Invention Grant
- Patent Title: Swinging drive control apparatus and method
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Application No.: US16278700Application Date: 2019-02-18
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Publication No.: US10646786B1Publication Date: 2020-05-12
- Inventor: Xueming Zou , Xuan Zhu
- Applicant: KUNSHAN LUCKY CHILD PRODUCT CO., LTD. , Xuan Zhu
- Applicant Address: CN CN
- Assignee: KUNSHAN LUCKY CHILD PRODUCT CO., LTD.,Xuan Zhu
- Current Assignee: KUNSHAN LUCKY CHILD PRODUCT CO., LTD.,Xuan Zhu
- Current Assignee Address: CN CN
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@25c05954
- Main IPC: A63G9/16
- IPC: A63G9/16 ; H02P7/29 ; A47C3/025 ; A47D13/10 ; A47C3/00

Abstract:
Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive force of a motor in a previous cycle; and comparing a maximum counter-electromotive force value with a preset value, and calculating a PWM pulse duty factor in a next cycle. By directly detecting the counter-electromotive force of the motor without using a sensor, the present invention implements swinging frequency and phase tracking as well as swinging amplitude control, and simplifies a control system.
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