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公开(公告)号:US12103539B2
公开(公告)日:2024-10-01
申请号:US17000505
申请日:2020-08-24
Inventor: Clinton L. Schumann , Scott T. Sanford , Geoff Bauer , Joseph A. LaBarbera
CPC classification number: B60W40/068 , B60W10/04 , B60W10/18 , B60W10/20 , B60W60/0015 , G05D1/0088 , G05D1/106 , B60W2556/65 , H04W4/46
Abstract: A number of illustrative variations may include the steps of providing a first vehicle including at least one sensor, a controller configured to process sensor data, and a vehicle communication system; providing a driving surface having an actual coefficient of friction; determining at least one estimated driving surface coefficient of friction; communicating the at least one estimated driving surface coefficient from the first vehicle to the vehicle communication system; and communicating the at least one estimated driving surface coefficient from the vehicle communication system to at least one other vehicle directly or indirectly.
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公开(公告)号:US20240308485A1
公开(公告)日:2024-09-19
申请号:US18674238
申请日:2024-05-24
Inventor: Clinton L. Schumann , Scott T. Sanford
IPC: B60T8/24 , B60T8/172 , B60T8/1755 , B62D7/22 , B62D15/02
CPC classification number: B60T8/246 , B60T8/172 , B60T8/1755 , B62D7/228 , B62D15/021 , B60T2201/16
Abstract: Steering a vehicle may include applying a net brake-steering force to a steered wheel sufficient to affect a steering moment upon the steered wheel sufficient to move the steered wheel away from a zero steering angle, and resisting movement of the steered wheel back toward the zero steering angle.
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3.
公开(公告)号:US20240092326A1
公开(公告)日:2024-03-21
申请号:US18363982
申请日:2023-08-02
Inventor: Michael S. Wyciechowski , Scott T. Sanford
CPC classification number: B60T8/92 , B60T8/52 , B60T2260/02
Abstract: A number of variations may include a system, method, a non-transitory computer readable medium having instructions thereon executable by an electronic processor to implement functionality comprising enhancing the curvature capability of a tertiary rack and pinion actuator by using brake-to-steer while the tertiary rack and pinion actuator is operating.
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公开(公告)号:US11472413B2
公开(公告)日:2022-10-18
申请号:US16774431
申请日:2020-01-28
Inventor: Michael S. Wyciechowski , Scott T. Sanford , Mariam S. George , Tejas Varunjikar
IPC: B60W40/068 , B60W40/105 , G05D1/02
Abstract: A number of illustrative variations may include a method of providing a reliable driving surface friction coefficient estimate.
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公开(公告)号:US20190084614A1
公开(公告)日:2019-03-21
申请号:US16134126
申请日:2018-09-18
Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
Inventor: Steven D. Klein , Kai Zheng , Scott T. Sanford
Abstract: According to one or more embodiments a steer by wire steering system includes a handwheel actuator that provides a commanded position for a rack of a vehicle. The steer by wire steering system further includes a roadwheel actuator that moves the rack to a rack position based on the commanded position from the handwheel actuator. The steer by wire steering system further includes a diagnostic apparatus to compute a reference position based on the commanded position, and to compute a reference tracking error based on a difference between the reference position and the rack position. The diagnostic apparatus further determines a fault condition with the steer by wire system using the reference tracking error.
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6.
公开(公告)号:US20250050850A1
公开(公告)日:2025-02-13
申请号:US18366371
申请日:2023-08-07
Inventor: Omkar Karve , Sarin Kodappully , Alexander Jennings , Michael S. Wyciechowski , Scott T. Sanford , Iulian Ungureanu
IPC: B60T8/1755 , B60T8/17 , B60W10/04 , B60W10/18 , B60W30/02
Abstract: Disclosed is a number of variations that may include a method, system, or computer product useful in determining an intended yaw or yaw rate that a driver desires using a model, comparing the yaw or yaw rate with the actual vehicle yaw or yaw rate to determining a yaw error or yaw rate error, using the yaw error or yaw rate error in a model predictive control to determine the brake pressure required to minimize or reduced to zero the yaw error or the yaw rate error.
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公开(公告)号:US20240075981A1
公开(公告)日:2024-03-07
申请号:US18458632
申请日:2023-08-30
Inventor: Michael S. Wyciechowski , Iulian Ungureanu , Thomas Raste , Scott T. Sanford
IPC: B62D5/04 , B60W10/18 , B60W30/18 , B60W40/105 , B60W50/00 , B60W50/029
CPC classification number: B62D5/0484 , B60W10/18 , B60W30/18109 , B60W40/105 , B60W50/0097 , B60W50/029 , B60W2050/0031 , B60W2050/0292 , B60W2510/182 , B60W2710/182
Abstract: Disclosed is a method using a brake-to-steer model predictive control to providing a limited level of lateral control for self-driving or semi-self-driving vehicles, when a component of a vehicle steering system fails or is failing.
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公开(公告)号:US11820377B2
公开(公告)日:2023-11-21
申请号:US17950440
申请日:2022-09-22
Inventor: Joseph A. LaBarbera , Michael S. Wyciechowski , Clinton L. Schumann , Emmanuel Garcia , Scott T. Sanford , Gregory J. Katch
IPC: B60W30/18 , B60W10/184 , B60W10/08 , B60W10/11 , B60W10/06
CPC classification number: B60W30/18145 , B60W10/06 , B60W10/08 , B60W10/11 , B60W10/184 , B60W2520/105 , B60W2710/0644 , B60W2710/0666 , B60W2710/081 , B60W2710/083 , B60W2710/105 , B60W2710/1038 , B60W2710/18
Abstract: A number of illustrative variations may include a system including brake-to-steer algorithms may achieve lateral control of a vehicle without longitudinal compensation but may also force a vehicle to slow down too rapidly before appropriate lateral movement can be achieved and may deliver an unnatural driving experience for vehicle occupants. A more natural feeling deceleration may be achieved by optimally selecting appropriate transmission shifts to allow for optimal engine speed or electric motor speed and torque based on current vehicle speed thereby reducing undesirably longitudinal disturbance.
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公开(公告)号:US11414122B2
公开(公告)日:2022-08-16
申请号:US16290342
申请日:2019-03-01
Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
Inventor: Kai Zheng , Steven Klein , Mariam Swetha George , Scott T. Sanford
Abstract: According to one or more embodiments, a steer by wire steering system includes a handwheel actuator, a roadwheel actuator, and a resynchronization module to dynamically adjust handwheel position that is used for rack position reference calculation. The dynamic adjustment includes determining a desynchronization amount based on a difference in an actual handwheel position and a synchronized handwheel position. The dynamic adjustment further includes computing a handwheel adjustment using the desynchronization amount, a vehicle speed, and a handwheel speed. The dynamic adjustment further includes computing an adjusted handwheel position based on the handwheel adjustment and the actual handwheel position. The dynamic adjustment further includes updating the reference rack position based on the adjusted handwheel position. The dynamic adjustment is continuously repeated until the handwheel adjustment is substantially equal to zero.
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公开(公告)号:US11254351B2
公开(公告)日:2022-02-22
申请号:US15457411
申请日:2017-03-13
Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION
Inventor: Zaki Ryne , Rakesh Mitra , Tao Yang , Scott T. Sanford , Michael R. Story
Abstract: Technical features of a steering system include a control module that dynamically determines an operating mode based on a set of input signal values such as lateral acceleration signal values and corresponding handwheel position values. The control module dynamically determines and learns classification boundaries between multiple operating modes based the input signal values. The control module further calibrates the steering system according to operating mode that is determined using the classification boundaries.
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