Method for position and/or speed control of a linear drive
AssigneeWittmann Kunststoffgeraete GmbH
InventorTomas Kalender
Life of this patent
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Abstract
A method for position and/or speed control of a linear drive utilizing a converter having a control unit and being coupled to a motor of the linear drive. The method includes determining, in a sensor-free manner, a motor position, generating a motor position signal, generating an acceleration signal utilizing an MEMS accelerometer provided in the control unit and arranged on a moving part of the linear drive, mathematically converting the motor position signal and the acceleration signal to a speed signal, and utilizing the speed signal to control the linear drive.
Claims20
A method for position and/or speed control of a linear drive utilizing a converter having a control unit and being coupled to a motor of the linear drive, the method comprising:
- determining, in a sensor-free manner, a motor position;
- generating a motor position signal;
- generating an acceleration signal utilizing an MEMS accelerometer provided in the control unit and arranged on a moving part of the linear drive;
- mathematically converting the motor position signal and the acceleration signal to a speed signal;
- and
- utilizing the speed signal to control the linear drive.
A method for position and/or speed control of a linear drive utilizing a converter and an MEMS accelerometer arranged in a control unit, the method comprising:
- generating a motor position signal;
- generating an acceleration signal utilizing the MEMS accelerometer;
- converting the motor position signal and the acceleration signal to a speed signal;
- and
- utilizing the speed signal to control the linear drive,
- wherein the control unit is arranged on a moving part of the linear drive.
A method for position and/or speed control of a linear drive comprising a movable carriage and a toothed belt, the method comprising:
- arranging a motor and a MEMS accelerometer on the carriage;
- generating a motor position signal;
- generating an acceleration signal utilizing the MEMS accelerometer;
- converting the motor position signal and the acceleration signal to a speed signal;
- and
- utilizing the speed signal to control the linear drive.
Dependencies are inferred from the claim text.