公开(公告)号：US12054193B2

公开(公告)日：2024-08-06

申请号：US17811134

申请日：2022-07-07

申请人： HYUNDAI MOBIS CO., LTD.

发明人： Lyoung Tae Kim

IPC分类号： B62D15/02 ,  B62D5/04 ,  B62D6/00 ,  B62D3/12

CPC分类号： B62D15/025 ,  B62D5/0421 ,  B62D5/0481 ,  B62D6/002 ,  B62D6/008 ,  B62D3/12

摘要： Proposed are a steer-by-wire system control apparatus and method, the apparatus including: a torque overlay control module configured to determine a target steering angle using a torque command input from a Lane Keeping Assistance System; and an actuator control module configured to control a position of a rack according to the target steering angle and thus to control a traveling direction of a vehicle.

公开(公告)号：US20240253695A1

公开(公告)日：2024-08-01

申请号：US18526221

申请日：2023-12-01

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Satoshi HANDA ,  Shusaku SUGAMOTO ,  Satoshi INOUE

IPC分类号： B62D5/04 ,  B62D15/02

CPC分类号： B62D5/046 ,  B62D5/0421 ,  B62D15/024 ,  B62D15/025

摘要： A vehicle steering assist device includes a steering assist ECU. The steering assist ECU calculates a target steering angle for driving the vehicle along the road, and a target steering guide torque that guides the driver's steering so that the actual steering angle becomes the target steering angle. The steering assist ECU controls the torque applying device so that the steering guide torque becomes the target steering guide torque. The steering assist ECU acquires at least one of information on the driving environment of the vehicle and information on the state of the driver, and calculates an index value indicating the necessity of the steering guide torque based on at least one of the pieces of information. The steering assist ECU corrects the target steering guide torque based on the index value so that the higher the need for the steering guide torque, the larger the target steering guide torque.

公开(公告)号：US20240227920A1

公开(公告)日：2024-07-11

申请号：US18152048

申请日：2023-01-09

申请人： DANA ITALIA S.R.L.

发明人： Idris POONAWALA ,  Sudatta KARMARKAR ,  Paresh JOSHI

IPC分类号： B62D5/04 ,  B62D5/00 ,  B62D7/18

CPC分类号： B62D5/0436 ,  B62D5/005 ,  B62D5/0421 ,  B62D5/0448 ,  B62D5/046 ,  B62D7/18

摘要： Methods and systems are provided for a steer-by-wire system. In one example, a steer-by-wire system comprises an electric motor coupled to a steering axle via a bevel gear set, where a rotor of the electric motor is perpendicular to the steering axle, and the bevel gear set comprises a first bevel gear and a second bevel gear. The steer-by-wire system includes an overload protection arrangement, where the second bevel gear is normally coupled to a ball screw nut via a plurality of locking pins, the plurality of locking pins disengaging from the second bevel gear and allowing slipping of the ball screw nut in response to an external impact load acting on the ball screw nut exceeding a threshold.

公开(公告)号：US20240154479A1

公开(公告)日：2024-05-09

申请号：US16955882

申请日：2018-12-20

申请人： Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg

发明人： Saliba OK ,  Kevin KOCH

IPC分类号： H02K1/278 ,  B62D5/04 ,  H02K1/30

CPC分类号： H02K1/278 ,  B62D5/0421 ,  H02K1/30 ,  H02K7/1166 ,  H02K2201/06

摘要： A rotor of an electric motor, in particular for a power steering system, including a rotor shaft, which is directed in an axial direction, and a number of rotor cores, which are arranged coaxial to each other along the rotor shaft, and an intermediate ring arranged between two rotor cores arranged adjacent to each other in the axial direction, which intermediate ring holds the adjacent rotor cores interlockingly in a crossed orientation relative to each other.

公开(公告)号：US20240094031A1

公开(公告)日：2024-03-21

申请号：US18464812

申请日：2023-09-11

申请人： Proterial, Ltd.

发明人： Yohei SHIRAKAWA ,  Yoshiaki YANAGISAWA

IPC分类号： G01D5/20 ,  B62D5/04 ,  B62D15/02

CPC分类号： G01D5/2053 ,  B62D5/0421 ,  B62D15/0215

摘要： A position detecting device is configured to detect a position of a moving member in which a conductive portion and a non-conductive portion having greater electrical resistance than the conductive portion are provided side by side in a predetermined moving direction. The position detection device is provided with an exciting coil and a detection coil that are arranged extending in the moving direction of the moving member. A voltage is induced in the detection coil by a current flowing in the conductive portion due to a magnetic field generated by the exciting coil. A magnitude of the voltage induced in the detection coil varies with a position in the moving direction of the moving member relative to the detection coil. A vehicle steering device is provided with a shaft, a housing, and the position detecting device.

公开(公告)号：US20240083493A1

公开(公告)日：2024-03-14

申请号：US18261905

申请日：2021-12-17

申请人： HITACHI ASTEMO, LTD.

