The device uses an ultrasonic sensor to detect nearby obstacles and provides real-time audio feedback, helping users navigate their environment more safely and independently.

Abstract: The brushless dc (BLDC) motor can be driven by either pulse-width modulation (PWM) or pulse-amplitude modulation (PAM) techniques. Unfortunately, neither of them can be the most suitable ...

Different from the conventional methods utilizing phase current or phase voltage sensors, the dc-link voltage sensor is used to estimate the rotor initial position. In the proposed method, a specific ...

permanent magnet synchronous motors (PMSMs), and brushless DC motors. Each brings trade-offs in efficiency, cost, and performance. Among the many technologies driving the electric vehicle ...