公开(公告)号：US20250075714A1

公开(公告)日：2025-03-06

申请号：US18820923

申请日：2024-08-30

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： James Hennen ,  Ian Kugel ,  Tom Byron ,  Kevin Carlson ,  Kevin Thurmes

IPC: F15B19/00 ,  F15B13/04 ,  F15B13/044 ,  G01M99/00

Abstract: A dynamic testing system includes a test station and at least one controller. The test station includes a hydraulic actuator configured to drive an actuation of a test subject using a hydraulic fluid flow, and a control valve that includes a housing, a valve body contained within the housing having a position that controls a flow rate and direction of the hydraulic fluid flow, a valve body driver configured to adjust the position of the valve body based on a reference signal, and a valve position sensor configured to output a position signal that is indicative of the position of the valve body. The at least one controller is configured to obtain a current position of the valve body using the position signal, obtain a diagnostic reference, detect a diagnostic condition based on a difference between the current position and the diagnostic reference, and generate a diagnostic signal.

公开(公告)号：US20250059987A1

公开(公告)日：2025-02-20

申请号：US18807912

申请日：2024-08-16

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： Hans-Peter Beggel ,  James Hennen ,  Kurt Kvistberg ,  Kevin Thurmes ,  Paul Rindahl

IPC: F15B11/17 ,  G01M99/00

Abstract: A hydraulic power unit includes a reservoir containing hydraulic fluid, a main output, a pressure sensor, at least one active valve hydraulic pump and at least one passive valve hydraulic pump. A main flow of the hydraulic fluid is discharged through the main output. The pressure sensor includes a pressure signal that is indicative of a pressure of the main flow. Each active valve hydraulic pump is configured to drive a first flow portion of the main flow from the reservoir to the main output when the pressure signal is below a first pressure setpoint. Each passive valve hydraulic pump is configured to drive a second flow portion of the main flow from the reservoir to the main output when the pressure signal is below a second pressure setpoint.