The present invention relates to embedded frequency varying control apparatus based on DSP for electromobile and its control method. The present invention has battery to provide the system with electric energy via a switching power module, a triphase voltage type frequency converter to constitute a DC/AC converter circuit, a gate signal isolating driver circuit to generate frequency variable AC voltage driving a triphase squirrel cage motor; a signal A/D detection interface circuit module including the feedback inputs of triphase current signal, DC voltage signal, frequency converter temperature signal, pedal accelerator signal, etc.; the DSP to read and judge the I/O signal from the driver controller for corresponding treatment and operation and to read the feedback signal for vector control or direct torsion control; and a communication module for real-time control via serial port or CAN bus. The present invention has the features of small size, light weight, simple and compact structure, high efficiency, etc. |