公开(公告)号：US20230279906A1

公开(公告)日：2023-09-07

申请号：US18018095

申请日：2020-07-28

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Yandong JI ,  Liuqing YAN

IPC: F16D3/205 ,  B62D5/04

CPC classification number: F16D3/2055 ,  B62D5/0454 ,  B62D5/0421 ,  F16D2003/2023

Abstract: A three ball pin-type coupling, having a first connector and a second connector which are non-rotatably connected. The first connector includes a three shaft pin assembly, raceway assemblies and a cage assembly. The three shaft pin assembly includes a shaft and three ball rings which surround the shaft and are arranged at intervals in the circumferential direction of the shaft. There are three raceway assemblies. Each ball ring is connected to a raceway assembly. The cage assembly defines the position of the raceway assemblies in the circumferential direction. The raceway assemblies can provide elastic force between the ball ring and the cage assembly. When the ball ring displaces relative to the cage assembly in the circumferential direction, the two sides of the raceway assemblies in the circumferential direction remain abutted against the cage assembly. A steering mechanism is also provided.

公开(公告)号：US11724738B2

公开(公告)日：2023-08-15

申请号：US16072388

申请日：2017-04-06

Applicant: Jaguar Land Rover Limited

Inventor： Oliver Tyrrell ,  Brian Smith

IPC: B62D15/02 ,  B62D5/04 ,  B62D6/00

CPC classification number: B62D15/025 ,  B62D5/0463 ,  B62D6/003 ,  B62D5/0421

Abstract: A vehicle steering system includes an input configured to receive a signal representing a target steering angle, an output configured to provide a torque output command to a steering motor based on the target steering angle, and a torque limiter module configured to receive the torque output command and apply a torque limit thereto, prior to the torque output command being provided to the steering motor. The torque limit is configurable dynamically based on at least one vehicle parameter.

公开(公告)号：US11691667B2

公开(公告)日：2023-07-04

申请号：US16997236

申请日：2020-08-19

Applicant: JTEKT CORPORATION

Inventor： Yoshio Kondo ,  Toshiaki Ogata ,  Fumio Kishida ,  Keishi Nakamura ,  Hirohide Suzuki

IPC: B62D5/04

CPC classification number: B62D5/0484 ,  B62D5/0421 ,  B62D5/0448 ,  B62D5/0463 ,  B62D5/0487

Abstract: A steering device includes two motors each configured to generate a drive force that steers a steerable wheel of a vehicle and two controllers respectively corresponding to the two motors, each of the two controllers being configured to individually control a corresponding one of the motors. One of the two controllers is a first controller, and the other one of the two controllers is a second controller. The first controller is configured to calculate a command value corresponding to a total torque that should be generated in the two motors. The command value is divided into individual command values using a changeable distribution ratio set for each of the motors, the individual command values respectively corresponding to the motors. The two controllers are configured to respectively supply the motors with current corresponding to the individual command values.

公开(公告)号：US11661105B2

公开(公告)日：2023-05-30

申请号：US16895358

申请日：2020-06-08

Applicant: SHOWA CORPORATION

Inventor： Akihiro Kogure

IPC: B62D6/00 ,  B62D5/04 ,  B62D3/12 ,  B62D5/00

CPC classification number: B62D6/002 ,  B62D5/046 ,  B62D5/0421 ,  B62D3/12 ,  B62D5/006 ,  B62D5/0454 ,  B62D6/008

Abstract: A steering device includes: an electric motor configured to apply a driving force to cause a wheel of a vehicle to roll; a transmission unit configured to transmit the driving force of the electric motor to the wheel; an input determination unit 221 configured to determine whether an excessive external force equal to or greater than a predetermined force is input, or likely to be input, to the transmission unit via the wheel while the electric motor is applying the driving force; and a final target current setting unit 23 configured to, in response to the input determination unit 221 determining that the excessive force is input, or likely to be input, to the transmission unit, reduce the driving force of the electric motor so that a load on the transmission unit does not exceed an upper limit that is preset according to strength of the transmission unit.

公开(公告)号：US20230150572A1

公开(公告)日：2023-05-18

申请号：US18157204

申请日：2023-01-20

Applicant: TuSimple, Inc.

Inventor： Kaixin ZHENG ,  Xiaoling HAN ,  Zehua HUANG

IPC: B62D6/00 ,  B62D5/04 ,  G05D1/00

CPC classification number: B62D6/00 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/0463 ,  G05D1/0088

Abstract: Techniques are described for managing redundant steering system for a vehicle. A method includes sending a first control command that instructs a first motor coupled to a steering wheel in a steering system to steer a vehicle, receiving, after sending the first control command, a speed of the vehicle, a yaw rate of the vehicle, and a steering position of the steering wheel, determining, based at least on the speed and the yaw rate, an expected range of steering angles that describes values within which the first motor is expected to steer the vehicle based on the first control command, and upon determining that the steering position of a steering wheel is outside the expected range of steering angles, sending a second control command that instructs a second motor coupled to the steering wheel in the steering system to steer the vehicle.

公开(公告)号：US20190202497A1

公开(公告)日：2019-07-04

申请号：US16156848

申请日：2018-10-10

Applicant: SUBARU CORPORATION

Inventor： Ryo HAJIKA ,  Masahito TAKIZAWA

IPC: B62D6/00 ,  B62D15/02 ,  B62D6/10 ,  B62D5/04 ,  G05B6/02

CPC classification number: B62D6/005 ,  B62D5/0421 ,  B62D5/0463 ,  B62D6/10 ,  B62D15/025 ,  G05B6/02

Abstract: A lane deviation prevention control device for a vehicle includes a target yaw rate calculator, a target steering torque calculator, and an integration permission determiner. The integration permission determiner determines, on the basis of a state of an own vehicle with respect to a lane and on the basis of a state of an actual yaw rate with respect to a target yaw rate, whether or not to permit an integral control in a proportional integral differential control, in executing a feedback control on the target yaw rate by the proportional integral differential control.

