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公开(公告)号：US20240273741A1
公开(公告)日：2024-08-15
申请号：US18169081
申请日：2023-02-14
Applicant: GM Global Technology Operations LLC
CPC classification number: G06T7/337 , G06T3/12 , G06T3/60 , G06T2207/30244 , G06T2207/30252
Abstract: A vehicle includes a system that performs a method for aligning a first camera and a second camera to a reference frame of the vehicle. The first camera has a first coordinate system, and the second camera has a second coordinate system. The first camera obtains a first image. The processor is configured to obtain a first camera-to-ground transformation matrix for the first camera using the first image, wherein the first camera-to-ground transformation matrix relates the first coordinate system to a ground coordinate system, obtain a camera-to-camera transformation matrix between the first coordinate system of the first camera and the second coordinate system of the second camera, calculate a constructed camera-to-ground transformation matrix for the second camera using the first camera-to-ground transformation matrix and the camera-to-camera transformation matrix, and update the second coordinate system of the second camera using the constructed camera-to-ground transformation.
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公开(公告)号：US12043269B2
公开(公告)日：2024-07-23
申请号：US17651406
申请日：2022-02-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Binbin Li , Xinyu Du , Yao Hu , Hao Yu , Wende Zhang
CPC classification number: B60W40/10 , G06V20/58 , B60W2420/403 , B60W2552/53
Abstract: Systems and methods for a vehicle are provided. In one embodiment, a method includes: receiving image data defining a plurality of images associated with an environment of the vehicle; receiving vehicle data indicating a velocity of the vehicle, wherein the vehicle data is associated with the image data; determining, by a processor, feature points within at least one image based on the vehicle data and a three dimensional projection method; selecting, by the processor, a subset of the feature points as ground points; determining, by the processor, a ground plane based on the subset of feature points; determining, by the processor, a ground normal vector from the ground plane; determining, by the processor, a camera to ground alignment value based on the ground normal vector; and generating, by the processor, second image data based on the camera to ground alignment value.
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公开(公告)号：US20240142590A1
公开(公告)日：2024-05-02
申请号：US17974985
申请日：2022-10-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
CPC classification number: G01S7/4972 , G01S7/40
Abstract: A computer-implemented method for aligning a sensor to a vehicle includes receiving a first frame of measurement from the sensor which includes a first point cloud. One or more clusters Ci representing one or more objects or the ground are segmented. A first set of feature vectors fi is computed for each cluster Ci. Based on the first set of feature vectors fi a second set of feature vectors fi′ is predicted respectively using an initial transformation. A third set of feature vectors fj is computed for a second frame with a second point cloud with clusters Cj. A pair of matching clusters is identified from Ci and Cj. A feature distance between the matching clusters is computed. An alignment transformation is computed by updating the initial transformation based on the feature distance. The method further includes aligning the sensor and the vehicle based on the alignment transformation.
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公开(公告)号：US20240092220A1
公开(公告)日：2024-03-21
申请号：US17945210
申请日：2022-09-15
Applicant: GM Global Technology Operations LLC
Inventor： Suresh Gopalakrishnan , Xinyu Du , Chandra S. Namuduri , Lyall Kenneth Winger , Gary W. Gantt, JR. , Anwar Hossain , Kurt R. Garcia
Abstract: An example method includes receiving a wakeup request from a device from a vehicle. The wakeup request indicates that the device desires to perform a task that consumes electrical power from a battery of the vehicle. The method further includes assigning a priority to the wakeup request. The method further includes queuing the wakeup request according to a wakeup schedule. The method further includes, responsive to a current time satisfying the wakeup schedule, performing the task based at least in part on the priority.
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公开(公告)号：US20240051421A1
公开(公告)日：2024-02-15
申请号：US17884145
申请日：2022-08-09
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Infane Lowe , Chandra S. Namuduri , Lyall Kenneth Winger , Jonathan O. Conell
Abstract: A method is provided that includes determining whether to perform a load shed operation for a vehicle. The method further includes responsive to determining to perform the load shed operation, issuing a command to a device to perform the load shed operation. The method further includes determining whether the device performed the load shed operation. The method further includes responsive to determining that the device failed to perform the load shed operation, opening a relay associated with the device to prevent power from being delivered to the device.
