DC brushless motor controller for electric vehicle

摘要

The converter (67) converts d shaft voltage command value and q shaft voltage command value to voltage command value of each phase based on detected position of magnetic pole. The generator (68) generates pulse width modulation signal of each phase of the motor based on the voltage command value of each phase. The current sensor detects current of each phase of motor. The magnetic pole position detector detects position of magnetic pole. The converter (61) converts detected current of each phase of motor to `d' shaft current and `q' shaft current based on detected position of magnetic pole. The voltage command value calculators (64,65) calculates d shaft voltage command value and q shaft voltage command value based on converted d shaft current deviation and q shaft current deviation respectively. Inductance adjustment unit adjust the d shaft inductance and q shaft inductance so that d shaft current deviation and q shaft current deviation are set to zero An Independent claim is also included for describing motor control method.