A multi-phase switched reluctance motor including a rotor and a stator, an electronic commutator subassembly, and a controller. The electronic commutator subassembly includes an electronic motor control unit, a power inverter, and a rotational position sensor, with the power inverter being electrically connected to the stator of the switched reluctance motor. The controller is in communication with the electronic motor control unit, the power inverter, and the rotational position sensor. The controller includes an instruction set that is executable to characterize operation of the switched reluctance motor, dynamically determine inductance of the switched reluctance motor based upon the characterized operation, and execute a closed-loop torque control routine to control the switched reluctance motor based upon the dynamically determined inductance of the switched reluctance motor. The closed-loop torque control routine dynamically determines torque output from the switched reluctance motor based upon the dynamically determined inductance.

A device may select an operation mode based on at least one of a motor speed, a motor transient speed, or a motor power command value. The operation mode may be selected from a group of operation modes including a single pulse mode, a continuous conduction mode, and a variable dwell continuous conduction mode. The device may control a switched reluctance motor using the operation mode.

A control circuit controls driving of a motor to switch over a shift range. A target rotation speed setting part sets a target rotation speed of the motor. A rotation speed detection part detects a present rotation speed, which is an actual rotation speed, of the motor. A rotation speed error calculation part calculates a rotation speed error, which is an error between the target rotation speed and the present rotation speed. A request torque calculation part calculates a request torque for the motor based on the rotation speed error. A phase lead correction value calculation part calculates a phase lead correction value of a current supply phase relative to a rotation phase of a rotor of the motor based on the request torque.

A state machine includes a stator assembly arranged to generate a rotating electromagnetic field in response to a control signal and a rotor assembly, positioned adjacent to the stator assembly, arranged to rotate in response to the rotating electromagnetic field. A sensor is arranged to detect an angular position of the rotor assembly and output sensor data based on the angular position of the rotor assembly. A controller is arranged to receive the sensor data and adjust the control signal based on the angular position of the rotor assembly to adjust a torque of associated with the rotor assembly when the state machine functions as a motor or to adjust a power output from the stator assembly when the state machine functions as a generator.

A control device for a switched reluctance motor includes an inverter having a switching circuit that switches a magnetic pole to provide a first winding pattern or a second winding pattern. With respect to a boundary dividing a driving range of the switched reluctance motor into two ranges, the control device performs switching to the first winding pattern when the torque and the rotational speed are located in the first range on the low load side, performs switching to the second winding pattern when the torque and the rotational speed are located in the second range, allows switching of the magnetic pole in a case where a current of the phase whose magnetic pole is to be switched among the three-phase coils is 0, and prohibits switching of the magnetic pole in a case where the current of the phase whose magnetic pole is to be switched is not 0.

A control device for a switched reluctance motor includes an inverter having a switching circuit that switches a magnetic pole to provide a first winding pattern or a second winding pattern. With respect to a boundary dividing a driving range of the switched reluctance motor into two ranges, the control device performs switching to the first winding pattern when the torque and the rotational speed are located in the first range on the low load side, performs switching to the second winding pattern when the torque and the rotational speed are located in the second range, allows switching of the magnetic pole in a case where a current of the phase whose magnetic pole is to be switched among the three-phase coils is 0, and prohibits switching of the magnetic pole in a case where the current of the phase whose magnetic pole is to be switched is not 0.

A state machine includes a state machine having a stator assembly arranged to generate a rotating electromagnetic field in response to a control signal. The stator assembly includes a plurality of stator poles, each of the plurality of stator poles includes a coil wound normal to an axis of rotation of a rotor assembly. The state machine also includes a rotor assembly, positioned adjacent to the stator assembly, arranged to rotate in response to the rotating electromagnetic field about the axis of rotation. A first sensor is arranged to detect an angular position of the rotor assembly and output first sensor data based on the angular position of the rotor assembly. The state machine also includes a controller including a processor, a plurality of capacitors respectively electrically connected to the plurality of stator poles, and a plurality of switches respectively electrically connected to the plurality of capacitors, and the plurality of switches are controllable by the processor.

A control device for a switched reluctance motor includes: a switching controller configured to execute switching control to switch drive control of the switched reluctance motor between a first control mode for reducing torque fluctuations and a second control mode for reducing fluctuations of a radial force based on rotational speed and a torque of the switched reluctance motor; a first controller configured to execute first control to cause an excitation current with a current waveform for reducing the torque fluctuations to flow through the coils; and a second controller configured to execute second control to cause an excitation current with a current waveform for reducing the radial force fluctuations to flow through the coils.

A state machine includes a state machine having a stator assembly arranged to generate a rotating electromagnetic field in response to a control signal. The stator assembly includes a plurality of stator poles, each of the plurality of stator poles includes a coil wound normal to an axis of rotation of a rotor assembly. The state machine also includes a rotor assembly, positioned adjacent to the stator assembly, arranged to rotate in response to the rotating electromagnetic field about the axis of rotation. A first sensor is arranged to detect an angular position of the rotor assembly and output first sensor data based on the angular position of the rotor assembly. The state machine also includes a controller including a processor, a plurality of capacitors respectively electrically connected to the plurality of stator poles, and a plurality of switches respectively electrically connected to the plurality of capacitors, and the plurality of switches are controllable by the processor.