Sensor System
AssigneeSick AG
InventorsDavid HOPP, Stefan HOGG
Life of this patent
Estimating the term…
Abstract
A sensor system for monitoring a motor that drives a machine arrangement via a rotating motor shaft, wherein a machine cycle is given by a periodic movement pattern of the machine arrangement and/or of the motor shaft, comprises an acceleration sensor for detecting an acceleration of the motor; and an electronic control unit that is in signal connection with the acceleration sensor and that is configured to carry out a comparison of the detected acceleration with at least one predefined threshold value for a wear recognition and to consider the machine cycle in the comparison. The electronic control unit is configured to automatically recognize the machine cycle based on a periodically occurring pattern in the time development of the detected acceleration of the motor.
Claims19
1-15. (canceled)
A sensor system for monitoring a motor that drives a machine arrangement via a rotating motor shaft, wherein a machine cycle is given by a periodic movement pattern of the machine arrangement and/or of the motor shaft and the sensor system comprises the following:
- at least one acceleration sensor for continuously or intermittently detecting an acceleration of the motor;
- and
- an electronic control unit that is in signal connection with the at least one acceleration sensor and that is configured, for a wear recognition, to carry out a comparison of the detected acceleration with at least one predefined threshold value and to consider the machine cycle in the comparison, wherein the electronic control unit is configured to automatically recognize the machine cycle based on a periodically occurring pattern in the time development of the detected acceleration of the motor.
A method for monitoring a motor that drives a machine arrangement via a rotating motor shaft, wherein a machine cycle is given by a periodic movement pattern of the machine arrangement and/or of the motor shaft and, in the method,
- by means of at least one acceleration sensor, an acceleration of the motor is continuously or intermittently detected, and
- by means of an electronic control unit, which is in signal connection with the at least one acceleration sensor, a comparison of the detected acceleration with at least one predefined threshold value is carried out for a wear recognition and the machine cycle is considered in the comparison,
- wherein the machine cycle is automatically recognized based on a periodically occurring pattern in the time development of the detected acceleration of the motor.
Dependencies are inferred from the claim text.