What is the meaning of CAN bus in automobiles?

[GabrielFitz]

CAN bus refers to twisted pair wires, which are twisted together to prevent external interference. The CAN bus is used for communication between various functional computers in a vehicle. If the car reports a fault related to CAN communication, it can be directly tested. Below is relevant information: 1. CAN-BUS, or CAN bus technology, stands for Controller Area Network bus technology. CAN-Bus technology was first used in communication systems for aircraft and other weapon electronic systems. The application of this technology in civilian vehicles originated in Europe, where this bus network is used to transmit data from various sensors in the car. 2. Nowadays, vehicles have an increasing number of electronic control systems, such as electronic fuel injection devices, ABS devices, airbag systems, power windows, active suspensions, etc. At the same time, various sensors distributed throughout the vehicle body monitor the vehicle's status information in real-time and send this information to the corresponding control units. Communication between multiple control units is achieved by connecting each control unit to these two CAN buses, thereby enabling information sharing among multiple control units.