skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Predictive modeling and reducing cyclic variability in autoignition engines

Patent ·
OSTI ID:1312576
; ; ;

Methods and systems are provided for controlling a vehicle engine to reduce cycle-to-cycle combustion variation. A predictive model is applied to predict cycle-to-cycle combustion behavior of an engine based on observed engine performance variables. Conditions are identified, based on the predicted cycle-to-cycle combustion behavior, that indicate high cycle-to-cycle combustion variation. Corrective measures are then applied to prevent the predicted high cycle-to-cycle combustion variation.

Research Organization:
The Regents of the University of Wisconsin, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0003533
Assignee:
The Regents of the University of Wisconsin
Patent Number(s):
9,429,096
Application Number:
13/621,539
OSTI ID:
1312576
Resource Relation:
Patent File Date: 2012 Sep 17
Country of Publication:
United States
Language:
English

References (57)

Closed loop engine roughness control patent August 1982
Method and apparatus for controlling an internal combustion engine patent June 1989
Air-fuel ratio control device for an internal combustion engine patent May 1990
Combustion prediction and discrimination apparatus for an internal combustion engine and control apparatus therefor patent March 1992
Method and apparatus for detecting misfired cylinder of internal combustion engine patent April 1992
Method and apparatus for controlling vehicular suspension patent August 1992
Method and system for detecting a misfire of a reciprocating internal combustion engine patent February 1996
Process for controlling a piston internal combustion engine by maintaining the running limit patent July 1997
Method of controlling cyclic variation in engine combustion patent July 1999
Method for regulating a smooth running of an internal combustion engine patent July 2000
Predicting cylinder pressure for on-vehicle control patent August 2001
Premixed charge compression ignition engine with optimal combustion control patent August 2001
Premixed charge compression ignition engine with optimal combustion control patent September 2001
Compression autoignition gasoline engine patent January 2002
Engine knock prevention system and method patent April 2003
Apparatus and method to detect cylinder faults of internal combustion engines via exhaust temperature monitoring patent January 2004
Intelligent control to stabilize auto-ignition combustion without rapid pressure increase patent April 2004
In-chassis determination of fuel injector performance patent June 2004
Method for estimating fuel injector performance patent October 2004
Internal exhaust gas recirculation amount estimation system of internal combustion engines patent January 2005
Cylinder specific performance parameter computed for an internal combustion engine patent April 2005
Ignition timing control for internal combustion engine patent April 2006
Closed-loop individual cylinder A/F ratio balancing patent April 2006
Auto-ignition timing control and calibration method patent July 2006
Variable compression ratio internal combustion engine patent January 2007
Model-based controller for auto-ignition optimization in a diesel engine patent February 2007
Ignition timing control for internal combustion engine patent May 2007
Ignition timing control for internal combustion engine patent May 2007
Detection systems and methods patent August 2007
Internal combustion engine and method for performing a mode switch in said engine patent April 2008
Method for transition between controlled auto-ignition and spark ignition modes in direct fuel injection engines patent May 2008
Method and device for diagnosing and controlling combustion instabilities in internal combustion engines operating in or transitioning to homogeneous charge combustion ignition mode patent October 2008
Method and apparatus for monitoring cyclic variability in reciprocating engines patent December 2008
Method of real time-estimation of indicators of the combustion state of an internal-combustion engine patent December 2008
High load operation in a homogeneous charge compression ignition engine patent December 2008
System and method for facilitating homogeneous charge compression ignition patent October 2010
Methodology for extending the high load limit of HCCI operation by adjusting injection timing and spark timing patent March 2011
Method of using lean fuel-air mixtures at all operating regimes of a spark ignition engine patent March 2012
Control optimization method for helicopters carrying suspended loads patent May 2012
Combustion balancing control strategy using normalized instantaneous heat release in HCCI engines patent September 2014
Method for detecting detonation phenomena in an internal combustion engine patent April 2016
HCCI/SI Combustion Switching Control System and Method patent-application September 2009
Method and System of Transient Control for Homogeneous Charge Compression Ignition (HCCI) Engines patent-application February 2010
HCCI Combustion Moding State Control for Fuel Economy a nd Seamless Transitions patent-application July 2010
Prediction and estimation of the states related to misfire in an HCCI engine patent-application November 2011
Observing and modeling nonlinear dynamics in an internal combustion engine journal March 1998
Controlling Cyclic Combustion Variations in Lean-Fueled Spark-Ignition Engines conference March 2001
Demonstrating a SI-HCCI-SI Mode Change on a Volvo 5-Cylinder Electronic Valve Control Engine conference March 2003
On the Nature of Cyclic Dispersion in Spark Assisted HCCI Combustion conference April 2006
Understanding the Dynamic Evolution of Cyclic Variability at the Operating Limits of HCCI Engines with Negative Valve Overlap journal January 2012
Quantifying Cyclic Variability in a Multicylinder HCCI Engine With High Residuals journal September 2012
Modeling cyclic dispersion in autoignition combustion conference December 2011
Nonlinear Observer-Based Control of Load Transitions in Homogeneous Charge Compression Ignition Engines journal May 2007
Stability Analysis in Homogeneous Charge Compression Ignition (HCCI) Engines With High Dilution journal March 2007
Control of thermal ignition in gasoline engines conference January 2005
Steady-state multiplicity and stability of thermal equilibria in homogeneous charge compression ignition (HCCI) engines conference January 2004
A Mean-Value Model for Control of Homogeneous Charge Compression Ignition (HCCI) Engines journal August 2004

Similar Records

Related Subjects

42 ENGINEERING
33 ADVANCED PROPULSION SYSTEMS