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Статті в журналах з теми "Motor vehicles Australia Design and construction"
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Seeger, B. R. "Wheelchair occupant restraints in motor vehicles." Prosthetics and Orthotics International 15, no. 1 (April 1991): 51–54. http://dx.doi.org/10.3109/03093649109164275.
Повний текст джерелаАнотація:
The issue of safety for wheelchair users in motor vehicles has been raised in Australia by parents of young people with disabilities. Investigations revealed that wheelchair users were not covered by any legislated safety requirements, and each case received special dispensation from compliance with regulations covering the able-bodied population. Dynamic testing of restraint systems at the University of Michigan had revealed that existing systems were unsafe. Dynamic tests confirmed those findings on systems used at that time in Australia. Testing led to the design, development and marketing of a new wheelchair occupant and restraint system which remains a system of choice for use by organisations where the same people use the same buses in the same position each day. Australian Standard 2942-1987, Wheelchair Occupant Restraint Assemblies for Use in Motor Vehicles, has since been developed. It establishes design and performance requirements for these restraints and includes details of dynamic testing procedures. This paper describes the development of the above restraint system and the subsequent Australian Standard.
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Maulana, Febryan. "KONSEP DESAIN KENDARAAN LISTRIK RODA TIGA RAMAH LINGKUNGAN." Majalah Ilmiah Pengkajian Industri 10, no. 2 (April 30, 2018): 107–16. http://dx.doi.org/10.29122/mipi.v10i2.141.
Повний текст джерелаАнотація:
Dalam penelitian  ini dirancang sebuah kendaraan listrik roda tiga dengan menggunakan metode VDI (Verein Duetscher Ingeniure). Perancangan kendaraan listrik ini terfokus pada desain kontruksi rangka dan perhitungan kebutuhan motor listrik yang sesuai sebagai elemen utama kendaraan listrik. Dalam perancangan kendaraan listrik roda tiga terdapat 3 varian dan berdasarkan nilai evaluasi varian yang paling tinggi adalah varian 2 dengan nilai 0,05. Kendaraan roda tiga mempunyai dimensi panjang 2500 mm, lebar 1250 mm, tinggi 1400 mm dengan tingkat kestabilan 46%.Setelah dilakukan analisa dan pengujian terhadap kontruksi rangka yang menggunakan bahan S45C, maka dapat diketahui bahwa kontruksi rangka ini mampu menahan beban sebesar 250 kg. Dan  dengan spesifikasi motor listrik 5 Kw yang dibutuhkan pun tersedia di pasar, sehingga memungkinkan kendaraan listrik roda tiga ini untuk dikembangkan lebih lanjut.In this study will be designed a three-wheeled electric vehicle using the VDI (Verein Duetscher Ingeniure). The design of electric vehicles is focused on the design and calculation of required construction frame corresponding electric motor as the main element of the electric vehicle. In the design of three-wheeled electric vehicles, there are 3 variants and variants based on the value of the highest evaluation is a variant 2 with a value of 0.05. Three-wheeled vehicle has dimensions of length 2500 mm, width 1250 mm, height 1400 mm with a 46% degree of stability.After analysis and testing of construction materials using S45C frame, it can be seen that the frame construction can support the weight of 250 kg. And with a 5 Kw electric motor specifications required is available in the market, thus allowing the three-wheeled electric vehicles to be developed further.Dalam penelitian  ini dirancang sebuah kendaraan listrik roda tiga dengan menggunakan metode VDI (Verein Duetscher Ingeniure). Perancangan kendaraan listrik ini terfokus pada desain kontruksi rangka dan perhitungan kebutuhan motor listrik yang sesuai sebagai elemen utama kendaraan listrik. Dalam perancangan kendaraan listrik roda tiga terdapat 3 varian dan berdasarkan nilai evaluasi varian yang paling tinggi adalah varian 2 dengan nilai 0,05. Kendaraan roda tiga mempunyai dimensi panjang 2500 mm, lebar 1250 mm, tinggi 1400 mm dengan tingkat kestabilan 46%.Setelah dilakukan analisa dan pengujian terhadap kontruksi rangka yang menggunakan bahan S45C, maka dapat diketahui bahwa kontruksi rangka ini mampu menahan beban sebesar 250 kg. Dan  dengan spesifikasi motor listrik 5 Kw yang dibutuhkan pun tersedia di pasar, sehingga memungkinkan kendaraan listrik roda tiga ini untuk dikembangkan lebih lanjut.In this study will be designed a three-wheeled electric vehicle using the VDI (Verein Duetscher Ingeniure). The design of electric vehicles is focused on the design and calculation of required construction frame corresponding electric motor as the main element of the electric vehicle. In the design of three-wheeled electric vehicles, there are 3 variants and variants based on the value of the highest evaluation is a variant 2 with a value of 0.05. Three-wheeled vehicle has dimensions of length 2500 mm, width 1250 mm, height 1400 mm with a 46% degree of stability.After analysis and testing of construction materials using S45C frame, it can be seen that the frame construction can support the weight of 250 kg. And with a 5 Kw electric motor specifications required is available in the market, thus allowing the three-wheeled electric vehicles to be developed further.
