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公开(公告)号：US11235799B2
公开(公告)日：2022-02-01
申请号：US16385425
申请日：2019-04-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , John D. Sopoci
IPC: B62D5/04
Abstract: Systems and methods are provided for limit cycle detection and cessation. A control system generates a drive signal with at least one drive component. An actuator effects a response to the drive signal and a sensor measures the response. Characteristics of the drive signal and of the drive components are accessed by a controller. The characteristics are compared to a predetermined set of characteristics. When the characteristics fall within the predetermined set of characteristics, a magnitude of at least one of the characteristics is evaluated. When the magnitude exceeds a predetermined value indicative of the limit cycle, an action is undertaken to stop the limit cycle.
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公开(公告)号：US20210061379A1
公开(公告)日：2021-03-04
申请号：US16552473
申请日：2019-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , Wojciech E. Suchta
IPC: B62D55/112 , B60K5/12 , F16F13/30
Abstract: A hydraulic mount assembly includes a mount body defining a cavity. A powertrain includes a dynamic mass, and a structure that supports the dynamic mass. The assembly is attached to the structure and supports the dynamic mass. A first plate is fixed relative to the mount body inside the cavity to separate the cavity into a first chamber and a second chamber. The first plate defines a plurality of first passages that fluidly connects the first and second chambers. A decoupler is disposed between the first and second chambers. An actuator is coupled to the first plate. The decoupler is movable in response to actuation of the actuator. The decoupler abuts the first plate when in a locked position to prevent fluid communication through the first passages. The decoupler is movable relative to the first plate when in an unlocked position to allow fluid communication through the first passages.
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公开(公告)号：US20200284682A1
公开(公告)日：2020-09-10
申请号：US16295129
申请日：2019-03-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek
IPC: G01M1/36
Abstract: Methods and systems for installing tires to corresponding wheels are disclosed. An example method includes measuring non-uniformity of a first assembled tire and wheel at three or more different relative rotational positions to determine corresponding measurements of non-uniformity according to a predetermined metric, and determining that each of the measurements are above a predetermined non-uniformity limit. A rotationally relative installation position for the tire on the wheel may be determined using at least these measurements, with the position of the tire relative to the wheel in the rotationally relative installation position being different from each of the first, second, and third relative rotational positions. In examples where at least a second tire/wheel combination is measured below the non-uniformity threshold, installation of the second tire/wheel may conclude at the position where the assembled tire/wheel is measured below the non-uniformity threshold.
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公开(公告)号：US20190283654A1
公开(公告)日：2019-09-19
申请号：US15921013
申请日：2018-03-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek
IPC: B60P7/08
Abstract: A method for securing a vehicle to a vehicle transport includes placing a first strap about a portion of a vehicle wheel, the first strap intersecting a circumference of the vehicle wheel, positioning a second strap about another portion of the vehicle wheel, the second strap intersecting a circumference of the vehicle wheel, connecting the first strap to the second strap with a connecting strap, and securing the connecting strap to the vehicle transport.
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公开(公告)号：US20180252618A1
公开(公告)日：2018-09-06
申请号：US15446577
申请日：2017-03-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , John D. Sopoci
IPC: G01M17/007 , G01M7/02 , B24B5/36
CPC classification number: G01M17/007 , B24B5/366 , G01M7/02 , G01M7/022
Abstract: A method for testing a vehicle includes designing a tire that has a runout as a function of an angular position of the tire that induces a desired vibration in a vehicle when the tire operates on the vehicle. The method also includes performing a test on the vehicle while operating the vehicle with the tire having the design that induces a desired vibration in a vehicle.
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Patent Agency Ranking
公开(公告)号：US09354137B2
公开(公告)日：2016-05-31
申请号：US14166356
申请日：2014-01-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jinshuo Zhu , Kenneth L. Oblizajek , Christopher A. Stirlen , John D. Sopoci , Zachary M. Shehabi
CPC classification number: G01M7/02 , B60C99/006 , B60C2019/004 , G01M7/08 , G01M17/02 , G01M17/025
Abstract: Methods and systems are provided for determining frequencies associated with tire crown bending. The system includes a vibration generating device configured to excite vibrations through a tire. The system further includes a vibration sensing arrangement configured to sense vibrations at a plurality of sensing points on the tire. A computer is in communication with the vibration sensing arrangement and configured to determine a first frequency associated with bending of the crown of the tire based at least partially on phase differences between the sensed vibrations at the plurality of points on the tire.
