公开(公告)号：US20240025473A1

公开(公告)日：2024-01-25

申请号：US18222122

申请日：2023-07-14

Applicant: JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Takashi KOUDAI ,  Yuji FUJITA ,  Yugo NAGASHIMA ,  Kazuma HASEGAWA ,  Yuuta KAJISAWA ,  Masaharu YAMASHITA ,  Atsushi SATOU ,  Yosuke YAMASHITA ,  Kazuaki IIDA ,  Shintaro TAKAYAMA ,  Takeshi IWANA ,  Toyohiro HAYASHI ,  Hayaki TANABE ,  Nobuyori NAKAJIMA ,  Hiroki TOMIZAWA

IPC: B62D5/04

CPC classification number: B62D5/0481

Abstract: A steering control system that controls a steering device of a vehicle includes a storage unit, and a control unit configured to make a state transition to a normal control state via a start-up state after a power source system of the vehicle is started. In the start-up state, the control unit executes a correction information storing process of acquiring correction element information using a state variable obtained from the steering device and writing correction information obtained based on the correction element information into the storage unit. In the start-up state, the control unit is configured to execute an abnormal condition determination process of determining whether an abnormal condition indicating that the correction information is abnormal is met. The correction information storing process is re-executed when the abnormal condition is met. The abnormal condition determination process is executed at least either before or after the correction information storing process.

公开(公告)号：US20230415758A1

公开(公告)日：2023-12-28

申请号：US18340330

申请日：2023-06-23

Applicant: JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Yuuta KAJISAWA ,  Yuji FUJITA ,  Kazuma HASEGAWA ,  Yugo NAGASHIMA ,  Takashi KOUDAI ,  Daiki INABA ,  Masaharu YAMASHITA ,  Atsushi SATOU ,  Yosuke YAMASHITA ,  Kazuaki IIDA ,  Hiroyuki KATAYAMA ,  Shintaro TAKAYAMA ,  Toyohiro HAYASHI ,  Takeshi IWANA ,  Hayaki TANABE ,  Nobuyori NAKAJIMA ,  Hiroki TOMIZAWA

IPC: B60W50/023 ,  B60W50/02 ,  B60W50/14

CPC classification number: B60W50/023 ,  B60W50/0205 ,  B60W50/14

Abstract: An electric power source apparatus includes a drive control apparatus and an auxiliary control apparatus. The drive control apparatus and the auxiliary control apparatus are configured to communicate with each other. When one of the drive control apparatus and the auxiliary control apparatus is a first control apparatus and the other of the drive control apparatus and the auxiliary control apparatus is a second control apparatus, the first control apparatus is configured to continue a function to communicate with the second control apparatus even when the first control apparatus is not able to normally communicate with the second control apparatus, and configured to execute communication with the second control apparatus when the first control apparatus is put into a state where the first control apparatus is able to normally communicate with the second control apparatus.

公开(公告)号：US20230125769A1

公开(公告)日：2023-04-27

申请号：US17972017

申请日：2022-10-24

Applicant: JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Kazuma HASEGAWA ,  Yuji FUJITA ,  Takashi KODERA ,  Isao NAMIKAWA ,  Atsushi ISHIHARA ,  Masaharu YAMASHITA ,  Kenji SHIBATA ,  Yuko GOTO ,  Hiroki TOMIZAWA ,  Nobuyori NAKAJIMA

IPC: B60W30/182 ,  B60W50/08 ,  B60W50/029 ,  B60W50/02 ,  B60W10/20

Abstract: A control device includes control circuits of a plurality of systems. When a transition condition is established, the control circuits of the systems make transition of a driving mode from a first driving mode to a second driving mode, and when a return condition is established in a state in which the driving mode has transitioned to the second driving mode, the control circuits of the systems make transition of the driving mode from the second driving mode to the first driving mode while gradually changing the current command values of the control circuits’ own systems toward the current command values before the adjustment.

公开(公告)号：US20230119506A1

公开(公告)日：2023-04-20

申请号：US17966043

申请日：2022-10-14

Applicant: JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Kazuma HASEGAWA ,  Yuji FUJITA ,  Yugo NAGASHIMA ,  Masaharu YAMASHITA ,  Shintaro TAKAYAMA ,  Yosuke YAMASHITA ,  Hiroki TOMIZAWA ,  Nobuyori NAKAJIMA

IPC: B62D5/00 ,  B62D5/04

Abstract: A control device for a vehicle includes a plurality of control circuits configured to control a control object in cooperation or in combination by starting with powering-on of a vehicle as a trigger. Each of the plurality of control circuits is configured to perform a synchronization process and power latch control. Each of the plurality of control circuits is configured to maintain the operation mode immediately before the vehicle has been powered off in a period in which the power latch control is being performed. Each of the plurality of control circuits is configured not to perform the synchronization process in a predetermined period when the vehicle has been powered on.

