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1. WO2019220782 - FAILURE DIAGNOSTIC METHOD, POWER CONVERTING DEVICE, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE

Publication Number WO/2019/220782
Publication Date 21.11.2019
International Application No. PCT/JP2019/013062
International Filing Date 27.03.2019
IPC
H02M 7/48 2007.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
B62D 5/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
H02M 1/00 2007.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
1Details of apparatus for conversion
CPC
B62D 5/04
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
H02M 1/00
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
1Details of apparatus for conversion
H02M 7/48
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
Applicants
  • 日本電産株式会社 NIDEC CORPORATION [JP]/[JP]
Inventors
  • ガデリー アハマッド GHADERI, Ahmad
Priority Data
2018-09382615.05.2018JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) FAILURE DIAGNOSTIC METHOD, POWER CONVERTING DEVICE, MOTOR MODULE, AND ELECTRIC POWER STEERING DEVICE
(FR) PROCÉDÉ DE DIAGNOSTIC DE DÉFAILLANCE, DISPOSITIF DE CONVERSION DE COURANT, MODULE MOTEUR ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE
(JA) 故障診断方法、電力変換装置、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) This failure diagnostic method according to an embodiment of the present disclosure diagnoses a failure of a power converting device 1000 which converts power from a power source 101 into power to be supplied to a motor 200. The failure diagnostic method includes: a step for determining whether there is a failed phase among one or more phases; a step for determining whether there is a failed part among the high side and the low side of at least one H-bridge; a step for determining whether there is a failed inverter among a first inverter and a second inverter; and a step for determining whether there is a failed switching element on the basis of the determination result of whether there is a failed phase, the determination result of whether there is a failed part, and the determination result of whether there is a failed inverter.
(FR) Selon un mode de réalisation, la présente invention concerne un procédé de diagnostic de défaillance qui diagnostique une défaillance d'un dispositif de conversion de puissance 1000 qui convertit de la puissance provenant d'une source d'alimentation 101 en puissance à fournir à un moteur 200. Le procédé de diagnostic de défaillance comprend : une étape consistant à déterminer s'il existe une phase défaillante parmi une ou plusieurs phases ; une étape consistant à déterminer s'il existe une partie défaillante parmi le côté haut et le côté bas d'au moins un pont en H ; une étape consistant à déterminer s'il existe un onduleur défaillant parmi un premier onduleur et un second onduleur ; et une étape consistant à déterminer s'il existe un élément de commutation défaillant sur la base du résultat de détermination quant à l'existence d'une phase défaillante, du résultat de détermination quant à l'existence d'une partie défaillante et du résultat de détermination quant à l'existence d'un onduleur défaillant.
(JA) 本開示の実施形態に係る故障診断方法は、電源101からの電力をモータ200に供給する電力に変換する電力変換装置1000の故障を診断する。故障診断方法は、少なくとも一相の中に故障した相があるか判定するステップと、少なくとも1つのHブリッジのハイサイドおよびローサイドの中に故障したパートがあるか判定するステップと、第1インバータおよび第2インバータの中に故障したインバータがあるか判定するステップと、故障した相があるかの判定結果、故障したパートがあるかの判定結果および故障したインバータがあるかの判定結果に基づいて、故障したスイッチ素子があるか判定するステップと、を包含する。
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