Modeling and Design Optimization of Electromechanical Brake Actuator Using Eddy Currents

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (858 download)

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Book Synopsis Modeling and Design Optimization of Electromechanical Brake Actuator Using Eddy Currents by : Kerem Karakoc

Download or read book Modeling and Design Optimization of Electromechanical Brake Actuator Using Eddy Currents written by Kerem Karakoc and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel electromechanical brake (EMB) based on the eddy current principle is proposed for application in electrical vehicles. The proposed solution is a feasible replacement for the current conventional hydraulic brake (CHB) systems. Unlike CHBs eddy current brakes (ECBs) use eddy currents and their interaction with an externally applied magnetic field to generate braking torque. Due to their pure electrically controllable and contact free nature, ECBs have multiple advantages over the current CHB systems, such as faster response, reduced weight and number of components, ease of implementing various controllers (e.g., anti-lock braking), and reduced noise levels. However, the torque generated by a typical ECB at low speeds is insufficient to effectively and completely stop a moving vehicle. Therefore, an ECB is commonly used as an assistive brake to the CHB system in heavy vehicles, i.e. trains and trucks In order to overcome this shortcoming, the use of AC magnetic fields is proposed to realize a stand-alone ECB system in which sufficient braking torque can be generated at low speeds. To this end, eddy currents are modeled analytically using the governing Maxwell's equations with the consideration of time varying field application. The analytical model was validated using finite element analysis. Results show that the braking torque increases with the application of a time varying field. Various forms of time varying fields have been studied. It was found that thefrequency-modulated applied field in triangular waveform results in the highest braking torque. Next, the design was optimized to maximize the braking torque and an optimum configuration was obtained using multiple pole projection areas (PPAs). Optimization results show that the braking torque significantly increases with the introduction of additional PPAs to the configuration, and the braking torque generation for an optimum four-PPA ECB configuration exceeds the braking requirements for current passengervehicles. For control purposes, a dynamic model for a novel stand-alone ECB system using AC fields for automotive applications has been successfully designed and evaluated. Also, a model-based predictive controller has been developed for the optimum ECBconfiguration. Finally an experimental test-bed has been designed for experimentation of both DC and AC field application on ECB.

Modelling, Design Optimization and Control of Magneto Rheological Brakes for Automotive Applications

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ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (113 download)

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Book Synopsis Modelling, Design Optimization and Control of Magneto Rheological Brakes for Automotive Applications by : Hadi Shamieh

Download or read book Modelling, Design Optimization and Control of Magneto Rheological Brakes for Automotive Applications written by Hadi Shamieh and published by . This book was released on 2017 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The braking system is one of the major factors affecting a vehicle’s performance. The future of the automotive industry thrives by the creation of a greener, more efficient and lightweight braking mechanisms. Research on utilizing electromechanical brakes have shown potential due to their superior performance and controllability. The magnetorheological Brake (MRB) is a promising electromechanical brake which can provide variable damping through variation of the MR fluids’ apparent viscosity and yield strength using the applied magnetic field. Fast response time, low power requirement and large dynamic range are among unique features of MRBs making them an ideal candidate for vehicle applications. While some design configurations have been proposed for applying MRBs in the automotive industry, the commercial application has not yet been fully realized mainly due to the existence of their zero-field viscous torque. The focal purpose of this study is to propose and develop a novel real-size vehicle model of the MRB design with absolutely no energy loss in terms of viscous torque generation. The design is achieved using permanent magnets which force the MR fluid volume to shift locations between the brake’s operating modes – ‘on’ and ‘off’ – to allow complete de-coupling. The performance of the proposed design compared with the conventional design is demonstrated on a 2-disk-type MRB configuration. The Herschel-Bulkley constitutive model is adopted for the MR fluid to derive the mathematical equations governing the systems’ braking torques as a function of the rotational speed, geometric properties, and applied electrical current. The MR fluid selected for the proposed designs is MRF-132DG from Lord Corporation. Analytical magnetic circuit analysis of the MRB design has been conducted which allows to approximately derive the relation between the magnetic field intensity and the electric current as a function of number of coil turns and the brake’s geometric variables. The analytical model is then verified using an electromagnetic finite element model developed in open source FEMM software. An equation relating densities of the materials used in the MRB and their corresponding dimensions is also derived to estimate the weight of the proposed MRB. Subsequently, a multidisciplinary design optimization problem has been formulated to identify the optimal brake geometrical parameters to maximize the dynamic range of the MRBs under weight, size and magnetic flux density constraints. The optimization problem has been solved using Genetic Algorithm (GA) followed by the Sequential Quadratic Programming (SQP) technique implemented in the MATLAB environment to achieve the true global optimal design. It is shown that the proposed MRB design provides better performance specifications under the required design constraints while having zero viscous torque generation making it suitable for application in real commercial vehicles. Finally, a simple dynamic quarter-vehicle model integrated with the optimally designed MRB has been considered to investigate the brake performance in automotive application. A PID control scheme has been designed for optimal wheel slip control over different road surface conditions. The objective is to obtain the highest value possible for the road-friction coefficient. This is possible through regulating and maintaining the slip ratio to a desired value whether driving on dry, wet, snowy or icy roads. The controller is purposed to enhance the overall braking properties of a vehicle through reducing the stopping distance and time, enhancing stability, and avoiding wheel lockup.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 772 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Control of Hybrid Brake-by-Wire System for Autonomous Vehicle

