Electrohydraulic valve control circuit with magnetic...

Details Electrohydraulic valve control circuit with magnetic... Electrohydraulic valve control circuit with magnetic...

2006-06-26

2010-12-28

Bastianelli, John (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

Reexamination Certificate

active

07857281

ABSTRACT:
A method for operating an electrohydraulic valve initially derives a characterization value that denotes how magnetic hysteresis affects valve operation. Upon receiving a command that designates a desired magnitude of electric current to be applied to the electrohydraulic valve, that command is modified based on the characterization value to compensate for the magnetic hysteresis. The modified command then is employed to apply electric current to the electrohydraulic valve.

REFERENCES:
patent: 4813443 (1989-03-01), Pounder
patent: 4970622 (1990-11-01), Buchl
patent: 5024417 (1991-06-01), Voxbrunner
patent: 5465757 (1995-11-01), Peters
patent: 5615832 (1997-04-01), Price
patent: 5781397 (1998-07-01), Schrey
patent: 5933313 (1999-08-01), Furukawa
patent: 6158715 (2000-12-01), Kirschbaum
patent: 6176212 (2001-01-01), Vilou
patent: 6188561 (2001-02-01), Heimberg
patent: 6286532 (2001-09-01), van Nieuwstadt et al.
patent: 6328275 (2001-12-01), Yang et al.
patent: 6364281 (2002-04-01), DeLand et al.
patent: 6571757 (2003-06-01), Simpson
patent: 6775974 (2004-08-01), Tabor
patent: 6938592 (2005-09-01), Taylor et al.
patent: 2005/0211936 (2005-09-01), Tabor et al.
patent: 4327523 (1994-02-01), None
patent: 19813913 (1999-09-01), None
patent: 1041329 (2002-08-01), None
patent: 58161305 (1983-09-01), None

Affiliated with

Also associated with

Rating

Electrohydraulic valve control circuit with magnetic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrohydraulic valve control circuit with magnetic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrohydraulic valve control circuit with magnetic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4212756