The motor controller is equipped with IGBT junction temperature estimation, variable carrier frequency, and overmodulation technology, resulting in high system efficiency, strong power, and high reliability. It also has CAN wake-up and sleep functions, reducing the static power consumption of the motor controller and avoiding battery feeding. The motor controller has a brake feedback function. When the vehicle brakes, the motor controller stores electrical energy in the power battery through brake feedback, thereby increasing the driving range. The slope release function is designed to prevent the vehicle from rolling backwards during the process of switching from the brake pedal to the accelerator pedal when starting on a slope. When the vehicle is found to be rolling backwards, the motor controller enters the anti slip slope rotation state, and the controller automatically adjusts the torque output to prevent the vehicle from rolling backwards due to gravity.
The motor controller also has a cruise control function. Without stepping on the accelerator pedal, the motor controller can output torque to automatically maintain the vehicle at a fixed speed according to the VCU set speed, saving the driver’s energy and improving the driving experience. Idle function, realizing the creeping function of the car, outputting torque reasonably according to the motor speed, so as to maintain the motor speed in a small speed range. Anti shake function can be added to the entire vehicle according to customer needs to ensure comfort. Active discharge function: After the vehicle stops running and the battery and motor controller are disconnected, the motor controller should have the function of releasing the charge on the bus capacitor, and the solid wood line voltage should be reduced to the safe voltage for human body. The UDS protocol is mainly used for the production, manufacturing, and after-sales maintenance of complete vehicles. Based on the UDS protocol, diagnostic instruments can accurately determine the cause of faults and improve maintenance efficiency.
