Sensorless control of brushless DC motors at low speeds
Accelerated Systems is a leader in the design and implementation of control systems for electric vehicles; especially vehicles driven by permanent-magnet brushless DC (BLDC) motors. One of the key technological challenges in the use of BLDC motors is that traditional control, especially at low speeds, requires external sensors to determine the rotor position. These external sensors then become an added cost and maintenance challenge. In this project, we will investigate novel control strategies that infer the rotor position from measurements of motor voltages and currents only. A successful design will provide Accelerated Sytems with a unique technological advantage that will allow them to become the premier global supplier of controls for BLDC motors in electric vehicle applications.