US 11,940,776 B2
Methods and apparatus for detecting aging and predicting failures in BLDC and PMSM motors
Marc David Sousa, McKinney, TX (US); and John Alexander Goodrich-Ruiz, Dallas, TX (US)
Assigned to Active-Semi, Inc., Tortola (VG)
Filed by Active-Semi, Inc., Tortola (VG)
Filed on Jul. 8, 2022, as Appl. No. 17/860,900.
Application 17/860,900 is a continuation of application No. 16/528,444, filed on Jul. 31, 2019, granted, now 11,385,621.
Claims priority of provisional application 62/740,422, filed on Oct. 3, 2018.
Prior Publication US 2022/0342388 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G05B 19/416 (2006.01)
CPC G05B 19/416 (2013.01) [G05B 2219/41329 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
(a) acquiring telemetry data from a motor controller associated with a motor by a state machine of a policy engine, wherein the telemetry data comprises motor parameters and timestamps associated with the motor parameters;
(b) computing aging factors by the state machine of the policy engine for the motor from the telemetry data, wherein the computing of the aging factors comprises performing an averaging analysis or a regression analysis from the motor parameters and the timestamps associated with the motor parameters;
(c) determining failure conditions of the motor by the state machine of the policy engine based on the aging factors;
(d) outputting a notification to a user interface based on the failure conditions; and
(e) repeating the operations of (a), (b), (c), and (d) at selected time intervals.