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Publisher : Springer Nature
ISBN 13 : 9811689466
Total Pages : 155 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Design and Control of Hybrid Brake-by-Wire System for Autonomous Vehicle by : Donghai Hu

Download or read book Design and Control of Hybrid Brake-by-Wire System for Autonomous Vehicle written by Donghai Hu and published by Springer Nature. This book was released on 2022-01-22 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book establishes the models of the electric motor, the hydraulic compound brake system, and the electromagnetic and friction integrated brake system. Considering the two principles on safety and energy saving, it proposes a hybrid brake-by-wire system optimization design method and proposes the optimization method of braking force distribution in different braking modes. The methodology of the book is by using the common Lyapunov function to analyze the stability of the braking mode switching process and designs the braking mode switching controller of the hybrid braking system. The selection of materials provides readers with some guidance in the future design and control of hybrid drive-by-wire systems for autonomous vehicles

Design of a Magnetorheological Brake System Based on Magnetic Circuit Optimization

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (858 download)

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Book Synopsis Design of a Magnetorheological Brake System Based on Magnetic Circuit Optimization by : Kerem Karakoc

Download or read book Design of a Magnetorheological Brake System Based on Magnetic Circuit Optimization written by Kerem Karakoc and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional hydraulic brake (CHB) systems used in automotive industry have several limitations and disadvantages such as the response delay, wear of braking pad, requirement for auxiliary components (e.g. hydraulic pump, transfer pipes and brake fluid reservoir) and increased overall weight due to the auxiliary components. In this thesis, the development of a novel electromechanical brake (EMB) for automotive applications is presented. Such brake employs mechanical components as well as electrical components, resulting in more reliable and faster braking actuation. The proposed electromagnetic brake is a magnetorheological (MR) brake. The MR brake consists of multiple rotating disks immersed into an MR fluid and an enclosed electromagnet. When current is applied to the electromagnet coil, the MR fluid solidifies as its yield stress varies as a function of the magnetic field applied by the electromagnet. This controllable yield stress produces shear friction on the rotating disks, generating the braking torque. This type of braking system has the following advantages: faster response, easy implementation of a new controller or existing controllers (e.g. ABS, VSC, EPB, etc.), less maintenance requirements since there is no material wear and lighter overall weight since it does not require the auxiliary components used in CHBs. The MRB design process included several critical design steps such as the magnetic circuit design and material selection as well as other practical considerations such as cooling and sealing. A basic MRB configuration was selected among possible candidates and a detailed design was obtained according to a set of design criteria. Then, with the help of a finite element model (FEM) of the MRB design, the magnetic field intensity distribution within the brake was simulated and the results were used to calculate the braking torque generation. In order to obtain an optimal MRB design with higher braking torque generation capacity and lower weight, the key design parameters were optimized. The optimization procedure also consisted of the FEM, which was required to calculate the braking torque generation in each iteration. Two different optimization search methods were used in obtaining the minimum weight and maximum braking torque: (i) a random search algorithm, simulated annealing, was first used to find an approximate optimum design and (ii) a gradient based algorithm, sequential quadratic programming, was subsequently used to obtain the optimum dimensional design parameters. Next, the optimum MRB was prototyped. The braking performance of the prototype was tested and verified, and the experimental results were shown. Also, experimental results were compared with the simulation results. Due to the lack of accurate material property data used in the simulations, there were discrepancies between the experimental and the simulation results. Other possible sources of errors are also discussed. Since the prototype MRB generates much lower braking torque compared to that of a similar size CHB, possible design improvements are suggested ton further increase the braking torque capacity. These include the relaxation of the optimization constraints, introduction of additional disks, and the change in the basic magnetic circuit configuration.