公开(公告)号：US20180362074A1

公开(公告)日：2018-12-20

申请号：US15625066

申请日：2017-06-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： IBRAHIM A. BADIRU

IPC: B62D6/00 ,  B62D5/04

CPC classification number: B62D6/003 ,  B62D3/12 ,  B62D5/0421 ,  B62D5/046 ,  B62D6/001

Abstract: An electronic control unit for a steer-by-wire vehicle steering system includes a data storage component that stores a desired lateral acceleration versus steering angle profile with regard to a range of vehicle speeds and a processor operably and electronically coupled with a steering wheel angle sensor and a yaw sensor. The data storage component includes electronic instructions that causes the processor to receive steering wheel angle data over a range of vehicle speeds, receive vehicle yaw data over the range of vehicle speed correlated to the steering wheel angle data, generate an observed lateral acceleration versus steering angle profile with regard to the range of vehicle speeds, and generate a steering ratio correction based on a comparison of the desired lateral acceleration versus steering angle profile and the observed lateral acceleration versus steering angle profile.

公开(公告)号：US10053137B2

公开(公告)日：2018-08-21

申请号：US15303575

申请日：2015-04-07

Applicant: NTN CORPORATION

Inventor： Hironori Tokunaga ,  Takashi Koike

IPC: B62D5/00 ,  B62D5/04 ,  B62D7/09 ,  B62D7/15 ,  B62D3/02 ,  B62D9/00

CPC classification number: B62D5/008 ,  B62D3/02 ,  B62D5/0421 ,  B62D5/0427 ,  B62D7/09 ,  B62D7/1581 ,  B62D9/002

Abstract: It is an object of the present invention to provide a rear wheel steering device of which the weight is not added to unsprung weight, and which can steer right and left rear wheels independently of each other. The rear wheel steering device includes a first rod connected to the left rear wheel, a first driving portion configured to axially move the first rod, a second rod connected to the right rear wheel, and a second driving portion configured to axially move the second rod. A single housing supports the first rod, the first driving portion, the second rod, and the second driving portion.

公开(公告)号：US09969423B2

公开(公告)日：2018-05-15

申请号：US15004684

申请日：2016-01-22

Applicant: HYUNDAI MOBIS CO., LTD.

Inventor： Kyung Min Lee

IPC: B62D5/04 ,  B62D3/04 ,  F16D3/02 ,  F16D3/72

CPC classification number: B62D5/0421 ,  B62D3/04 ,  F16D3/02 ,  F16D3/72

Abstract: A motor driven power steering (MDPS) system is disclosed. The MDPS system includes a driving member configured to rotate about an axis; a worm shaft member having a worm gear and configured to rotate while engaged with a worm wheel; and a coupler member interposed between the driving member and the worm shaft member and configured to couple the driving member and the worm shaft and transmit power from the driving member to the worm shaft member. The coupler member includes a couple sleeve portion configured to receive and hold the driving member and the worm shaft member and a sleeve pressurizing portion surrounding the couple sleeve portion and configured to pressurize the couple sleeve portion toward the driving member or the worm shaft member.

公开(公告)号：US20180050722A1

公开(公告)日：2018-02-22

申请号：US15794219

申请日：2017-10-26

Applicant: Oceaneering International, Inc.

Inventor： Samuel T. Foster ,  Michael Wayne Boshears ,  Andrew Wayne Grant ,  Frank Peter Hass ,  Clifford Allen Jennings ,  Eric Arthur King ,  Kenneth Thomas Kroslowitz ,  Suhas Subhaschandra Malghan ,  Stephen A. Sywak

IPC: B62D5/04 ,  G09B9/12 ,  G09B9/04 ,  A63G21/08 ,  A63G25/00 ,  A63G31/08 ,  A63G31/16 ,  G09B9/02 ,  F16H21/54 ,  B62D7/06 ,  B62D3/02 ,  B62D3/00 ,  F16M11/12 ,  F16M11/18 ,  A63G7/00

CPC classification number: B62D5/04 ,  A63G7/00 ,  A63G21/08 ,  A63G25/00 ,  A63G31/08 ,  A63G31/16 ,  B62D3/00 ,  B62D3/02 ,  B62D5/0421 ,  B62D7/06 ,  F16H21/54 ,  F16M11/126 ,  F16M11/18 ,  F16M2200/048 ,  G09B9/02 ,  G09B9/04 ,  G09B9/12 ,  Y10T74/18888

Abstract: A motion assembly that produces pitch and roll motions includes lower and upper plates. A pivotable coupling having upper and lower shafts extending from its center is coupled between the upper and lower plates. At least two linear actuators are coupled between the plates. Extension and retraction of the actuators pivots the upper plate about the pivotable coupling relative to the lower plate. A vehicle includes two steerable propulsion wheels coupled to a chassis. A lower plate of a pitch and roll assembly, similar to that just described, couples to the chassis via a slew bearing. Seating is coupled to the upper plate. The seating rotates with respect to the chassis via controlled rotation of the slew bearing with reference to the chassis. The seating can be rotated to point in any direction with respect to the chassis regardless of the direction the steerable propulsion wheels move the chassis.