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公开(公告)号：US11845500B2
公开(公告)日：2023-12-19
申请号：US17458016
申请日：2021-08-26
申请人： JTEKT CORPORATION
发明人： Naoki Shoji , Tomohiro Nakade , Robert Fuchs
CPC分类号： B62D5/0463 , B62D1/02 , B62D5/0403 , B62D5/0409
摘要： A steering system includes a control unit. The control unit includes a manual steering angle command value setting unit, a first weighting unit, a reaction combined angle command value calculating unit, a turning combined angle command value calculating unit, a reaction force control unit configured to cause a rotation angle of a reaction motor to conform to a reaction combined angle command value, and a turning angle control unit configured to cause a rotation angle of a turning motor to conform to a turning combined angle command value.
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公开(公告)号：US11840296B2
公开(公告)日：2023-12-12
申请号：US17481989
申请日：2021-09-22
发明人： Isao Namikawa , Satoshi Matsuda , Tomoyuki Iida , Yoshio Kudo , Masaharu Yamashita , Kenji Shibata
CPC分类号： B62D6/008 , B62D5/0463 , B62D6/002 , B62D6/08
摘要： A steering control device includes a control unit configured to control at least an operation of a steering-side motor. The control unit is configured to calculate a target reaction torque; calculate a difference axial force that is used to limit steering for turning the turning wheels in a predetermined direction, the difference axial force being reflected in the target reaction torque; and set a reference angle to one of a steering angle and a turning angle, set a converted angle to an angle obtained by converting another of the steering angle and the turning angle according to a steering angle ratio, and calculate the difference axial force based on a difference between the reference angle and the converted angle.
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公开(公告)号：US11840295B2
公开(公告)日：2023-12-12
申请号：US17346476
申请日：2021-06-14
CPC分类号： B62D6/008 , B62D5/006 , B62D5/0466
摘要： A steering system includes a steering shaft; a motor configured to generate a torque applied to the steering shaft; and a control unit configured to control the motor. The control unit has a function of performing steering angle feedback control for causing a steering angle that is a rotation angle of a steering wheel to reach a target steering angle that is set based on a point of view of adjusting a rotational position of the steering wheel, as an adjustment process of adjusting the rotational position of the steering wheel. The control unit is configured to set a limit value for limiting a change range of the target steering angle with respect to the steering angle at each moment in a period in which automatic rotation of the steering wheel is hindered in a case where the automatic rotation is hindered while the adjustment process is being performed.
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公开(公告)号：US20230375508A1
公开(公告)日：2023-11-23
申请号：US18133335
申请日：2023-04-11
申请人： JTEKT CORPORATION
发明人： Yousuke NAGANO , Akihiro KARIYA
CPC分类号： G01N29/223 , G01N29/04 , G01N2291/102 , G01N2291/023
摘要： An ultrasonic inspection apparatus includes a transmitting and a receiving probe. The transmitting probe includes a first contact part having a first convex cylindrical surface in line contact with the curved surface, and a transmitting element configured to transmit an ultrasonic wave to the first surface. The receiving probe includes a second contact part having a second convex cylindrical surface, and a receiving element configured to receive an ultrasonic wave incident from the second surface. The transmitting element is provided along a first attachment surface perpendicular to a first transmitting virtual line that passes a first contact position and is slanted away from the receiving probe with respect to the line. The receiving element is provided along a second attachment surface perpendicular to a second receiving virtual line that passes a second contact position and is slanted away from the transmitting probe with respect to the second line.
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公开(公告)号：US11807313B2
公开(公告)日：2023-11-07
申请号：US16767852
申请日：2018-11-28
申请人： JTEKT CORPORATION
CPC分类号： B62D5/0463 , B62D5/0421 , B62D6/002 , B62D6/005 , B62D3/12 , B62D5/0454
摘要： A vehicle steering device includes a first setting portion 41 that sets a target assist torque in accordance with a steering torque, a second setting portion 42 that sets an angle controlling target torque for bringing an angular deviation between a target steering angle and an actual steering angle close to zero, an estimator that estimates a compensation object 43 load with respect to the angle controlling target torque, a first calculating portion 44 that calculates a target automatic steering torque based on the angle controlling target torque set by the second setting portion and the compensation object load estimated by the estimator, and a second calculating portion 44 that performs weighted addition of the target automatic steering torque and the target assist torque in accordance with a value that changes in accordance with a driver input to calculate a target motor torque that is a target value of a motor torque of the electric motor.
