Patent ID: 8269443

Claim:
A rotary electric machine control apparatus comprising: a drive permissive power calculating unit that calculates a rotary electric machine drive permissive power by obtaining a state of a power source of the rotary electric machine; a unit that detects a rotary electric machine rotational speed; a limit torque calculating unit that calculates a limit torque of the rotary electric machine based on the rotary electric machine drive permissive power and the rotary electric machine rotational speed; a filter processing unit that executes a low-pass filter process for the limit torque calculation; and a unit that outputs a torque command based on a limit torque subjected to a filter process and a request torque for the rotary electric machine, the filter processing unit selecting a time constant of the low-pass filter process based on the rotary electric machine drive permissive power and the rotary electric machine rotational speed, and in a vibration generating area having a possibility to generate vibration at the start of the rotary electric machine having the rotary electric machine drive permissive power equal to or less than a preliminarily defined predetermined permissive power value and the rotary electric machine rotational speed equal to or less than a preliminarily defined predetermined rotational speed value, the filter process being executed with a time constant of the low-pass filter set greater than a time constant when the predetermined permissive power value or the predetermined rotational speed value is executed.