Fault Diagnosis and Treatment Continuously monitor the electronic control system of the vehicle for fault diagnosis. The fault indicator light indicates the fault category and some fault codes. According to the content of the fault, carry out corresponding safety protection treatment in time. For less serious failures, it can be driven at a low speed to a nearby maintenance station for maintenance.
The external charging management realizes the connection of charging, monitors the charging process, reports the charging status, and finishes charging.
The online diagnosis and offline detection of diagnostic equipment are responsible for the connection and diagnostic communication with external diagnostic equipment to realize UDS diagnostic services, including reading data streams, reading and clearing fault codes, and debugging control ports.
The figure below is an example of a pure electric vehicle vehicle controller. It judges the driver’s intention by collecting control signals during driving and charging, manages and dispatches the vehicle’s electronic control equipment through the CAN bus, and adopts different models for different models. Control strategy to realize vehicle drive control, energy optimization control, braking energy recovery control and network management. The vehicle controller uses microcomputer, intelligent power drive, CAN bus and other technologies, and has the characteristics of good dynamic response, high sampling accuracy, strong anti-interference ability, and good reliability.