公开(公告)号：US20170363444A1

公开(公告)日：2017-12-21

申请号：US15544612

申请日：2016-01-13

Applicant: DENSO CORPORATION

Inventor： Takuya KAWAMURA ,  Hirofumi KINJOU ,  Toru WAKIMOTO ,  Hideaki NAKAYAMA ,  Masataka YOSHIMURA

IPC: G01D5/14

CPC classification number: G01D5/14 ,  G01D5/145 ,  G01D5/24485

Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.

公开(公告)号：US20200235688A1

公开(公告)日：2020-07-23

申请号：US16838324

申请日：2020-04-02

Applicant: DENSO CORPORATION

Inventor： Akeru ISHIKAWA ,  Takuya KAWAMURA ,  Hideaki NAKAYAMA ,  Koji IRIE

IPC: H02P21/22 ,  B60L9/18 ,  H02P9/04 ,  H02P25/024

Abstract: A control apparatus sets a value of the field current command and a value of the armature related command in accordance with drive information and the setting information stored in the storage unit; the value of the field current command and the value of the armature related command correspond to the obtained drive information. The control apparatus controls a field current flowing through the field winding to the set value of the field current command, and controls a current flowing through the armature winding or a voltage applied to the armature winding to the set value of the armature related command.

公开(公告)号：US20160204727A1

公开(公告)日：2016-07-14

申请号：US14919152

申请日：2015-10-21

Applicant: DENSO CORPORATION

Inventor： Kiyoshi FUJII ,  Hideaki NAKAYAMA

IPC: H02P21/22 ,  H02P21/00

CPC classification number: H02P21/22 ,  B60L15/025 ,  B60L15/2045 ,  B60L2220/54 ,  B60L2240/427 ,  B60L2240/527 ,  B60L2240/529 ,  H02P21/0003 ,  H02P21/20 ,  H02P25/22 ,  H02P27/06 ,  Y02T10/641 ,  Y02T10/643 ,  Y02T10/72 ,  Y02T10/7283

Abstract: There is provided a control unit (40) applied to a motor (10) that includes a rotor (12) having a field winding (11) and a rotor (13) having armature winding groups (10a, 10b) to control a field current passed through the field winding. Each of the armature winding groups is applied with a prescribed voltage. The field current is controlled so as to be a minimum field current value If_min with which a deviation between an amplitude of an induced voltage generated in the armature winding groups by rotation of the rotor, and an amplitude of the voltage applied to the armature winding groups becomes equal to or smaller than a prescribed value.

Abstract translation: 提供了一种应用于电动机（10）的控制单元（40），其包括具有励磁绕组（11）的转子（12）和具有电枢绕组组（10a，10b）的转子（13），以控制励磁电流 通过场地绕组。 每个电枢绕组组施加规定的电压。 励磁电流被控制为最小励磁电流值If_min，通过转子的旋转产生在电枢绕组中的感应电压的振幅与施加到电枢绕组组的电压的振幅之间的偏差 变得等于或小于规定值。

公开(公告)号：US20160248359A1

公开(公告)日：2016-08-25

申请号：US15018273

申请日：2016-02-08

Applicant: DENSO CORPORATION

Inventor： Kazutoshi SHIOMI ,  Hideaki NAKAYAMA ,  Kiyoshi FUJII

IPC: H02P21/22

CPC classification number: H02P25/022 ,  H02P9/08 ,  H02P25/024

Abstract: A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system. In a case in which the control device increases the d-axis current to generate a magnetic flux in a direction which is opposite to a direction to generate a magnetic flux by a field current, the control device gradually reduces the d-axis current during a predetermined period of time after increasing the d-axis current in the direction opposite to the direction to generate the magnetic flux by the field current.

