Abstract:
A system for controlling an electric motor which includes three coils and a rotor, comprising a motion-profile-generator for generating a rotor-motion-profile and for producing a position-command, a position-controller for determining a velocity-command and a position-feedforward, for determining a forward-velocity according to the prediction of the velocity required to reach said posit ton-command. The system further includes a first summer for producing a modified velocity, a velocity controller, for determining a current-command, a velocity feedforward, for determining a forward-current and a second summer for producing a modified-current. The system also includes a commutator, for determining respective modified-coil-currents for each of at least three current-control-loops and for dividing said modified-coil-currents between the said current-control-loops according to the position of said rotor. Each current-control-loop includes a current-controller, for determining a respective voltage-command for the respective coil thereof an h-bridge for providing said voltage command to the respective coil thereof.
Abstract:
An automation and motion control system for theatrical objects, such as theatrical props, cameras, stunt persons, lighting, scenery, drapery or other similar types of devices or items, is provided to coordinate the movement of the objects on a large scale and/or to control the operation of the objects.
Abstract:
Bei einem Automatisierungssystem zur Bewegungsführung ist die Bewegungsführung zu verbessern. Dafür werden bei dem Automatisierungssystem zur Bewegungsführung Profile (P) zur Bewegungsführung über Funktionen frei definiert. Für die Funktionen werden Polynominterpolationen oder Splineinterpolationen verwendet. Bei diesem Verfahren sind Interpolation höheren Grades vorgesehen. Das Profil (P) zur Bewegungsführung weist eine Leitgrösse (L) und eine Folgegrösse(F) auf, wobei zumindest eine der Grössen z.B. eine zeitabhängige Grösse oder eine ortsabhängige Grösse ist.
Abstract:
The system comprises a plurality of load actuators for moving one or more loads, an interface for receiving commands related to a desired behaviour of at least one load, and a processor. The processor sends control signals to the load actuators to move the load according to the desired trajectory or destination.
Abstract:
A method and apparatus for forming a tooth and gullet formation or combination for the teeth (2) of a cutter tool such as a saw blade (1), by displacing a tool (8) for machining the tooth or gullet combination in such manner that a tooth front face (3), the gullet (5) thereof, the rear face (6) and the top face (7) of an immediately adjacent tooth (2) are machined, characterised by using a computer system (51-68) to control the displacements of the tool (8) so that the tooth gullet formation is machined according to predetermined machining profiles by controlling the operational displacements of the tool (8) to follow a predetermined path (19) with respect to the saw blade (1) whereby said tooth and gullet formation is machined according to the selected machining profile. The computer system (51-68) includes input means (60, 61) for establishing a plurality of different machining profiles for said tool displacement path (19) and means (51) for storing such profiles. The computer system includes input storage means (58, 59) for storing data associated with required displacements of the slide and support unit to produce a required grinding profile. The computer system (51-68) includes input storage means (60, 61) for storing data associated with operational speeds for the tool. The computer system (51-68) includes input storage means (54) for storing data associated with the operational characteristics of the tool (8).
Abstract:
Die Erfindung betrifft ein Verfahren und eine Steuereinrichtung (8) zur Bewegungsführung eines bewegbaren Maschinenelements (9) einer Maschine mit folgenden auf der Steuereinrichtung (8) ablaufenden Verfahrensschritten a) Eingabe einer von dem Maschinenelement (9) durchzuführen den Verfahrbewegung (X v ) und eines Optimierungskriteriums (OpK) , b) Bestimmung eines Bewegungsprofils (X sollk (t)) anhand der vom Maschinenelement (9) durchzuführenden Verfahrbewegung und des Optimierungskriteriums (OpK) , c) Bestimmung einer Lagesollgröße (X soll (n)) mittels des Be wegungsprofils (X sollk (t)), d) Ausgabe der Lagesollgröße (X soll (n)) an eine Regelung (6) zur Durchführung der Verfahrbewebung des Maschinenelements (9) . Die Erfindung schafft ein einfaches Verfahren und eine einfache Steuereinrichtung (8) zur optimierten Bewegungsführung eines bewegbaren Maschinenelements (9) einer Maschine, bei der ein Anwender direkt die Optimierung der Bewegungsführung beeinflussen kann.
Abstract:
A control system for a member driven by the pneumatic piston and cylinder (15) under the control of a solenoid driven proportional pneumatic valve (16) which receives valve command signals from a servo control card (32) which includes a microprocessor and a memory, the card repetitively calculating acceleration-limited values for the command signals on the basis of an algorithm and a motion profile stored in the memory, the values used in computing the algorithm being derived from transducers (25, 26, 27) which sense the pressures of opposite sides of the piston and the position of the driven member.
Abstract:
A system for controlling an electric motor which includes three coils and a rotor, comprising a motion-profile-generator for generating a rotor-motion-profile and for producing a position-command, a position-controller for determining a velocity-command and a position-feedforward, for determining a forward-velocity according to the prediction of the velocity required to reach said posit ton-command. The system further includes a first summer for producing a modified velocity, a velocity controller, for determining a current-command, a velocity feedforward, for determining a forward-current and a second summer for producing a modified-current. The system also includes a commutator, for determining respective modified-coil-currents for each of at least three current-control-loops and for dividing said modified-coil-currents between the said current-control-loops according to the position of said rotor. Each current-control-loop includes a current-controller, for determining a respective voltage-command for the respective coil thereof an h-bridge for providing said voltage command to the respective coil thereof.
Abstract:
An automation and motion control system for theatrical objects, such as theatrical props, cameras, stunt persons, lighting, scenery, drapery or other similar types of devices or items, is provided to coordinate the movement of the objects on a large scale and/or to control the operation of the objects.
Abstract:
A control system is described for controlling the movement of a plunger for use in forming parisons in a glassware manufacturing machine in which the plunger is driven between first and second positions by a pneumatic piston and cylinder device in which pressure sensors sense the pressure on opposite sides of the piston. An electronic signal processing system incorporates a memory in which a motion profile and force limits are stored and which receives through each cycle a feedback signal relating to the transducer position of the plunger and from the pressure sensors the pressure on opposite sides of the piston and which produces control signals for a solenoid driven proportional pneumatic valve in accordance with a repetitive algorithm which takes account of (a) the displacement of the plunger from the motion profile, (b) the velocity of the plunger as derived from the rate of change of its position, and (c) the force exerted on the plunger as derived from the pressure difference across the piston. In this way the valve supplies air to the piston and cylinder device to cause the plunger to move from rest at a first position, for a first period of time in a manner limited by the motion profile. Thereafter a first force limit is applied to the plunger. Movement during a second period of time is controlled in a manner limited by the reduction from the first force limit to a second force limit and during a third period of time is limited by the second force limit.