公开(公告)号：US20200207293A1

公开(公告)日：2020-07-02

申请号：US16233281

申请日：2018-12-27

Applicant: GM Global Technology Operations LLC

Inventor： Taeju Park ,  Soheil Samii ,  Prachi Joshi

IPC: B60R16/023 ,  H04L12/727 ,  H04L12/40 ,  H04L12/46 ,  H04L29/08

Abstract: A vehicle and method for intra-vehicle communication within the vehicle involve a sending controller to transmit a message, and a receiving controller to receive the message. The vehicle includes one or more switches to relay the message from the sending controller to the receiving controller. The sending controller and each of the one or more switches include an egress port for transmission of the message. A processor performs bounded timing analysis to determine a total wait time during transmission of the message from the sending controller to the receiving controller as a sum of each egress port wait time at each egress port encountered by the message. Action is taken to avoid or mitigate the total wait time during transmission exceeding a deadline for the message, and the bounded timing analysis includes performing an iterative process and determining a lower bound (LB), an upper bound (UB), and a median value.

公开(公告)号：US20190229866A1

公开(公告)日：2019-07-25

申请号：US15878597

申请日：2018-01-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Prathap Venugopal ,  Unmesh Dutta Bordoloi ,  Soheil Samii ,  Prachi Joshi

IPC: H04L5/00

Abstract: A system and method for transmitting a plurality of signals. The system includes a transmitting terminal configured to obtain and pack the plurality of signals in multiple signal sequences, with each of the plurality of signals having respective predefined periods. A receiving terminal is configured to receive and unpack the multiple signal sequences from the transmitting terminal. A controller is in communication with the transmitting terminal and the receiving terminal and configured to store a look-up table. The look-up table includes a respective pre-identifier and respective identifier for each of the plurality of signals. The controller is configured to determine if the respective predefined periods vary in magnitude within a frame. If so, the controller is configured to obtain the respective pre-identifiers and respective identifiers for each of the plurality of signals. The multiple signal sequences are based at least partially on the respective pre-identifiers and the respective identifiers.