Device and method for determining the rotary orientation of a motor through use of a resolver signal derived from the rotary orientation

A device for determining a rotary orientation of a motor, comprising:

• a resolver facility with a resolver signal output for outputting a signal derived from the rotary orientation:
• a feeding connection to feed the resolver signal to a single control system, the control system having a trigger output to trigger and an evaluating input to receive an evaluation signal for evaluating the resolver signal;
• a microcontroller or digital signal processor receiving at least two output signals from the resolver facility in parallel and having a single output to present the trigger signal to the resolver;
• and
• an evaluating unit to evaluate the resolver output signals through executing a tracking procedure, wherein
• the tracking procedure is based on:
• F(s)=Φ(s)/φ(s)=K1*(1+K2*s)/(s2+K1*K2*s+K1),
• wherein Φ is the estimated rotor angle, φ is the actual rotor angle, K1 and K2 are filter parameters and s is a complex frequency.