US 12,304,318 B2
Motor speed measurement systems
Nageswara Rao Kalluri, Bangalore (IN); Pravinsharma Kaliyannan Eswaran, Bangalore (IN); Sridhar Katakam, Bangalore (IN); Surendra Somasekhar Valleru, Bangalore (IN); and Ashish Vijay, Bikaner (IN)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Aug. 10, 2022, as Appl. No. 17/885,161.
Claims priority of application No. 202141038687 (IN), filed on Aug. 26, 2021.
Prior Publication US 2023/0063593 A1, Mar. 2, 2023
Int. Cl. H02P 27/04 (2016.01); B60L 15/20 (2006.01); B60W 10/06 (2006.01)
CPC B60L 15/20 (2013.01) [B60W 10/06 (2013.01); B60W 2510/0638 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor speed monitoring system, comprising:
a monitor channel comprising:
an input configured to connect to an inverter output of an inverter to receive motor power signals from the inverter; and
an intelligence module configured to determine a motor speed based on the motor power signals from the inverter;
wherein the inverter is configured to be controlled by inputs provided over a control channel; and
wherein the monitor channel is independent of the control channel such that the monitor channel does not receive the inputs from the control channel.