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

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United States of America Patent

PATENT NO 8839750
APP PUB NO 20120097121A1
SERIAL NO

12910212

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
GM GLOBAL TECHNOLOGY OPERATIONS LLC300 RENAISSANCE CENTER MAIL CODE 482-C24-A68 P O BOX 300 DETROIT MI 48265

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brennan, Daniel G Brighton, US 29 459
Cowgill, Joel White Lake, US 14 82
Marriott, Craig D Clawson, US 36 394
Patton, Kenneth James Howell, US 2 10
Wiles, Matthew A Royal Oak, US 13 246

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