| 摘要 |
PROBLEM TO BE SOLVED: To provide a position detector accuracy correction method that is resilient against a secular change and simply corrects an interpolation error.SOLUTION: A method includes: calculating an average speed S from an expression S=p/T, where T is defined as time for moving from n-th milestone to n+1-th milestone; calculating an interpolation error E[i] from E[i]=G[i]-i*S*&Dgr;t-G[0]; assuming that a current relative position of a secondary-side member is a detection position Gand calculating an interpolation error E[I] at i=I that minimizes |G-G[i]|, where n-a≤m≤n+a (where "a" is a pre-specified integer); and calculating a detection position X' from an expression X'=p*m+G-E[I]. This makes it possible to provide a position detector accuracy that is resilient against a secular change and simply corrects an interpolation error. |