发明人： Makoto KIMURA

IPC分类号： B62D5/04 ,  B62D5/00 ,  B62D15/02

CPC分类号： B62D5/046 ,  B62D5/006 ,  B62D5/0421 ,  B62D15/0215 ,  B62D15/0225 ,  B62D6/008

摘要： In a vehicular steering control device, a steer-by-wire system, and a method for controlling a steer-by-wire system according to the present invention, if an abnormality of a rotation angle sensor of a turning motor is detected, open-loop control is performed on the turning motor based on a rotation angle of a motor shaft before the abnormality of the rotation angle sensor is detected and information concerning a reaction generation device that applies reaction torque to steering wheel. Consequently, it is possible to continue control of a turning angle even if the rotation angle sensor of the turning motor fails, while suppressing an increase in system cost.

公开(公告)号：US20240059350A1

公开(公告)日：2024-02-22

申请号：US18270041

申请日：2021-12-30

申请人： ZF Automotive UK Limited

发明人： Xiao-Dong Sun

IPC分类号： B62D6/00 ,  B62D5/04 ,  G05B6/02 ,  G05B13/02

CPC分类号： B62D6/002 ,  B62D5/046 ,  B62D5/0409 ,  B62D5/0421 ,  G05B6/02 ,  G05B13/027

摘要： A steer by wire system for a vehicle includes a hand wheel, a steering gear that is attached to at least one steered road wheel, and at least one actuator that is connected to the hand wheel or the steering gear for the vehicle to apply to torque to the hand wheel or steering gear. The steer by wire system can include a control circuit comprising a first PID Controller which receives at an input a set point signal and provides as an output a control signal that is used to control the motor, the controller being arranged in a closed loop with the motor and configured to minimise an error value indicative of the difference between the demanded behaviour of the motor as indicated by the set point signal and the actual behaviour of the motor.

公开(公告)号：US20230399045A1

公开(公告)日：2023-12-14

申请号：US18207678

申请日：2023-06-09

申请人： HL MANDO CORPORATION

发明人： Donghyeon LEE

IPC分类号： B62D5/04

CPC分类号： B62D5/0421 ,  B62D5/0448

摘要： Disclosed herein are a steering rack and a method of manufacturing the same. The steering rack includes a body part having both ends, each of which is connectable to a respective wheel and extending in a width direction of a vehicle body, and a threaded part provided on one side of the body part and having screw gear teeth configured to be engageable with a ball nut configured to be rotatable by power of a motor by means of a ball. The screw gear teeth may be divided into a first area relatively adjacent to a center of the threaded part and a second area relatively adjacent to both ends of the threaded part, and an over ball diameter of the first area is different from an over ball diameter of the second area.

公开(公告)号：US20230373559A1

公开(公告)日：2023-11-23

申请号：US18127684

申请日：2023-03-29

申请人： Beihang University

发明人： Juan CHEN ,  Jingkun WEI ,  Min YANG ,  Qingzhen ZHANG ,  Langfu CUI ,  Changlin WU ,  Shicheng ZHENG

IPC分类号： B62D7/02 ,  B62D15/02 ,  B62D5/04 ,  B60K7/00

CPC分类号： B62D7/023 ,  B62D15/0245 ,  B62D5/0421 ,  B60K7/0007

摘要： A steering wheel structure for an omnidirectional mobile robot chassis is provided. The steering wheel structure can realize two degrees of freedom: the rudder rotation of the steering wheel rotation and the full free movement realized in the horizontal plane, it has the characteristics of a small size and a lower height. The wheel assembly realizes the movement of the steering wheel when it moves forward; the rudder assembly realizes the movement of the steering wheel when the steering wheel rotates, initializes the steering direction, and calibrates the rotation through the zero position sensor; the suspension assembly realizes the damping and buffering of the longitudinal motion of the steering wheel; the wiring assembly constrains the movement of various wires when the rudder rotates; the support plate is used for the connection and support of the wheel assembly and the wiring assembly with the rudder assembly.

公开(公告)号：US20230347970A1

公开(公告)日：2023-11-02

申请号：US18112134

申请日：2023-02-21

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shintaro SAIGO ,  Shusaku SUGAMOTO ,  Satoshi INOUE

IPC分类号： B62D5/04

CPC分类号： B62D5/0466 ,  B62D5/0463 ,  B62D5/0421

摘要： A vehicle steering assist device in which the steering assist ECU calculates a target steering angle for driving a vehicle along a traveling path, and is vehicle steering assist device that a calculates a target steering guide torque for facilitating the steering angle to become a target steering angle by reducing a return torque for urging the steering wheel to a neutral position in an area where the steering angle is smaller than the target steering angle, wherein when the steering angular velocity is higher than the target steering angular velocity, the steering support ECU calculates a target steering angular velocity control torque acting in a direction opposite to a direction in which the steering angle changes, and controls the control steering torque generating device so as to generate a control steering torque including a sum of the target steering guide torque and the target steering angular velocity control torque.