公开(公告)号：US20230001983A1

公开(公告)日：2023-01-05

申请号：US17854834

申请日：2022-06-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  JTEKT Corporation ,  DENSO CORPORATION

Inventor： Masaharu YAMASHITA ,  Masataka OKUDA ,  Yosuke YAMASHITA ,  Yuji FUJITA ,  Yuuta KAJISAWA ,  Kenichi ABE ,  Nobuyori NAKAJIMA ,  Hiroki TOMIZAWA ,  Takeshi IWANA

IPC: B62D5/04 ,  B62D6/00

Abstract: A steer-by-wire steering system for a vehicle, including: an operating member operable by a driver; a dual-system steering device including two systems each of which includes an electric motor as a drive source, the steering device being configured to steer a wheel; and a controller configured to control a current to be supplied to each of the electric motors of the respective two systems so as to cause the steering device to steer the wheel in accordance with an operation of the operating member, wherein the controller is configured to prohibit the current greater than an upper limit value from being supplied to the electric motors of the respective two systems, and wherein, when the wheel is steered only by only one of the two systems, the controller raises the upper limit value of the current to be supplied to the electric motor of the one of the two systems.

公开(公告)号：US20140339966A1

公开(公告)日：2014-11-20

申请号：US14278280

申请日：2014-05-15

Applicant: DENSO CORPORATION

Inventor： Hiroki TOMIZAWA ,  Makoto TANIGUCHI

IPC: H02K5/22 ,  H02K11/00

CPC classification number: H02K5/22 ,  H02K11/33

Abstract: A motor casing of a driving device has a cylindrical wall portion, a bottom wall portion and a bearing holding portion formed in the bottom wall portion. An electric motor has a stator, a shaft and a rotor. A motor control unit controls operation of the electric motor. A first frame, to which the motor control unit is fixed, is provided between the motor control unit and the bottom wall portion of the motor casing. A first contacting portion is formed in the bottom wall portion and projected toward the first frame. The first contacting portion is in contact with the first frame at a front-side surface of the first contacting portion. A contacting surface area between the motor casing and the first frame is limitedly reduced, to thereby reduce noise caused by vibration. In addition, since a sufficient surface pressure can be obtained, strength of the driving device in its axial direction is increased.

Abstract translation: 驱动装置的电机壳体具有形成在底壁部分中的圆筒形壁部分，底壁部分和轴承保持部分。 电动机具有定子，轴和转子。 电机控制单元控制电动机的运行。 马达控制单元与电动机壳体的底壁部之间设置有固定有马达控制单元的第一框架。 第一接触部分形成在底壁部分中并朝向第一框架突出。 第一接触部分在第一接触部分的前侧表面与第一框架接触。 马达壳体与第一框架之间的接触表面区域被有限地减小，从而减少由振动引起的噪音。 此外，由于可以获得足够的表面压力，驱动装置的轴向强度增加。

公开(公告)号：US20140111051A1

公开(公告)日：2014-04-24

申请号：US14034959

申请日：2013-09-24

Applicant: DENSO CORPORATION

Inventor： Hiroki TOMIZAWA ,  Makoto TANIGUCHI

IPC: H02K1/27

CPC classification number: H02K1/278

Abstract: A rotor has a rotor shaft, a rotor boss, a first magnetic pole, a second magnetic pole, an end cover, and a radially-outer cover. The first and the second magnetic poles are placed to a radially outer periphery of the rotor boss to be alternately arranged in a circumferential direction. A space is defined between the end cover and the first magnetic pole or the second magnetic pole, which is made of a magnet. The radially-outer cover has a first end portion and a second end portion, at least one of the first end portion and the second end portion being defined as a particular end portion. The particular end portion of the radially-outer cover is inwardly crimped onto the end cover in a radial direction.

Abstract translation: 转子具有转子轴，转子凸台，第一磁极，第二磁极，端盖和径向外盖。 第一和第二磁极被放置在转子凸台的径向外周上，以沿圆周方向交替布置。 在端盖和由磁体制成的第一磁极或第二磁极之间限定一个空间。 径向外盖具有第一端部和第二端部，第一端部和第二端部中的至少一个被限定为特定的端部。 径向外盖的特定端部沿径向向内卷曲到端盖上。

公开(公告)号：US20140062236A1

公开(公告)日：2014-03-06

申请号：US14016313

申请日：2013-09-03

Applicant: DENSO CORPORATION

Inventor： Makoto TANIGUCHI ,  Hiroki TOMIZAWA

IPC: H02K3/28

CPC classification number: H02K3/28 ,  H02K3/505 ,  H02K11/33

Abstract: A rotating electric machine drive system has a rotating electric machine and a controller positioned on an axial end of a rotating shaft of the rotating electric machine. The controller has a main current circuit board for flowing a main electric current. The system includes a conductor extending in a direction parallel to the rotating shaft of the rotating electric machine, serving as a stator winding wire, and connecting to the main current circuit board of the controller. In such a structure, a cross-sectional area of a terminal connection portion on an extension part of the conductor extending in a direction parallel to the rotating shaft is less than a cross-sectional area of a portion of the conductor within a plurality of conductor housings arranged on circumference of a stator of the rotating electric machine.

Abstract translation: 旋转电机驱动系统具有旋转电机和位于旋转电机的旋转轴的轴向端的控制器。 该控制器具有用于流过主电流的主电流电路板。 该系统包括在与旋转电机的旋转轴平行的方向上延伸的导体，用作定子绕组线，并连接到控制器的主电流电路板。 在这种结构中，导体延伸部分上的端子连接部分的横截面积在平行于旋转轴的方向上延伸的面积小于多个导体内的导体的一部分的横截面积 壳体布置在旋转电机的定子的圆周上。