating a rotor magnetic field,
• wherein the first rotor and the second rotor are moveable above the stator surface at least in a first direction and a second direction with the aid of an interaction of the stator magnetic field with the rotor magnetic field,
• wherein a coupling device is arranged between the first rotor and the second rotor,
• wherein a connection is configurable between the first rotor and the second rotor with the aid of the coupling device,
• wherein the planar drive system comprises a controller, wherein the controller is configured to send control signals to the stator assembly, the stator assembly being configured to energize the coil groups on the basis of the control signals such that movements of the first rotor and of the second rotor coordinated with one another with respect to the coupling device are carried out with the aid of the stator magnetic field,
• wherein the stator assembly is arranged to energize the coil groups on the basis of the control signals such that the connection is releasable and configured to be formed again,
• wherein the controller is operable in a first operating mode and in a second operating mode, wherein in the first operating mode, based on coupling information, the control signals are output such that the connection of the first rotor and the second rotor is taken into account, and wherein in the second operating mode, based on decoupling information, the control signals are output such that the first rotor and the second rotor are moved individually,
• wherein determining the coupling information or the decoupling information, respectively, is carried out on the basis of the position of the first rotor and of the second rotor taking into account a dimension of the coupling device,
• wherein magnetic field sensors provided in the stator modules detect the magnetic fields of the magnet units of the first rotor and of the second rotor in order to detect the position of the first rotor and of the second rotor.