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Title: Simultaneously firing two cylinders of an even firing camless engine

Abstract

A valve control system includes an engine speed control module that determines an engine speed and a desired engine stop position. A piston position module determines a desired stopping position of a first piston based on the desired engine stop position. A valve control module receives the desired stopping position, commands a set of valves to close at the desired stopping position if the engine speed is less than a predetermined shutdown threshold, and commands the set of valves to reduce the engine speed if the engine speed is greater than the predetermined shutdown threshold.

Inventors:
Issue Date:
Research Org.:
GM Global Technology Operations LLC, Detroit, MI, USA
Sponsoring Org.:
USDOE
OSTI Identifier:
1126872
Patent Number(s):
8667954
Application Number:
13/238,388
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02N - STARTING OF COMBUSTION ENGINES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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. Simultaneously firing two cylinders of an even firing camless engine. United States: N. p., 2014. Web.
Brennan, Daniel G. Simultaneously firing two cylinders of an even firing camless engine. United States.
Brennan, Daniel G. Tue . "Simultaneously firing two cylinders of an even firing camless engine". United States. https://www.osti.gov/servlets/purl/1126872.
@article{osti_1126872,
title = {Simultaneously firing two cylinders of an even firing camless engine},
author = {Brennan, Daniel G},
abstractNote = {A valve control system includes an engine speed control module that determines an engine speed and a desired engine stop position. A piston position module determines a desired stopping position of a first piston based on the desired engine stop position. A valve control module receives the desired stopping position, commands a set of valves to close at the desired stopping position if the engine speed is less than a predetermined shutdown threshold, and commands the set of valves to reduce the engine speed if the engine speed is greater than the predetermined shutdown threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {3}
}

Works referenced in this record:

Method for starting a multicylinder internal combustion engine
patent, April 2000


Starting a camless engine from rest
patent, September 2006


Internal combustion engine shut-down for engine having adjustable valves
patent, July 2007


Engine starting for engine having adjustable valve operation
patent, October 2007


Method for fueling an engine at start
patent, April 2013


Controlled starting and braking of an internal combustion engine
patent-application, September 2005


Method and System for Engine Control
patent-application, August 2012


Method and Device for Controlling an Internal Combustion Engine
patent-application, July 2013