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

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