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1. (WO2019049459) METHOD FOR CONTROLLING INVERTER, MOTOR DRIVE UNIT, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE
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Pub. No.: WO/2019/049459 International Application No.: PCT/JP2018/022923
Publication Date: 14.03.2019 International Filing Date: 15.06.2018
IPC:
H02M 7/48 (2007.01) ,B62D 5/04 (2006.01) ,B62D 6/00 (2006.01) ,H02P 27/08 (2006.01) ,B62D 107/00 (2006.01) ,B62D 137/00 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42
Conversion of dc power input into ac power output without possibility of reversal
44
by static converters
48
using discharge tubes with control electrode or semiconductor devices with control electrode
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
5
Power-assisted or power-driven steering
04
electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
6
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
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
27
Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage
04
using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06
using dc to ac converters or inverters
08
with pulse width modulation
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
107
Temperature
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
137
Conditions not specified in groups B62D101/-B62D135/87
Applicants:
日本電産株式会社 NIDEC CORPORATION [JP/JP]; 京都府京都市南区久世殿城町338番地 338 Kuzetonoshiro-cho, Minami-ku, Kyoto-shi, Kyoto 6018205, JP
Inventors:
北村 高志 KITAMURA,Takashi; JP
Priority Data:
2017-17229207.09.2017JP
Title (EN) METHOD FOR CONTROLLING INVERTER, MOTOR DRIVE UNIT, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE
(FR) PROCÉDÉ DE COMMANDE D'ONDULEUR, UNITÉ D'ENTRAÎNEMENT DE MOTEUR, MODULE DE MOTEUR ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE
(JA) インバータの制御方法、モータ駆動ユニット、モータモジュールおよび電動パワーステアリング装置
Abstract:
(EN) Provided is a method for controlling an inverter which enables a greater amount of electric current to flow through the inverter by appropriately suppressing the generation of heat by a switch element. This method for controlling an inverter includes: an electric current acquiring step S100 of acquiring phase currents; an estimating step S200 of estimating an average electric current per cycle of a switching operation, flowing through each of a plurality of switch elements in the inverter; an updating step S300 of determining, for each phase, an optimal distribution of time ratios of a plurality of switching patterns, on the basis of the estimated value of the average electric current; and a generating step S400 of generating a control signal for controlling the switching operations of the plurality of switch elements on the basis of the optimal distributed values of the time ratios; wherein the electric current acquiring step, the estimating step, the updating step and the generating step are carried out repeatedly.
(FR) Cette invention concerne un procédé de commande d'un onduleur qui permet à une plus grande quantité de courant électrique de circuler à travers l'onduleur en supprimant de manière appropriée la génération de chaleur par un élément de commutation. Ce procédé de commande d'un onduleur comprend : une étape d'acquisition de courant électrique (S100) consistant à acquérir des courants de phase ; une étape d'estimation (S200) consistant à estimer un courant électrique moyen par cycle d'une opération de commutation, circulant à travers chacun d'une pluralité d'éléments de commutation dans l'onduleur ; une étape de mise à jour (S300) consistant à déterminer, pour chaque phase, une répartition optimale de rapports de temps d'une pluralité de motifs de commutation, sur la base de la valeur estimée du courant électrique moyen ; et une étape de génération (S400) consistant à générer un signal de commande pour commander les opérations de commutation de la pluralité d'éléments de commutation sur la base des valeurs réparties optimales des rapports de temps. L'étape d'acquisition de courant électrique, l'étape d'estimation, l'étape de mise à jour et l'étape de génération sont exécutées de manière répétée.
(JA) スイッチ素子の発熱を適切に抑えてより多くの電流をインバータに流すことが可能なインバータの制御方法を提供する。インバータの制御方法は、相電流を獲得する電流獲得ステップS100と、インバータの複数のスイッチ素子の各々に流れる、スイッチング動作の1周期当たりの平均電流を推定する推定ステップS200と、平均電流の推定値に基づいて複数のスイッチングパターンの時間比の最適な配分を相毎に決定する更新ステップS300と、時間比の最適な配分の値に基づいて、複数のスイッチ素子のスイッチング動作を制御する制御信号を生成する生成ステップS400と、を包含し、電流獲得ステップ、推定ステップ、更新ステップおよび生成ステップを繰り返し実行する。
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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: Japanese (JA)
Filing Language: Japanese (JA)