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All Journal Journal of Fuzzy Systems and Control (JFSC)
Le-Nhat-Minh Tran
Ho Chi Minh City University of Technology and Engineering (HCM-UTE)
Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Comparative Evaluation of Fuzzy Logic, Sliding Mode, and LQR Controllers for DC Motor Position Control Minh-Thy Pham; Lam-Trong-Tuan Bui; Thi-Thanh-Hoang Le; Van-Bac Nguyen; Le-Khoi-Nguyen Cao; Le-Nhat-Minh Tran; Xuan-Manh Ngo; Phong-Luu Nguyen; Dinh-Phu Nguyen
Journal of Fuzzy Systems and Control Vol. 4 No. 2 (2026): Vol. 4 No. 2 (2026)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/jfsc.v4i2.405

Abstract

This paper presents a comparative evaluation of three advanced control strategies for DC motor position control, namely Fuzzy Logic Control (FLC), Sliding Mode Control (SMC), and Linear Quadratic Regulator (LQR). First, the mathematical model of the DC motor is derived from the electrical and mechanical dynamic equations. Based on this model, the three controllers are designed and implemented in MATLAB/Simulink and experimentally validated on a microcontroller-based platform under identical operating conditions. The comparative analysis is performed using quantitative performance indices, including settling time, overshoot, steady-state error, and control effort. Simulation and experimental results show that the SMC controller provides the best overall performance with fast convergence, high robustness, and small steady-state error, while the FLC approach achieves smoother responses with moderate transient performance. The LQR controller demonstrates rapid state regulation but produces larger transient peaks and higher control effort compared with the other methods. The results highlight the practical trade-offs among intelligent, robust, and optimal control strategies for low-cost DC motor position control applications.
Co-Authors Dinh-Phu Nguyen Lam-Trong-Tuan Bui Le-Khoi-Nguyen Cao Minh-Thy Pham Phong-Luu Nguyen Thi-Thanh-Hoang Le Van-Bac Nguyen Xuan-Manh Ngo