Volume : 12, Issue : 4, APR 2026

ELECTRIC BIKE SPEED CONTROLLING SYSTEM USING STM-32

B ANANDSWAROOP*, V VENKATKUMAR, A.RAJESH, V.GANESH, M.NAVYASRI

Abstract

Electric bicycles (e-bikes) have emerged as an efficient and sustainable solution for modern urban transportation. This paper presents the design and development of an intelligent speed controlling system for an electric bike using the STM32F103C8T6 microcontroller. The system employs a Brushless DC (BLDC) motor driven by a three-phase MOSFET inverter and controlled through high-frequency Pulse Width Modulation (PWM). Real-time monitoring of throttle input, battery voltage, motor current, and temperature is implemented using sensors such as Hall-effect sensors and ACS712 current sensors. A closed-loop control algorithm ensures smooth acceleration, precise speed regulation, and efficient power utilization. Safety features including low-voltage cut-off, over current protection, and thermal monitoring are incorporated to enhance reliability. Experimental results demonstrate accurate speed control, improved efficiency, and robust system performance. The proposed system offers a scalable and cost-effective solution for intelligent electric mobility applications.

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IESRJ

International Educational Scientific Research Journal

E-ISSN: 2455-295X

International Indexed Journal | Multi-Disciplinary Refereed Research Journal

ISSN: 2455-295X

Peer-Reviewed Journal - Equivalent to UGC Approved Journal

Peer-Reviewed Journal

Article No : 13

Number of Downloads : 39

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