The electric vehicle controller is composed of various electronic components, including the main control chip, power transistor, sampling resistor, etc., which together form a complex control system. The main control chip is responsible for receiving and processing various input signals, the power transistor controls the current magnitude and direction of the motor, and the capacitor and resistor respectively play the roles of filtering, stabilizing, and adjusting the circuit. In addition, the controller also includes components such as heat sinks and connectors, ensuring that the controller operates within the normal operating temperature range and ensuring the reliability of circuit connections.