公开(公告)号：US12128964B2

公开(公告)日：2024-10-29

申请号：US17966043

申请日：2022-10-14

申请人： JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

发明人： Kazuma Hasegawa ,  Yuji Fujita ,  Yugo Nagashima ,  Masaharu Yamashita ,  Shintaro Takayama ,  Yosuke Yamashita ,  Hiroki Tomizawa ,  Nobuyori Nakajima

IPC分类号： B62D5/00 ,  B62D5/04

CPC分类号： B62D5/006 ,  B62D5/0424 ,  B62D5/0463 ,  B62D5/0481

摘要： 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：US12116052B2

公开(公告)日：2024-10-15

申请号：US17662118

申请日：2022-05-05

申请人： DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA ,  JTEKT CORPORATION

发明人： Akira Takesaki ,  Hisashi Kameya ,  Hiroki Tomizawa ,  Masaharu Yamashita ,  Kenji Shibata ,  Yosuke Yamashita ,  Shintaro Takayama ,  Toshihiro Takahashi ,  Yuji Fujita ,  Kenichi Abe ,  Yugo Nagashima

IPC分类号： B62D5/04 ,  B62D6/00

CPC分类号： B62D5/0487 ,  B62D5/046 ,  B62D6/00

摘要： Control calculation units of a back system in each actuator operate by a collaborative drive mode in which a torque is output to a motor drive unit by using an information transmitted and received mutually by a communication between the systems in common. Cooperative control calculation units in a reaction force actuator and a turning actuator can operate in cooperation with each other based on the information transmitted and received mutually by a communication between actuators. A communication between adjacent systems and a communication between adjacent actuators are restored, when a focus control calculation unit is restored, after the focus control calculation unit is stopped during operation and at least one of the communication between adjacent systems or the communication between adjacent actuators is interrupted.

公开(公告)号：US12090653B2

公开(公告)日：2024-09-17

申请号：US17015260

申请日：2020-09-09

申请人： JTEKT CORPORATION

发明人： Yoshitaka Yoshimi ,  Kazuyoshi Ohtsubo ,  Tomoki Arai ,  Hiromichi Ohta

IPC分类号： B25J9/00 ,  A61H1/02 ,  A61H3/00 ,  B25J9/10 ,  B25J9/12

CPC分类号： B25J9/0006 ,  A61H1/0262 ,  A61H3/00 ,  B25J9/102 ,  B25J9/104 ,  B25J9/12 ,  A61H2003/007 ,  A61H2201/1215 ,  A61H2201/149 ,  A61H2201/1652

摘要： An assist device includes a first harness, a second harness, a belt body, an actuator and a controller. The controller is configured to perform operation control of the actuator. The controller is configured to, upon operation of the actuator being started in a state in which the first harness and the second harness is fitted to the user, perform winding of the belt body with a first winding force, and is configured to, upon the winding of the belt body being completed, change the winding force of the actuator to a second winding force that is smaller than the first winding force.

公开(公告)号：US20240278650A1

公开(公告)日：2024-08-22

申请号：US18571161

申请日：2022-06-28

申请人： JTEKT CORPORATION

发明人： Naoki SHOJI ,  Mitsuko YOSHIDA ,  Robert FUCHS

IPC分类号： B60L15/20

CPC分类号： B60L15/20 ,  B60L2240/24 ,  B60L2240/423

摘要： A motor control unit includes: an assist torque command value generation unit that generates an assist torque command value using steering torque; a manual steering command value generation unit that generates a manual steering command value using the steering torque and the assist torque command value; an integrated angle command value calculation unit that calculates an integrated angle command value by adding the manual steering command value to an automatic steering command value; and a switching unit that switches between a first control for controlling an electric motor based on the assist torque command value and a second control for controlling the electric motor based on the integrated angle command value, based on a switching signal.

公开(公告)号：US12054192B2

公开(公告)日：2024-08-06

申请号：US17526117

申请日：2021-11-15

申请人： JTEKT CORPORATION

发明人： Koji Anraku ,  Isao Namikawa ,  Takuji Yoshida

IPC分类号： B62D5/04 ,  B60W40/10 ,  B62D6/10 ,  B62D15/02

CPC分类号： B62D15/021 ,  B60W40/10 ,  B62D5/0481 ,  B60W2554/4041

摘要： An abnormality detection device includes a processing circuit configured to perform an abnormality detecting process. The abnormality detecting process includes a first state quantity acquiring process, a second state quantity acquiring process, a difference calculating process of calculating a difference between a first state quantity and a second state quantity, and a determination process of comparing an absolute value of the difference with a difference threshold value. The abnormality detecting process is a process of detecting an abnormality of a turning unit when the absolute value of the difference is greater than the difference threshold value, and the processing circuit is configured not to perform the determination process when an absolute value of an actual current value is greater than a current threshold value.

