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Dissertations / Theses on the topic 'Half Car Model Suspension'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Jolicoeur, Marie-Pierre. "Model identification of a car suspension testbed for robust vibration control." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98974.

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Road irregularities are a source of structure-borne noise in a car cabin. An active suspension using an Hinfinity robust feedback controller is designed to reduce this vibration-induced noise. To define the control law on this suspension, a quarter-car suspension is first modeled through its resonance modes. Frequency responses are extracted from experimental measurements which are then curve-fitted to obtain the nominal model of the suspension and its parametric uncertainty. The vibration-induced noise in the frequency range 60-250 Hz is then reduced using robust feedback controllers. An Hinf

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2

Salem, Mahmoud. "Investigation of a non-linear suspension in a quarter car model." Thesis, Aston University, 2018. http://publications.aston.ac.uk/37523/.

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This thesis presents the study of a quarter car model which consists of a two-degree-of-freedom (2 DOF) with a linear spring and a nonlinear spring configuration. In this thesis, the use of non-linear vibration attachments is briefly explained, and a survey of the research done in this area is also discussed. The survey will show what have been done by the researches in this new field of nonlinear attachments. Also, it will be shown that this topic was not extensively researched and is a new type of research where no sufficient experimental work has been applied. As an application, a quarter c

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3

Allen, Justin Aaron. "Design of active suspension control based upon use of tubular linear motor and quarter-car model." Texas A&M University, 2008. http://hdl.handle.net/1969.1/86036.

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The design, fabrication, and testing of a quarter-car facility coupled with various control algorithms are presented in this thesis. An experimental linear tubular motor, capable of producing a 52-N force, provides control actuation to the model. Controllers consisting of two designs were implemented: a classical controller employing lead and lag networks and a state-space feedback design. Each design was extensively simulated to screen for receptiveness to actuation force limitations and robustness regarding the inexact tire modeling. The goal of each controller was to minimize the accelerati

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4

Fani, Mehran. "Fault diagnosis of an automotive suspension system." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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With the development of the embedded application and driving assistance systems, it becomes relevant to develop parallel mechanisms in order to check and to diagnose these new systems. In this thesis we focus our research on one of this type of parallel mechanisms and analytical redundancy for fault diagnosis of an automotive suspension system. We have considered a quarter model car passive suspension model and used a parameter estimation, ARX model, method to detect the fault happening in the damper and spring of system. Moreover, afterward we have deployed a neural network classifier to is

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5

Sa, Roberto Luis de. "Controle Skyhook aplicado a um modelo de suspensão hidropneumatica para carretas agricolas." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264386.

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Orientador: Pablo Siqueira Meirelles<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-07T01:26:23Z (GMT). No. of bitstreams: 1 Sa_RobertoLuisde_M.pdf: 2111156 bytes, checksum: 0673c52c0192cecc5142208203b6adfb (MD5) Previous issue date: 2006<br>Resumo: Este trabalho apresenta o desenvolvimento de um sistema de controle para um modelo de suspensão hidropneumática concebido para carretas agrícolas. A partir de um modelo não linear de um quarto de veículo com dois graus de liberdade foram implementados dois si

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6

Crivellaro, Cláudio. "Controle robusto de suspensão semi-ativa para caminhonetes utilizando amortecedores magneto-reológicos." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-09022009-140556/.

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A utilização de sistemas semi-ativos no controle de movimento e vibração vem crescendo muito nos últimos anos, e está se firmando como a opção mais econômica em muitas aplicações. Os sistemas de controle semi-ativos baseados em fluidos magneto-reológicos (MR) já são empregados no controle de vibrações desde máquinas de lavar a grandes pontes suspensas, e até mesmo no controle de vibração de edifícios sujeitos a abalos sísmicos. No controle de movimento, eles têm sido aplicados em aparelhos de fisioterapia, próteses de joelho humano e embreagens. No setor automobilístico, os sistemas semi-ativo

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7

Urban, Marek. "Návrh zavěšení kol Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417557.

