A novel control strategy for semi-active suspensions with variable damping and stiffness

2010 ◽  
Author(s):  
C Spelta ◽  
F Previdi ◽  
S M Savaresi ◽  
P Bolzern ◽  
M Cutini ◽  
...  
Keyword(s):  
Control Strategy ◽  
Active Suspensions ◽  
Variable Damping

scholarly journals Variable damping control strategy of a semi-active suspension based on the actuator motion state

2019 ◽  
Vol 39 (3) ◽  
pp. 787-802 ◽  
Author(s):  
Mingde Gong ◽  
Hao Chen
Keyword(s):  
Control Strategy ◽  
Ride Comfort ◽  
Active Suspension ◽  
Suspension System ◽  
Heavy Vehicles ◽  
Damping Force ◽  
Damping Control ◽  
Motion State ◽  
Variable Damping ◽  
Work First

A semi-active suspension variable damping control strategy for heavy vehicles is proposed in this work. First, a nine-degree-of-freedom model of a semi-active suspension of heavy vehicles and a stochastic road input mathematical model are established. Second, using a 1/6 vehicle as an example, a semi-active suspension system with damping that can be adjusted actively is designed using proportional relief and throttle valves. The damping dynamic characteristics of the semi-active suspension system and the time to establish the damping force are studied through a simulation. Finally, a variable damping control strategy based on an actuator motion state is proposed to adjust the damping force of the semi-active suspension system actively and therefore satisfy the vibration reduction requirements of different roads. Results show that the variable damping control suspension can substantially improve vehicle ride comfort and handling stability in comparison with a passive suspension.

A Comfort Oriented Control Strategy for Semi-Active Suspensions Based on Half Car Model

2010 ◽  
Author(s):  
Cristiano Spelta ◽  
Diego Delvecchio ◽  
Sergio M. Savaresi
Keyword(s):  
Optimal Control ◽  
Control Strategy ◽  
Optimal Performance ◽  
Optimal Control Strategy ◽  
Active Suspensions ◽  
Quarter Car Model ◽  
Car Model ◽  
Control Goal ◽  
Quarter Car ◽  
Effective Description

This paper is devoted to the design of a novel semi-active comfort-oriented control strategy based on the “half-car” modeling of the vehicle. The half car model is an effective description of the vertical behaviors in a vehicle like a motorcycle, since it is able to represent both the heave and pitch dynamics. A recent control strategy (the “Mix-1-Sensor”) have been proven to be the quasi-optimal control strategy when the system is described with a quarter car model and the comfort objective is the control goal. This paper presents an analysis of the performances of the Mix-1-Sensor implemented in a half car: this strategy is able to guarantee a quasi optimal performance in terms of heave dynamics but it is not able to manage the pitch dynamics efficiently. A pitch-oriented extension of this strategy is proposed in order to guarantee a better filtering of the pitch dynamics.

A New Fuzzy Control Strategy for Active Suspensions Applied to a Half Car Model

2013 ◽  
Vol 1 (2) ◽  
pp. 128-134
Author(s):  
Mohammed H. Abushaban ◽  
Iyad M. Abuhadrous ◽  
Mahir B. Sabra
Keyword(s):  
Fuzzy Control ◽  
Control Strategy ◽  
Active Suspensions ◽  
Car Model ◽  
Fuzzy Control Strategy

Non-linear modelling and control of semi-active suspensions with variable damping

2013 ◽  
Vol 51 (10) ◽  
pp. 1568-1587 ◽  
Author(s):  
Huang Chen ◽  
Chen Long ◽  
Chao-Chun Yuan ◽  
Hao-Bin Jiang
Keyword(s):  
Active Suspensions ◽  
Linear Modelling ◽  
Non Linear ◽  
Variable Damping ◽  
And Control

SWITCHED H∞ CONTROL STRATEGY OF AUTOMOTIVE ACTIVE SUSPENSIONS

2005 ◽  
Vol 38 (1) ◽  
pp. 198-203 ◽  
Author(s):  
A. Zin ◽  
O. Sename ◽  
L. Dugard
Keyword(s):  
Control Strategy ◽  
Active Suspensions

Performance analysis of semi-active suspensions with control of variable damping and stiffness

2011 ◽  
Vol 49 (1-2) ◽  
pp. 237-256 ◽  
Author(s):  
Cristiano Spelta ◽  
Fabio Previdi ◽  
Sergio M. Savaresi ◽  
Paolo Bolzern ◽  
Maurizio Cutini ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Active Suspensions ◽  
Variable Damping

scholarly journals Adaptive Damping Variable Sliding Mode Control for an Electrohydrostatic Actuator

Actuators ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 83
Author(s):  
Linjie Li ◽  
Mingkang Wang ◽  
Rongrong Yang ◽  
Yongling Fu ◽  
Deming Zhu
Keyword(s):  
Sliding Mode Control ◽  
Control Strategy ◽  
Hydraulic System ◽  
Sliding Mode ◽  
Parametric Uncertainties ◽  
Tracking Accuracy ◽  
Mode Control ◽  
Tracking Tasks ◽  
Variable Damping ◽  
Adaptive Control Law

An electrohydrostatic actuator (EHA) is a basic mechanical/hydraulic system with deficiencies including significant nonlinearity and parametric uncertainties. In line with the challenges of designing a high-precision control strategy, an adaptive damping variable sliding mode controller is established, which extends our previous work on EHA control. The proposed controller integrates variable-damping sliding mode control, parametric adaptation, and an extended state observer. The parametric uncertainties are effectively captured and compensated by employing an adaptive control law, while system uncertainties are reduced, and disturbances are estimated and compensated with a fast and stable response. We evaluated the proposed control strategy on a variety of position tracking tasks. The experimental results demonstrate that our controller significantly outperforms the widely used methods in overshoot suppression, settling time, and tracking accuracy.

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