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1. US20080262697 - Method for operating an internal combustion engine, taking into consideration the individual properties of the injection devices

Office
United States of America
Application Number 11660975
Application Date 23.06.2005
Publication Number 20080262697
Publication Date 23.10.2008
Grant Number 7600504
Grant Date 13.10.2009
Publication Kind B2
IPC
G01L 3/00
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
3Measuring torque, work, mechanical power, or mechanical efficiency, in general
F02D 41/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
F02D 41/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
14Introducing closed-loop corrections
F02D 41/24
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
24characterised by the use of digital means
CPC
F02D 41/1497
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
02Circuit arrangements for generating control signals
14Introducing closed-loop corrections
1497With detection of the mechanical response of the engine
F02D 41/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
008Controlling each cylinder individually
F02D 41/2425
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
24characterised by the use of digital means
2406using essentially read only memories
2425Particular ways of programming the data
F02D 2200/1004
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
2200Input parameters for engine control
02the parameters being related to the engine
10Parameters related to the engine output, e.g. engine torque or engine speed
1002Output torque
1004Estimation of the output torque
Applicants Robert Bosch GmbH
Inventors Gangi Marco
Von Schwertfuehrer Gerit
Agents Kenyon &; Kenyon LLP
Title
(EN) Method for operating an internal combustion engine, taking into consideration the individual properties of the injection devices
Abstract
(EN)

A method for operating an internal combustion engine, in which fuel is injected using an injection device into a combustion chamber of a cylinder of the internal combustion engine, a fuel quantity to be injected being ascertained as a function of individual properties of the injection device, and in which functional monitoring is performed, in which an actual torque is ascertained on the basis of performance quantities of the internal combustion engine and monitored for a deviation from a permissible torque. The individual properties of the injection device are taken into consideration when ascertaining the actual torque, where the functional monitoring is improved.