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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

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.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1162104
Report Number(s):
8,874,351
13/435,535
DOE Contract Number:
FC26-07NT43274
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Mar 30
Research Org:
Robert Bosch GmbH, Stuttgart, DE (Germany)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS