Rotary electric machine control apparatus

摘要

A control unit of a rotary electric machine control apparatus includes a rotation position calculation section, which calculates a sensor angle by correcting a detection signal of a rotation position sensor based on correction value information specific to each sensor, and a correction value abnormality check section, which checks whether the correction value information is normal. When the correction value information is abnormal, the rotation angle calculation section corrects the detection signal of the rotation position sensor by using default value information in place of the correction value information. Each default value is limited to be different from the correction value within a predetermined range. A current command value calculation section sets a d-axis current command value to zero and fixes a current command phase to 90[°]. The current command phase is changed to be most remote from 0[°] and 180[°] thereby ensuring a tolerable range.

主权项

1. A control apparatus for a rotary electric machine to which a rotation position sensor is assembled for detecting a rotation position of the rotary electric machine, the control apparatus comprising:
a power converter for converting input power and supplying converted power to the rotary electric machine; and a control unit for controlling power supply to the rotary electric machine, wherein the control unit includes a storage section for storing correction value information and default value information, the correction value information being specific to individual assembly according to an initial error caused in assembling the rotation position sensor with the rotary electric machine, and default value information being limited so that a difference from the correction value information is within a predetermined range, a rotation position calculation section for correcting a detection signal of the rotation position sensor by using the correction value information or the default value information stored in the storage section, a correction value abnormality check section for checking whether the correction value information is normal, and a current command value calculation section for calculating a current command value of a magnetic field component current and a torque component current of the rotary electric machine, wherein, when the correction value information is normal, the rotation position calculation section corrects the detection signal of the rotation position sensor based on the correction value information, wherein, when the correction value information is abnormal, the rotation position calculation section corrects the detection signal of the rotation position sensor based on the default value information, and the current command value calculation section calculates the current command value so that the magnetic field component current supplied to the rotary electric machine is closer to zero than when the correction value information is normal.