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Title: System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems

Abstract

A control system for an engine includes a first lift control module and a second lift control module. The first lift control module increases lift of M valves of the engine to a predetermined valve lift during a period before disabling or re-enabling N valves of the engine. The second lift control module decreases the lift of the M valves to a desired valve lift during a period after enabling or re-enabling the N valves of the engine, wherein N and M are integers greater than or equal to one.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
GM Global Technology Operations LLC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1159919
Patent Number(s):
8,839,750
Application Number:
12/910,212
Assignee:
GM Global Technology Operations LLC (N/A)
DOE Contract Number:  
FC26-05NT42415
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Brennan, Daniel G, Marriott, Craig D, Cowgill, Joel, Wiles, Matthew A, and Patton, Kenneth James. System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems. United States: N. p., 2014. Web.
Brennan, Daniel G, Marriott, Craig D, Cowgill, Joel, Wiles, Matthew A, & Patton, Kenneth James. System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems. United States.
Brennan, Daniel G, Marriott, Craig D, Cowgill, Joel, Wiles, Matthew A, and Patton, Kenneth James. 2014. "System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems". United States. https://www.osti.gov/servlets/purl/1159919.
@article{osti_1159919,
title = {System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems},
author = {Brennan, Daniel G and Marriott, Craig D and Cowgill, Joel and Wiles, Matthew A and Patton, Kenneth James},
abstractNote = {A control system for an engine includes a first lift control module and a second lift control module. The first lift control module increases lift of M valves of the engine to a predetermined valve lift during a period before disabling or re-enabling N valves of the engine. The second lift control module decreases the lift of the M valves to a desired valve lift during a period after enabling or re-enabling the N valves of the engine, wherein N and M are integers greater than or equal to one.},
doi = {},
url = {https://www.osti.gov/biblio/1159919}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {9}
}

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Electrohydraulic proportional actuator apparatus
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Control device for a variable displacement engine
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Multi-pass light amplifier
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Magnetically-latchable fluid control valve system
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patent, April 2006


Method for operating a hybrid vehicle and hybrid vehicle
patent, August 2009


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patent-application, January 2003


Method for controlling a variable event valvetrain
patent-application, January 2007


Valve actuator assembly having a center biased spool valve with detent feature
patent-application, November 2007


Method and device for controlling a hydraulic actuator
patent-application, January 2009


HCCI/SI Combustion Switching Control System and Method
patent-application, September 2009


Valve Gear of Internal Combustion Engine
patent-application, November 2009


Hydraulically Operated Valve Actuation and Internal Combustion Engine with Such a Valve Actuation
patent-application, December 2010


Variable Valve Actuation Control Systems and Methods
patent-application, March 2011


Air Assist Start Stop Methods and Systems
patent-application, June 2011


Variable Lost Motion Valve Actuator and Method
patent-application, August 2011


System and Method for Controlling Hydraulic Pressure in ELectro-Hydraulic Valve Actuation Systems
patent-application, April 2012