公开(公告)号：US20230236822A1

公开(公告)日：2023-07-27

申请号：US18190449

申请日：2023-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiong LIU ,  Zhen LI ,  Tao MA ,  Hongxing SUN

IPC: G06F8/65 ,  B60R16/023

CPC classification number: G06F8/65 ,  B60R16/0231

Abstract: Embodiments of this application disclose a data transmission system, including an over the air OTA server, a master electronic control unit ECU, and a node ECU. The master ECU is configured to obtain a size of a target software package from the OTA server. The master ECU is further configured to transmit to a node ECU, the size of the target software package, or obtain a size of a remaining storage space of the node ECU from the node ECU.