| 摘要 |
<P>PROBLEM TO BE SOLVED: To correct an angle more accurately than before even when the variation of a rotation number such as acceleration and deceleration occurs within a prescribed period. <P>SOLUTION: An inverter controller 60 includes: error correction means 67 for correcting an error between an ideal angle and a rotation angle on the basis of signal information related to the rotation angle of a rotary electric machine 40 outputted by a resolver 41 (first angle detector); reference angle detection means 66 for detecting a reference angle θs on the basis of the signal information outputted by the resolver 41; and reference cycle determination means 68 for determining a reference cycle Ts to be the reference of correcting the error with a detection angle θd on the basis of the reference angle θs detected by the reference angle detection means 66. The error correction means 67 estimates the ideal angle on the basis of the reference cycle Ts determined by the reference cycle determination means 68, and corrects the error between the estimated ideal angle and the detection angle θd detected on the basis of the signal information outputted by the resolver 41. <P>COPYRIGHT: (C)2012,JPO&INPIT |
