Title: Perturbing engine performance measurements to determine optimal engine control settings

Abstract

Methods and systems for optimizing a performance of a vehicle engine are provided. The method includes determining an initial value for a first engine control parameter based on one or more detected operating conditions of the vehicle engine, determining a value of an engine performance variable, and artificially perturbing the determined value of the engine performance variable. The initial value for the first engine control parameter is then adjusted based on the perturbed engine performance variable causing the engine performance variable to approach a target engine performance variable. Operation of the vehicle engine is controlled based on the adjusted initial value for the first engine control parameter. These acts are repeated until the engine performance variable approaches the target engine performance variable.

Inventors:

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

Issue Date:

2014-12-30

Research Org.:

Robert Bosch GmbH, Stuttgart, DE (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1166743

Patent Number(s):

8924125

Application Number:

13/435,551

Assignee:

Robert Bosch GmbH (Stuttgart, DE)

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