Brushless repulsion motor speed control system

A system for controlling the speed of a brushless repulsion motor having a series of switches mounted on a rotating armature for shorting circumferentially spaced armature coils, the system comprising:

• a controller mounted on the armature for controlling the switches;
• a plurality of stationary markers on the stator of the motor;
• and
• signaling means and corresponding detecting means on the armature for providing a speed feedback signal to the controller.

A system for controlling the speed of a brushless repulsion motor having a stator and a series of switches mounted on a rotating armature for shorting circumferentially spaced armature coils, the system comprising:

• a plurality of markers on the armature;
• a signaling source directed to the markers;
• a detector for detecting the markers and generating a speed feedback signal;
• and
• a controller for controlling the switches.

A speed control system for a brushless repulsion motor having a stator, an armature, and a series of coil switches for shorting a succession of armature coils, the speed control system comprising:

• a position marker on the armature for determining armature coil position;
• first signaling means;
• a position detector for detecting the armature coil position marker via the first signaling means;
• a plurality of markers on the armature for determining armature speed;
• second signaling means;
• a speed detector for detecting the speed of the armature via the second signaling means;
• and
• a timer for controlling the speed of the armature and the desired speed of the motor at the precise time as determined by the position of one of the armature coils.

A speed control system for a brushless repulsion motor having a stator, an armature, and a series of coil switches for shorting a succession of armature coils, the speed control system comprising:

• a first controller for generating coded signals for speed control;
• transmitting means for transmitting the coded signals to the armature;
• receiving on the armature means for receiving the coded signals;
• decoding means on the armature for decoding the coded signals;
• and
• a second controller on the armature for controlling the coil switches.

A system for controlling the speed of a brushless repulsion motor having a series of switches mounted on a rotating armature for shorting circumferentially spaced armature coils, the system comprising:

• first stationary signaling means and a plurality of rotating detectors for activating said switches;
• an encoder for detecting the speed and position of the coil switches and generating a speed feedback signal and a position feedback signal;
• generating means for generating a speed command signal;
• an error calculator for comparing the speed feedback and speed command signals and generating an error signal;
• and
• a timer for controlling the signaling means based on the error signal.