Variable-period automobile CAN communication method and system

The invention provides a variable-period automobile CAN communication method and system, and relates to the technical field of new energy automobile CAN communication, and the system comprises a motor controller MCU, a T-BOX, a gateway, a CAN BUS, and a service platform. The motor controller MCU, the T-BOX and the gateway are communicated through a CAN BUS, and wireless data transmission is carried out between the service platform and the T-BOX through a built-in internet of things card of the T-BOX; and the motor controller MCU executes a whole vehicle working and dormant state instruction according to the whole vehicle key signal, and adjusts the CAN communication period of the motor controller MCU as required, thereby adjusting the data transmission of the function burying point and the scene burying point. According to the invention, the CAN load rate and the data volume of the service platform are reduced. 本公开提供了一种可变周期的汽车CAN通讯方法和系统，涉及新能源汽车CAN通讯技术领域，包括电机控制器MCU，T-BOX、网关、CAN BUS以及服务平台；所述的电机控制器MCU、T-BOX与网关之间