公开(公告)号：US20160133131A1

公开(公告)日：2016-05-12

申请号：US14539803

申请日：2014-11-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Donald K. Grimm ,  Youssef A. Ghoneim ,  Fan Bai ,  Jinzhu Chen

IPC: G08G1/0967 ,  B60W40/068

CPC classification number: B60W40/068 ,  B60T8/00 ,  B60T8/172 ,  B60T2210/12 ,  B60T2210/36 ,  G08G1/0112 ,  G08G1/0133 ,  G08G1/0141 ,  G08G1/096716 ,  G08G1/096725 ,  G08G1/096741 ,  G08G1/096775

Abstract: Methods and systems are disclosed for participative sensing of road friction conditions by vehicles, collection of the friction data from a large number of vehicles by a central server, processing the data to classify friction conditions by roadway and locale, and sending notifications of the friction conditions to vehicles as appropriate. A large number of vehicles use participative sensing systems to identify road friction estimates which are reported to the central server—where the vehicles use sensor data and vehicle dynamic conditions to estimate friction. The central server stores and aggregates the friction data, filters it and ages it. Vehicles requesting advisories from the central server will receive notices of road friction conditions which may be significant based on their location and heading. Driver warnings can be issued for low friction conditions ahead, and automated vehicle systems may also respond to the notices.

Abstract translation: 公开的方法和系统用于通过车辆的道路摩擦条件的参与感测，通过中央服务器收集大量车辆的摩擦数据，处理数据以通过道路和区域对摩擦条件进行分类，以及发送摩擦条件的通知 适合车辆。 大量的车辆使用参与式感测系统来识别向中央服务器报告的道路摩擦估计，其中车辆使用传感器数据和车辆动态条件来估计摩擦。 中央服务器存储和聚合摩擦数据，对其进行过滤并对其进行老化。 从中央服务机构请求咨询的车辆将收到道路摩擦条件的通知，这些情况可能因其位置和航向而有重大的影响。 驾驶员警告可以在未来的低摩擦条件下发出，自动化车辆系统也可以响应通知。

公开(公告)号：US20160124976A1

公开(公告)日：2016-05-05

申请号：US14531242

申请日：2014-11-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fan Bai ,  Donald K. Grimm ,  Leonard C. Nieman

IPC: G06F17/30 ,  H04L29/08 ,  H04W4/02

CPC classification number: G06F17/3087 ,  H04L47/28 ,  H04L67/12 ,  H04L67/18 ,  H04W4/02 ,  H04W4/021 ,  H04W4/70 ,  H04W84/18

Abstract: A crowd sensing system includes a central entity and remote entities. The remote entities receive queries from the central entity and transmit data to the central entity in response to the query. The sample data obtained from the queried remote entity is analyzed and an average value for the sample data is determined for a current time interval. The central entity determines whether a difference between the average values for the current time interval and a previous time interval is greater than a predetermined threshold. The central entity increases the number of entities in response to the difference being greater than the predetermined threshold, and decreases the respective number of remote entities sampled in response to the difference being less than the predetermined threshold. The central entity queries a number of remote entities in the plurality of regions equal to the adjusted number of samples identified by the central entity.

Abstract translation: 人群感知系统包括中央实体和远程实体。 远程实体从中央实体接收查询，并响应于查询向数据中心实体发送数据。 从查询的远程实体获得的样本数据被分析，并且针对当前时间间隔确定样本数据的平均值。 中央实体确定当前时间间隔和前一时间间隔的平均值之间的差是否大于预定阈值。 中央实体增加响应于该差异大于预定阈值的实体数量，并且减少响应于该差小于预定阈值而采样的相应数量的远程实体。 中央实体查询多个区域中的多个远程实体，其等于由中央实体识别的经调整的采样数。

公开(公告)号：US20150261754A1

公开(公告)日：2015-09-17

申请号：US14210047

申请日：2014-03-13

Applicant: GM Global Technology Operations LLC

Inventor： Fan Bai ,  Donald K. Grimm ,  Massimo Osella ,  Leonard C. Nieman ,  Robert A. Hrabak

IPC: G06F17/30

CPC classification number: G06F17/30029 ,  G06F17/3053 ,  G06F17/30864 ,  G06F17/3089 ,  G06Q30/0282

Abstract: A method and system for recommending applications to users of in-vehicle infotainment systems are disclosed. Application rating data from many road vehicle infotainment system users are collected on a central server, including both explicit ratings and implicit ratings. Implicit ratings may be calculated based on application usage data. The user/application rating data is filtered for relevance, and then analyzed to determine inferred ratings for user/application relationships where no rating exists. The inferred ratings are calculated using both a user-driven consensus rating calculation and an application-driven consensus rating calculation. The inferred ratings, along with optional cyberspace-based external inputs, are used to synthesize application recommendations for users. The synthesized recommendations for application consideration are provided to the appropriate user via downloading from the central server to the infotainment system in the user's vehicle.

