公开(公告)号：US11973454B2

公开(公告)日：2024-04-30

申请号：US17540278

申请日：2021-12-02

Applicant: Bell Textron Inc.

Inventor： Robert Reynolds ,  Charles Eric Covington ,  Carlos Alexander Fenny ,  Brady G. Atkins

IPC: H02P6/06 ,  B60W10/08 ,  G01R31/34 ,  H02P1/26 ,  H02P6/185

CPC classification number: H02P6/06 ,  B60W10/08 ,  G01R31/343 ,  H02P1/26 ,  H02P6/185 ,  B60W2420/50 ,  B60W2420/90

Abstract: A system includes a driver monitor system configured to receive information about driver operation, a relationship table comprising information about an expected relationship between driver operation and a preload force, and a driver controller configured to control a driver in response to the information about driver operation and according to the relationship table. A method of managing a preload force includes providing a first component, providing a second component for compression against the first component, operating a driver to move the first component into contact with the second component, monitoring an operation of the driver, and determining an expected preload force in response to the operation of the driver.

公开(公告)号：US20230179126A1

公开(公告)日：2023-06-08

申请号：US17540278

申请日：2021-12-02

Applicant: Bell Textron Inc.

Inventor： Robert Reynolds ,  Charles Eric Covington ,  Carlos Alexander Fenny ,  Brady G. Atkins

IPC: H02P6/06 ,  H02P6/185 ,  H02P1/26 ,  B60W10/08 ,  G01R31/34

CPC classification number: H02P6/06 ,  H02P6/185 ,  H02P1/26 ,  B60W10/08 ,  G01R31/343 ,  B60W2420/50 ,  B60W2420/90

Abstract: A system includes a driver monitor system configured to receive information about driver operation, a relationship table comprising information about an expected relationship between driver operation and a preload force, and a driver controller configured to control a driver in response to the information about driver operation and according to the relationship table. A method of managing a preload force includes providing a first component, providing a second component for compression against the first component, operating a driver to move the first component into contact with the second component, monitoring an operation of the driver, and determining an expected preload force in response to the operation of the driver.

公开(公告)号：US20210139134A1

公开(公告)日：2021-05-13

申请号：US16679172

申请日：2019-11-09

Applicant: Bell Textron Inc.

Inventor： Brady G. Atkins ,  Robert Reynolds

IPC: B64C13/16 ,  F15B20/00 ,  F15B11/16

Abstract: A hydraulic actuator has a lower cylinder comprising a lower cylinder extension area and a lower cylinder retraction area, an upper cylinder comprising an upper cylinder extension area and an upper cylinder retraction area, and an actuator shaft. The actuator shaft has a lower cylinder piston disposed in the lower cylinder, an upper cylinder piston disposed in the upper cylinder, a lower shaft connecting the lower cylinder piston to the upper cylinder piston, and an upper shaft extending from the upper cylinder piston and at least partially externally from the upper cylinder. At least one of fluid flow of the lower cylinder matches fluid flow of the upper cylinder and (1) an internal diameter of the lower cylinder is not equal to the an internal diameter of the upper cylinder and (2) a diameter of the lower shaft is not equal to a diameter of the upper shaft.