Many-to-many file dissemination protocol for vehicular networks

    公开(公告)号:US10536835B2

    公开(公告)日:2020-01-14

    申请号:US15680859

    申请日:2017-08-18

    Abstract: A system and method of wirelessly communicating data originating at a central facility between a plurality of vehicles using vehicle-to-vehicle short-range wireless communications includes wirelessly receiving, at a seed vehicle, one or more data files that have been encoded into data chunks from a central facility; storing the data chunks included in the received data file(s) at the vehicle; receiving interest messages for the data file(s) at the seed vehicle from each of a plurality of other vehicles via a short-range wireless broadcast, wherein the interest messages include one or more data file names and, for each data file name, the identity of the data chunks requested; identifying data files and data chunks existing in more than one received interest message; and transmitting the data chunks to the plurality of vehicles via the short-range wireless broadcast.

    METHODS FOR STEERING SYSTEM OVERLOAD DETECTION

    公开(公告)号:US20200001912A1

    公开(公告)日:2020-01-02

    申请号:US16022824

    申请日:2018-06-29

    Abstract: An exemplary method for controlling a vehicle includes providing a vehicle steering system, the vehicle steering system including a moveable steering column assembly and a motor coupled to the steering column assembly, providing a sensor connected to the motor and configured to measure a motor characteristic, providing a controller electronically connected to the sensor and the vehicle steering system, monitoring, by the controller, sensor data received from the sensor if a trigger condition is satisfied, analyzing, by the controller, the sensor data related to the motor characteristic to determine if an overload condition is satisfied, and if the overload condition is satisfied, automatically generating, by the controller, a control signal to control the motor.

    SYSTEMS AND METHODS FOR DETERMINING STEERING PERFORMANCE

    公开(公告)号:US20190176876A1

    公开(公告)日:2019-06-13

    申请号:US15840974

    申请日:2017-12-13

    Inventor: Ian Y. Hwa Bo Yu

    CPC classification number: B62D5/0481 B62D5/0457 B62D5/046 G07C5/0808

    Abstract: Methods and apparatus are provided for determining steering performance. The method includes: generating a torque disturbance signal; applying the torque disturbance signal to a torque command of the steering system; measuring a value of torque on the steering system; recording the measured value and a value associated with the torque disturbance signal; computing at least one performance metric of the steering system based on the recorded measured value and the recorded value associated with the torque disturbance signal; and selectively improving a steering system based on the at least one performance metric.

    ESTIMATING STABILITY MARGINS IN A STEER-BY-WIRE SYSTEM

    公开(公告)号:US20190118855A1

    公开(公告)日:2019-04-25

    申请号:US15787883

    申请日:2017-10-19

    CPC classification number: B62D5/0481 B62D5/001 B62D5/0457 B62D5/0472 G05B15/02

    Abstract: Examples of techniques for estimating stability margins in a steer-by-wire system are disclosed. In one example implementation, a method for open-loop steer-by-wire (SbW) system linearization includes linearizing, by a processing device, an open-loop SbW system at different operating points. The method further includes determining, by the processing device, an open-loop transfer function of the op en-loop SbW system. The method further includes estimating, by the processing device, margins of stability for the open-loop SbW system. The method further includes implementing the margins of stability into a vehicle to reduce instability in a steering system of the vehicle.

    MANY-T0-MANY FILE DISSEMINATION PROTOCOL FOR VEHICULAR NETWORKS

    公开(公告)号:US20190058963A1

    公开(公告)日:2019-02-21

    申请号:US15680859

    申请日:2017-08-18

    Abstract: A system and method of wirelessly communicating data originating at a central facility between a plurality of vehicles using vehicle-to-vehicle short-range wireless communications includes wirelessly receiving, at a seed vehicle, one or more data files that have been encoded into data chunks from a central facility; storing the data chunks included in the received data file(s) at the vehicle; receiving interest messages for the data file(s) at the seed vehicle from each of a plurality of other vehicles via a short-range wireless broadcast, wherein the interest messages include one or more data file names and, for each data file name, the identity of the data chunks requested; identifying data files and data chunks existing in more than one received interest message; and transmitting the data chunks to the plurality of vehicles via the short-range wireless broadcast.

    METHOD OF SELF-DIAGNOSIS FOR POWER STEERING ASSEMBLY

    公开(公告)号:US20190023314A1

    公开(公告)日:2019-01-24

    申请号:US15653022

    申请日:2017-07-18

    CPC classification number: B62D5/0481 B62D5/0457 B62D5/0463 B62D6/00

    Abstract: A power steering assembly includes a steering unit and a motor. A controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of self-diagnosis for the assembly. If a plurality of enabling conditions is met, the steering unit is caused to rotate through a plurality of angles from an original position, via a command to the motor. The steering unit is caused to rotate first in a forward direction up to a predefined maximum angle, second in a reverse direction up to a negative of the predefined maximum angle and third in the forward direction back to the original position. The controller is configured to obtain motor torque data characterizing torque of the motor at the plurality of angles. The assembly is controlled based at least partially on the motor torque data and predetermined baseline data.

    Method and Apparatus of Using Separate Reverse Channel for User Input in Mobile Device Display Replication
    58.
    发明申请
    Method and Apparatus of Using Separate Reverse Channel for User Input in Mobile Device Display Replication 有权
    在移动设备显示复制中使用单独反向通道用于用户输入的方法和装置

    公开(公告)号:US20140201259A1

    公开(公告)日:2014-07-17

    申请号:US13741618

    申请日:2013-01-15

    CPC classification number: H04L67/12 H04L65/608 H04L67/36

    Abstract: A method of controlling media content between a portable device and a head control unit. A first link is initiated for transmitting control signals between a control client and a control server. A second link is initiated for transmitting media content between a data server and a data client. The first link has a lower traffic volume capacity than the second link and a shorter latency for the control signals than for the media content signal over the second link. The control client generates control signals identifying a user's request and transmits the control signals to the control server using the first link. The control server provides instructions to the data server for executing the user request. The retrieved media data is transmitted from the data server to the data client using the second link. The media data is output to the user over the media output device.

    Abstract translation: 一种在便携式设备和头部控制单元之间控制媒体内容的方法。 启动用于在控制客户端和控制服务器之间传输控制信号的第一链接。 发起第二个链接,用于在数据服务器和数据客户端之间传输媒体内容。 第一链路具有比第二链路更低的业务量容量,对于控制信号的延迟比第二链路上的媒体内容信号更短。 控制客户端生成识别用户请求的控制信号,并使用第一链路将控制信号发送到控制服务器。 控制服务器向数据服务器提供执行用户请求的指令。 所检索的媒体数据使用第二链接从数据服务器发送到数据客户端。 媒体数据通过媒体输出设备输出给用户。

    Smart notifications for vehicle parking garage maneuvers

    公开(公告)号:US12277861B2

    公开(公告)日:2025-04-15

    申请号:US18189414

    申请日:2023-03-24

    Abstract: A method can be used to provide smart notifications to avoid collisions while the vehicle maneuvers in a tight structural environment, such as a home garage or an underground parking lot. The method includes receiving historical vehicle-trajectory data. The historical vehicle-trajectory data includes the location and the heading of the vehicle for each of the plurality of historical trajectories along the structure. The method further includes clustering the plurality of historical trajectories of the vehicle along the structure by types of maneuvers to generate a plurality of trajectory clusters. The method also includes creating a probability distribution bitmap using the plurality of trajectory clusters and creating a topographic map based on the probability distribution bitmap.

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