Hysteresis Elimination and Design Optimization of Magnetorheological Brake Actuators for Haptics

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ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (824 download)

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Book Synopsis Hysteresis Elimination and Design Optimization of Magnetorheological Brake Actuators for Haptics by : Galip Ozan Erol

Download or read book Hysteresis Elimination and Design Optimization of Magnetorheological Brake Actuators for Haptics written by Galip Ozan Erol and published by . This book was released on 2012 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electrical & Electronics Abstracts

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ISBN 13 :
Total Pages : 1904 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Electrical & Electronics Abstracts by :

Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1904 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design of an Actuator Using Eddy Current Clutches and a High Speed Flywheel for Robot Applications

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ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (262 download)

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Book Synopsis Design of an Actuator Using Eddy Current Clutches and a High Speed Flywheel for Robot Applications by : Pablo Rodriguez

Download or read book Design of an Actuator Using Eddy Current Clutches and a High Speed Flywheel for Robot Applications written by Pablo Rodriguez and published by . This book was released on 1991 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling and Optimization of Fast-acting Electromagnetic Actuators

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ISBN 13 :
Total Pages : 183 pages
Book Rating : 4.:/5 (119 download)

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Book Synopsis Modeling and Optimization of Fast-acting Electromagnetic Actuators by : John Peter Karidis

Download or read book Modeling and Optimization of Fast-acting Electromagnetic Actuators written by John Peter Karidis and published by . This book was released on 19?? with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design of an Innovative Car Braking System Using Eddy Currents

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (858 download)

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Book Synopsis Design of an Innovative Car Braking System Using Eddy Currents by : David Jose Torres Cruz

Download or read book Design of an Innovative Car Braking System Using Eddy Currents written by David Jose Torres Cruz and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Design and Construction of an Eddy Current Brake

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ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (38 download)

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Book Synopsis The Design and Construction of an Eddy Current Brake by : Duncan S. Owler

Download or read book The Design and Construction of an Eddy Current Brake written by Duncan S. Owler and published by . This book was released on 1916 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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ISBN 13 :
Total Pages : 980 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1998 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives

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Publisher : John Wiley & Sons
ISBN 13 : 1119103444
Total Pages : 312 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives by : Marius Rosu