Abstract translation: 公开了一种用于向车载信息娱乐系统的用户推荐应用的方法和系统。 来自许多道路车辆信息娱乐系统用户的应用等级数据被收集在中央服务器上，包括明确的等级和隐含的等级。 可以根据应用使用情况数据计算隐含评级。 过滤用户/应用程序评级数据的相关性，然后进行分析，以确定不存在评级的用户/应用程序关系的推断评级。 推断的评级是使用用户驱动的一致评级计算和应用程序驱动的一致评级计算来计算的。 推断的评级以及可选的基于网络空间的外部输入被用于综合用户的应用建议。 通过从中央服务器下载到用户车辆中的信息娱乐系统，将合适的应用考虑建议提供给适当的用户。

公开(公告)号：US20150208457A1

公开(公告)日：2015-07-23

申请号：US14157897

申请日：2014-01-17

Applicant: GM Global Technology Operations LLC ,  General Motors LLC

Inventor： Lakshmi Thanayankizil ,  Fan Bai ,  David P. Pop

IPC: H04W76/02

CPC classification number: H04W76/15

Abstract: A method of managing short-range wireless links between a primary wireless device and a plurality of secondary wireless devices includes initiating a short-range wireless link between the primary wireless device and a secondary wireless device configured to communicate using a traditional Wi-Fi protocol; providing the short-range wireless link between the primary wireless device and the secondary wireless device using a Wi-Fi direct protocol, wherein the primary wireless device acts as a group owner and the secondary wireless device acts as a group member; detecting the presence of an additional secondary wireless device, acting as a server, using the primary wireless device; ending use of the Wi-Fi direct protocol over the short-range wireless link between the primary wireless device and the secondary wireless device; beginning use of the traditional Wi-Fi protocol over the short-range wireless link between the primary wireless device and the secondary wireless device; and providing another short-range wireless link between the primary wireless device and the additional secondary wireless device using the Wi-Fi direct protocol, wherein the primary wireless device acts as a group member to the additional secondary wireless device.

Abstract translation: 一种管理主要无线设备与多个辅助无线设备之间的短距离无线链路的方法包括：在主要无线设备与被配置为使用传统Wi-Fi协议通信的辅助无线设备之间发起短距离无线链路; 使用Wi-Fi直接协议在主无线设备和辅助无线设备之间提供短距离无线链路，其中所述主无线设备充当组所有者，并且所述辅助无线设备充当组成员; 使用主无线设备检测作为服务器的附加次要无线设备的存在; 结束在主无线设备和辅助无线设备之间的短距离无线链路上使用Wi-Fi直接协议; 在主无线设备和辅助无线设备之间的短距离无线链路上开始使用传统的Wi-Fi协议; 以及使用所述Wi-Fi直接协议在所述主无线设备和所述另外的辅助无线设备之间提供另一短距离无线链路，其中所述主无线设备充当所述另外的辅助无线设备的组成员。

公开(公告)号：US20250155541A1

公开(公告)日：2025-05-15

申请号：US18508579

申请日：2023-11-14

Applicant: GM Global Technology Operations LLC

Inventor： Zijun Han ,  Jinzhu Chen ,  Aaron Adler ,  Fan Bai ,  John Sergakis

IPC: G01S5/02 ,  G01S5/14

Abstract: A method for in-vehicle localization of a mobile device includes receiving, in real time, sensor data from a plurality of UWB sensors inside a vehicle. The plurality of UWB sensors includes a plurality of UWB anchors and a UWB tag, which is part of the mobile device. The method further includes determining a plurality of location candidates of the UWB tag based on the sensor data received, determining a plurality of sensed current locations of the UWB tag and a plurality of probabilities for each of the plurality of sensed current locations of the UWB tag using a Gaussian Kernel Density Estimation (KDE), tracking a motion of the UWB tag, and determining a real-time position of the UWB tag using a Bayesian estimation.

