Sliding mode control of active suspension systems using a disturbance observer

Deshpande, Vaijayanti S.; Bhaskara, Mohan; Phadke, S. B.

doi:10.1109/vss.2012.6163480

Cited by 28 publications

(13 citation statements)

References 24 publications

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“…In [18], Bai and Guo also summarized the sliding mode controller design process which is used to control the hydraulic actuator of the active suspension system. In order to improve the efficiency of this method, Deshpande et al proposed the design of the sliding mode controller using the disturbance observer [19]. e sliding mode controller helps the output signal track with the setpoint signal, and this controller is very stable and robust.…”

Section: Introductionmentioning

confidence: 99%

Improving the Comfort of the Vehicle Based on Using the Active Suspension System Controlled by the Double‐Integrated Controller

Nguyen

2021

Shock and Vibration

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When the vehicle moves on the road, many external factors affect the vehicle. These effects can cause oscillation and instability for the vehicle. The oscillation of the vehicle directly affects the safety and comfort of passengers. The suspension system is used to control and extinguish these oscillations. However, the conventional passive suspension system is unable to fully meet the vehicle’s requirements for stability and comfort. To improve these problems, these are much modern suspension system models that have been used in the vehicle to replace the passive suspension system. The modern suspension systems are used as the air suspension system, semiactive suspension system, and active suspension system. These systems which are controlled automatically by the controller were established based on the control methods. There are a lot of control methods which are used to control the operation of the active suspension system. These methods have their advantages and disadvantages. Almost, conventional control methods such as PID, LQR, or SMC are commonly used. However, they do not provide optimal efficiency in improving a vehicle’s oscillation. Therefore, it is necessary to establish a novel solution for the active suspension system control to improve the vehicle’s oscillation. In this paper, the method of using the double-integrated controller is proposed to solve the above problem. The double-integrated controller consists of two hydraulic actuators which are controlled completely separately. This is a completely novel and original method that can provide positive effects. This research focuses on establishing, simulating, and evaluating the novel control method (the double-integrated control) for the active suspension system. The results of the research have shown that when the vehicle is equipped with the active suspension system which is controlled by the double-integrated controller, the maximum values of displacement and acceleration of the sprung mass are significantly reduced. They reach only 6.25% and 9.10% (case 1) and 6.00% and 6.12% (case 2) compared to the conventional passive suspension system. Besides, its average values which are calculated by RMS are only about 3.91% and 4.67% (case 1) and 4.48% and 4.77% (case 2) compared to the above case. Therefore, the comfort and stability of the vehicle have been improved. This paper provides new concepts and knowledge about the double-integrated control method which will become the trend to be used in the next time for the systems of the vehicle. In the future, experimental procedures also need to be conducted to be able to more accurately evaluate the results of this research.

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Section: Introductionmentioning

confidence: 99%

Improving the Comfort of the Vehicle Based on Using the Active Suspension System Controlled by the Double‐Integrated Controller

Nguyen

2021

Shock and Vibration

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“…Using the Skyhook reference model and the adaptive parameter controller based on the Lyapunov method is presented in [4]. In [5,6], authors applied the free-model sliding mode control with time-delay estimation to eliminate the nonlinear, uncertainty and noise acting on the system. The modal feedback method used to control ASS is written in the material [7], this method control independently in each vibration mode of ASS, the controller parameters are turned by an optimal control method.…”

Section: Introductionmentioning

confidence: 99%

The algorithm of adaptive control for active suspension systems using pole assign and cascade design method

Van¹

2020

IJRA

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This paper presents the active suspension system (ASS) control method using the adaptive cascade control scheme. The control scheme is implemented by two control loops, the inner control loop and outer control loop are designed respectively. The inner control loop uses the pole assignment method in order to move the poles of the original system to desired poles respect to the required performance of the suspension system. To design the controller in the inner loop, the model without the noise caused by the road profile and velocity of the car is used. The outer control loop then designed with an adaptive mechanism calculates the active control force to compensate for the vibrations caused by the road profile and velocity of the car. The control force is determined by the error between states of the reference model and states of suspension systems, the reference model is the model of closed-loop with inner control loop without the noise. The simulation results implemented by using the practice date of the road profile show that the capability of oscillation decrease for ASS is quite efficient

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“…Active suspension can solve the problem of driving comfort and control stability under different working conditions that cannot be solved by traditional passive suspension. In recent years, some new control strategies have been put forward , so research into the active suspension system combining with new control strategies has become a hot topic in recent years .…”

Section: Introductionmentioning

confidence: 99%

Fuzzy Sliding Mode Control for Active Suspension System with Proportional Differential Sliding Mode Observer

Lin

2018

Asian Journal of Control

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In this paper, a generalized augmented transformation is considered for the quarter active suspension system with uncertainties. Specifically, the model uncertainties are converted to the augmented states and a new proportion differential sliding mode observer is used to estimate state variables and model uncertainties. A differential geometric method is applied to linearize the nonlinear suspension model. In order to weaken the vibration effect of sliding mode control force and reduce energy consumption, a fuzzy sliding mode controller is designed for the active suspension system and the fuzzy controller is applied to adjust switching control gain according to the reaching condition of sliding mode surface. The simulations are conducted to illustrate the effectiveness and advantages of this proposed observer and control strategy.

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Sliding mode control of active suspension systems using a disturbance observer

Cited by 28 publications

References 24 publications

Improving the Comfort of the Vehicle Based on Using the Active Suspension System Controlled by the Double‐Integrated Controller

Improving the Comfort of the Vehicle Based on Using the Active Suspension System Controlled by the Double‐Integrated Controller

The algorithm of adaptive control for active suspension systems using pole assign and cascade design method

Fuzzy Sliding Mode Control for Active Suspension System with Proportional Differential Sliding Mode Observer

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