CAN Communication

Many engineers encounter this kind of problem: the charging function fails after the vehicle is powered on, the CAN communication fault of the charging system is diagnosed, and the fault code is repeatedly cleared, but it still fails to charge normally. Many people directly judge that the charger is damaged and replaced blindly, resulting in unnecessary waste. Combining with the fault tree, we can...

In the world of automotive electronics and industrial control, CAN bus is like an invisible neural network, which connects various control units (ECU) closely. The DBC file is the "language dictionary" of the network-it records what and how each node says, and understanding the DBC file is a necessary skill.   What is a DBC file DBC (Database CAN) is a CAN network data file, which...

Obviously, the vehicle has been connected to the charging gun, but the dashboard does not show the "charging" prompt, and the charging pile screen jumps out of a line of cold "communication failure" code. At that moment, a sense of anxiety came to my mind. Was the charging pile broken? Or was there something wrong with the car? After the maintenance engineer came to the door and tested it repea...

Have you ever had the experience of confidently taking out a multimeter to verify whether the CAN bus is normal at the vehicle commissioning site, but the number popping up on the screen makes you confused-not the familiar 60Ω, but 140Ω, 180Ω, or even higher! You begin to suspect that the instrument is broken or that there is a problem with the wiring, but after repeated measurements, it is still ...