Title: Nonlinear model-based controller for premixed charge compression ignition combustion timing in diesel engines

Abstract

Advanced combustion modes, such as PCCI, operate near the system stability limits. In PCCI, the combustion event begins without a direct combustion trigger in contrast to traditional spark-ignited gasoline engines and direct-injected diesel engines. The lack of a direct combustion trigger encourages the usage of model-based controls to provide robust control of the combustion phasing. The nonlinear relationships between the control inputs and the combustion system response often limit the effectiveness of traditional, non-model-based controllers. Accurate knowledge of the system states and inputs is helpful for implementation of an effective nonlinear controller. A nonlinear controller is developed and implemented to control the engine combustion timing during diesel PCCI operation by targeting desired values of the in-cylinder oxygen concentration, pressure, and temperature during early fuel injection.

Inventors:

Shaver, Gregory M.; Kocher, Lyle E.; Hall, Carrie; Van Alstine, Daniel; Magee, Mark

Issue Date:

2018-10-09

Research Org.:

Purdue Univ., West Lafayette, IN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1485292

Patent Number(s):

10094306

Application Number:

14/651,521

Assignee:

Purdue Research Foundation (West Lafayette, IN)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES

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

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES

F02B1/12 - with compression ignition

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

F02D13/0226 - {changing valve lift or valve lift and timing}
F02D13/0265 - {Negative valve overlap for temporarily storing residual gas in the cylinder}
F02D2041/1415 - {using a state feedback or a state space representation}
F02D2041/1416 - {Observer}
F02D2041/1433 - {using a model or simulation of the system}
F02D2200/0402 - the parameter being determined by using a model of the engine intake or its components
F02D2200/0406 - Intake manifold pressure
F02D2200/0411 - Volumetric efficiency
F02D2200/0414 - Air temperature
F02D35/02 - on interior conditions
F02D41/0007 - {for control of turbo-charged or super-charged engines
F02D41/0062 - {Estimating, calculating or determining the internal EGR rate, amount or flow}
F02D41/0072 - {Estimating, calculating or determining the EGR rate, amount or flow
F02D41/1401 - {characterised by the control or regulation method
F02D41/1447 - {with determination means using an estimation}
F02D41/1458 - {with determination means using an estimation}
F02D41/3035 - {a mode being the premixed charge compression-ignition mode}
F02D41/401 - {Controlling injection timing

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

F02M26/05 - High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
F02M26/10 - having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
F02M26/23 - Layout, e.g. schematics

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
Y02T10/40 - Engine management systems

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DOE Contract Number:  

EE0003403

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Dec 12

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING