公开(公告)号：US11573647B1

公开(公告)日：2023-02-07

申请号：US17028385

申请日：2020-09-22

Applicant: Amazon Technologies, Inc.

Inventor： Hua Wang ,  Yi Li ,  Abhay Gupta ,  Ehsan Omidi ,  Shichang Liu ,  Kevin Zhang ,  Sanket Parikh ,  Anchit Rastogi

IPC: G06F3/03 ,  H02P3/06 ,  G06F3/01 ,  H02P7/025 ,  H02P7/06 ,  H02P7/28 ,  H02P6/28

Abstract: Techniques for controlling operations of a motor based on position errors are described. In an example, a user device sends an amount of electrical current to the motor to cause the motor to move. The user device also determines the motor is in position for a time interval despite the amount of electrical current. Based at least one the time interval and the amount of electrical current, the user device determines a position difference associated with a target position and a measured position of the motor during the time interval, and reduces the amount of electrical current based at least in part on the time interval.