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公开(公告)号：US11786985B2
公开(公告)日：2023-10-17
申请号：US16744432
申请日：2020-01-16
申请人： JTEKT CORPORATION
发明人： Takuya Nakayama , Minoru Sato
CPC分类号： B23F5/20 , B23F5/163 , B23F17/006 , B23Q3/15713 , Y10T29/5114 , Y10T29/5176 , Y10T409/105406 , Y10T409/105565 , Y10T409/106201 , Y10T409/108586 , Y10T409/108904 , Y10T483/1705 , Y10T483/1707 , Y10T483/1736
摘要： A gear machining apparatus includes a rough working tool having a plurality of replaceable tool blades attached to a tool main body, such that the tool blades are arranged in a circumferential direction of the tool main body and blade tips of the tool blades are oriented outward in a radial direction of the tool main body, a finish working tool having a plurality of tool blades provided to a tool main body in a similar manner to the rough working tool, and machining controllers control to perform rough and finish machinings on the workpiece, such that the working tools are rotated on center lines in axial directions of the working tools, the workpiece is rotated on a center line in axial direction of the workpiece, and the working tools are relatively moved to the workpiece along the center line in the axial direction of the workpiece.
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公开(公告)号：US11781633B2
公开(公告)日：2023-10-10
申请号：US16833907
申请日：2020-03-30
申请人： JTEKT CORPORATION
发明人： Yoshiaki Izumi , Hirofumi Ishimi , Isao Torii
CPC分类号： F16H55/06 , H05B6/02 , B62D3/126 , F16H2055/325
摘要： A rack bar includes: a rack tooth row including a plurality of rack teeth meshing with pinion teeth; a hardened layer provided continuously over an entire circumference of the rack tooth row; and a center portion provided inside the hardened layer and having lower hardness than the hardened layer. When the rack bar is viewed in an axial direction of the rack bar, a depth of the hardened layer from the following positions i), ii), and iii) increases in this order: i) a bottom land of the rack teeth; ii) a side of the rack bar relative to the bottom land; and iii) a back of the rack bar relative to the bottom land.
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28.发明公开公开(公告)号：US20230319499A1
公开(公告)日：2023-10-05
申请号：US18190220
申请日：2023-03-27
发明人： Hiroki UMEZAWA , Yoshiyuki SHIBATA , Akira SATO
IPC分类号： H04S7/00
CPC分类号： H04S7/303 , H04S2400/13
摘要： An information providing system includes: a processor; and a memory storing instructions that, when executed by the processor, cause the information providing system to perform operations including: acquiring position information indicating a user position; acquiring at least one of pieces of data information, each including sound information representing a sound, range information associated with the sound information and representing a predetermined range on a map, and reproduction information associated with the sound information and indicating settings related to reproduction of the sound in the sound information; and reproducing a sound by referring to the at least one of pieces of data information based on the position information. In a case in which there are one or more pieces of range information representing ranges including the user position, the reproduction processing is executed for each of the one or more pieces of range information.
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29.发明公开公开(公告)号：US20230304804A1
公开(公告)日：2023-09-28
申请号：US18160092
申请日：2023-01-26
申请人： ADVICS CO., LTD. , J-QuAD DYNAMICS INC. , DENSO CORPORATION , AISIN CORPORATION , JTEKT CORPORATION
发明人： Yosuke OHMORI
IPC分类号： G01C21/34 , B60W60/00 , B60W40/072
CPC分类号： G01C21/3415 , B60W40/072 , B60W60/0016 , G01C21/3461 , B60W2552/30
摘要： A controller computes availability of the vehicle that indicates a range reachable by the vehicle by actuation of the actuator and generates a first travel route within a range of the availability of the vehicle, as a travel route followed by the vehicle, when the vehicle travels along a road ahead of the vehicle from a present position. When the road includes a curve and the first travel route cannot be generated within the availability range, the controller sets a target position to a position in the road located before the curve and generates a second travel route within the availability range, as the travel route followed by the vehicle, to stop the vehicle at the target position.
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30.发明公开公开(公告)号：US20230278624A1
公开(公告)日：2023-09-07
申请号：US18159854
申请日：2023-01-26
申请人： ADVICS CO., LTD. , J-QuAD DYNAMICS INC. , DENSO CORPORATION , AISIN CORPORATION , JTEKT CORPORATION
发明人： Yosuke OHMORI
摘要： A motion control device includes a request value acquisition unit that obtains a motion amount request value, a limit value setting unit that sets first to third motion amount limit values, a first command unit that sends a first motion amount command value based on the motion amount request value and a first motion amount limit value to a front wheel steering controller, a second command unit that sends a second motion amount command value based on a first remaining request value and a second motion amount limit value to a rear wheel steering controller, and a third command unit that sends a command corresponding to a third motion amount command value based on a second remaining request value and a third motion amount limit value to a driving controller and a braking controller.
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