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1. (WO1997015758) A METHOD OF IDENTIFYING THE COMBUSTION CHAMBER OF A COMBUSTION ENGINE THAT IS IN THE COMPRESSION STROKE, A METHOD OF STARTING A COMBUSTION ENGINE, AND A DEVICE FOR A COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015758 International Application No.: PCT/SE1996/001357
Publication Date: 01.05.1997 International Filing Date: 23.10.1996
Chapter 2 Demand Filed: 23.05.1997
IPC:
F02D 41/06 (2006.01) ,F02D 41/34 (2006.01) ,F02P 3/08 (2006.01) ,F02P 7/077 (2006.01) ,F02P 15/10 (2006.01) ,F02P 17/12 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
04
Introducing corrections for particular operating conditions
06
for engine starting or warming up
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
30
Controlling fuel injection
32
of the low pressure type
34
with means for controlling injection timing or duration
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
3
Other electric spark ignition installations characterised by the type of ignition power generation storage
06
having capacitive energy storage
08
Layout of circuits
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
7
Arrangement of distributors, circuit-makers, circuit-breakers or pick-up devices for electric spark ignition
06
of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
077
Circuits therefor, e.g. pulse generators
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
15
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/-F02P13/154
10
having continuous electric sparks
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
17
Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
12
Testing characteristics of the spark, ignition voltage or current
Applicants:
SAAB AUTOMOBILE AB [SE/SE]; S-461 80 Trollhättan, SE (AllExceptUS)
JIEWERTZ, Sten [SE/SE]; SE (UsOnly)
ECKERBORN, Jan [SE/DE]; DE (UsOnly)
Inventors:
JIEWERTZ, Sten; SE
ECKERBORN, Jan; DE
Agent:
HEDLUND, Alf; Saab Automobile AB S-461 80 Trollhättan, SE
Priority Data:
9503722-224.10.1995SE
Title (EN) A METHOD OF IDENTIFYING THE COMBUSTION CHAMBER OF A COMBUSTION ENGINE THAT IS IN THE COMPRESSION STROKE, A METHOD OF STARTING A COMBUSTION ENGINE, AND A DEVICE FOR A COMBUSTION ENGINE
(FR) PROCEDE D'IDENTIFICATION DE LA CHAMBRE DE COMBUSTION D'UN MOTEUR A COMBUSTION INTERNE AU COURS DE LA COURSE DE COMPRESSION, PROCEDE DE DEMARRAGE D'UN MOTEUR A COMBUSTION INTERNE ET DISPOSITIF POUR UN TEL MOTEUR
Abstract:
(EN) A combustion engine comprises at least two combustion chambers and an ignition system having a spark device (11, 13) forming an electrode gap and a charging member (20) for accumulating the electrical energy necessary for generating a spark in the electrode gap. The combustion chambers are in the compression stroke according to a determined sequence. During a first engine revolution, high voltage pulses are supplied with a high frequency to all spark devices (11, 13). The spark voltage in the electrode gap of each spark device (11, 13) is measured by each spark. Based on the measured spark voltage of the different spark devices, the combustion chamber that first will be in the compression stroke is determined by means of an electronic control unit (3). Based on said sequence and the knowledge of the combustion chamber that first is in the compression stroke, fuel is injected in the combustion chamber that next will be in the compression stroke.
(FR) Un moteur à combustion interne comprend au moins deux chambres de combustion et un système d'allumage comprenant des bougies d'allumage (11, 13) formant un écartement entre électrodes, et un élément de charge (20) servant à accumuler l'énergie électrique nécessaire à la production d'une étincelle entre les électrodes. Les chambres de combustion se trouvent dans la course de compression selon une séquence déterminée. Pendant un premier tour du moteur, des impulsions de haute tension sont fournies à haute fréquence à toutes les bougies d'allumage (11, 13). La tension d'étincelle dans l'espace entre électrodes de chaque bougie (11, 13) est mesurée par chaque étincelle. Sur la base de la tension d'étincelle mesurée des différentes bougies, on détermine quelle est la chambre de combustion qui sera la première dans la course de compression, au moyen d'une unité électronique de commande (3). On se fond sur la séquence précitée, une fois déterminée, pour injecter du carburant dans la chambre de combustion qui sera la prochaine à se trouver dans la course de compression.
Designated States: CN, DE, JP, KR, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US6029631JPH11513776 DE000019681614