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Yan, Ge. "Operation Concept and Mode Selection Design of Public Parking Lot." Academic Journal of Science and Technology 3, no. 2 (October 28, 2022): 209–13. http://dx.doi.org/10.54097/ajst.v3i2.2175.
Повний текст джерелаАнотація:
With the continuous improvement of urban economic development and modernization, the number of motor vehicles has shown a sharp increase in recent years. At the same time, the construction of public parking lots is very backward, and parking spaces are seriously insufficient, leading to increasingly serious problems, such as urban traffic congestion and insufficient parking spaces. The management mode of public parking lot is backward, which is not conducive to the improvement of parking efficiency and may have a negative impact on traffic. This paper mainly analyzes the difference in the management concept of public parking places for social vehicles, and then investigates and analyzes the reasons for poor management and lagging construction of public parking places, and puts forward suggestions to improve the current public parking places.
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Li, Xi Qin, De Yu Song, and Bing Liu. "Design of Transmission Endurance Tester with Electric Energy Recycle Technology." Key Engineering Materials 467-469 (February 2011): 652–55. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.652.
Повний текст джерелаАнотація:
Endurance test of vehicle transmission usually takes long time and spends a lot of electric energy. In order to save energy, a new kind of transmission endurance tester equipped with a DC brake motor and a digital DC reversible speed governor is developed. The tester can transfer electricity generated by the brake motor back into the electric grid. The experiment result shows that the average ratio of electricity recycle is as high as 68 percent. The tester can be used for transmission endurance test of various kinds of construction machineries and vehicles.
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Minh, D. B., V. D. Quoc, and P. N. Huy. "Efficiency Improvement of Permanent Magnet BLDC Motors for Electric Vehicles." Engineering, Technology & Applied Science Research 11, no. 5 (October 12, 2021): 7615–18. http://dx.doi.org/10.48084/etasr.4367.
Повний текст джерелаАнотація:
A permanent magnet Brushless DC (BLDC) motor has been designed with different rotor configurations based on the arrangement of the permanent magnets. Rotor configurations strongly affect the torque and efficiency performance of permanent magnet electric motors. In this paper, different rotor configurations of the permanent magnet BLDC motor with parallel the Halbach array permanent magnet were compared and evaluated. Many applications of electric drives or air-crafts have recently preferred the surface-mounted permanent magnet design due to its ease of construction and maintenance. The finite element technique has been used for the analysis and comparison of different geometry parameters and rotor magnet configurations to improve efficiency and torque performance. A comprehensive design of a three-phase permanent magnet BLDC 35kW motor is presented and simulations were conducted to evaluate its design. The skewing rotor and Halbach magnet array are applied to the permanent surface-mounted magnet on the BLDC motor for eliminating torque ripples. In order to observe the skewing rotor effect, the rotor lamination layers were skewed with different angles and Halbach sinusoidal arrays. The determined skewing angle, the eliminated theoretically cogging torque, and the back electromotive force harmonics were also analyzed.
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Hryciów, Zdzisław. "The safety of wheelchair occupants in motor vehicles." Archives of Automotive Engineering – Archiwum Motoryzacji 97, no. 3 (October 5, 2022): 5–13. http://dx.doi.org/10.14669/am/155001.
