Evaluation of Ride Comfort for Active Suspension System Based on Self-tuning Fuzzy Sliding Mode Control

Hsiao, Chun-Yu; Wang, Yu-Hsien

doi:10.1007/s12555-020-0736-7

Cited by 21 publications

(8 citation statements)

References 10 publications

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“…13. As the system approaches a steady state, the magnitude of the oscillations decreases with time, as in some other studies [12,24,[19][20][21][22][23][24][25][26][27][28][29][30][31][32]. It is observed that the system reaches the equilibrium position more quickly at higher frequencies.…”

Section: ()mentioning

confidence: 59%

Design and Testing of A Cost-Effective Active Force Sensor With Servo Control

Yaman

2024

Politeknik Dergisi

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In this work, the computerized control of a hydraulic system with analog characteristics is examined, and within this scope, a novel force sensor is designed. The system consists of two main structures: an analog subsystem comprising a four-way servo valve, hydraulic piston, servo amplifier, and the designed force sensor, and a digitizing subsystem responsible for comparison and control, composed of a desktop computer. Throughout this work, a cost-effective force sensor was designed by integrating a compression spring, guides, a support frame and a linear variable differential transformer (LVDT). In this integrated system, the force applied at a specific magnitude and frequency from an external force measurement and feedback unit is converted into electrical signals by horizontal motion of the LVDT core. These electrical signals from the force sensor are digitized and fed back to the computer and data acquisition card. The digitized data transferred to the software developed in this study continuously compare with the reference data, enabling position-dependent force control. Experiments conducted with the force sensor placed between two hydraulic pistons controlled by a servo valve revealed that it caused the pistons to move right and left, providing the desired control of the system with the reference force input. The system was observed to operate much more stably, especially for high-frequency signal inputs.

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Section: ()mentioning

confidence: 59%

Design and Testing of A Cost-Effective Active Force Sensor With Servo Control

Yaman

2024

Politeknik Dergisi

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“…In [ 25 ], Zhang and Jing used an integrated controller, a combination of the Fuzzy and SMC algorithms. Hsiao and Wang again showed this combination in their study [ 26 ]. Another combination, such as PD-SMC, was performed by Zhang et al [ 27 ] and gave high efficiency.…”

Section: Introductionmentioning

confidence: 79%

Applying a PID-SMC synthetic control algorithm to the active suspension system to ensure road holding and ride comfort

Nguyen

2023

PLoS ONE

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Vehicle vibration has an essential effect on vehicle stability and smoothness. This article introduces a new solution to direct an active suspension system called the PID-SMC hybrid algorithm. In this work, a dynamic model is considered with external disturbances and parametric uncertainties. Besides, the design process of the hybrid controller is also clearly shown. Different from previous studies, this controller is built upon the synthesis of two component signals which are generated from two separate controllers. The error signals of the two-component controllers are derived from the results of the body displacement and acceleration measured by the sensors. A simulation process is done by the MATLAB software to evaluate the system’s quality. Two cases are used for the simulation, including four scenarios examined for each case. Based on the results obtained from the simulation and calculation technique, the acceleration and displacement values of a vehicle body were greatly decreased once the PID-SMC method was used, compared with the rest of situations. In the first case, the maximum value of the acceleration is only 0.54 (m/s2), while the average value and the RMS value are 0.06 (m/s2) and 0.07 (m/s2), respectively. In the second case, the maximum value of vehicle body displacement is only 9.54 (mm), only 8.75%, compared to cars with only mechanical suspensions. Besides, the change in the dynamic load at the wheel is also relatively small. Therefore, the road holding and ride comfort of the automobile has been improved. In the near future, this algorithm will be combined with intelligent control algorithms to apply to many different types of random stimuli from the road surface.

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“…The gains k and t of the inverse controller can be optimally tuned using the techniques presented in [28]. The implementation of the proposed robust backstepping controller based on a single UPS is shown in Figure 4.…”

Section: The Proposed Improved Backstepping Control For DC Circulatio...mentioning

confidence: 99%

Design and analysis of robust backstepping controller for DC suppression of parallel UPS inverter system

Zhou

Yang

et al. 2022

IET Power Electronics

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Here, an improved control strategy is proposed, which adopts a non‐linear robust backstepping controller to eliminate DC circulating current in a parallel uninterruptible power supply (UPS) system. The traditional active and reactive power sharing control can ideally suppress the AC circulating current, but cannot effectively restrict the DC circulating current. Based on the traditional active power and reactive power sharing control (TAPRPSC) of the parallel UPS system, the proposed control strategy is used in each parallel inverter module to suppress the DC component disturbance in the inverter output voltage, which varies within a certain range. Hence the desirable steady‐state and dynamic performance of the system can be obtained. Moreover, the Lyapunov method is utilized to ensure the stability and robustness of the system. A parallel system of two UPS inverters with the proposed control strategy is built by Matlab/Simulink, and further experiments are carried out on the semi‐physical simulation platform of the Modelling Tech. Both the simulation and experimental results verify the effectiveness of the proposed control strategy for DC circulating current suppression and ideal output voltage tracking.

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Evaluation of Ride Comfort for Active Suspension System Based on Self-tuning Fuzzy Sliding Mode Control

Cited by 21 publications

References 10 publications

Design and Testing of A Cost-Effective Active Force Sensor With Servo Control

Design and Testing of A Cost-Effective Active Force Sensor With Servo Control

Applying a PID-SMC synthetic control algorithm to the active suspension system to ensure road holding and ride comfort

Design and analysis of robust backstepping controller for DC suppression of parallel UPS inverter system

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