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公开(公告)号：US20140145564A1
公开(公告)日：2014-05-29
申请号：US14027625
申请日：2013-09-16
Applicant: DENSO CORPORATION
Inventor： Makoto TANIGUCHI , Jirou HAYASHI , Tatsuya INAGAKI , Akihito NAITOU , Hiroki TOMIZAWA , Masaaki YAMADA , Masashi YAMASAKI , Yasufumi MATSUO , Shuhei MIYACHI , Nobuhiko URYU
IPC: H02K11/00
CPC classification number: H02K11/215 , H02K3/12 , H02K5/1732
Abstract: A housing and a rotary shaft of a motor are formed of non-magnetic material. A soft magnetic member is provided between a first axial end surface of a fixed core and a bearing. The soft magnetic member is provided on the fixed core side relative to the first bearing thereby to suppress magnetic flux leaking to a vicinity of one end part of the rotary shaft by leading the magnetic flux, which is generated from a rotor, to the rotor core through the fixed core and a casing. A magnetic angular position sensor fixed to one end part of the rotary shaft can detect a magnetic angular position of the rotor accurately without being affected by external magnetic field. As a result, noise generated by vibration of the motor can be suppressed.
Abstract translation: 电动机的壳体和旋转轴由非磁性材料形成。 在固定铁心的第一轴向端面和轴承之间设置软磁性构件。 软磁性构件相对于第一轴承设置在固定芯侧，从而通过将从转子产生的磁通引导到转子铁心来抑制向旋转轴的一个端部附近泄漏的磁通量 通过固定芯和套管。 固定在旋转轴的一端的磁性角位置传感器可以精确地检测转子的磁角位置而不受外部磁场的影响。 结果，可以抑制由电动机的振动产生的噪声。
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公开(公告)号：US20240227923A9
公开(公告)日：2024-07-11
申请号：US18485710
申请日：2023-10-12
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yuuta KAJISAWA , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Takashi KOUDAI , Kaishi MONOBE , Kenichi ABE , Masaharu YAMASHITA , Shintaro TAKAYAMA , Kazuaki IIDA , Yasushi HORA , Yosuke YAMASHITA , Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Hayaki TANABE , Toyohiro HAYASHI , Takeshi IWANA
CPC classification number: B62D5/0484 , B62D5/046 , H02P23/00
Abstract: A vehicle power supply system includes a power source control device that executes a process of switching a connection state of a driving circuit to the main power source and an auxiliary power source including; a process of switching the connection state so as to transition to a backup state as a voltage decrease of the main power source occurs, and a process of switching the connection state so as to transition to a normal state as the voltage decrease of the main power source is resolved. After a voltage decrease of the main power source occurs, a turning-side control device of a steering control unit sets an output-limited state for a turning-side motor. The output-limited state is canceled upon the power source control device completing switching of the connection state so as to transition.
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公开(公告)号：US20240088814A1
公开(公告)日：2024-03-14
申请号：US18511618
申请日：2023-11-16
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , JTEKT CORPORATION
Inventor： Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Tomoaki YOSHIMI , Toyohiro HAYASHI , Yosuke YAMASHITA , Shintaro TAKAYAMA , Yuuta KAJISAWA , Yuji FUJITA
CPC classification number: H02P27/06 , B62D5/0484 , H02J9/062 , B62D5/006
Abstract: When a DC power source fails, the following controls are performed. The normal control is resumed when an inverter input voltage recovers before a standby period elapses after a power failure time. A power source relay is turned off when the standby period elapses without recovery of the voltage. The power source relay is turned on again when a power source relay off period has elapsed from a turn-off time. The normal control is resumed when the inverter input voltage recovers at the turn-on time. The normal control is resumed when the inverter input voltage recovers before the power source relay on period elapses from the turn-on time. The power source relay is turned off, and driving of the actuator is stopped, when the power source relay on period passes without recovery of the voltage.