Abstract translation: 提供了用于确定与轮胎冠部弯曲相关联的频率的方法和系统。 该系统包括被配置为通过轮胎激励振动的振动产生装置。 该系统还包括被配置为感测轮胎上的多个感测点处的振动的振动感测装置。 计算机与振动检测装置通信，并且被配置为至少部分地基于轮胎上的多个点处感测到的振动之间的相位差来确定与轮胎冠部的弯曲有关的第一频率。
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公开(公告)号：US11585403B2
公开(公告)日：2023-02-21
申请号：US16588276
申请日：2019-09-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , Nojan Medinei , Wojciech E. Suchta
Abstract: Methods of attenuating vibration transfer to a body of a vehicle using a dynamic mass of the vehicle via minimizing a particular angular frequency of a wheel. One method includes receiving vehicle information over a time interval and determining, based on the vehicle information, an instantaneous angular velocity that corresponds to a particular angular frequency of the wheel. This method includes generating a gain-and-phase-compensated actuator drive command to counteract a vibration that occurs at the particular angular frequency of the wheel, which is based on the instantaneous angular velocity, and communicating the gain-and-phase-compensated actuator drive command to a hydraulic mount assembly that supports the dynamic mass. This method includes actuating an actuator of the hydraulic mount assembly in response to the gain-and-phase-compensated actuator drive command in order to minimize the vibration transfer to the body due to the vibration that occurs at the particular angular frequency of the wheel.
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公开(公告)号：US11326664B2
公开(公告)日：2022-05-10
申请号：US16434372
申请日：2019-06-07
Applicant: GM Global Technology Operations LLC
Inventor： Kenneth L. Oblizajek , Larry G. Gepfrey , John D. Sopoci
Abstract: A method for reshaping an electric drive signal of a real-time damper in a sprung mass system includes detecting a periodic frequency and magnitude of a target periodic vibration of a sprung mass. The periodic vibration has velocity and elasticity components that are 90 degrees out-of-phase. An electric drive signal to the real-time damper is reshaped by a controller depending on polarity of the velocity component to thereby generate a composite drive signal. The damper is energized using the composite drive signal to modify a damper force. Reshaping the electric drive signal includes injecting a force and/or an intermittent drive suppression component onto the electric drive signal based on the frequency and magnitude. The sprung mass system may have a frame and body, motion and wheel speed sensors, the real-time dampers, road wheels, and a controller programmed to perform the method.
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9.发明授权公开(公告)号：US10300757B2
公开(公告)日：2019-05-28
申请号：US15590495
申请日：2017-05-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , Wojciech E. Suchta
Abstract: A hydraulic mount apparatus includes a housing defining a cavity. The apparatus also includes an annular member disposed in the cavity. The annular member is secured to the housing to split the cavity into a first chamber and a second chamber. The apparatus further includes a pressure relief apparatus coupled to the housing. The pressure relief apparatus is configured to allow fluid communication between the first and second chambers in response to a predetermined pressure threshold being reached in at least one of the first and second chambers. A suspension system including a shock absorber and a link is coupled to the shock absorber. The suspension system further includes the hydraulic mount apparatus coupled to one of the shock absorber and the link.
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10.发明申请公开(公告)号：US20180326807A1
公开(公告)日：2018-11-15
申请号：US15590495
申请日：2017-05-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Kenneth L. Oblizajek , Wojciech E. Suchta
CPC classification number: B60G15/068 , B60G7/02 , B60G13/14 , B60G2204/128 , B60G2204/143 , F16F9/54 , F16F13/1463
Abstract: A hydraulic mount apparatus includes a housing defining a cavity. The apparatus also includes an annular member disposed in the cavity. The annular member is secured to the housing to split the cavity into a first chamber and a second chamber. The apparatus further includes a pressure relief apparatus coupled to the housing. The pressure relief apparatus is configured to allow fluid communication between the first and second chambers in response to a predetermined pressure threshold being reached in at least one of the first and second chambers.A suspension system including a shock absorber and a link is coupled to the shock absorber. The suspension system further includes the hydraulic mount apparatus coupled to one of the shock absorber and the link.
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