公开(公告)号：US20140055059A1

公开(公告)日：2014-02-27

申请号：US13965301

申请日：2013-08-13

Applicant: DENSO CORPORATION

Inventor： Nobuhiko URYU ,  Naoki MATSUDA ,  Yoshihide KURODA

IPC: H02P27/06

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。

公开(公告)号：US20140055887A1

公开(公告)日：2014-02-27

申请号：US13965266

申请日：2013-08-13

Applicant: DENSO CORPORATION

Inventor： Nobuhiko URYU ,  Naoki MATSUDA

IPC: H02H7/122

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.

Abstract translation: 用于驱动具有多个绕组对的电动机的电动机驱动装置包括用于多个绕组对的多个逆变器单元。 逆变器单元并联耦合到电源。 设置在多个逆变器单元中的多个电容器和多个功率继电器设置在电源和逆变器单元之间。 特别地，为每个逆变器单元提供功率继电器。 控制单元检测到电力继电器的短路故障，同时打开不具有短路故障的功率继电器。 以这种方式，可以防止功率继电器的损坏以及由于大的电流而损坏电动机驱动装置的其它电子部件。