| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a resolver output correction device capable of easily correcting positional information. <P>SOLUTION: A memory 42 stores a map showing a relation between a correction amount ΔΘ and a detected resolver angle Θ<SB POS="POST">d</SB>when an amplitude peak value ratio K2/K1 between an amplitude peak value K2 of a sin signal E<SB POS="POST">S2-S4</SB>and an amplitude peak value K1 of a cos signal E<SB POS="POST">S1-S3</SB>is an arbitrary value. A CPU 41 derives ΔΘ from the map on the basis of values of the detected resolver angle Θ<SB POS="POST">d</SB>, the amplitude peak value K1 of the cos signal E<SB POS="POST">S1-S3</SB>and the amplitude peak value K2 of the sin signal E<SB POS="POST">S2-S4</SB>, and outputs the detected resolver angle Θ<SB POS="POST">d</SB>after adding the correction amount ΔΘ. Therefore, it is possible to derive an appropriate correction amount ΔΘ from the map even if a difference in the amplitude occurs between the sin signal E<SB POS="POST">S2-S4</SB>and the cos signal E<SB POS="POST">S1-S3</SB>. <P>COPYRIGHT: (C)2013,JPO&INPIT |
