Sliding Mode Control of Laterally Interconnected Air Suspensions

Guowei, Dou; Yu, Wenhao; Li, Zhongxing; Khajepour, Amir; Tan, Senqi

doi:10.3390/app10124320

Cited by 12 publications

(10 citation statements)

References 48 publications

(55 reference statements)

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“…Variations in internal pneumatic pressure affect the spring's stiffness. 4,5 Besides, the suspension system using a magnetorheological damper helps to improve the vehicle's stability during its motion. The magnetorheological damper uses electromagnetic force to regulate the flow of internally circulated liquid, thus making it possible to flexibly change the oscillation quenching process.…”

Section: Introductionmentioning

confidence: 99%

Application of hybrid control algorithm on the vehicle active suspension system to reduce vibrations

Nguyen,

Iqbal,

Tran

et al. 2024

Advances in Mechanical Engineering

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This research proposes a hybrid control algorithm to enhance smoothness in a vehicle’s motion. The control signal is synthesized from two separate controllers, Proportional Integral Derivative (PID) and Sliding Mode Control (SMC), to achieve superior control performance. The novelty of the proposed control algorithm lies in using a double-loop algorithm to determine the controller parameters. The algorithm proposed in this research involves two computational processes to determine the model’s optimal values including the raw value and the acceptable value. The proposed control algorithm has been simulated considering three specific cases corresponding to the three types of road stimuli. The results demonstrate that the values of sprung mass displacement and acceleration dropped considerably with the application of the proposed algorithm. Moreover, the change in vertical force at the wheel is also reduced with the application of the algorithm particularly in the third case where the vertical force at the wheel has reached to zero. The average values of vehicle body displacement are found to be 166.17 mm (for passive case), 54.20 mm (for PID), and 42.52 mm (for SMC). The proposed control algorithm managed to reduce this value to 8.95 mm as evidenced by simulation results. Finally, the response of the control system when subjected to an excitation signal from the road surface further demonstrates efficacy of the proposed hybrid control algorithm.

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Section: Introductionmentioning

confidence: 99%

Application of hybrid control algorithm on the vehicle active suspension system to reduce vibrations

Nguyen,

Iqbal,

Tran

et al. 2024

Advances in Mechanical Engineering

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“…15 Based on the sliding mode control, Dou et al considered the dynamics of a full-vehicle model with air suspension. 16 Chen et al studied the chaotic behaviour of a fractional suspension system with nonlinear terms both in the conservative and the damping force, 17 and the influence of the coefficients on the dynamical behaviour is analyzed. Tuwa et al studied the dynamics of a quarter car suspension with fractional order derivative by using multi-scale method, 18 and the bifurcations and the chaotic behaviour of the system are investigated.…”

Section: Introductionmentioning

confidence: 99%

Optimal nonlinear polynomial control of a quarter-vehicle suspension system under harmonic and random road excitations

Zhao

Wang

2023

Journal of Low Frequency Noise, Vibration and Active Control

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The present paper proposes an optimal polynomial control strategy for a quarter-vehicle suspension system based on dynamic programming. The optimal control objective is to decrease the responses of sprung mass acceleration, suspension deformation and road excitation, which are reflected in the performance index. The optimal control force is obtained through the principle of dynamic programming, and the form of the optimal control force mainly depends on the form of the cost function. The optimal nonlinear polynomial control (NPC) force is derived by selecting the cost function in polynomial form. The linear feedback matrix and nonlinear feedback matrix in the NPC force are determined by the Riccati equation and Lyapunov equation, respectively. The root mean square (RMS) responses of the sprung mass acceleration, suspension deformation and road load of driving vehicles under deterministic and random road surfaces are calculated. The numerical results showed that the proposed NPC strategy has a better control effect over the traditional linear quadratic regulator (LQR), especially on the peak reduction of sprung mass acceleration. Finally, the optimal control force is divided into active control force and passive control force. The energy input of the optimal control force can be reduced by only inputting the active control force.

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“…To overcome the drawbacks of the aforementioned passive and active suspensions, a passive interconnected suspension has been proposed with advantages in its simplicity, low cost, free energy consumption, and reliability. The interconnected suspension system can be realized through hydraulic, 5 mechanical, 6,7 and pneumatic methods. 8 In an interconnected suspension system, the force generated by one wheel station can be transmitted to the other wheel station through mechanical or fluidical means.…”

Section: Introductionmentioning

confidence: 99%

A comfort performance improved anti-pitch hydraulically interconnected suspension system with switchable dual accumulators

Wang

Zheng

Zhang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper introduces a novel switchable dual accumulators hydraulically interconnected suspension (SDAHIS) system. The proposed SDAHIS system can improve the ride comfort and anti-pitch performances simultaneously compared with the existing anti-pitch hydraulically interconnected suspension (HIS) system. The SDAHIS system uses a two-way valve for accumulators switching. The developed SDAHIS system achieve the function by controlling the connection of the two switchable accumulators. To comprehensively study the proposed system, the SDAHIS system model and the seven-DOF vehicle model are established. The model of the SDAHIS system is validated by the bench test. The simulation results of the full vehicle with the proposed SDAHIS system show that the anti-pitch and ride comfort performances are simultaneously improved. This research further exploits the potential of the HIS system which can help to better design the suspension system.

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Sliding Mode Control of Laterally Interconnected Air Suspensions

Cited by 12 publications

References 48 publications

Application of hybrid control algorithm on the vehicle active suspension system to reduce vibrations

Application of hybrid control algorithm on the vehicle active suspension system to reduce vibrations

Optimal nonlinear polynomial control of a quarter-vehicle suspension system under harmonic and random road excitations

A comfort performance improved anti-pitch hydraulically interconnected suspension system with switchable dual accumulators

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