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Tato práce se se zabývá návrhem kinematiky zavěšení kol obou náprav. Na základě analýz jízdních dat, multi-body simulací v softwaru Adams Car, simulací v Matlabu a analytických kalkulací v Mathcadu, je navržena řada změn s cílem zlepšit jízdní vlastnosti vozu Formule student, tyto změny jsou následně implementovány do CAD modelu vozu. Jednotlivé změny kinematiky náprav jsou provedeny na základě analýzy konkrétního problému, který se snaží řešit. Jednou z problematik je zástavbová náročnost systému odpružení a zavěšení zadních kol, zde je cílem snížit hmotnost, výšku těžiště a moment setrvačnos

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8

Gellner, Pavel. "Měření sil působících za jízdy mezi kolem a vozovkou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417508.

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The diploma thesis is focused on the measurement of forces acting between the tire and the road. There is an outline of tire and tire models problematic in the opening part. In the following part, the rear right suspension of the formula student car was mounted with strain gauges and the data logging system was described. There is also a multi-body model of the rear axle created in Adams/Car and SAMS software, that is able to calculate forces acting between the tire and the road, taking the measured forces in the suspension, rocker position, and throttle position into consideration. After a se

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9

Ekoru, John. "Intelligent model predictive/feedback linearization control of half-car vehicle suspension systems." Thesis, 2013. http://hdl.handle.net/10539/12330.

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There exists a level of parametric uncertainty in dynamic systems which if left unaccounted, could impact negatively on performance during implementation. This thesis aims to investigate the e ect of acceptably bounded uncertainty, on the performance of Vehicle Suspension Systems (VSS) in the presence of model constraints. The uncertain parameters selected in this work are vehicle sprung mass loading, vehicle forward velocity, suspension spring sti ness coe cients and suspension damper coe cients. A model of a nonlinear, 4 Degree-of-Freedom (DOF) half-car Active Vehicle Suspension Syste

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10

CHIHCHUNG, CHEN, and 陳志忠. "Force Control Scheme of Active Suspension System with a Quarter Car and a Half Car Models." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/66470564803872760635.

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碩士<br>國立清華大學<br>動力機械工程學系<br>87<br>With a quarter car model and a half car model, a novel control schemes is proposed for force control in active suspension design by modifying Linear Quadratic Regulator (LQR) theory on frequency domain. The conventional LQR theory is applied to design the body and the tire position tracking ability with respect to road surface. For the LQR theory not capable of directly designing the controllers for the system transient response, the proposed controllers are sequentially modified around the resonant frequency of system transfer function to satisfy the ride c

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11

Mahala, Manoj Kumar. "Advanced Numerical Approaches for Analysis of Vehicle Ride Comfort, Wheel Bearings and Steering Control." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3751.

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Suspension systems and wheels play a critical role in vehicle dynamics performance of a car in areas such as ride comfort and handling. Lumped parameter models (LPMs) are commonly used for assessing the performance of vehicle suspension systems. However, there is a lack of clarity with regard to the relative capabilities of different LPM configurations. A comprehensive comparative study of three most commonly used LPMs of increasing complexity has been carried out in the current work. The study reported here has yielded insights into the capabilities of the considered LPMs in predicting respon

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12

Mahala, Manoj Kumar. "Advanced Numerical Approaches for Analysis of Vehicle Ride Comfort, Wheel Bearings and Steering Control." Thesis, 2015. http://etd.iisc.ernet.in/2005/3751.

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Suspension systems and wheels play a critical role in vehicle dynamics performance of a car in areas such as ride comfort and handling. Lumped parameter models (LPMs) are commonly used for assessing the performance of vehicle suspension systems. However, there is a lack of clarity with regard to the relative capabilities of different LPM configurations. A comprehensive comparative study of three most commonly used LPMs of increasing complexity has been carried out in the current work. The study reported here has yielded insights into the capabilities of the considered LPMs in predicting respon

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13

Wu, Sang-Feng, and 吳尚峰. "Grey PID controller Design of half-car suspension system." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/00134461849710101175.

