초록 ▼

Apparatus for estimating torque generated by a switched reluctance machine utilizes a ROM table look-up scheme to generate a torque estimate based upon phase current and rotor position information. Each ROM address is accessed by digitizing and then combining sensed phase current and rotor position

Apparatus for estimating torque generated by a switched reluctance machine utilizes a ROM table look-up scheme to generate a torque estimate based upon phase current and rotor position information. Each ROM address is accessed by digitizing and then combining sensed phase current and rotor position signals. Knowledge of the instantaneous torque output enables closed-loop torque control including appropriate adjustments of phase currents to reduce or eliminate torque pulsations.

대표청구항 ▼

Apparatus for estimating electromagnetic torque output of a switched reluctance machine having at least one phase, comprising: rotor position sensor means for sensing the instantaneous position of said rotor and generating a rotor position signal representative thereof; current sensor means for sens

Apparatus for estimating electromagnetic torque output of a switched reluctance machine having at least one phase, comprising: rotor position sensor means for sensing the instantaneous position of said rotor and generating a rotor position signal representative thereof; current sensor means for sensing the instantaneous phase current in each respective phase of said switched reluctance motor and generating a phase current signal representative thereof; torque look-up table means responsive to said rotor position signal and each said phase current signal for generating a phase torque signal corresponding thereto; and means for combining each said phase torque signals to produce a total torque signal.