Abstract translation: 旋转电机具有具有励磁绕组的转子和具有电枢绕组的定子。 控制装置调节在励磁绕组中流动的励磁电流和在电枢绕组中流动的电枢电流。 通过在d-q坐标系中使用具有d轴电流和q轴电流的电流矢量来表示在电枢绕组中流动的电枢电流。 在控制装置增加d轴电流以产生与通过励磁电流产生磁通的方向相反的方向产生磁通的情况下，控制装置在a轴期间逐渐减小d轴电流 在与通过励磁电流产生磁通的方向相反的方向上增加d轴电流之后的预定时间段。

公开(公告)号：US20150102782A1

公开(公告)日：2015-04-16

申请号：US14514583

申请日：2014-10-15

Applicant: DENSO CORPORATION

Inventor： Hideaki NAKAYAMA ,  Harumi HORIHATA

IPC: H02H7/06 ,  H02J11/00 ,  H02P9/10

CPC classification number: H02H7/067 ,  B60L11/1803 ,  B60L11/1868 ,  B60L15/025 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2240/529 ,  H02J7/0054 ,  H02J7/1423 ,  H02J7/1461 ,  H02J7/163 ,  H02J11/00 ,  H02J2007/143 ,  H02M1/32 ,  H02P9/10 ,  H02P9/48 ,  H02P2101/45 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7066

Abstract: A vehicle-mounted electric rotating machine includes a field winding wound on a rotor for magnetizing a field pole of the rotor, a stator winding for generating an AC voltage in accordance with a rotating magnetic field generated by the field pole, a power converter for converting the AC voltage to a DC voltage and outputting the DC voltage through a first power supply line connected to an output terminal thereof, and a load dump handling section for performing a load dump protection operation when a voltage of the output terminal of the power converter exceeds a threshold voltage. The load dump handling section is supplied with operating power through a second power supply line provided separately from the first power supply line.

Abstract translation: 一种车载旋转电动机，其特征在于，包括绕在转子上的磁场绕组，用于磁化转子的磁场，根据由磁场产生的旋转磁场产生交流电压的定子绕组，转换器 AC电压到DC电压，并通过连接到其输出端的第一电源线输出DC电压;以及负载突降处理部，用于当电力转换器的输出端的电压超过时进行负载突降保护动作 阈值电压。 通过与第一电源线分开设置的第二电源线，对负载突降处理部分提供工作电力。

公开(公告)号：US20180219503A1

公开(公告)日：2018-08-02

申请号：US15746531

申请日：2016-07-21

Applicant: DENSO CORPORATION

Inventor： Jun ISHIDA ,  Hideaki NAKAYAMA

IPC: H02P21/05 ,  H02P6/08 ,  H02P27/04

CPC classification number: H02P21/05 ,  H02P6/08 ,  H02P6/32 ,  H02P27/04

Abstract: A control apparatus for a rotary electric machine includes at least one of a first corrector and a second corrector. The first corrector corrects a first command voltage as a function of a deviation between a command value for a field current and an actual value of the field current. The second corrector corrects a second command voltage as a function of a deviation between a command value for a d-axis component of an armature current and an actual value of the d-axis component of the armature current. At least one of the first corrector and the second corrector makes the d-axis component of the armature current and the field current non-interfere with each other.

公开(公告)号：US20160265942A1

公开(公告)日：2016-09-15

申请号：US15061297

申请日：2016-03-04

Applicant: DENSO CORPORATION

Inventor： Takuya KAWAMURA ,  Hirofumi KINJOU ,  Toru WAKIMOTO ,  Hideaki NAKAYAMA ,  Masataka YOSHIMURA

IPC: G01D5/20

CPC classification number: G01D5/145 ,  G01D3/0365 ,  G01D5/24485

Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.

Abstract translation: 校正电路存储用于获得表示干扰磁通和旋转角误差之间的关系的关系式的系数的数据。 然后，从用于获得系数的数据中获得系数，并且基于获得的系数，关系表达式和干扰磁通检测电路的检测结果来校正磁传感器的检测结果。 由于可以从获得的系数和关系式获得相对于干扰磁通量的旋转角误差，因此不需要存储表示干扰磁通和旋转角度误差之间的关系的数据 干扰磁通区域中的扰动磁通值可能被应用。