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1.发明授权公开(公告)号：US12116062B2
公开(公告)日：2024-10-15
申请号：US17690254
申请日：2022-03-09
Applicant: TOYOTA RESEARCH INSTITUTE, INC.
Inventor： Manuel Ludwig Kuehner , Hiroshi Yasuda
Abstract: A system is provided for implementing steering wheel controls, namely a center indicator on a decouplable steering wheel that is visible to the driver. The center indication controls provide a center indicator for a temporarily decouplable steering wheel, where the center indicator is visibly generated on the steering wheel. A system includes center indicator devices that are disposed along a perimeter on a steering wheel. A controller determines a position on the steering wheel that corresponds to a center position, and selects one of the plurality of center indicator devices at the determined center position on the steering wheel. The selected center indicator device produces feedback to the driver to indicate the center position on the steering wheel. Feedback from the center indicator allows drivers to be better aware of the steering wheel's position and to make safe and/or accurate maneuvers until the steering wheel is properly recoupled.
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公开(公告)号：US12116061B2
公开(公告)日：2024-10-15
申请号：US17632458
申请日：2020-11-16
Applicant: Nissan Motor Co., Ltd.
Inventor： Kazuhiro Igarashi
CPC classification number: B62D6/008 , B62D15/021
Abstract: A steering control method includes: detecting a steering angle of a steering wheel; calculating first steering reaction force which becomes greater when the detected steering angle is greater; calculating a delayed steering angle by delaying a phase of the detected steering angle; calculating second steering reaction force which becomes greater when an absolute value of a deviation angle being a deviation between the detected steering angle and the calculated delayed steering angle is greater; and applying steering reaction force based on a sum of the first steering reaction force and the second steering reaction force to the steering wheel.
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公开(公告)号：US12097912B2
公开(公告)日：2024-09-24
申请号：US17435494
申请日：2020-03-06
Applicant: NSK LTD.
Inventor： Takahiro Tsubaki
Abstract: A control apparatus of a steering system for vehicles that controls a turning mechanism by using steering information communicated electrically, includes a turning angle control section that calculates a motor current command value to make a turning angle detected in the turning mechanism follow a target turning angle, and has a friction compensating section that calculates a compensation motor current command value for compensating a follow-up delay of the turning angle caused by a friction in the turning mechanism by performing filter processing to velocity information. The turning angle control section performs compensation by the compensation motor current command value in calculation of the motor current command value, and the control apparatus controls the turning mechanism based on the motor current command value.
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公开(公告)号：US12084138B2
公开(公告)日：2024-09-10
申请号：US17810346
申请日：2022-07-01
Applicant: HONDA MOTOR CO., LTD.
Inventor： Jun Ishio
IPC: B62D6/00
CPC classification number: B62D6/008
Abstract: A steering counterforce device of steer-by-wire includes a shaft force estimator which estimates a shaft force of a steering actuator based on an electrical current value of the steering actuator causing steered wheels to steer, and a model steering force setter which sets a model steering force based on the shaft force estimated by the shaft force estimator. This steering counterforce device of steer-by-wire controls electrical current supplied to a steering counterforce actuator which grants counterforce torque to an operator, so that steering torque of the operator of steer-by-wire becomes a model steering force set by the model steering force setter.
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公开(公告)号：US12084137B2
公开(公告)日：2024-09-10
申请号：US17637765
申请日：2020-09-25
Applicant: HITACHI ASTEMO, LTD.
