scholarly journals LENGVŲJŲ AUTOMOBILIŲ PASYVIŲ IR PUSIAU AKTYVIŲ PAKABŲ TYRIMAS / THE RESEARCH OF PASSENGER CAR PASSIVE AND SEMI-ACTIVE SUSPENSION

2018 ◽  
Vol 10 (0) ◽  
pp. 1-5
Author(s):  
Vytenis Surblys ◽  
Edgar Sokolovskij
Keyword(s):  
Software Package ◽  
Shock Absorber ◽  
Model Simulation ◽  
Active Suspension ◽  
Passenger Car ◽  
Matlab Simulink ◽  
Quarter Car Model ◽  
Car Model ◽  
Suspension Control ◽  
Quarter Car

In this article passenger car suspensions are analyzed, depending on the type of shock absorber. Introduced typical suspension components and semi-active suspension control called “Skyhook”. An overview of the literature is provided also presented the research of passive and semi-active suspension. A quarter-car model simulation has been performed using Matlab/Simulink software package. In results are analyzed sprung and unsprung masses displacements and suspension deflection rates when vehicle are moving over speed lowering bump. Santrauka Šiame darbe analizuojamos lengvųjų automobilių pakabos priklausomai nuo amortizatoriaus tipo. Pateikiamos tipinės sudedamosios pakabos dalys ir pusiau aktyvios pakabos, veikiančios „Skyhook“ valdymo principu. Pateikiama literatūros apžvalga, taip pat atliekamas pasyvios ir pusiau aktyvios pakabos tyrimas. Atliekamas ketvirčio automobilio modeliavimas „Matlab/Simulink“ programiniu paketu. Analizuojami amortizuotos ir neamortizuotos masių poslinkiai ir pakabos eigos greičiai, modeliui judant per nelygumą su skirtingomis pakabomis.

Optimal active suspension control based on a quarter-car model: an analytical solution

2010 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Naser Pourqorban Shirjoposht ◽  
Iraj Hassanzadeh ◽  
Farzad Hashemzadeh ◽  
Ghasem Alizadeh
Keyword(s):  
Analytical Solution ◽  
Active Suspension ◽  
Quarter Car Model ◽  
Car Model ◽  
Suspension Control ◽  
Quarter Car

Vibration Investigation of a Quarter Car with Nonlinear Shock Absorber Model

2012 ◽  
Vol 576 ◽  
pp. 665-668
Author(s):  
Fadly Jashi Darsivan ◽  
Waleed F. Faris
Keyword(s):  
Shock Absorber ◽  
Model Simulation ◽  
Damping Force ◽  
Quarter Car Model ◽  
Car Model ◽  
Road Profile ◽  
Non Linear ◽  
Nonlinear Shock ◽  
Quarter Model ◽  
Quarter Car

The paper discusses the response and the accuracy of a quarter car model with a non-linear damping force. The non-linear shock absorber model was a result of an experiment that was conducted earlier and the mathematical model was verified. Based on this model simulation responses of the sprung and unsprung masses between a linear and the non-linear damper were compared. The wheel of the quarter car model was excited by a road profile and according to the results the non-linear quarter model showed responses which were not depicted and captured by the linear model.

Construction of an active suspension system of a quarter car model using fuzzy reasoning based on single input rule modules

2000 ◽  
Vol 23 (3/4) ◽  
pp. 297 ◽  
Author(s):  
Toshio Yoshimura ◽  
Hirofumi Kubota ◽  
Kazuyoshi Takei ◽  
Masao Kurimoto ◽  
Junichi Hino
Keyword(s):  
Fuzzy Reasoning ◽  
Active Suspension ◽  
Suspension System ◽  
Quarter Car Model ◽  
Car Model ◽  
Single Input ◽  
Quarter Car

scholarly journals On the Benefits of Semi-Active Suspensions with Inerters

2012 ◽  
Vol 19 (3) ◽  
pp. 257-272 ◽  
Author(s):  
Xin-Jie Zhang ◽  
Mehdi Ahmadian ◽  
Kong-Hui Guo
Keyword(s):  
High Performance ◽  
Control Method ◽  
Hybrid Control ◽  
Active Suspension ◽  
Vertical Acceleration ◽  
Active Suspensions ◽  
Quarter Car Model ◽  
Suspension Systems ◽  
Car Model ◽  
Quarter Car

Inerters have become a hot topic in recent years especially in vehicle, train, building suspension systems, etc. Eight different layouts of suspensions were analyzed with a quarter-car model in this paper. Dimensionless root mean square (RMS) responses of the sprung mass vertical acceleration, the suspension travel, and the tire deflection are derived which were used to evaluate the performance of the quarter-car model. The behaviour of semi-active suspensions with inerters using Groundhook, Skyhook, and Hybrid control has been evaluated and compared to the performance of passive suspensions with inerters. Sensitivity analysis was applied to the development of a high performance semi-active suspension with an inerter. Numerical simulations indicate that a semi-active suspension with an inerter has much better performance than the passive suspension with an inerter, especially with the Hybrid control method, which has the best compromise between comfort and road holding quality.

Energy harvesting from suspension system and self-powered vibration control for a seven degree of freedom vehicle model

2017 ◽  
Vol 232 (3) ◽  
pp. 342-356 ◽  
Author(s):  
Panagiotis Bazios ◽  
Farbod Khoshnoud ◽  
Ibrahim Esat
Keyword(s):  
Active Suspension ◽  
Suspension System ◽  
Degree Of Freedom ◽  
Roll Motion ◽  
Vehicle Model ◽  
Quarter Car Model ◽  
Car Model ◽  
Quarter Car ◽  
Self Powered ◽  
Regeneration Capability

Traditionally, a quarter-car model and a sky-hook controller are employed to derive analytical expressions that describe conditions for self-powered operation. The main contribution of this work consists in using a seven degree of freedom vehicle model to determine numerically the condition for self-powered operation of an active suspension system with electromagnetic actuators. The performance of proportional–integral–derivative, linear quadratic regulator, and fuzzy Logic suspension controllers that employ feedback information for heave, pitch, and roll motion is evaluated under self-powered operation. An objective function consisting of a weighted sum of performance measures, including root mean square values for accelerations, road holding, actuator travel, and power regeneration capability, is used to determine equivalent actuator damping values and controller gains that enhance self-powered operation. The resulting optimal designs for each control strategies are compared by means of frequency responses to evaluate their performance and power regeneration capability, as well as to determine the effect of self-powered operation on these characteristics. This investigation shows that the performance of a self-powered active suspension systems, based on heave, pitch, and roll motion information, can be optimized to approach that of an active suspension system with external power supply; the degree of degradation depends on the particular suspension controller and the design objectives that are adopted. The performance improvement compared to a suspension system designed using a quarter car model and a sky-hook controller is also presented.

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