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US 11,235,886 B2Granted
Monitoring system for identifying an operating state of a motor
AssigneeGoodrich Actuation Systems Limited
InventorsGraham Hardwick, James Thomas, Herve Menaut
Life of this patent
Estimating the term…
Abstract
A monitoring system is disclosed for identifying an operating state of a motor, the system comprising: a speed sensor for determining a speed of a motor and providing a speed signal as a function of time in response thereto, and a processor configured to identify a symmetric and/or an asymmetric oscillation of the speed signal as a function of time.
Claims15
A motor assembly comprising:
- a first motor and a second motor, wherein the first motor is mechanically coupled to the second motor;
- and
- a monitoring system for identifying an operating state of the first motor or the second motor, the monitoring system comprising
- a speed sensor for determining a speed of the first motor and providing a speed signal as a function of time in response thereto;
- and
- a processor configured to identify that the first motor is in a failed state by identifying a symmetric oscillation of the speed signal, with respect to its average value, as a function of time;
- or to identify that the second motor is in a failed state by identifying an asymmetric oscillation of the speed signal, with respect to its average value, as a function of time.
4 more elements
A monitoring system for identifying an operating state of a motor, the system comprising:
- a speed sensor for determining a speed of a motor and providing a speed signal as a function of time in response thereto;
- and
- a processor configured to identify a symmetric and/or an asymmetric oscillation of the speed signal as a function of time;
- wherein the processor comprises a first monitor, wherein the first monitor compares the speed signal to a first threshold speed, and is configured such that when the speed signal is greater than the first threshold speed, the first monitor counts up at a first count-up rate.
1 more element
A motor assembly comprising
- a first motor and a second motor;
- and
- a monitoring system for identifying an operating state of the first motor, the monitoring system comprising:
- a speed sensor for determining a speed of the first motor and providing a first speed signal as a function of time in response thereto, a processor configured to identify a symmetric and/or an asymmetric oscillation of the first speed signal as a function of time;
- and
- a further speed sensor for determining a speed of the second motor and providing a second speed signal as a function of time in response thereto, and a processor configured to identify a symmetric and/or an asymmetric oscillation of the second speed signal as a function of time.
3 more elements
Dependencies are inferred from the claim text.