Inventor： Satoru Kuragaki
CPC classification number: B62D6/008 , B62D5/008 , B62D5/0481
Abstract: An actual steering ratio, which is a linkage relationship between a steering target wheel and a steering wheel, is controlled based on a setting steering ratio. Then, when a “mismatch” occurs between the actual steering ratio and the setting steering ratio due to an emergent avoidance motion, a steering control apparatus corrects the setting steering ratio using a corrected steering ratio so as to reduce the “mismatch”, thereby improving the consistency of the linkage relationship between a driver's steering operation and the steering target wheel, allowing the relationship between a rotational angle of the steering wheel and a steering angle of the steering target wheel to match the steering ratio, and thus reducing an uncomfortable feeling evoked in a driver.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12084121B2
公开(公告)日：2024-09-10
申请号：US17786683
申请日：2020-12-08
Applicant: Bayerische Motoren Werke Aktiengesellschaft
Inventor： Johannes Albrecht , Matthias Schoelzel
CPC classification number: B62D5/006 , B62D6/008 , B62D5/0484 , B62D6/002 , B62D15/0215
Abstract: A steer-by-wire steering system for a vehicle includes a steering input device, a feedback actuator, and a steering assembly that can be connected to at least one steerable vehicle wheel. The steering assembly has a steering actuator device, a control device, and a feedback actuator monitoring device. The steer-by-wire steering system further has a synchronization monitoring device that is designed and configured, in at least one operating state of the steer-by-wire steering system, to determine a synchronization offset between a current position of the steering input device and a current position of the steering actuator device and/or of the at least one steerable vehicle wheel. The control device is further designed and configured, in at least one operating state of the steer-by-wire steering system, to further control the steering actuator device in accordance with the synchronization offset determined by the synchronization monitoring device.
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公开(公告)号：US12054193B2
公开(公告)日：2024-08-06
申请号：US17811134
申请日：2022-07-07
Applicant: HYUNDAI MOBIS CO., LTD.
Inventor： Lyoung Tae Kim
CPC classification number: B62D15/025 , B62D5/0421 , B62D5/0481 , B62D6/002 , B62D6/008 , B62D3/12
Abstract: 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.
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公开(公告)号：US20240227932A1
公开(公告)日：2024-07-11
申请号：US18612470
申请日：2024-03-21
Applicant: thyssenkrupp Presta AG , Honda Motor Co., Ltd.
Inventor： Péter KAKAS , Imre SZEPESSY , Munetsugu HANJI , Yosuke OJIMA
CPC classification number: B62D6/008 , B62D5/0484 , B62D5/0487
Abstract: A method to control a steer-by-wire steering system of a road vehicle, the steer-by-wire steering system including a feedback actuator to apply a feedback torque to a steering wheel and a road wheel actuator to turn steerable road wheels with two redundant power packs each, the method including, if a failure in the road wheel actuator is detected, increasing the feedback torque provided by the feedback actuator to a value higher than a calculated feedback torque, and if a failure in one power pack of the feedback actuator is detected, increasing the feedback torque provided by a functioning power pack of the feedback actuator to a value higher than the calculated feedback torque.
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9.发明授权公开(公告)号：US12005978B2
公开(公告)日：2024-06-11
申请号：US17637112
申请日：2020-08-26
Applicant: HL MANDO CORPORATION
Inventor： Je Hyeon Yeon
IPC: B62D6/00
CPC classification number: B62D6/008
Abstract: Disclosed are a steering control device, a steering control method, and a steering support system including same. Particularly, the steering control device according to the present disclosure comprises: a noise frequency calculation unit for calculating the noise frequency of noise transmitted to a wheel; a noise frequency filtering unit for determining filtering degree on the basis of two or more driving modes, and filtering the noise frequency according to the filtering degree; and a reactive torque calculation unit for calculating reactive torque on the basis of the filtered noise frequency.
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公开(公告)号：US11999426B2
公开(公告)日：2024-06-04
申请号：US17635043
申请日：2020-06-25
Applicant: Volkswagen Aktiengesellschaft
Inventor： Kristof Van Ende , Jonas Kaste
Abstract: A method for estimating a steering wheel torque for a mechanical feedback at a steering wheel of a steering system of a motor vehicle is disclosed, comprising: receiving and/or detecting at least one current measurement value of at least one state variable of the motor vehicle by suitable input means; estimating the current steering wheel torque by means of a controller; outputting the estimated steering wheel torque as a steering wheel torque signal, wherein the estimation is carried out by means of a parameterizable steering model, wherein current measurement values of at least a subset of the at least one state variable are fed as input data to the parameterizable steering model for this purpose, and wherein nonlinearities of the steering system are estimated based on the current measurement values of at least the subset of the at least one state variable using a method of artificial intelligence.
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