Apparatus and method for compensating a position information error of a resolver

A method for compensating for a position information error of a resolver comprising steps of:

• generating a corresponding output angle by estimating resolver position information from a resolver output signal;
• determining a position error component in a corresponding electric angular velocity of the resolver output signal using the resolver output signal and the output angle;
• converting the position error component to a position error component in an electric angular velocity 0;
• and
• compensating for an error by reflecting the position error component in the electric angular velocity 0 in the error between a position angle of the resolver output signal and the output angle.

A non-transitory computer readable medium containing program instructions for compensating for a position information error of a resolver, the computer readable medium comprising:

• program instructions that generate a corresponding output angle by estimating resolver position information from a resolver output signal;
• program instructions that determine a position error component in a corresponding electric angular velocity of the resolver output signal using the resolver output signal and the output angle;
• program instructions that convert the position error component to a position error component in an electric angular velocity 0;
• and
• program instructions that compensate for an error by reflecting the position error component in the electric angular velocity 0 in the error between a position angle of the resolver output signal and the output angle.