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1. (WO2013113485) CONTROL OF AN INDUCTIVE LOAD BY PULSE WIDTH MODULATION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/113485 International Application No.: PCT/EP2013/000229
Publication Date: 08.08.2013 International Filing Date: 25.01.2013
IPC:
F02M 25/07 (2006.01) ,H01F 7/18 (2006.01) ,H01H 47/32 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
25
Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel, or fuel-air mixture
06
adding lubricant vapours or exhaust gases
07
adding exhaust gases
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7
Magnets
06
Electromagnets; Actuators including electromagnets
08
with armatures
18
Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
47
Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
22
for supplying energising current for relay coil
32
Energising current supplied by semiconductor device
Applicants:
CONTINENTAL AUTOMOTIVE FRANCE [FR/FR]; Intellectual Property 1, Avenue Paul Ourliac F-31100 Toulouse, FR
CONTINENTAL AUTOMOTIVE GMBH [DE/DE]; Vahrenwalder Straße 9 30165 Hannover, DE
Inventors:
PASQUALETTO, Angélo; FR
Common
Representative:
CONTINENTAL AUTOMOTIVE FRANCE [FR/FR]; Intellectual Property 1, Avenue Paul Ourliac F-31100 Toulouse, FR
Priority Data:
120028331.01.2012FR
Title (EN) CONTROL OF AN INDUCTIVE LOAD BY PULSE WIDTH MODULATION
(FR) COMMANDE D'UNE CHARGE INDUCTIVE PAR MODULATION DE LARGEUR D'IMPULSION
Abstract:
(EN) The invention relates to the control of an inductive load by pulse width modulation from a periodic setpoint control signal having a given setpoint duty cycle. The setpoint control signal is, at each period of said setpoint control signal, in a first logic state determined from the high and low logic states during at least a first duration and in the other logic state during the rest of the period. Control signals (S21, S31) activating the inductive load are generated from the setpoint control signal (PWM). Using a first counter (3), the first duration (t0) is determined from the setpoint control signal (PWM). Using a second counter (4), a second duration (t0-td2) is determined during which a logic signal (L_Out) corresponding to an effective control signal (V,OUT) observed at the load (O1) is in the first determined logic state. The second duration, increased by the inertia td2, is slaved to the first duration. Therefore an effective duty cycle is equal to a setpoint duty cycle.
(FR) L'invention se rapporte à la commande d'une charge inductive par modulation de largeur d'impulsion à partir d'un signal de commande de consigne périodique ayant un rapport cyclique de consigne donné. Le signal de commande de consigne est, à chaque période dudit signal de commande de consigne, dans un premier état logique déterminé parmi les états logiques haut et bas pendant au moins une première durée et dans l'autre état logique pendant le reste de la période. On génère des signaux de commande (S21, S31) activant la charge inductive, à partir du signal de commande de consigne (PWM). On détermine, à l'aide d'un premier compteur (3), la première durée (t0) à partir du signal de commande de consigne (PWM). On détermine, à partir d'un second compteur (4), une seconde durée (t0-td2) pendant laquelle un signal logique (L_Out) correspondant à un signal de commande effectif (V,OUT) observé au niveau de la charge (O1), est dans le premier état logique déterminé. Et on asservit la seconde durée, augmentée de l'inertie td2, à la première durée. Ainsi, un rapport cyclique effectif est égal à un rapport cyclique de consigne.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)