公开(公告)号：US20190293429A1

公开(公告)日：2019-09-26

申请号：US15934034

申请日：2018-03-23

Applicant: THE BOEING COMPANY

Inventor： Douglas C. Cameron ,  Dwayne C. Merna ,  Manu Sharma

IPC: G01C21/16 ,  G01C25/00 ,  H02P6/17 ,  H03M1/48

Abstract: An apparatus includes a coarse resolver configured to output coarse position signals indicative of a coarse position of a drive shaft of a motor. The apparatus also includes a fine resolver configured to output fine position signals indicative of a fine position of the drive shaft of the motor. The apparatus further includes a control circuit. The control circuit is configured to receive the coarse position signals from the coarse resolver and the fine position signals from the fine resolver and generate an initial position output, based on the coarse position signals, that indicates an initial position of the drive shaft. The control circuit is further configured to generate a subsequent position output, based on the fine position signals, that indicates a subsequent position of the drive shaft.

公开(公告)号：US20190291898A1

公开(公告)日：2019-09-26

申请号：US15934066

申请日：2018-03-23

Applicant: THE BOEING COMPANY

Inventor： Douglas C. Cameron ,  Dwayne C. Merna

IPC: B64G1/28 ,  G01C19/30 ,  G05D1/08 ,  B64G1/36

Abstract: Feedback control circuitry includes rate limiter circuitry configured to generate a rate limited position command based on a position command for a controlled component and based on a speed command for the controlled component. The feedback control circuitry also includes error adjustment circuitry configured to apply a control gain to an error signal to generate an adjusted error signal. The error signal is based on position feedback and the rate limited position command, and the position feedback indicates a position of the controlled component. The feedback control circuitry further includes an output terminal configured to output a current command generated based on the adjusted error signal.