The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2021
Filed:
Mar. 12, 2019
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
Steven P. Moorman, Dexter, MI (US);
Christopher J. Weingartz, Fenton, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 11/00 (2006.01); F16H 61/30 (2006.01); F15B 13/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/30 (2013.01); F15B 11/003 (2013.01); F15B 13/024 (2013.01); F15B 13/025 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/31576 (2013.01); F15B 2211/327 (2013.01);
Abstract
A hydraulic system may include an electrohydraulic control valve disposed in fluid communication between a source of pressured fluid and a hydraulic actuator. The hydraulic system may be controlled to correct for offset errors between a target actuator pressure and a current actuator pressure output from the control valve, without amplifying pressure oscillations in the fluid between the control valve and the hydraulic actuator.