Download or read book Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives written by Marius Rosu and published by John Wiley & Sons. This book was released on 2017-12-18 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents applied theory and advanced simulation techniques for electric machines and drives This book combines the knowledge of experts from both academia and the software industry to present theories of multiphysics simulation by design for electrical machines, power electronics, and drives. The comprehensive design approach described within supports new applications required by technologies sustaining high drive efficiency. The highlighted framework considers the electric machine at the heart of the entire electric drive. The book also emphasizes the simulation by design concept—a concept that frames the entire highlighted design methodology, which is described and illustrated by various advanced simulation technologies. Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives begins with the basics of electrical machine design and manufacturing tolerances. It also discusses fundamental aspects of the state of the art design process and includes examples from industrial practice. It explains FEM-based analysis techniques for electrical machine design—providing details on how it can be employed in ANSYS Maxwell software. In addition, the book covers advanced magnetic material modeling capabilities employed in numerical computation; thermal analysis; automated optimization for electric machines; and power electronics and drive systems. This valuable resource: Delivers the multi-physics know-how based on practical electric machine design methodologies Provides an extensive overview of electric machine design optimization and its integration with power electronics and drives Incorporates case studies from industrial practice and research and development projects Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives is an incredibly helpful book for design engineers, application and system engineers, and technical professionals. It will also benefit graduate engineering students with a strong interest in electric machines and drives.

Handbook of Linear Partial Differential Equations for Engineers and Scientists

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Publisher : CRC Press
ISBN 13 : 1420035320
Total Pages : 800 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Handbook of Linear Partial Differential Equations for Engineers and Scientists by : Andrei D. Polyanin

Download or read book Handbook of Linear Partial Differential Equations for Engineers and Scientists written by Andrei D. Polyanin and published by CRC Press. This book was released on 2001-11-28 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following in the footsteps of the authors' bestselling Handbook of Integral Equations and Handbook of Exact Solutions for Ordinary Differential Equations, this handbook presents brief formulations and exact solutions for more than 2,200 equations and problems in science and engineering. Parabolic, hyperbolic, and elliptic equations with

Electric and Magnetic Fields

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Publisher : Springer Science & Business Media
ISBN 13 : 1461519616
Total Pages : 380 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Electric and Magnetic Fields by : R. Belmans

Download or read book Electric and Magnetic Fields written by R. Belmans and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the edited versions of the papers presented at the Second International Workshop on Electric and Magnetic Fields held at the Katholieke Universiteit van Leuven (Belgium) in May 1994. This Workshop deals with numerical solutions of electromagnetic problems in real life applications. The topics include coupled problems (thermal, mechanical, electric circuits), CAD & CAM applications, 3D eddy current and high frequency problems, optimisation and application oriented numerical problems. This workshop was organised jointly by the AIM (Association of Engineers graduated from de Montefiore Electrical Institute) together with the Departments of Electrical Engineering of the Katholieke Universiteit van Leuven (Prof. R. Belmans), the University of Gent (Prof. J. Melkebbek) and the University of Liege (Prof. W. Legros). These laboratories are working together in the framework of the Pole d'Attraction Interuniversitaire - Inter-University Attractie-Pole 51 - on electromagnetic systems led by the University of Liege and the research work they perform covers most of the topics of the Workshop. One of the principal aims of this Workshop was to provide a bridge between the electromagnetic device designers, mainly industrialists, and the electromagnetic field computation developers. Therefore, this book contains a continuous spectrum of papers from application of electromagnetic models in industrial design to presentation of new theoretical developments.

Introduction to Modeling and Control of Internal Combustion Engine Systems

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Publisher : Springer Science & Business Media
ISBN 13 : 3662080036
Total Pages : 303 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Introduction to Modeling and Control of Internal Combustion Engine Systems by : Lino Guzzella

Download or read book Introduction to Modeling and Control of Internal Combustion Engine Systems written by Lino Guzzella and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal combustion engines still have a potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. These goals can be achieved with help of control systems. Modeling and Control of Internal Combustion Engines (ICE) addresses these issues by offering an introduction to cost-effective model-based control system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed in the text and selected feedforward and feedback control problems are discussed. The appendix contains a summary of the most important controller analysis and design methods, and a case study that analyzes a simplified idle-speed control problem. The book is written for students interested in the design of classical and novel ICE control systems.

IEEE International Electric Machines and Drives Conference Record

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ISBN 13 :
Total Pages : 750 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis IEEE International Electric Machines and Drives Conference Record by :

Download or read book IEEE International Electric Machines and Drives Conference Record written by and published by . This book was released on 1997 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: