09634593 is referenced by 1 patents and cites 394 patents.

A method of operating an electric motor is disclosed. The method includes: starting the electric motor in an open loop control mode; operating an estimator that estimates operating conditions of the electric motor; and, while the electric motor is in the open loop control mode, evaluating a first parameter of the estimator. The method further includes: in response to the evaluation of the first parameter, determining whether the estimator has converged; and in response to a determination that the estimator has not converged within a predetermined period of time after starting the electric motor, signaling a first fault condition.

Title
System and method for permanent magnet motor control
Application Number
13/871598
Publication Number
9634593 (B2)
Application Date
April 26, 2013
Publication Date
April 25, 2017
Inventor
Michael I Henderson
Leeds
GB
Charles E Green
Fenton
MO, US
Joseph G Marcinkiewicz
St. Peters
MO, US
Agent
Harness Dickey & Pierce
Assignee
Emerson Climate Technologies
OH, US
IPC
H02P 21/08
B60H 1/00
H02P 29/024
H02P 21/18
H02P 6/21
H02P 21/14
H02P 6/20
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