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碩士<br>國立交通大學<br>電機與控制工程系所<br>93<br>New control algorithm for the half-car suspension system is presented . The new proposed control , called “Grey PID Control” , includes : Grey Prediction and PID Control .In this thesis , the Grey Prediction is introduced to the PID Controller . Grey Prediction would predict the vibration of the car . The predicted information is sent to the PID Controller in order to reduce vibrations of car . Simulation results show that the proposed algorithm could reduce the vibration of the car than that without predictable PID controller .

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14

Chen, Jiun-Hau, and 陳俊豪. "Optimal Fuzzy Controller Design of Half-Car Active Suspension Systems." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/71847017241913189834.

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碩士<br>國立交通大學<br>電機與控制工程系<br>91<br>The optimal fuzzy controller of a nonlinear active suspension system is designed based on the Takagi-Sugeno (T-S) fuzzy model. There are two ways to obtain the T-S fuzzy model. First, we can convert the mathematical model of the half-car suspension system into a T-S fuzzy model directly. Second, we can use a six layer modified self-constructing neural fuzzy inference network (modified SONFIN) to generate its T-S fuzzy model. With proper input and output data of the half-car suspension system for training, the modified SONFIN can dynamically increase the number

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15

CHEN, YANG-YI, and 陳泱億. "Sliding-mode-based competitive controller design for half-car active suspension system." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/51439869398202326864.

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碩士<br>中州科技大學<br>工程技術研究所<br>99<br>This dissertation is first to establish the dynamic model of half-car active suspension system, and next to design the sliding mode controller for the proposed suspension system, so that the superior performances can be obtained. Simultaneously, this research also presents the fuzzy controller and the PID controller to be compared with the sliding mode controller. After theory analysis and derivations, we use numerical Matlab software to simulate the three suspension control systems. From simulation results, the superior results of the proposed controller can b

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16

Cheng, Chia-Ping, and 鄭嘉斌. "Intelligent Active Suspension Controllers for Full-Car Model." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/20627652789826896412.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>97<br>The main theme of this thesis is to design the observer for the full-car intelligent controllers of the active suspension system to improve the ride comfort and reduce the suspension deflection. The proposed fuzzy logic control (FLC), sliding mode control (SMC), fuzzy sliding-mode control (FSMC) and EP-based fuzzy control can decrease the suspension deflection and improve the ride comfort of the passengers. The observer of the full-car model of an automobile is first examined with using the measured outputs in this thesis. The stability property of the fuzzy

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17

Wang, Song-Chi, and 王嵩祁. "Semi-active suspesion design of a half-car model." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/49142668052216802415.

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18

Hsu, Kai-Wei, and 許愷蔚. "Design and Control of a Novel Active Vehicle Suspension for a Quarter Car Model." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/00758072821724839311.

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碩士<br>龍華科技大學<br>工程技術研究所<br>102<br>This thesis aimed to design and control of a novel active vehicle suspension for a quarter-car model. The test bench mainly consists of two MacPherson suspension components, one pneumatic cylinder, and one pneumatic muscle based active suspension. The pneumatic cylinder is used to produce the desired simulation of bumpy road surfaces. This thesis used the PID(Proportional Integral Differential) model system, to design an PID mode controller of the pneumatic-muscle active vehicle suspension system. The controller design was practically applied to the system. To

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19

GARG, NAMAN. "INTELLIGENT CONTROL OF ACTIVE SUSPENSION FOR 2 DOF AND 3 DOF QUARTER CAR MODEL." Thesis, 2017. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15956.

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Suspension system plays most significant role in supporting the vehicle weight and isolating vehicle body from road shocks and vibrations. The aim of suspension system is to suppress uncomforting situations from road unevenness to driver and passengers and to provide road handling and stability of vehicles. The aim of this research work is to design different types of active controller for active suspension system. By using mathematical modelling 2 DOF and 3 DOF quarter car model are designed. The objective is to determine a control strategy to achieve better road quality and ride comfor

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