公开(公告)号：US10153982B2

公开(公告)日：2018-12-11

申请号：US15242945

申请日：2016-08-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sandhya Lingadahalli ,  Srinath Srinivasamurthy ,  Sudhakaran Maydiga ,  Anand Harogoppad

IPC: H04L12/40 ,  H04L12/805 ,  H04L12/24 ,  H04L12/841 ,  H04L29/06 ,  H04L29/08

Abstract: A method and apparatus for generating frames for communicating over a network are provided. The method includes: receiving input signals and signal information comprising at least one from among new signal information, existing data dictionary information, and topology information, determining frame packing rules based on the received signal information, and generating frames of output data based on the determined frame packing rules. The method may be used to package vehicle controller area network messages for transmission over other networks.

公开(公告)号：US12200056B2

公开(公告)日：2025-01-14

申请号：US17533955

申请日：2021-11-23

Applicant: GM Global Technology Operations LLC

Inventor： Sudhakaran Maydiga ,  Steve DiBella ,  Katrina M. Schultz ,  Grant Ayodele Ebun Soremekun

IPC: H04L43/16 ,  H04L67/12

Abstract: A computer is provided for a network communication system of a motor vehicle. The system includes a central gateway and a plurality of electronic control units (ECUs) coupled to the central gateway. The computer includes one or more processors and a computer readable medium (CRM) coupled to the processors. The processor is programmed to receive an input database including a plurality of messages with a plurality of unique periodic rates. The processor is further programmed to assign a plurality of delayed start times for associated messages, with a number of the messages transmitted at each of the delayed starting times being limited to a predetermined maximum threshold. The processor is further programmed to generate an output database including the delayed start times, such that the ECUs are coded based on the output database to transmit the messages at the associated delayed start times to decrease a congestion of the system.

公开(公告)号：US20250007748A1

公开(公告)日：2025-01-02

申请号：US18344177

申请日：2023-06-29

Applicant: GM Global Technology Operations LLC

Inventor： Michael Potts ,  Sudhakaran Maydiga

IPC: H04L12/40

Abstract: A bus-based communication includes a primary node, one or more secondary nodes that are each assigned an original node identifier, and a bus electrically connecting the primary node and the one or more secondary nodes with one another based on a bus-based communication protocol. The bus-based communication protocol defines a predefined number of sequentially numbered available node identifiers, and the original node identifier assigned to each secondary node corresponds to one of the sequentially numbered available node identifiers defined by the bus-based communication protocol of the bus. The primary node implements a re-mapping technique that re-numbers the original node identifiers assigned to the secondary nodes.

公开(公告)号：US12177037B2

公开(公告)日：2024-12-24

申请号：US18166085

申请日：2023-02-08

Applicant: GM Global Technology Operations LLC

Inventor： Sudhakaran Maydiga ,  Steve DiBella ,  John Patrick Saavedra Gonzaga ,  Subhash Vijaya Doddachikkaveeranna

IPC: H04L12/40

Abstract: A vehicle control system includes a transmitting electronic control unit for transmitting multiplexed protocol data units. The transmitting electronic control unit is enabled to transmit first and second protocol data units with corresponding first and second selector field values. A receiving electronic control unit is in electronic communication with the transmitting electronic control unit. The receiving electronic control unit is enabled to be programmed to operate in a first mode of operation or in a second mode of operation. The receiving electronic control unit is enabled to receive and process the first protocol data unit based on receipt of the first selector field value when operating in the first mode of operation and is enabled to receive and process the second protocol data unit based on receipt of the second selector field value when operating in the second mode of operation.

公开(公告)号：US12038783B1

公开(公告)日：2024-07-16

申请号：US18166092

申请日：2023-02-08

Applicant: GM Global Technology Operations LLC

Inventor： Sudhakaran Maydiga ,  Steve DiBella ,  Subhash Vijaya Doddachikkaveeranna

IPC: G06F1/14 ,  G06F1/12

CPC classification number: G06F1/12 ,  G06F1/14

Abstract: A system for synchronization of multiple clocks in a vehicle network includes a processor that is programmed to synchronize a time follower clock to a primary grand leader clock. The primary grand leader clock is monitored and the time follower clock is synchronized to a standby grand leader clock upon a failure of the primary grand leader clock. The time follower clock is synchronized to the primary grand leader clock if a new ignition cycle has occurred between a failure of the primary grand leader clock and a recovery after failure of the primary grand leader clock. The time follower clock continues to be synchronized to the standby grand leader clock if a new ignition cycle has not occurred between the failure of the primary grand leader clock and the recovery after failure of the primary grand leader clock.

公开(公告)号：US20200377012A1

公开(公告)日：2020-12-03

申请号：US16425871

申请日：2019-05-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Miguel A. Saez ,  Marcus J. Huber ,  Qinglin Zhang ,  Lei Wang ,  Sudhakaran Maydiga

IPC: B60Q1/52 ,  B60Q5/00 ,  G06K9/00 ,  B60W30/095

Abstract: A method for improving pedestrian safety is provided. The method includes determining operating conditions of a vehicle using a plurality of vehicle sensors. A path of the vehicle is predicted based on the determined operating conditions. Pedestrian parameters for a pedestrian in a vicinity of the vehicle are acquired using the plurality of vehicle sensors. The pedestrian parameters include at least one of a position, a speed of the pedestrian, gait, body posture and a level of distractedness. A determination is made whether a notification of the pedestrian is necessary based on the determined vehicle operating conditions and the acquired pedestrian parameters. A mode of notification of the pedestrian is selected from a plurality of modes of notification, in response to determining that the notification of the pedestrian is necessary. The pedestrian is notified using the selected mode of notification.