Повний текст джерелаАнотація:
Ensuring the free movement of disabled people, including the use of vehicles, is a fundamental right. Therefore, efforts should be made to draw up standards regulating both organisational and technical aspects related to the construction and testing of wheelchairs. The main purpose of the paper is a review the literature related to wheelchair transport safety and the current standards for wheelchair crash testing Wheelchair users must securely and safely attach their wheelchair to the vehicle when travelling. The most common methods include securing with a four-belt system or using docking systems. Docking systems allow the disabled person to restrain the wheelchair themselves. Their main limitation is the lack of standardisation. Issues related to in-vehicle wheelchair design and testing are mainly described in international ISO standards and, in the US, in ANSI standards. Not all wheelchairs are crash tested. Before using wheelchairs, it should be checked if they can be mounted in a car. An important issue is education of wheelchair users and their carers on proper wheelchair securing. Even when wheelchairs are effectively secured, occupants in wheelchairs could be seriously and fatally injured because of improperly used and positioned belt restraints.
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S, Shivakumar, Mohammed Yahya Dil, and Sathyanarayana. "Design and Construction of Air Compressed Vehicle with Integration of Radio Control." International Journal for Research in Applied Science and Engineering Technology 11, no. 1 (January 31, 2023): 370–73. http://dx.doi.org/10.22214/ijraset.2023.48580.
Повний текст джерелаАнотація:
Abstract: Air compressed vehicle as it is popularly known has caught the attention of researchers worldwide and is ideal for city driving conditions. Motor development international (MDI) is a French company thatholds international patent for compressed air operated vehicles. Even though it seems to be an eco-friendly solution, one must consider its well to wheel efficiency. While computing the overall efficiency of an air compressed vehicle, the electricity requirement for compressing air has to be considered. Nevertheless, the compressed air vehicle will contribute to reducing air pollution in longer run.
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Kaňuch, Ján, and Želmíra Ferková. "Design and simulation of disk stepper motor with permanent magnets." Archives of Electrical Engineering 62, no. 2 (June 1, 2013): 281–88. http://dx.doi.org/10.2478/aee-2013-0022.
Повний текст джерелаАнотація:
Abstract In this paper the design and the magneto-static simulation of axial-flux permanent- magnet stepper motor with the disc type rotor is presented. Disk motors are particularly suitable for electrical vehicles, robots, valve control, pumps, centrifuges, fans, machine tools and manufacturing. The brushless machine with axial flux and permanent magnets, also called the disc-type machine, is an interesting alternative to its cylindrical radial flux counterpart due to the disk shape, compact construction and high torque density. This paper describes a design of four phase microstepping motor with the disc type rotor. The FEM modeling and the 3D magneto-static simulation of the disk stepper motor with permanent magnets is being subject of the article, too. Disc rotor type permanent magnet stepper motor for high torque to inertia ratio is ideal for robotics and CNC machines.
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Ning, Donghong, Shuaishuai Sun, Jiawei Zhang, Haiping Du, Weihua Li, and Xu Wang. "An active seat suspension design for vibration control of heavy-duty vehicles." Journal of Low Frequency Noise, Vibration and Active Control 35, no. 4 (November 17, 2016): 264–78. http://dx.doi.org/10.1177/0263092316676389.
Повний текст джерелаАнотація:
This paper presents the design, fabrication and testing of an innovative active seat suspension system for heavy-duty vehicles. Rather than using conventional linear actuators, such as hydraulic cylinders or linear motors, which need to be well maintained and are always expensive when high force outputs are required, the proposed seat suspension system directly applies a rotary motor in order to provide the required active actuation, without changing the basic structure of the existing off-the-shelf seat suspension. A gear reducer is also applied to amplify the output torque of the motor so that a high output torque can be achieved using a low rated power motor. A static output feedback [Formula: see text] controller with friction compensation is designed to actively reduce seat vibration. Experiments are carried out to test the fabricated suspension prototype. The experimental results show that this type of seat suspension can achieve greater ride comfort in the frequency range of 2–6 Hz than a passive seat suspension. The newly designed active seat suspension is much more cost effective and can be suitable for heavy-duty vehicles.
