公开(公告)号：US09762050B2

公开(公告)日：2017-09-12

申请号：US13965266

申请日：2013-08-13

Applicant: DENSO CORPORATION

Inventor： Nobuhiko Uryu ,  Naoki Matsuda

IPC: H02H7/122 ,  B62D5/04

CPC classification number: H02H7/1222 ,  B62D5/0403 ,  B62D5/046 ,  B62D5/0484 ,  B62D5/0487

Abstract: A motor drive device for driving a motor, which has a plurality of winding pairs, includes a plurality of inverter units for the plurality of winding pairs. The inverter units are coupled in parallel to a power source. A plurality of capacitors provided for the plurality of inverter units, and a plurality of power relays are disposed between the power supply and the inverter units. In particular, a power relay is provided for each of the inverter units. A control unit detects a short failure of the power relay, and simultaneously turns ON the power relays that do not have a short failure. In such manner, damage to the power relays as well as damage to other electronic components of the motor driver device due to a large electric current is prevented.

公开(公告)号：US08981706B2

公开(公告)日：2015-03-17

申请号：US13903358

申请日：2013-05-28

Applicant: Denso Corporation

Inventor： Nobuhiko Uryu

IPC: H02P27/04 ,  H02K11/00 ,  B62D5/04 ,  H02P29/02 ,  H02P5/52 ,  H02H7/08 ,  H02H7/122

CPC classification number: H02K11/001 ,  B62D5/0403 ,  B62D5/046 ,  B62D5/0484 ,  B62D5/0487 ,  H02H7/0838 ,  H02H7/122 ,  H02K11/20 ,  H02P5/56 ,  H02P29/0241

Abstract: An electric motor drive apparatus includes multiple inverter sections arranged corresponding to winding sets of a motor, multiple relays that controls power supplies to the inverter sections, and a control unit. Each inverter section and corresponding winding set are referred to as a system. The control unit includes an obtaining section that obtains a winding current, a determination section that determines a fault occurrence, a specifying section that specifies a faulty system in which the fault occurs, an interrupting section that controls the relay corresponding to the faulty system to interrupt the power supply to the faulty system, and a vibrating section that controls the inverter section of a properly-operating system to add a vibration to an output torque from the electric motor. The vibrating section gradually increases a vibration component of the vibration added to the output torque from the electric motor.

Abstract translation: 电动机驱动装置包括与电动机的绕组组对应的多个逆变器部分，控制向逆变器部分供电的多个继电器和控制单元。 每个逆变器部分和相应的绕组集合被称为系统。 控制单元包括获取绕组电流的获取部分，确定故障发生的确定部分，指定故障发生的故障系统的指定部分，控制与故障系统对应的继电器中断的中断部分 对故障系统的电源，以及控制正常操作系统的逆变器部分以对来自电动机的输出扭矩增加振动的振动部分。 振动部逐渐增加从电动机输出的扭矩所附加的振动的振动分量。

公开(公告)号：US08897967B2

公开(公告)日：2014-11-25

申请号：US13738399

申请日：2013-01-10

Applicant: Denso Corporation

Inventor： Nobuhiko Uryu

IPC: B62D5/04 ,  B62D6/00

CPC classification number: B62D5/0484 ,  B62D5/0463 ,  B62D5/0487 ,  B62D6/00

Abstract: The electric power steering apparatus has a plurality of power systems each including an inverter apparatus provided corresponding to a plurality of wiring sets of a motor thereof. The control section calculates the assist current to be supplied to the motor using a one power system failure-state map when the inverter apparatus or its corresponding wiring set of one of the power systems fails, or using a vehicle speed detection failure-state map when there is a failure in detecting the vehicle speed. The assist current limit value in the one power system failure-state map and the assist current limit value in the vehicle speed detection failure-state map are set to the same value.