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公开(公告)号：US20240001949A1
公开(公告)日：2024-01-04
申请号：US18215491
申请日：2023-06-28
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yugo NAGASHIMA , Yuji FUJITA , Yuuta KAJISAWA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Hayaki TANABE , Takeshi IWANA
CPC classification number: B60W50/12 , B62D15/029 , B62D15/021 , B60W2520/28
Abstract: A vehicle control device includes a driving control device configured to be supplied with electricity through a first power line and configured to execute a first process, and a steering control device configured to be supplied with electricity through a second power line and configured to execute a second process. The steering control device is configured such that, in a case where it is determined that power supply through the second power line has stopped during travel, when it is determined that the driving control device is not in a state of being able to execute the first process, the steering control device permits execution of the second process to stop, whereas when it is determined that the driving control device is in a state of being able to execute the first process, the steering control device does not permit execution of the second process to stop.
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公开(公告)号：US20230415586A1
公开(公告)日：2023-12-28
申请号：US18339700
申请日：2023-06-22
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yuuta KAJISAWA , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Takeshi IWANA , Hayaki TANABE , Nobuyori NAKAJIMA , Hiroki TOMIZAWA
Abstract: A power supply device includes a driving control device and an auxiliary control device, the vehicle including a main power source, an auxiliary power source, and a supply path, the supply path being a path configured to be opened and closed according to a state of a start switch of the vehicle. The driving control device is a device that controls a state of equipment installed in the vehicle and the auxiliary control device is a device that controls a state of the auxiliary power source. The driving control device is configured to execute a storage process, a permission signal transmission process, and an initial value process, and the auxiliary control device is configured to execute a permission signal reception process and a stop process.
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Patent Agency Ranking
公开(公告)号：US20230365187A1
公开(公告)日：2023-11-16
申请号：US18142407
申请日：2023-05-02
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Kazuma HASEGAWA , Yuji FUJITA , Yuuta KAJISAWA , Yugo NAGASHIMA , Takashi KOUDAI , Masaharu YAMASHITA , Atsushi SATOU , Yosuke YAMASHITA , Kazuaki IIDA , Hiroyuki KATAYAMA , Shintaro TAKAYAMA , Toyohiro HAYASHI , Hiroki TOMIZAWA , Nobuyori NAKAJIMA
IPC: B62D5/04
CPC classification number: B62D5/0484 , B62D5/0463 , B62D5/049
Abstract: A vehicle control device includes: dual-system control circuits that control power supply to dual-system winding sets of a motor; and dual-system rotation detection circuits. The control circuits calculate an absolute rotation angle of the motor, and, when a power source is turned off, store an absolute rotation angle of the motor at that time. The control circuits start when the power source is turned on and the absolute value of a difference between an absolute rotation angle that was stored when the power source was turned off last time and an absolute rotation angle that is calculated when the power source is turned on this time is equal to or smaller than a given threshold value, regardless of whether an abnormality has occurred in one of the dual-system rotation detection circuits or an abnormality of the dual-system rotation detection circuits is not determinable.
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公开(公告)号：US20230130839A1
公开(公告)日：2023-04-27
申请号：US17973737
申请日：2022-10-26
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yugo NAGASHIMA , Yuji FUJITA , Yuuta KAJISAWA , Kazuma HASEGAWA , Takashi KOUDAI , Masaharu YAMASHITA , Yosuke YAMASHITA , Shintaro TAKAYAMA , Hiroki TOMIZAWA
IPC: B62D5/04
Abstract: A steering control device includes a control circuit configured to control driving of a reaction force motor that generates steering reaction force applied to a steering wheel in which power transmission with turning wheels of a vehicle is separated. When a vehicle power source is turned on, the control circuit requests a vehicle control device to stop traveling of the vehicle when information is exchanged with the vehicle control device in a manner that does not follow a predetermined pattern.
