公开(公告)号：US20180112685A1

公开(公告)日：2018-04-26

申请号：US15299513

申请日：2016-10-21

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Dustin K. Fee ,  Ioan Paduret ,  David J. Subert

IPC: F15B13/04 ,  F16K31/06 ,  F16K11/07 ,  F16K27/00 ,  F16K37/00 ,  G05D7/06

CPC classification number: F15B21/087 ,  F15B13/043 ,  F15B13/086 ,  F15B2013/0409 ,  F15B2211/20546 ,  F15B2211/327 ,  F15B2211/355 ,  F15B2211/575 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/635 ,  F15B2211/6656 ,  F16K3/262 ,  F16K3/265 ,  F16K11/22 ,  F16K27/003 ,  F16K31/0668 ,  F16K31/12 ,  G05D7/0664 ,  G05D16/2022 ,  G05D16/206

Abstract: A system for controlling operation of a hydraulic valve is provided. The system includes a solenoid coupled to a spool assembly of the hydraulic valve. The system further includes a sensor disposed on the hydraulic valve. The sensor generates signals indicative of operational parameter of the hydraulic valve. The system also includes a controller in communication with the solenoid and the sensor. The controller receives signals generated by the sensor. The controller includes a booster circuit connected to the solenoid. The booster circuit boosts an actuating current generated in response to the signals received from the sensor. The controller further includes a switching circuit connected across the solenoid. The switching circuit controls a direction of the actuating current flowing through the solenoid. The solenoid actuates the spool assembly of the hydraulic valve to control the operation of the hydraulic valve based on the actuating current.