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1. EP2484886 - INTERNAL COMBUSTION ENGINE CONTROL DEVICE

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Office European Patent Office
Application Number 10818718
Application Date 14.09.2010
Publication Number 2484886
Publication Date 08.08.2012
Publication Kind A1
IPC
F02D 41/22
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
22Safety or indicating devices for abnormal conditions
F02D 41/04
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
04Introducing corrections for particular operating conditions
F02D 41/16
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
16for idling
F02D 45/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
45Electrical control not provided for in groups F02D41/-F02D43/98
CPC
F02D 41/221
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
22Safety or indicating devices for abnormal conditions
221relating to the failure of actuators or electrically driven elements
F02D 31/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
31Use of speed-sensing governors to control combustion engines, not otherwise provided for
001Electric control of rotation speed
002controlling air supply
003for idle speed control
005by controlling a throttle by-pass
F02D 2041/2058
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
20Output circuits, e.g. for controlling currents in command coils
202characterised by the control of the circuit
2058using information of the actual current value
Y02T 10/40
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
10Internal combustion engine [ICE] based vehicles
40Engine management systems
Applicants KEIHIN CORP
Inventors ASOU RYUJI
SUGAWARA HIAKI
Priority Data 2009223213 28.09.2009 JP
Title
(DE) STEUERVORRICHTUNG FÜR EINEN VERBRENNUNGSMOTOR
(EN) INTERNAL COMBUSTION ENGINE CONTROL DEVICE
(FR) DISPOSITIF DE COMMANDE DE MOTEUR À COMBUSTION INTERNE
front page image
Abstract
(EN)
An internal combustion engine control apparatus includes an output-current abnormality-signal holding unit (112) that determines whether a current abnormality signal is being output from a current-abnormality detecting unit (108, 110), which compares a current value detected by a current detecting unit (R1, R2) with a predetermined threshold, and outputs a current abnormality signal when the current value is equal to or less than the predetermined threshold continuously for a predetermined time or longer, and outputs a current abnormality signal when the current abnormality signal is being output continuously for a predetermined time or longer, and does not output a current abnormality signal when the current abnormality signal is output continuously for less than the predetermined time.

(FR)
L'invention concerne un dispositif de commande de moteur à combustion interne pourvu d'une unité de rétention de signal d'anomalie de courant de sortie (112) qui détermine si un signal d'anomalie de courant est émis en sortie par une unité de détection d'anomalie de courant (108, 110) de façon continue pendant une durée prédéterminée ou davantage, et émet en sortie le signal d'anomalie de courant lorsque ledit signal est émis de façon continue pendant la durée prédéterminée ou davantage et n'émet pas en sortie le signal d'anomalie de courant lorsque ledit signal est émis de façon continue pendant une durée inférieure à la durée prédéterminée, l'unité de détection d'anomalie de courant (108, 110) comparant une valeur de courant détectée par une unité de détection de courant (R1, R2) avec une valeur seuil prédéterminée et émettant en sortie le signal d'anomalie de courant lorsque la valeur de courant est égale ou inférieure à la valeur seuil prédéterminée.
Also published as
JP2011069336
US20120185149
WO/2011/037043
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