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公开(公告)号：US20140159534A1
公开(公告)日：2014-06-12
申请号：US14101391
申请日：2013-12-10
Applicant: Denso Corporation
Inventor： Makoto TANIGUCHI , Hiroki TOMIZAWA
CPC classification number: H02K1/2746 , H02K29/03 , H02K2213/03
Abstract: A rotating electric machine is equipped with a consequent-pole type rotor that includes a magnetic pole having a permanent magnet buried therein and a soft magnetic material pole that interposes two magnetic poles. The thickness of the permanent magnet and a circumferential width of the soft magnetic material pole have a relationship that prevents a spread of magnetic flux distribution in the circumferential direction within a gap between the soft magnetic material pole and a stator. As a result, a magnetic flux density difference in the circumferential direction is prevented, which enables a reduction of cogging torque based on an effective reduction of low-frequency space order components that originate from components other than a main component.
Abstract translation: 旋转电机配备有后置极型转子，其包括埋置有永磁体的磁极和插入两个磁极的软磁极。 永磁体的厚度和软磁性材料极的周向宽度具有防止软磁极与定子之间的间隙内的圆周方向的磁通分布扩大的关系。 结果，能够防止圆周方向的磁通密度差异，能够根据来自主成分以外的成分的低频空间分量的有效降低而减少齿槽转矩。
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公开(公告)号：US20130257232A1
公开(公告)日：2013-10-03
申请号：US13834234
申请日：2013-03-15
Applicant: DENSO CORPORATION
Inventor： Hiroki TOMIZAWA , Jirou Hayashi , Hiroshi Imai
IPC: H02K11/00
CPC classification number: H02K11/33 , B60L2220/50 , B60L2240/421 , B60L2240/423 , H02K29/08 , Y02T10/641 , Y02T10/642
Abstract: A motor drive apparatus includes a rear end frame between a motor case and a control unit case. A shaft of a motor unit is supported rotatably by a bearing fixed to the rear end frame. A first socket-spigot fitting surface formed on the rear end frame is fitted with a second socket-spigot fitting surface formed on a heat sink. A rotation angle sensor mounted on a control unit substrate attached to the heat sink is provided on the rotation axis of the shaft. The rotation angle sensor can thus accurately detect the magnetic field of a magnet provided at the end of the shaft.
Abstract translation: 电动机驱动装置包括在电动机壳体和控制单元壳体之间的后端框架。 马达单元的轴由固定到后端框架的轴承可旋转地支撑。 形成在后端框架上的第一插座插口配合表面装配有形成在散热器上的第二插座接头表面。 安装在安装在散热器上的控制单元基板上的旋转角传感器设置在轴的旋转轴上。 因此，旋转角度传感器可以精确地检测设置在轴的端部的磁体的磁场。
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公开(公告)号：US20240132147A1
公开(公告)日：2024-04-25
申请号：US18485710
申请日：2023-10-11
Applicant: JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Yuuta KAJISAWA , Yuji FUJITA , Yugo NAGASHIMA , Kazuma HASEGAWA , Takashi KOUDAI , Kaishi MONOBE , Kenichi ABE , Masaharu YAMASHITA , Shintaro TAKAYAMA , Kazuaki IIDA , Yasushi HORA , Yosuke YAMASHITA , Hiroki TOMIZAWA , Nobuyori NAKAJIMA , Hayaki TANABE , Toyohiro HAYASHI , Takeshi IWANA
CPC classification number: B62D5/0484 , B62D5/046 , H02P23/00
Abstract: A vehicle power supply system includes a power source control device that executes a process of switching a connection state of a driving circuit to the main power source and an auxiliary power source including; a process of switching the connection state so as to transition to a backup state as a voltage decrease of the main power source occurs, and a process of switching the connection state so as to transition to a normal state as the voltage decrease of the main power source is resolved. After a voltage decrease of the main power source occurs, a turning-side control device of a steering control unit sets an output-limited state for a turning-side motor. The output-limited state is canceled upon the power source control device completing switching of the connection state so as to transition.
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