公开(公告)号：US08941337B2

公开(公告)日：2015-01-27

申请号：US13965301

申请日：2013-08-13

申请人： Denso Corporation

发明人： Nobuhiko Uryu ,  Naoki Matsuda ,  Yoshihide Kuroda

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

CPC分类号： H02P27/06 ,  B62D5/0484 ,  B62D5/0487 ,  H02M7/48

摘要： 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.

摘要翻译： 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：US11511794B2

公开(公告)日：2022-11-29

申请号：US16874660

申请日：2020-05-14

申请人： DENSO CORPORATION

发明人： Toshihisa Yamamoto ,  Naoki Matsuda

IPC分类号： B62D5/04 ,  H03K19/20 ,  H02P27/06

摘要： An electric driver device provides a partial redundancy system that is at least partially redundant, or a full redundancy system. The electric driver device has a plurality of circuit systems. The electric driver device includes, in at least a part of the electric circuit, a common circuit extending over at least two of a plurality of circuit systems. The common circuit includes a power supply and/or a connection line that complements signals. At least one of the power supply circuit, an interface circuit, a power supply cutoff circuit, and a connector is not separated and independent from each other for each redundant circuit system.

公开(公告)号：US20230069997A1

公开(公告)日：2023-03-09

申请号：US18049413

申请日：2022-10-25

申请人： DENSO CORPORATION

发明人： Toshihisa Yamamoto ,  Naoki Matsuda

IPC分类号： B62D5/04 ,  H03K19/20 ,  H02P27/06

摘要： An electric driver device provides a partial redundancy system that is at least partially redundant, or a full redundancy system. The electric driver device has a plurality of circuit systems. The electric driver device includes, in at least a part of the electric circuit, a common circuit extending over at least two of a plurality of circuit systems. The common circuit includes a power supply and/or a connection line that complements signals. At least one of the power supply circuit, an interface circuit, a power supply cutoff circuit, and a connector is not separated and independent from each other for each redundant circuit system.

公开(公告)号：US09762050B2

公开(公告)日：2017-09-12

申请号：US13965266

申请日：2013-08-13

申请人： DENSO CORPORATION

发明人： Nobuhiko Uryu ,  Naoki Matsuda

IPC分类号： H02H7/122 ,  B62D5/04

CPC分类号： H02H7/1222 ,  B62D5/0403 ,  B62D5/046 ,  B62D5/0484 ,  B62D5/0487

摘要： 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.