Linear motor comprising an improved function approximator in the controlling system

• US 20040207346A1
• Filed: 05/28/2004
• Published: 10/21/2004
• Est. Priority Date: 06/26/2001
• Status: Abandoned Application

• Current Assignee: Euregio Centre For Intelligent Control and Mechatronics (E.C.I.C.M.)
• Original Assignee: Euregio Centre For Intelligent Control and Mechatronics (E.C.I.C.M.)
• Inventors: De Vries, Theodorus Jacobus Adrianus, De Kruif, Bastiaan Johannes
• Application Number:
  US10/482,765
• Publication Number:
  US 20040207346A1
• Time in Patent Office: Days
• US Class Current: 318/114
• CPC Class Codes: B60L 15/005 for control of propulsion for vehicles propelled by linear motors
• CPC Class Codes: H02K 41/02 Linear motors; Sectional motors
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility

Abstract

The invention relates to a linear motor with a control system for the translator which is provided with a function-approximator for approximating a function related to the movement of the translator for the purpose of determining the control signal. The function-approximator operates in accordance with the “Support Vector Machine” principle.

The invention further relates to a method for controlling a translator of a linear motor which is provided with a control system comprising a function-approximator, with the following steps of:

a) Approximating a function related to the movement of the components by means of the function-approximator;

b) Determining a control signal for the translator on the basis of the function approximated in step a); and

c) Applying the “Support Vector Machine” principle in the function-approximator.

The invention further describes a control system for applying in this linear motor and a computer program for performing this method.

Claims

1. Linear motor with a control system for controlling one or more components of the linear motor movable along a path, wherein the control system is provided with a function-approximator which is adapted to approximate one or more functions related to the movement of the components for the purpose of determining at least a part of a control signal, wherein the function-approximator operates in accordance with the “

Support Vector Machine”

principle.

2. Linear motor as claimed in claim 1, wherein the function-approximator operates in accordance with the least squares principle.

3. Linear motor as claimed in claim 2, wherein the function-approximator operates in accordance with an iterative principle.

4. Linear motor as claimed in claim 3, wherein a dataset with initial values to be inputted into the function-approximator comprises a minimal number of data which partially represents the movement of the movable components for controlling.

9. Control system for applying in a linear motor as claimed in any of the foregoing claims 1-4.

5. Method for controlling one or more components of a linear motor movable along a path, which motor is provided with a control system comprising a function-approximator, which method comprises the following steps of:

a) approximating one or more functions related to the movement of the components by means of the function-approximator;

b) determining at least a part of a control signal for the movable components on the basis of the functions approximated in step a); and

c) applying the “

Support Vector Machine”

principle in the function-approximator.

6. Method as claimed in claim 5, wherein the method further comprises the step of applying the least squares principle in the function-approximator.

7. Method as claimed in claim 6, wherein the method further comprises the step of having the function-approximator function iteratively.

8. Method as claimed in claim 7, wherein the method further comprises the step of feeding to the function-approximator a dataset with initial values which comprises a minimal number of data partially representing the movement of the components for controlling.

10. Computer program for performing the method as claimed in any of the foregoing claims 5-8.