公开(公告)号：US20250065948A1

公开(公告)日：2025-02-27

申请号：US18813210

申请日：2024-08-23

Applicant: Steering Solutions IP Holding Corporation

Inventor： Jeffrey R. Meyer ,  Michael A. Eickholt

IPC: B62D6/00 ,  B62D5/00

Abstract: A method for controlling a motor of a road wheel actuator (RWA) in a steer-by-wire (SbW) steering system of a vehicle includes providing a motor torque command signal to the motor, providing a dithering signal to the motor such that the dithering signal is applied to the motor torque command signal, the dithering signal being configured to allow road disturbances to cause movement of a rack bar of the SbW steering system, sensing the road disturbances, and generating an emulation signal based on the sensed road disturbances.

公开(公告)号：US20200346688A1

公开(公告)日：2020-11-05

申请号：US16399274

申请日：2019-04-30

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Jeffrey M. Otto ,  Michael A. Eickholt ,  Josiah G. Ward

IPC: B62D5/04 ,  B60W50/04 ,  B62D15/02

Abstract: A method to determine, in real time, a use-life of a steering system includes tracking an attribute signal associated with the steering system. The method further includes, based on a determination that the attribute signal rises above an upper threshold and subsequently falls below a lower threshold, selecting a subset of categories based on a frequency content of the attribute signal. The method further includes selecting a category from the subset of categories based on a peak load occurring in sequence to the attribute signal via a secondary attribute signal. The method further includes incrementing a counter for the selected category. The method further includes computing the use-life based on a ratio of the counter for the selected category and a predetermined count for said selected category.

公开(公告)号：US11648980B2

公开(公告)日：2023-05-16

申请号：US16399274

申请日：2019-04-30

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Jeffrey M. Otto ,  Michael A. Eickholt ,  Josiah G. Ward

IPC: B62D5/04 ,  B62D15/02 ,  B60W50/04 ,  B60W50/00

CPC classification number: B62D5/0481 ,  B60W50/045 ,  B62D15/021 ,  B60W2050/0005

Abstract: A method to determine, in real time, a use-life of a steering system includes tracking an attribute signal associated with the steering system. The method further includes, based on a determination that the attribute signal rises above an upper threshold and subsequently falls below a lower threshold, selecting a subset of categories based on a frequency content of the attribute signal. The method further includes selecting a category from the subset of categories based on a peak load occurring in sequence to the attribute signal via a secondary attribute signal. The method further includes incrementing a counter for the selected category. The method further includes computing the use-life based on a ratio of the counter for the selected category and a predetermined count for said selected category.

公开(公告)号：US09738309B2

公开(公告)日：2017-08-22

申请号：US14954210

申请日：2015-11-30

Applicant: Steering Solutions IP Holding Corporation

Inventor： Tejas M. Varunjikar ,  Ashok Chandy ,  Michael A. Eickholt

IPC: A01B69/00 ,  B62D6/00 ,  B62D11/00 ,  B62D12/00 ,  B63G8/20 ,  B63H25/04 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  B62D5/04

CPC classification number: B62D5/0472 ,  B62D5/0481 ,  B62D6/008

Abstract: A system for actively damping a power steering system includes a damping activation module that generates a damping activation signal based on a motor velocity signal, a t-bar torque signal, and a final motor command; a command calculation module that generates a calculated command based on the motor velocity signal and a vehicle speed signal; and a damping calculation module that generates a damping command based on the damping activation signal and the calculated command, the damping command reduces a motor velocity of a motor of the power steering system to mitigate a rack disturbance.

公开(公告)号：US20180354548A1

公开(公告)日：2018-12-13

申请号：US15619254

申请日：2017-06-09

Applicant: Steering Solutions IP Holding Corporation

Inventor： Michael A. Eickholt ,  Fred N. Golda ,  Paul E. Kern ,  Jeffrey L. Marr ,  Jeffrey M. Otto ,  Emily N. Stilwell

IPC: B62D5/04 ,  B62D3/12 ,  F16H25/22 ,  F16H7/02 ,  F16H55/36

CPC classification number: B62D5/0448 ,  B62D3/12 ,  B62D5/0424 ,  F16H7/02 ,  F16H25/2204 ,  F16H55/36 ,  F16H2025/2096 ,  F16H2055/366

Abstract: A pulley assembly for a road wheel actuator assembly includes a driven pulley assembly, a driven pulley, and a belt. The driven pulley assembly includes a driven pulley and a retainer. The driven pulley is at least partially disposed about a ball nut that is operatively connected to a rack bar. The retainer is received within the driven pulley. The belt is arranged to connect the driven pulley assembly to the drive pulley.

公开(公告)号：US20170151977A1

公开(公告)日：2017-06-01

申请号：US14954210

申请日：2015-11-30

Applicant: Steering Solutions IP Holding Corporation

Inventor： Tejas M. Varunjikar ,  Ashok Chandy ,  Michael A. Eickholt

IPC: B62D5/04

CPC classification number: B62D5/0472 ,  B62D5/0481 ,  B62D6/008

Abstract: A system for actively damping a power steering system includes a damping activation module that generates a damping activation signal based on a motor velocity signal, a t-bar torque signal, and a final motor command; a command calculation module that generates a calculated command based on the motor velocity signal and a vehicle speed signal; and a damping calculation module that generates a damping command based on the damping activation signal and the calculated command, the damping command reduces a motor velocity of a motor of the power steering system to mitigate a rack disturbance.

公开(公告)号：US20220402544A1

公开(公告)日：2022-12-22

申请号：US17843477

申请日：2022-06-17

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Thomas J. Stutts ,  Michael A. Eickholt ,  Steven J. Collier-Hallman ,  Julie A. Kleinau ,  Prerit Pramod

IPC: B62D5/04

Abstract: A method includes receiving motor velocity data, and, in response to a determination that the motor velocity data indicates that a velocity of a motor is below a threshold velocity: calculating a thermal metric corresponding to a phase imbalance of the motor; identifying at least one thermal mitigation parameter based on the thermal metric; generating at least one thermal management motor position command based on the at least one thermal mitigation parameter; and selectively controlling the motor according to the thermal management motor position command.

公开(公告)号：US10322744B2

公开(公告)日：2019-06-18

申请号：US15619254

申请日：2017-06-09

Applicant: Steering Solutions IP Holding Corporation

Inventor： Michael A. Eickholt ,  Fred N. Golda ,  Paul E. Kern ,  Jeffrey L. Marr ,  Jeffrey M. Otto ,  Emily N. Stilwell

IPC: B62D5/04 ,  B62D3/12 ,  F16H7/02 ,  F16H25/22 ,  F16H55/36 ,  F16H25/20

Abstract: A pulley assembly for a road wheel actuator assembly includes a driven pulley assembly, a driven pulley, and a belt. The driven pulley assembly includes a driven pulley and a retainer. The driven pulley is at least partially disposed about a ball nut that is operatively connected to a rack bar. The retainer is received within the driven pulley. The belt is arranged to connect the driven pulley assembly to the drive pulley.