Title: Concurrently adjusting interrelated control parameters to achieve optimal engine performance

Abstract

Methods and systems for real-time engine control optimization are provided. A value of an engine performance variable is determined, a value of a first operating condition and a value of a second operating condition of a vehicle engine are detected, and initial values for a first engine control parameter and a second engine control parameter are determined based on the detected first operating condition and the detected second operating condition. The initial values for the first engine control parameter and the second engine control parameter are adjusted based on the determined value of the engine performance variable to cause the engine performance variable to approach a target engine performance variable. In order to cause the engine performance variable to approach the target engine performance variable, adjusting the initial value for the first engine control parameter necessitates a corresponding adjustment of the initial value for the second engine control parameter.

Inventors:

Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

Issue Date:

2015-12-01

Research Org.:

Robert Bosch GmbH, Stuttgart, DE (Germany)

Sponsoring Org.:

USDOE

OSTI Identifier:

1227361

Patent Number(s):

9200583

Application Number:

13/435,562

Assignee:

Robert Bosch GmbH

Patent Classifications (CPCs):

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

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES

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

F02D13/0215 - {changing the valve timing only}
F02D19/084 - {Blends of gasoline and alcohols, e.g. E85}
F02D2041/001 - {for engines with variable valve actuation}
F02D2041/1419 - {the control loops being cascaded, i.e. being placed in series or nested}
F02D2041/1432 - {the system including a filter, e.g. a low pass or high pass filter}
F02D37/02 - one of the functions being ignition
F02D41/08 - for idling
F02D41/1406 - {with use of a optimisation method, e.g. iteration}
F02D41/1408 - {Dithering techniques}
F02D41/2432 - {Methods of calibration}
F02D41/2438 - {Active learning methods}
F02D41/2441 - {characterised by the learning conditions}
F02D41/2445 - {characterised by a plurality of learning conditions or ranges}
F02D41/248 - {using a plurality of learned values}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES

F02P5/153 - dependent on combustion pressure

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
Y02T10/30 - Use of alternative fuels
Y02T10/40 - Engine management systems

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DOE Contract Number:  

FC26-07NT43274

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Mar 30

Country of Publication:

United States

Language:

English

Subject:

33 ADVANCED PROPULSION SYSTEMS