公开(公告)号：US20150145448A1

公开(公告)日：2015-05-28

申请号：US14553074

申请日：2014-11-25

Applicant: DENSO CORPORATION

Inventor： Yasuhiko MUKAI ,  Hideki KABUNE

IPC: H02P6/12

CPC classification number: H02P6/12 ,  B62D5/0487 ,  B62D5/0493 ,  H02P29/0241

Abstract: A rotating electric machine driver apparatus and an electric power steering apparatus using the same includes a controller section that obtains a detected current value and generates a high-side instruction signal and a low-side instruction signal to switch an upper arm element and a lower arm element based on the detected current value. An abnormality detector determines a simul-OFF abnormality which is an abnormality of a pair made up of the high-side and low-side instruction signals being simultaneously switched off based on a condition that switching off of the high-side instruction signal for the upper arm element and the low-side instruction signal for the lower arm element pair continues for at least a simul-OFF abnormality determination time. In such manner, the simul-OFF abnormality of the instruction signals is detected.

Abstract translation: 旋转电机驱动装置及使用该驱动装置的电动动力转向装置包括：控制部，其获取检测到的电流值，生成高侧指示信号和低侧指示信号，切换上臂元件和下臂 基于检测到的当前值。 异常检测器基于关闭上侧的高侧指示信号的条件，确定由同时切断的高侧和低侧指示信号构成的一对异常的同步异常 臂元件和下臂元件对的低侧指令信号至少持续到同步异常判定时间。 以这种方式，检测到指令信号的同时异常。

公开(公告)号：US20150029673A1

公开(公告)日：2015-01-29

申请号：US14336346

申请日：2014-07-21

Applicant: DENSO CORPORATION

Inventor： Yuta KADOIKE ,  Hideki KABUNE ,  Toshihisa YAMAMOTO

IPC: H05K1/02 ,  H05K1/18

CPC classification number: H05K1/0203 ,  B62D5/0406 ,  H01L2224/40245 ,  H01L2924/181 ,  H01L2924/1815 ,  H05K1/181 ,  H05K3/284 ,  H05K7/20454 ,  H01L2924/00012

Abstract: An electronic element surface-mounted on a substrate has a leg part that protrudes from a back surface of the electronic element toward a heat sink along a peripheral portion of a back electrode. As such, if the substrate warps, the protruding leg part abuts a heat reception surface of the heat sink, thereby preserving an insulation gap between the back electrode and the heat sink. As a result, short-circuiting is prevented.

Abstract translation: 表面安装在基板上的电子元件具有从电子元件的背面朝着背电极的周边部分朝向散热器突出的支脚部。 因此，如果基板翘曲，则突出的腿部邻接散热片的热接收面，从而保持背面电极和散热器之间的绝缘间隙。 结果，防止短路。

公开(公告)号：US20140130612A1

公开(公告)日：2014-05-15

申请号：US14063136

申请日：2013-10-25

Applicant: DENSO CORPORATION

Inventor： Yoshiki TAKAHASHI ,  Shigetoshi FUKAYA ,  Hideki KABUNE

IPC: G01L3/10 ,  G01B7/30

CPC classification number: G01L3/104 ,  B62D6/10

Abstract: A torque sensor has a magnetic sensor, which is composed of a first magnetic detecting element, a second magnetic detecting element and a comparator. The first magnetic detecting element outputs an output signal of a provisional detection value, while the second magnetic detecting element outputs an output signal of a reference value. The comparator compares the provisional detection value and the reference value and outputs the provisional detection value as an authorized detection value, when a difference value between the provisional detection value and the reference value is smaller than a predetermined threshold value.

Abstract translation: 扭矩传感器具有由第一磁检测元件，第二磁检测元件和比较器构成的磁传感器。 第一磁检测元件输出临时检测值的输出信号，而第二磁检测元件输出参考值的输出信号。 当临时检测值和参考值之间的差小于预定阈值时，比较器比较临时检测值和参考值，并将临时检测值作为授权检测值输出。

公开(公告)号：US20130257328A1

公开(公告)日：2013-10-03

申请号：US13855309

申请日：2013-04-02

Applicant: DENSO CORPORATION

Inventor： Kanta ARAI ,  Hideki KABUNE ,  Yasuhiko MUKAI

IPC: H02P29/02

CPC classification number: H02P29/022 ,  H02P25/22 ,  H02P29/0241 ,  H02P29/028 ,  H02P29/032

Abstract: When a failure detection part detects a failure in an inverter circuit in a first power supply system, a drive control part stops the inverter circuit from driving a motor. An on/off control part turns off a first power supply relay of a power supply on/off part. Under a state that the inverter circuit stops a motor driving operation, a first coil set of the motor generates an induced voltage by rotation caused by an external force. The induced voltage is regenerated to a battery from the inverter circuit through a second power supply relay and a parasitic diode of the first power supply relay. Thus, circuit elements in the power supply system, which is failing, are protected from breaking down.

Abstract translation: 当故障检测部分检测到第一电源系统中的逆变器电路中的故障时，驱动控制部分停止逆变器电路驱动电动机。 开/关控制部分关闭电源开/关部分的第一电源继电器。 在逆变器电路停止电动机驱动动作的状态下，电动机的第一线圈组由外力产生旋转感应电压。 感应电压通过第二电源继电器和第一电源继电器的寄生二极管从逆变器电路再生成电池。 因此，电源系统中的电路元件故障不受破坏。