公开(公告)号：US12294970B2

公开(公告)日：2025-05-06

申请号：US18049902

申请日：2022-10-26

Applicant: GM Global Technology Operations LLC

Inventor： Jinzhu Chen ,  Zijun Han ,  Fan Bai ,  Aaron Adler ,  John Sergakis

IPC: H04W64/00 ,  H04B1/69

Abstract: Systems and methods for diagnosing sensor performance of a UWB sensor localization are provided. The system comprises a UWB tag, at least four UWB anchors, and a gateway. The gateway comprises an ECU arranged to receive sensor signals from the UWB anchors. The ECU comprises a preprocessing module arranged to align the sensor signals defining aligned data and is arranged to determine intersections of the aligned data defining points of intersections. The system further comprises a clustering module arranged to cluster the points of intersections defining at least one cluster of points of the UWB anchors to calculate a clustering quality and a clustering variance of each of the at least one cluster. The ECU is arranged to find a clustering contribution of each anchor defining a first contribution low of one of the anchors and is arranged to determine an erratic anchor based the first contribution low.

公开(公告)号：US12222217B2

公开(公告)日：2025-02-11

申请号：US17930503

申请日：2022-09-08

Applicant: GM Global Technology Operations LLC

Inventor： Bo Yu ,  Fan Bai ,  Gui Chen ,  Joon Hwang ,  Carl P. Darukhanavala ,  Vivek Vijaya Kumar ,  Shu Chen ,  Donald K. Grimm

IPC: G01C21/30 ,  G01C21/00

Abstract: A method of creating a high-definition (HD) map of a roadway includes receiving a multi-layer probability density bitmap. The multi-layer probability density bitmap represents a plurality of lane lines of the roadway sensed by a plurality of sensors of a plurality of vehicles. The multi-layer probability density bitmap includes a plurality of points. The method further includes recursively conducting a hill climbing search using the multi-layer probability density bitmap to create a plurality of lines. In addition, the method includes creating the HD map of the roadway using the plurality of lines determined by the hill climbing search.

公开(公告)号：US20240385010A1

公开(公告)日：2024-11-21

申请号：US18318247

申请日：2023-05-16

Applicant: GM Global Technology Operations LLC

Inventor： Gui Chen ,  Bo Yu ,  Shuqing Zeng ,  Fan Bai ,  Joon Hwang ,  Vivek Vijaya Kumar ,  Mason David Gemar ,  Carl P. Darukhanavala

IPC: G01C21/00

Abstract: A system for fusing two or more versions of map data together includes one or more central computers that receive road network data representing a road network for a predefined geofenced area. The central computers compute a plurality of points that are each positioned at a predetermined distance from one another. The central computers create a plurality of bounding boxes for the road network based on the plurality of points and create a set of closest matched map data points for each bounding box that is part of the road network by executing a map-matching registration algorithm to align the two or more versions of map data with one another. The central computers execute a maximum likelihood estimation algorithm to determine probability distribution parameters of the set of closest matched map data points compared to the ground truth map data.

公开(公告)号：US12128889B2

公开(公告)日：2024-10-29

申请号：US17565959

申请日：2021-12-30

Applicant: GM Global Technology Operations LLC

Inventor： Sandeep Vig ,  Bo Yu ,  Ashok Yendluri ,  Vivek Vijaya Kumar ,  Hariharan Krishnan ,  Fan Bai

IPC: B60W30/095 ,  H04W4/44

CPC classification number: B60W30/0956 ,  B60W30/0953 ,  H04W4/44 ,  B60W2420/403 ,  B60W2552/53

Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive safety messages from a plurality of vehicles in communication with the edge server, determine an uplink frequency recommendation for transmitting safety messages from at least one vehicle of the plurality of vehicles based on at least one of a position error or a collision risk, determine a downlink frequency recommendation for transmitting safety messaging to at least one vehicle of the plurality of vehicles based on at least one of a position error or a collision risk, and transmit the frequency recommendations to the at least one vehicle.

公开(公告)号：US20240314853A1

公开(公告)日：2024-09-19

申请号：US18184765

申请日：2023-03-16

Applicant: GM Global Technology Operations LLC

Inventor： Hariharan Krishnan ,  Lakshmi V. Thanayankizil ,  Mohammad Ishfaq ,  David M. George ,  Fan Bai

IPC: H04W76/10 ,  H04W8/20

CPC classification number: H04W76/10 ,  H04W8/20

Abstract: A system for configuring and providing cellular connectivity for a vehicle includes a vehicle communication system and a vehicle controller in electrical communication with the vehicle communication system. The vehicle controller is programmed to establish a connection between the vehicle communication system and a mobile device. The vehicle controller is further programmed to retrieve a cellular connectivity configuration profile from at least one remote server using an internet connection of the mobile device. The vehicle controller is further programmed to configure the vehicle communication system to connect to a cellular network using the cellular connectivity configuration profile.