Abstract:
A linear transport system comprises a first carriage and a second carriage, a linear motor for driving the first carriage and the second carriage and a guide rail. The linear motor comprises a stator and a first and a second rotor. The stator has a plurality of drive coils that are arranged along the guide rail individual motor modules comprise a plurality of drive coils. The first rotor is arranged on the first carriage and the second rotor is arranged on the second carriage. The first carriage has a first magnetic field generator. The second carriage has a second magnetic field generator. The first magnetic field generator differs from the second magnetic field generator at least in terms of its magnetic vector field, wherein the magnetic fields of the magnetic field generators are detected to identify the corresponding carriage.
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.
Abstract:
An inductive energy-transmitting device is provided in a linear transport system in which at least one magnetically driven carriage moves along a carriage guide including a motor module device. The inductive energy-transmitting device includes an energy-transmitting coil having a primary winding for applying an input voltage and an energy-receiving coil having a secondary winding for tapping an output voltage. The secondary winding of the energy-receiving coil has a control-voltage-winding portion and a load-voltage-winding portion, the control-voltage-winding portion and the load-voltage-winding portion including winding conductor tracks separate from each other. In this context, the control-voltage-winding portion provides a control voltage for tapping by a carriage guide controller on the carriage, and the load-voltage-winding portion provides a load voltage for tapping by a load on the carriage
Abstract:
A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one field coil and at least one secondary coil associated with the field coil, wherein an electrical excitation pulse is applied to the field coil in order to induce an electrical voltage in the secondary coil, a secondary coil voltage is measured and the position of the movable element is determined on the basis of the measured secondary coil voltage. The invention also relates to a position detection apparatus and/or a drive apparatus.
Abstract:
A planar drive system includes a stator module and a rotor. The stator module has a stator assembly with at least one coil arrangement that can be energized to generate a stator magnetic field above a stator surface, and a magnetic field sensor. The rotor has a magnet arrangement and can be moved above the stator surface via interaction between the stator magnetic field the magnet arrangement. The rotor can be used as an input device or output device, or both. A controller can compare the position of the rotor magnetic field detected with the sensor to the position expected based on energization of the coil arrangement, to determine any deviation of the expected position as an external movement, and to recognize an input thereby. The controller can control an output via a predetermined movement of the rotor, and to energize the coil arrangement so the rotor moves as defined.
Abstract:
This application provides a method for controlling a planar drive system, where the planar drive system comprises at least a controller, a stator module having a stator surface, and a rotor that may is positionable and movable on the stator surface. The method comprises positioning an object on a rotor in a first arrangement state of the object in a positioning step, carrying out an accelerating movement of a defined movement pattern of the rotor; and, by the accelerating movement, arranging the object positioned on the rotor in the first arrangement state in a second arrangement state relative to the rotor, in an arranging step. The application further provides a planar drive system.
Abstract:
A stator device for a linear motor comprises an electrically energizable magnetic field generator for forming a magnetic field, the magnetic field generator comprising a stator tooth and a coil wound around the stator tooth and a holding module for holding the magnetic field generator, the holding module having a first and a second holding device, wherein the magnetic field generator is arranged between the two holding devices in that a first end of the stator tooth is fixed to the first holding device and a second end of the stator tooth is fixed to the second holding device.
Abstract:
A control system for an electric motor comprising a stator having a plurality of stator coils and a rotor movable along the stator comprises a position detection device and a coil monitoring device. In this case, the position detection device is designed to generate position data representing a position of the rotor along the stator, and the coil monitoring device is designed to generate coil data representing a status of one or a plurality of the stator coils. The control system furthermore comprises a safety device designed to carry out a coordination between the coil data and the position data. Moreover, the safety device is designed to cause the electric motor to be transferred to a safe state if an error has been discovered during the coordination.
Abstract:
A method for detecting a position of a movable element of a drive apparatus by means of a position detection apparatus comprising at least one field coil and at least one secondary coil associated with the field coil, wherein an electrical excitation pulse is applied to the field coil in order to induce an electrical voltage in the secondary coil, a secondary coil voltage is measured and the position of the movable element is determined on the basis of the measured secondary coil voltage. The invention also relates to a position detection apparatus and/or a drive apparatus.
Abstract:
A method for transmitting energy from a stationary unit of a linear transport system to a movable unit of the linear transport system. The linear transport system includes a movable unit and at least one further movable unit, a guide rail and a linear motor. The movable units include energy-transmitting coils. The following steps are carried out by a controller: determining that the movable unit requires an amount of energy to carry out an application that cannot be provided via energy transmission between energy-transmitting coils of at least one stationary unit to the at least one energy-receiving coil, and outputting control signals to at least one stationary unit for positioning the further movable unit in a transmission position on the guide rail immediately in front of or behind the movable unit, and for coupling energy-transmitting elements of the further movable unit to energy-transmitting elements of the movable unit.