The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 09, 2025

Filed:

Sep. 09, 2022
Applicant:

Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;

Inventors:

Lin Qian, Shenzhen, CN;

Shun Guo, Shenzhen, CN;

Xueyuan Zhu, Shenzhen, CN;

Min Chen, Shenzhen, CN;

Weiling Shi, Shenzhen, CN;

Yu Qin, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 25/06 (2016.01); G05D 3/12 (2006.01); H02P 1/02 (2006.01);
U.S. Cl.
CPC ...
H02P 25/06 (2013.01); G05D 3/125 (2013.01); H02P 1/029 (2013.01);
Abstract

A method for controlling a direct drive transmission system and related devices. The method includes: S: starting direct drive transmission system for overall zero returning; S: reading a zero signal of the first incremental position feedback means identified by a corresponding second incremental position feedback means; S: determining whether any actuator reads two zero signals; if yes, performing step S; otherwise, returning to step S; S: determining according to a distance between two zero signals fed back by the actuator that the corresponding mover has completed zero returning, and further completing zero returning of the direct drive transmission system; and S: acquiring, by the controller based on the direct drive transmission system after zero returning, position information of the movers, and driving the movers to move. Compared with the related art, the present disclosure has good position feedback effect, high positioning accuracy, and good drive control effect.


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