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1. (WO2018041584) DETERMINING CYLINDER SWITCHING OF AN INTERNAL COMBUSTION ENGINE
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Pub. No.: WO/2018/041584 International Application No.: PCT/EP2017/070279
Publication Date: 08.03.2018 International Filing Date: 10.08.2017
IPC:
F02D 41/14 (2006.01) ,F02D 41/00 (2006.01) ,F02N 11/04 (2006.01) ,G01P 3/48 (2006.01) ,G01M 15/04 (2006.01) ,H02P 9/00 (2006.01) ,H02P 29/024 (2016.01) ,F02D 41/16 (2006.01) ,F16D 48/10 (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
14
Introducing closed-loop corrections
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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
N
STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
11
Starting of engines by means of electric motors
04
the motors being associated with current generators
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
3
Measuring linear or angular speed; Measuring differences of linear or angular speeds
42
Devices characterised by the use of electric or magnetic means
44
for measuring angular speed
48
by measuring frequency of generated current or voltage
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
15
Testing of engines
04
Testing of internal-combustion engines, e.g. diagnostic testing of piston engines
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
9
Arrangements for controlling electric generators for the purpose of obtaining a desired output
[IPC code unknown for H02P 29/024]
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
14
Introducing closed-loop corrections
16
for idling
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
48
External control of clutches
06
Control by electric or electronic means, e.g. of fluid pressure
10
Preventing unintentional or unsafe engagement
Applicants:
ROBERT BOSCH GMBH [DE/DE]; Postfach 30 02 20 70442 Stuttgart, DE
Inventors:
MEHRINGER, Paul; DE
MAAS, Joerg; DE
SCHULZ, Udo; DE
FISCHER, Wolfgang; DE
ERSEK, Zoltan; DE
Priority Data:
10 2016 216 517.801.09.2016DE
Title (EN) DETERMINING CYLINDER SWITCHING OF AN INTERNAL COMBUSTION ENGINE
(FR) DÉTERMINATION DE L'ÉTAT D'ACTIVATION DES CYLINDRES D'UN MOTEUR À COMBUSTION INTERNE
(DE) ERMITTELN EINER ZYLINDERBESCHALTUNG EINER BRENNKRAFTMASCHINE
Abstract:
(EN) The invention relates to a method for determining cylinder switching (128a) in an internal combustion engine (112), by means of a control unit, preferably a regulator (120) of an electric machine (114) coupled to the internal combustion engine (112). Said method comprises the following steps: determining the temporal course of a rotational speed (122) of an electric machine (114) coupled to the internal combustion engine (112); determining at least one speed pattern (128), produced by the internal combustion engine (112), from the temporal course of the rotational speed (122), the speed pattern (128) having an oscillation (O) superimposed on the temporal course of the mean value (DMD) of the rotational speed (122); then the internal combustion engine (112) is closed to cylinder switching (128a) when a characteristic change in the oscillation (O) is detected for the cylinder switching (128a). Furthermore, the invention relates to a corresponding computing unit (118) which is configured to carry out the method, to an electric machine (114) comprising the computing unit (118) and to a corresponding computer program for enabling the claimed computing unit (118) to carry out said method.
(FR) Procédé de détermination de l'état d'activation des cylindres (128a) dans un moteur à combustion interne (112) au moyen d'une unité de commande, de préférence un régulateur (120) d'une machine électrique (114) couplée au moteur à combustion interne (112), présentant les étapes suivantes : détermination de la courbe temporelle d'un régime (122) d'une machine électrique (114) couplée au moteur à combustion interne (112), détermination, à partir de la courbe temporelle du régime (122), d'un modèle de régime (128) produit par le moteur à combustion interne (112), ledit modèle de régime (128) présentant une oscillation (O) superposée à la courbe temporelle de la valeur moyenne (DMD) du régime (122). L'état d'activation des cylindres (128a) du moteur à combustion interne (112) est déduit de la détection d'une modification caractéristique de l'oscillation (O), caractérisant l'état d'activation des cylindres (128a). L'invention concerne en outre une unité de calcul (118) correspondante conçue pour mettre en oeuvre ledit procédé, une machine électrique (114) comportant ladite unité de calcul (118) ainsi qu'un programme informatique correspondant pour commander la mise en oeuvre du procédé selon l'invention par l'unité de calcul (118) selon l'invention.
(DE) Verfahren zum Ermitteln einer Zylinderbeschaltung (128a) bei einer Brennkraftmaschine (112), mittels einer Steuereinheit, vorzugsweise eines Reglers (120) einer mit der Brennkraftmaschine (112) gekoppelten elektrischen Maschine (114), aufweisend die Schritte: Ermitteln des zeitlichen Verlaufs einer Drehzahl (122) einer an die Brennkraftmaschine (112) gekoppelten elektrischen Maschine (114), Ermitteln zumindest eines durch die Brennkraftmaschine (112) bewirkten Drehzahlmusters (128) aus dem zeitlichen Verlauf der Drehzahl (122), wobei das Drehzahlmuster (128) eine dem zeitlichen Verlauf des Mittelwerts (DMD) der Drehzahl (122) überlagerten Oszillation (O) aufweist, wobei dann auf eine Zylinderbeschaltung (128a) der Brennkraftmaschine (112) geschlossen wird, wenn eine für eine Zylinderbeschaltung (128a) charakteristischer Veränderung der Oszillation (O) erkannt wird. Des Weiteren eine entsprechende Recheneinheit (118), die zur Durchführung des Verfahrens eingerichtet ist, eine die Recheneinheit (118) aufweisende elektrische Maschine (114), sowie ein entsprechendes Computerprogramm zur Veranlassung der erfindungsgemäßen Recheneinheit (118) zur Durchführung des erfindungsgemäßen Verfahrens.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)