A multi-type output vehicle circuit system based on CANFD communication control

Abstract

To address the complex control requirements and system flexibility challenges faced by intelligent vehicles and autonomous driving technology, especially with the significant increase in in-vehicle communication demands, traditional automotive networks such as CAN or LIN have gradually exposed issues with insufficient information exchange speed. This research introduces the more advanced CANFD technology, utilizing a circuit control system based on the STM32 microcontroller with CANFD communication support. By integrating high-performance digital-to-analog converters, the system can generate precise level signals within milliseconds, enabling the control of various analog input devices. Additionally, by using pulse-width modulation (PWM) functionality, efficient control is achieved, improving the system's response speed and flexibility. Meanwhile, a low-frequency wireless communication conversion module connected via serial port enables remote monitoring of key vehicle parameters. This allows for real-time monitoring and fault diagnosis of vehicle operation, providing a reliable solution for the development of intelligent vehicles and autonomous driving technology.