Abstract translation: 电力转向装置具有多个电力系统，每个电力系统包括对应于电动机的多个配线组而设置的逆变器装置。 控制部在逆变器装置或者其中一个电力系统的对应配线组发生故障时使用一个电力系统故障状态映像来计算向电动机供给的辅助电流，或者使用车速检测失败状态映射 检测车速有故障。 一个电力系统故障状态图中的辅助电流极限值和车速检测失败状态映射中的辅助电流极限值被设定为相同的值。

公开(公告)号：US09231449B2

公开(公告)日：2016-01-05

申请号：US13956843

申请日：2013-08-01

Applicant: DENSO CORPORATION

Inventor： Nobuhiko Uryu ,  Masashi Yamasaki

IPC: H02K5/15 ,  H02K7/11 ,  H02K5/04 ,  H02K11/00 ,  H02K7/116

CPC classification number: H02K5/04 ,  H02K5/15 ,  H02K7/116 ,  H02K11/0094 ,  H02K11/33

Abstract: A rotating electric machine for driving a drive object is provided. The rotating electric machine includes a motor case, a stator, a winding, a rotor, a shaft, a base cap, an end cap, an output rod, base cap holes, end cap holes, and through bolts. The base cap has base cap flanges formed on a circumferential edge and extending radially-outward beyond an outer wall of the motor case. The end cap has end cap flanges formed on a circumferential edge and extending radially-outward beyond the outer wall of the motor case. Base cap holes are formed on the base cap flanges and end cap holes in axial alignment with the base cap holes are formed on the end cap flanges. Through bolts fasten the base cap flanges to the end cap flanges.

Abstract translation: 提供一种用于驱动驱动对象的旋转电机。 旋转电机包括电动机壳体，定子，绕组，转子，轴，基座盖，端盖，输出杆，底盖孔，端盖孔和贯通螺栓。 底盖具有形成在周向边缘上并且径向向外延伸超过电动机壳体的外壁的底盖凸缘。 端盖具有形成在圆周边缘上并且径向向外延伸超过电动机壳体的外壁的端盖凸缘。 基座盖孔形成在基座凸缘上，并且端盖孔与轴承座孔轴向对齐，底座盖孔形成在端盖法兰上。 通过螺栓将基座法兰固定到端盖法兰上。

公开(公告)号：US08941337B2

公开(公告)日：2015-01-27

申请号：US13965301

申请日：2013-08-13

Applicant: Denso Corporation

Inventor： Nobuhiko Uryu ,  Naoki Matsuda ,  Yoshihide Kuroda

IPC: B60K6/36 ,  H02K7/10 ,  H02P27/06 ,  H02M7/48 ,  B62D5/04

CPC classification number: H02P27/06 ,  B62D5/0484 ,  B62D5/0487 ,  H02M7/48

Abstract: In a motor driving device, a first relay portion is connected between a power source and an inverter portion, a second relay portion is connected between the first relay portion and the inverter portion, and a motor relay portion is connected between the inverter portion and a winding group of a motor. Inverter pre-driver circuits respectively drive switching elements of the inverter portion. A first pre-driver circuit drives the first relay portion. A second pre-driver circuit drives the second relay portion and the motor relay portion. A controller controls driving of the inverter portion, the first relay portion, the second relay portion, and the motor relay portion, and detects a failure of the first relay portion, the second relay portion, and the motor relay portion.

Abstract translation: 在电动机驱动装置中，第一继电器部分连接在电源和逆变器部分之间，第二继电器部分连接在第一继电器部分和逆变器部分之间，并且电动机中继部分连接在逆变器部分和逆变器部分之间 绕组组电机。 逆变器预驱动器电路分别驱动逆变器部分的开关元件。 第一预驱动器电路驱动第一继电器部分。 第二预驱动器电路驱动第二继电器部分和马达继电器部分。 控制器控制逆变器部分，第一继电器部分，第二继电器部分和电动机中继部分的驱动，并且检测第一继电器部分，第二继电器部分和电动机中继部分的故障。