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1. WO2017077567 - ELECTRIC POWER STEERING DEVICE AND METHOD FOR CONTROLLING SAME

Publication Number WO/2017/077567
Publication Date 11.05.2017
International Application No. PCT/JP2015/080892
International Filing Date 02.11.2015
IPC
H02P 27/06 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
27Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
04using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06using dc to ac converters or inverters
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
CPC
B62D 5/046
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
0457characterised by control features of the drive means as such
046Controlling the motor
B62D 5/0463
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
0457characterised by control features of the drive means as such
046Controlling the motor
0463for generating assisting torque
B62D 5/0484
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
0457characterised by control features of the drive means as such
0481monitoring the steering system, e.g. failures
0484for reaction to failures, e.g. limp home
B62D 5/0487
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
0457characterised by control features of the drive means as such
0481monitoring the steering system, e.g. failures
0487detecting motor faults
H02P 21/0089
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
21Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
0085specially adapted for high speeds, e.g. above nominal speed
0089using field weakening
H02P 21/05
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
21Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
05specially adapted for damping motor oscillations, e.g. for reducing hunting
Applicants
  • 三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP]/[JP]
Inventors
  • 古川 晃 FURUKAWA, Akira
  • 川野 佑 KAWANO, Yu
Agents
  • 曾我 道治 SOGA, Michiharu
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRIC POWER STEERING DEVICE AND METHOD FOR CONTROLLING SAME
(FR) DISPOSITIF DE DIRECTION À ASSISTANCE ÉLECTRIQUE ET PROCÉDÉ DE COMMANDE DE CE DERNIER
(JA) 電動パワーステアリング装置およびその制御方法
Abstract
(EN) The purpose of the present invention is to obtain an electric power steering device capable of, when a failure occurs in one motor winding set, continuing control while maintaining driver's steering feeling in a good state. When detecting a failure in each unit of the electric power steering device and continuing control in accordance with the detected failure by a field weakening control using a normal motor winding and a normal inverter circuit, a control unit restricts d-axis current in accordance with a torque ripple occurring in a vehicle's wheel with respect to the field weakening control in a state in which a failure does not occur.
(FR) La présente invention vise à obtenir un dispositif de direction à assistance électrique capable, lorsqu'une panne survient dans un ensemble d'enroulement de moteur, de continuer à commander tout en maintenant, à un état satisfaisant, la sensation de pilotage du conducteur. Lors de la détection d'une panne dans chaque unité du dispositif de direction à assistance électrique et de la poursuite de la commande avec la panne détectée au moyen d’une commande d'affaiblissement de champ utilisant un enroulement de moteur normal et un circuit inverseur normal, une unité de commande limite le courant d'axe d en fonction d'une fluctuation de couple se produisant dans une roue du véhicule par rapport à la commande d'affaiblissement de champ dans un état dans lequel une panne ne se produit pas.
(JA) 一方のモータ巻線組の故障発生時において、ドライバの操舵フィーリングを良好な状態に保ちつつ、制御を継続することができる電動パワーステアリング装置を得る。制御部は、電動パワーステアリング装置の各部の故障を検出し、検出された故障に応じて、正常なモータ巻線とインバータ回路とにより、弱め界磁制御により制御を継続する場合に、故障が発生していない状態における弱め界磁制御に対して、車両のハンドルに発生するトルクリップルに応じたd軸電流の制限を行う。
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