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Patent Agency Ranking
公开(公告)号：US20230147739A1
公开(公告)日：2023-05-11
申请号：US17523222
申请日：2021-11-10
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Yao Hu , Wende Zhang , Hao Yu
IPC: G01S7/497 , G01S17/931 , H04W4/44
CPC classification number: G01S7/4972 , G01S17/931 , H04W4/44
Abstract: A system in a vehicle includes a lidar system to obtain lidar data in a lidar coordinate system, and processing circuitry to obtain the lidar data and localization data. The localization data indicates a location and orientation of the vehicle. The processing circuitry automatically determines an alignment state resulting in a lidar-to-vehicle transformation matrix that projects the lidar data from the lidar coordinate system to a vehicle coordinate system to provide lidar-to-vehicle data. The alignment state is determined using the localization data.
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公开(公告)号：US20230135965A1
公开(公告)日：2023-05-04
申请号：US17516318
申请日：2021-11-01
Applicant: GM Global Technology Operations LLC
Inventor： Yao Hu , Xinyu Du , Wende Zhang , Hao Yu
Abstract: A system in a vehicle includes a lidar system to transmit incident light and receive reflections from one or more objects as a point cloud of points. The system also includes processing circuitry to identify planar points and to identify edge points of the point cloud. Each set of planar points forms a linear pattern and each edge point is between two sets of planar points, and the processing circuitry identifies each point of the points of the point cloud as being within a virtual beam among a set of virtual beams. Each virtual beam of the set of virtual beams representing a horizontal band of the point cloud.
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公开(公告)号：US11305602B2
公开(公告)日：2022-04-19
申请号：US16673343
申请日：2019-11-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xinyu Du , Lichao Mai , Brian K. Saylor , Arvind Sharma , Kevin A. Cansiani
IPC: B60G17/0185 , B60G17/017
Abstract: A system for testing a suspension system of a vehicle includes an inertial measurement module and a suspension fault detection module. The inertial measurement module is configured to, while the vehicle is not moving, collect sensor data from one or more inertial measurement sensors for different states of the suspension system. The sensor data is indicative of inertial states of the vehicle while the suspension system is in each of the different states. The suspension fault detection module is configured to, based on the sensor data and a set of thresholds, determine whether a fault exists with the suspension system, isolate and identify the fault, and perform a countermeasure based on the detection of the fault.
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公开(公告)号：US20200158772A1
公开(公告)日：2020-05-21
申请号：US16196023
申请日：2018-11-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xinyu Du , Wen-Chiao Lin , Yilu Zhang
IPC: G01R31/00 , G01R31/04 , B60L3/00 , G01R31/3842
Abstract: A vehicle electronics high-resistance fault diagnosis system is provided, as well as a method of detecting and isolating a high-resistance fault in vehicle electronics of a vehicle. The method includes the steps of determining electrical data for one or more portions of the vehicle electronics, wherein the electrical data includes voltage data and/or current data concerning the one or more portions of the vehicle electronics; calculating a resistance for a plurality of resistance sets of the vehicle electronics based on the electrical data, wherein each of the plurality of resistance sets includes one or more electrical components; obtaining a resistance set threshold for each of the plurality of resistance sets of the vehicle electronics; for each of the plurality of resistance sets, evaluating whether the resistance of the resistance set exceeds the resistance set threshold; and based on the evaluating step, identifying one or more high-resistance fault candidates.
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公开(公告)号：US10600257B2
公开(公告)日：2020-03-24
申请号：US15688467
申请日：2017-08-28
Applicant: GM Global Technology Operations LLC
Inventor： Shengbing Jiang , Mutasim A. Salman , Xinyu Du , Wen-Chiao Lin , Jinsong Wang , Shuqing Zeng
Abstract: An autonomic vehicle control system is described, and includes a vehicle spatial monitoring system including a subject spatial sensor that is disposed to monitor a spatial environment proximal to the autonomous vehicle. A controller is in communication with the subject spatial sensor, and the controller includes a processor and a memory device including an instruction set. The instruction set is executable to evaluate the subject spatial sensor, which includes determining first, second, third, fourth and fifth SOH (state of health) parameters associated with the subject spatial sensor, and determining an integrated SOH parameter for the subject spatial sensor based thereupon.
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