| 摘要 |
<p>The present invention relates to a motor-inverter driving system comprising; a failure detection function processing unit which detects a disconnection failure of a three-phase cable connecting between a motor and an inverter by using a three-phase current value; an inverter operating state determination unit which determines the activation of a function for detecting the disconnection failure of the three-phase cable performed by the failure detection function processing unit by using failure state information of a current sensor and an operating state of the current controller and PWM module to drive a motor; and an exception condition determination unit which determines the maintenance of an operation of the function of the disconnection failure of the three-phase cable activated by the inverter operating a state determination unit by using command information of phase current and speed information of the motor. Therefore, the present invention can secure function safety corresponding to ISO26262 (vehicle function safety standard) by diagnosing the state of a present system accurately.</p> |
