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Title: Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable

Abstract

Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.

Inventors:
; ; ;
Issue Date:
Research Org.:
Robert Bosch GmbH, Stuttgart, DE (Germany)
Sponsoring Org.:
USDOE
OSTI Identifier:
1162104
Patent Number(s):
8874351
Application Number:
13/435,535
Assignee:
Robert Bosch GmbH (Stuttgart, DE)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
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

Citation Formats

Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, and Stefanopoulou, Anna. Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable. United States: N. p., 2014. Web.
Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, & Stefanopoulou, Anna. Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable. United States.
Jiang, Li, Lee, Donghoon, Yilmaz, Hakan, and Stefanopoulou, Anna. Tue . "Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable". United States. https://www.osti.gov/servlets/purl/1162104.
@article{osti_1162104,
title = {Adjusting the specificity of an engine map based on the sensitivity of an engine control parameter relative to a performance variable},
author = {Jiang, Li and Lee, Donghoon and Yilmaz, Hakan and Stefanopoulou, Anna},
abstractNote = {Methods and systems for engine control optimization are provided. A first and a second operating condition of a vehicle engine are detected. An initial value is identified for a first and a second engine control parameter corresponding to a combination of the detected operating conditions according to a first and a second engine map look-up table. The initial values for the engine control parameters are adjusted based on a detected engine performance variable to cause the engine performance variable to approach a target value. A first and a second sensitivity of the engine performance variable are determined in response to changes in the engine control parameters. The first engine map look-up table is adjusted when the first sensitivity is greater than a threshold, and the second engine map look-up table is adjusted when the second sensitivity is greater than a threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {10}
}

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