Systems and methods for controlling operation of a dishwashing appliance are disclosed. For instance, data indicative of a supply voltage associated with a dishwashing appliance can be received. The supply voltage can be compared to a nominal voltage associated with the dishwashing appliance. One or more voltage control parameters can be determined based at least in part on the comparison. A speed of a motor associated with the dishwashing appliance can be adjusted based at least in part on the voltage control parameters.

A braking torque closed-loop control system and method for a switch reluctance motor. The closed-loop control system comprises a torque regulator, a mode selector, a current regulator, an angle optimization controller and a torque estimator. On the basis of the rotating speed of the motor, the mode selector implements a phase current soft chopper control in a low rotating speed region and an angle position control in a high rotating speed region. The current regulator performs soft chopper hysteretic current regulation. The angle optimization controller optimizes a turn-on angle and a turn-off angle of a power converter master switch to reduce torque pulsation and improve braking energy feedback efficiency. The torque estimator conducts an on-line estimation of an actual braking torque estimated value of the motor based on an actual phase voltage and current of the motor to achieve braking torque signal feedback.

An actuator for use with an external controller, either alone or in a group including other actuators controlled from the same external controller. The actuator includes a housing for encasing internal components of the device; a motor assembly for creating motion, the motor assembly being disposed within the housing; and a drive assembly for driving a pushrod, the drive assembly being arranged within the housing and slidingly connected to the motor assembly. A remote control communication circuit is electrically connected to the motor. The remote control communication circuit includes a short range transmitter/receiver for paring the actuator to an external control device and a longer range transmitter/receiver for communicating operational control signals between the external control device and the actuator.

A filter for motor speed measurement signals includes one or more resonators configured to filter signals having a frequency that is proportional by a predetermined factor to the frequency of the motor whose speed is measured.

An actuator for use with an external controller, either alone or in a group including other actuators controlled from the same external controller. The actuator includes a housing for encasing internal components of the device; a motor assembly for creating motion, the motor assembly being disposed within the housing; and a drive assembly for driving a pushrod, the drive assembly being arranged within the housing and slidingly connected to the motor assembly. A remote control communication circuit is electrically connected to the motor. The remote control communication circuit includes a short range transmitter/receiver for paring the actuator to an external control device and a longer range transmitter/receiver for communicating operational control signals between the external control device and the actuator.

A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step 1); computing a present speed-proportional gain range (Step 2); computing a present mechanical-system characteristic constant (Step 3); computing a present proportional gain range (Step 4); computing a secular characteristic (Step 5); computing a secular speed-proportional gain range (Step 6); computing a secular proportional gain range (Step 7); and selecting proportional gain values (Step 8).

A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step 1); computing a present speed-proportional gain range (Step 2); computing a present mechanical-system characteristic constant (Step 3); computing a present proportional gain range (Step 4); computing a secular characteristic (Step 5); computing a secular speed-proportional gain range (Step 6); computing a secular proportional gain range (Step 7); and selecting proportional gain values (Step 8).

A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step 1); computing a present speed-proportional gain range (Step 2); computing a present mechanical-system characteristic constant (Step 3); computing a present proportional gain range (Step 4); computing a secular characteristic (Step 5); computing a secular speed-proportional gain range (Step 6); computing a secular proportional gain range (Step 7); and selecting proportional gain values (Step 8).

A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step 1); computing a present speed-proportional gain range (Step 2); computing a present mechanical-system characteristic constant (Step 3); computing a present proportional gain range (Step 4); computing a secular characteristic (Step 5); computing a secular speed-proportional gain range (Step 6); computing a secular proportional gain range (Step 7); and selecting proportional gain values (Step 8).

A method, according to the present invention, of adjusting control parameters used in a control apparatus of an electric motor includes the steps of: computing a first frequency characteristic (Step 1); computing a present speed-proportional gain range (Step 2); computing a present mechanical-system characteristic constant (Step 3); computing a present proportional gain range (Step 4); computing a secular characteristic (Step 5); computing a secular speed-proportional gain range (Step 6); computing a secular proportional gain range (Step 7); and selecting proportional gain values (Step 8).