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The company focuses on the research and manufacturing of products in the fields of electrical automation, intelligence, and unmanned systems.

Basic functions of motor controller

Release time:

2022-11-08

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The motor controller is a control unit that controls the motor to drive the entire vehicle, and is a core component of electric vehicles. The motor controller has functions such as CAN communication, overcurrent protection, overload protection, undervoltage protection, overvoltage protection, phase loss protection, energy feedback, power limit, high-voltage interlock, and fault reporting. The motor controller technology is currently relatively mature, with characteristics such as high integration, high power density, long lifespan, and stable output.
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.

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