公开(公告)号：US12049262B2

公开(公告)日：2024-07-30

申请号：US17852665

申请日：2022-06-29

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  JTEKT Corporation

发明人： Atsushi Satou ,  Yosuke Yamashita ,  Masaharu Yamashita ,  Toshihiro Takahashi ,  Tokuaki Hibino ,  Yuji Fujita ,  Yugo Nagashima ,  Kazuma Hasegawa ,  Yuuta Kajisawa ,  Kenichi Abe

IPC分类号： B62D5/00 ,  B60R16/033 ,  B62D5/04

CPC分类号： B62D5/003 ,  B60R16/033 ,  B62D5/0484

摘要： A steer-by-wire steering system, including a steering device including a dual-system steering motor including a main system and a sub system, wherein a power supply to the main system is conducted selectively by a main power source and a backup power source, and a power supply to the sub system is conducted by only the main power source, wherein, in a normal power-supply situation in which the power supply to the main system and to the sub system is conducted by the main power source, a controller controls the sub system to operate in accordance with the main system, and wherein, in a backup power-supply situation in which the power supply to the main system is conducted by the backup power source, the controller controls the main system not to operate or to operate while limiting the power supply to the main system and controls the sub system independently.

公开(公告)号：US12037059B2

公开(公告)日：2024-07-16

申请号：US17691310

申请日：2022-03-10

申请人： JTEKT CORPORATION ,  DENSO CORPORATION

发明人： Satoshi Sugiyama ,  Koichi Nakamura

IPC分类号： B62D5/04 ,  B62D15/02

CPC分类号： B62D5/0463 ,  B62D5/0412 ,  B62D15/025

摘要： In a steering control device, a plurality of control systems is configured to switch a drive mode to a cooperative drive mode when command values calculated by control units of the control systems are not different from each other and to switch the drive mode to an independent drive mode when the command values calculated by the control units of the control systems are different from each other. The control systems are configured to gradually limit the command values respectively calculated by the control units of the control systems when a start switch of a vehicle has been turned off. The control systems are configured to switch the drive mode to the independent drive mode regardless of whether the command values calculated by the control units of the control systems are different from each other when the start switch has been turned off while the vehicle is traveling.

公开(公告)号：US20240217093A1

公开(公告)日：2024-07-04

申请号：US18562912

申请日：2021-12-27

申请人： JTEKT CORPORATION

发明人： Yoshinobu KATO ,  Genki MURATA ,  Ai HIGUCHI ,  Atsushi ANDO

IPC分类号： B25J9/00 ,  A61H3/00 ,  B25J9/16 ,  B25J13/08

CPC分类号： B25J9/0006 ,  A61H3/00 ,  B25J9/163 ,  B25J9/1638 ,  B25J13/088

摘要： An assist device includes: a first wearing tool mounted to at least a waist portion of a user, an assist arm disposed along a thigh portion of the user and being turnable with respect to the first wearing tool; a motor that generates torque for turning the assist arm; a second wearing tool provided on the assist arm and mounted to the thigh portion; an acceleration sensor provided on the first wearing tool; a rotation detector that detects a turning state of the assist arm; and a control device that controls the motor. The control device includes a processing portion that executes an estimation process of obtaining an estimated weight of a load to be lifted by the user based on an output of the acceleration sensor and an output of the rotation detector, and a control process of controlling the motor based on the estimated weight.

公开(公告)号：USD1027741S1

公开(公告)日：2024-05-21

申请号：US29792857

申请日：2022-04-27

申请人： JTEKT CORPORATION

设计人： Hiroshi Kitamoto ,  Akihiro Takeuchi ,  Riku Nagayama ,  Chishin Yohena ,  Toshiki Kumeno ,  Nobuaki Ikehara ,  Nobuyuki Togashi ,  Goro Tsuji ,  Toshihiro Ishikawa

摘要： FIG. 1 is a rear, top, and right side perspective view of a wheelchair showing the new design.
FIG. 2 is a rear elevational view thereof.
FIG. 3 is a front elevational view thereof.
FIG. 4 is a top plan view thereof.
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a left side elevational view thereof.
FIG. 7 is a right side elevational view thereof.
FIG. 8 is an enlarged view of the section indicated by lines 8-8 in FIG. 1.
FIG. 9 is an enlarged view of the section indicated by lines 9-9 in FIG. 2; and,
FIG. 10 is an enlarged view of the section indicated by lines 10-10 in FIG. 4.
The broken lines depict portions of the wheelchair that form no part of the claimed design.

公开(公告)号：US20240158005A1

公开(公告)日：2024-05-16

申请号：US18508520

申请日：2023-11-14

申请人： JTEKT CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kotaro OKADA ,  KAZUKI ITAZURI

IPC分类号： B62D6/00 ,  B62D1/28 ,  B62D5/00

CPC分类号： B62D6/002 ,  B62D1/283 ,  B62D5/006 ,  B62D6/008

摘要： A steering control apparatus includes a processing unit configured to execute, a target steering angle variable acquiring processing of acquiring a value of a target steering angle variable, a target steering angle correcting processing of correcting the value of the target steering angle variable by a play compensation amount according to a steering direction, a gradually changing processing of gradually changing a magnitude of the play compensation amount, and a steering angle control of operating the motor through control with a steering angle according to a rotation angle of the steering shaft being as a control amount and with the value of the target steering angle variable being as a target value of the control amount.