Invention Grant
- Patent Title: Methods and apparatus for multi-mode motor speed calculation using digital hall effect sensors
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Application No.: US15622915Application Date: 2017-06-14
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Publication No.: US10044302B2Publication Date: 2018-08-07
- Inventor: Ron Strong , Thom Kreider
- Applicant: HONEYWELL INTERNATIONAL INC.
- Applicant Address: US NJ Morris Plains
- Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee: HONEYWELL INTERNATIONAL INC.
- Current Assignee Address: US NJ Morris Plains
- Agency: Lorenz & Kopf, LLP
- Main IPC: H02K29/08
- IPC: H02K29/08 ; H02P6/17 ; G01P3/489 ; G01P3/486 ; G01R33/07

Abstract:
A method for determining an updated rotor speed for a motor is provided. The method obtains, by a processor, a current rotor speed of the motor; determines a current mode for the motor, based on the current rotor speed, wherein the current mode comprises a low-speed mode, an intermediate speed mode, or a high-speed mode; detects one or more Hall events associated with a plurality of digital Hall Effect sensors coupled to the motor, based on the current mode; calculates, by the processor, a new rotor speed for the motor, based on the one or more Hall events and the current mode; and transmits the new rotor speed as a motor speed feedback signal, for digital speed control of the motor.
Public/Granted literature
- US20180198389A1 METHODS AND APPARATUS FOR MULTI-MODE MOTOR SPEED CALCULATION USING DIGITAL HALL EFFECT SENSORS Public/Granted day:2018-07-12
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