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    BUSHING WITH INTERNAL SNUBBERS PRODUCED THROUGH A FOLDING PROCESS
    3.
    发明申请
    BUSHING WITH INTERNAL SNUBBERS PRODUCED THROUGH A FOLDING PROCESS 有权

    公开(公告)号：US20240401660A1

    公开(公告)日：2024-12-05

    申请号：US18327519

    申请日：2023-06-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Mark Francis RUDNICKI ,  Wei Ding ,  Yu Cao

    IPC: F16F1/38 ,  F16F1/371

    Abstract: A bushing includes a hollow metal insert and a rubber element receiving the hollow cylindrical metal insert therein. The rubber element includes an inner snubber including a first plurality of ridges, a web portion extending from the inner snubber and looping back/folded to an outer snubber disposed outward of the inner snubber. The outer snubber includes a second plurality of ridges interleaved with the first plurality of ridges. A can having an outer wall receives the rubber element therein. A threaded stud extends through the hollow metal insert and includes a first end configured to be engaged with a component to be supported.

    METHODS FOR STEERING SYSTEM IMPEDANCE CONTROL
    6.
    发明申请
    METHODS FOR STEERING SYSTEM IMPEDANCE CONTROL 审中-公开

    公开(公告)号：US20200339176A1

    公开(公告)日：2020-10-29

    申请号：US16394377

    申请日：2019-04-25

    Applicant: GM Global Technology Operations LLC

    Inventor： Yu Cao ,  George E. Doerr ,  Peter J. Judis

    IPC: B62D1/183 ,  G05D1/00 ,  B62D1/187 ,  B62D1/181

    Abstract: A method for controlling a vehicle includes providing a vehicle steering system including a moveable steering column assembly and a moveable steering wheel assembly, at least one actuator coupled to the moveable steering column assembly and configured to move the vehicle steering system from a first position to a second position, providing a sensor connected to the vehicle steering system and configured to measure a steering system displacement, providing a controller electronically connected to the sensor and the at least one actuator, monitoring sensor data received from the sensor to determine a measured steering system displacement, comparing the measured steering system displacement with a tracking displacement, determining whether a condition is satisfied, and, if the condition is satisfied, automatically generating a control signal to control the at least one actuator.

    System for passively and actively monitoring and evaluating an electric power steering system
    7.
    发明授权
    System for passively and actively monitoring and evaluating an electric power steering system 有权

    公开(公告)号：US11084526B2

    公开(公告)日：2021-08-10

    申请号：US15988444

    申请日：2018-05-24

    Applicant: GM Global Technology Operations LLC

    Inventor： Bo Yu ,  Ian Y. Hwa ,  Adam J. Kloess ,  Yu Cao

    IPC: B62D5/04 ,  G06F17/14 ,  B62D15/02 ,  B62D5/00 ,  B62D6/00

    Abstract: A system and method for passively and actively monitoring and determining the location of at least one mechanical anomaly for a power steering system of a vehicle is disclosed. The system includes one or more processors and a memory coupled to the processors. The memory stores a baseline waveform and data comprising program code that, when executed by the one or more processors, causes the system to receive at least one excitation signal and at least one response signal. The power steering system creates the response signal in response to receiving the excitation signal. In response to receiving the excitation signal and the response signal, the system is caused to estimate the frequency response between the excitation signal and the response signal based on a fast Fourier transform (FFT) algorithm. The frequency response is represented by an estimated waveform.

    Methods for steering system impedance control
    8.
    发明授权
    Methods for steering system impedance control 有权

    公开(公告)号：US10654511B1

    公开(公告)日：2020-05-19

    申请号：US16176586

    申请日：2018-10-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yu Cao ,  Bo Yu ,  Raed N. Abuaita

    IPC: B62D1/181 ,  B62D1/04 ,  B62D1/183

    Abstract: An exemplary method for controlling a vehicle includes providing a vehicle steering system including a moveable steering column assembly and a moveable steering wheel assembly, a first actuator and a second actuator, the first and second actuators configured to move vehicle steering system from a first position to a second position, providing a plurality of sensors, the sensors configured to measure a force characteristic, providing a controller electronically connected to the sensors and the vehicle steering system, monitoring first sensor data received from the first sensor and second sensor data received from the second sensor, generating a reference model based on a desired output displacement and the first and second sensor data, calculating, a revised output displacement based on the reference model, and automatically generating a first control signal to control the first actuator and a second control signal to control the second actuator.

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