Invention Grant
- Patent Title: Controlling brushless motor commutation
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Application No.: US17694260Application Date: 2022-03-14
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Publication No.: US12101051B2Publication Date: 2024-09-24
- Inventor: Jason Genz , Michael T. Rajzer , Christoffer S. Fox , Daniel Nitzsche
- Applicant: Snap-on Incorporated
- Applicant Address: US WI Kenosha
- Assignee: Snap-on Incorporated
- Current Assignee: Snap-on Incorporated
- Current Assignee Address: US WI Kenosha
- Agency: Taft Stettinius & Hollister LLP
- Main IPC: H02P6/15
- IPC: H02P6/15 ; B25B21/00

Abstract:
The present invention relates to a method of commutation control of a brushless DC (BLDC) motor. The method uses a controller to control the BLDC motor using a modified six-step commutation. The method adds six intermediate steps that overlap the six-step commutation. Each of the six steps overlap with preceding and following steps, resulting in six additional intermediate steps in which all three phases are active. By doubling the number of steps, current and torque will vary less over time compared with current solutions without increasing the size or changing the design of the motor.
Public/Granted literature
- US20220311365A1 CONTROLLING BRUSHLESS MOTOR COMMUTATION Public/Granted day:2022-09-29
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