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

Brennan, Daniel G; Marriott, Craig D; Cowgill, Joel; Wiles, Matthew A; Patton, Kenneth James

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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:: Brennan, Daniel G; Marriott, Craig D; Cowgill, Joel; Wiles, Matthew A; Patton, Kenneth James

Issue Date:: 2014-09-23

Research Org.:: GM Global Technology Operations LLC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1159919

Patent Number(s):: 8839750

Application Number:: 12/910,212

Assignee:: GM Global Technology Operations LLC (N/A)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

Show more

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01L - CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01L13/0005 - {Deactivating valves}
F01L13/0015 - {for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque}
F01L2800/08 - Timing or lift different for valves of different cylinders

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D13/0207 - {changing valve lift or valve lift and timing}
F02D13/08 - for rendering engine inoperative or idling

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

Show less

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.

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                    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.

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                    Brennan, Daniel G, Marriott, Craig D, Cowgill, Joel, Wiles, Matthew A, and Patton, Kenneth James. Tue .  
        "System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems".  United States.  https://www.osti.gov/servlets/purl/1159919.

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@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          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {9}

}

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