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1. (WO2019044112) POWER CONVERSION DEVICE, MOTOR DRIVE UNIT AND ELECTRIC POWER STEERING DEVICE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/044112 International Application No.: PCT/JP2018/022271
Publication Date: 07.03.2019 International Filing Date: 11.06.2018
IPC:
H02M 7/48 (2007.01) ,B60R 16/02 (2006.01) ,B62D 5/04 (2006.01) ,B62D 6/00 (2006.01) ,H02P 27/06 (2006.01) ,B62D 101/00 (2006.01) ,B62D 119/00 (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
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
16
Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
02
electric
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
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
101
Road speed
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
119
Steering wheel torque
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:
小池上 貴 KOIKEGAMI,Takashi; JP
中田 雄飛 NAKADA,Yuhi; JP
菊一 貴宏 KIKUICHI,Takahiro; JP
Priority Data:
2017-16797631.08.2017JP
Title (EN) POWER CONVERSION DEVICE, MOTOR DRIVE UNIT AND ELECTRIC POWER STEERING DEVICE
(FR) DISPOSITIF DE CONVERSION DE PUISSANCE, UNITÉ D'ENTRAÎNEMENT DE MOTEUR, ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE
(JA) 電力変換装置、モータ駆動ユニットおよび電動パワーステアリング装置
Abstract:
(EN) In order to identify which of the switching elements of an inverter has failed, this power conversion device (100) is provided with a first inverter (120) which is connected to one end of the winding of each phase of a motor (200), a second inverter (130) which is connected to the other end of the winding of each phase, and a control circuit (300) which controls operation of the first and second inverters (120, 130). The control circuit (300) configures a neutral point (N1) in the first inverter (120), and diagnoses the presence or absence of a failure in the first and second inverters (120, 130) by applying a voltage to the path connecting the high side of the second inverter (130), the first phase winding (M1), the neutral point (N1), the second phase winding (M2), and the low side of the second inverter (130).
(FR) Afin d'identifier lequel des éléments de commutation d'un onduleur est défaillant, le dispositif de conversion de puissance (100) selon l'invention est pourvu d'un premier onduleur (120) qui est connecté à une extrémité de l'enroulement de chaque phase d'un moteur (200), un second onduleur (130) qui est connecté à l'autre extrémité de l'enroulement de chaque phase, et un circuit de commande (300) qui commande le fonctionnement des premier et second onduleurs (120, 130). Le circuit de commande (300) configure un point neutre (N1) dans le premier onduleur (120), et diagnostique la présence ou l'absence d'une défaillance dans les premier et second onduleurs (120, 130) en appliquant une tension au trajet connectant le côté haut du second onduleur (130), le premier enroulement de phase (M1), le point neutre (N1), le second enroulement de phase (M2), et le côté bas du second onduleur (130).
(JA) インバータが備えるスイッチング素子のうちのどのスイッチング素子が故障したのかを特定する。実施形態に係る電力変換装置(100)は、モータ(200)の各相の巻線の一端に接続される第1インバータ(120)と、各相の巻線の他端に接続される第2インバータ(130)と、第1および第2インバータ(120、130)の動作を制御する制御回路(300)とを備える。制御回路(300)は、第1インバータ(120)に中性点(N1)を構成させ、第2インバータ(130)のハイサイド、第1相の巻線(M1)、中性点(N1)、第2相の巻線(M2)、および第2インバータ(130)のローサイドが繋がる経路に電圧を印加して、第1および第2インバータ(120、130)の故障の有無を診断する。
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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)