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Sukharev, R. Yu. "Pure pursuit method use to control unmanned motor grader." Russian Automobile and Highway Industry Journal 19, no. 2 (May 19, 2022): 156–69. http://dx.doi.org/10.26518/2071-7296-2022-19-2-156-169.
Повний текст джерелаАнотація:
Introduction. A relevant objective of implementing the advanced systems of self-driving road construction vehicles can be accomplished by mathematical modelling. One of the important issues when creating a motion control system for a self-driving vehicle is to develop a trajectory following algorithm. The most well-known method of following the trajectory is a pure pursuit method, which is successfully used to control the movement of mobile robots.Materials and methods. Hence, the research objective has been defined and is to adapt the pure pursuit method to control an autonomous grader. To achieve the research objective, the task of a mathematical model of the motor grader movement with front steering wheels has been developed, and a mathematical model of the motor grader motion control system has been compiled. Besides, we propose an integral criterion to evaluate the efficiency of the motion control system of a unmanned grader. Some theoretical studies of the mathematical model have been carried out and the dependencies of the integral criterion on the design and operational parameters of the grader, as well as on the parameter of the control method (visibility range) have been obtained. Moreover, the optimal values of the visibility range for various values of the base length, base coefficient and machine speed have been defined according to the proposed efficiency criterion.Results. As a result of approximating the obtained optimal values, the pure pursuit method has been modified to control a self-driving motor grader, taking into account its design features and travel speed. The results obtained can be used to create the prototypes of unmanned control systems for road construction vehicles.
Дисертації з теми "Motor vehicles Australia Design and construction"
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Han, Lin 1982. "A comparison of permanent magnet motor structures for traction drive applications in hybrid electric vehicles /." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116015.
Повний текст джерелаАнотація:
This thesis presents a detailed comparison of the torque-speed characteristics of three permanent magnet synchronous machine designs based on how the magnets are mounted. The machines investigated are an interior permanent magnet machine, an interior-rotor surface-mounted machine and an exterior-rotor surface-mounted machine. They are designed for traction drives in hybrid electric vehicles. Two sets of comparisons based on the same machine volume and starting torque are performed. Important issues, such as machine mass and cost, cogging torque, and flux-weakening capability are addressed. Computer simulations were performed to estimate their performances and the results are presented. Design guidelines and tradeoffs of their performances are extracted from the simulation results. Relative strengths and limitations of different PM machine types are highlighted.
2
Buchmann, Macro. "Advanced monitoring system for bolted connections in vehicle construction." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1417.
Повний текст джерелаАнотація:
Bolted connections where used from the beginning of vehicle construction for joining two or more parts. The reliability of bolted connections is still a major problem. The objective of this research thesis is focused on an advanced monitoring system for bolted connections in vehicle construction. A mechanical “vibrating test bench”, which was developed by the aeronautical engineer Mr. Junkers, is being adapted, to suite the requirements of the automotive industry. It is designed according to DIN 65151 standards. The bolted connection is tightened to a specific torque to achieve the required preload forces and then exposed to an oscillating elastic shear force. The preload force and their loss are measured in relation to the number of load cycles. The ideal locking mechanism would be, if no settling occurs. Realistic in practice is the remaining of a sufficient preload force which doesn’t decry with time. The aim of this thesis is, to gain knowledge that will assist in the future control of the bolt locking procedure. The test bench can be used to verify the clamping capability of a bolted connection. With the dynamic computer-aided test system it will also be possible to test critical bolted joints and their safety, which reduces the probability of costly product recalls, or even severe cases of failure.
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Morrissey, Bryan L. (Bryan Lawrence). "The design and construction of electronic motor control and network interface hardware for advance concept urban mobility vehicles." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45376.
Повний текст джерелаАнотація:
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.Includes bibliographical references (leaf 25).
Over the past several years, the Smart Cities Group at MIT's Media Lab has engaged in research to develop several advanced concepts for vehicles to improve urban mobility. This research has focused on developing a modular vehicle architecture, centered around the concept of the self-contained Wheel Robot. The goal is to develop Wheel Robot systems in which all power, transmission, suspension, and steering functions are incorporated into self-contained units with a simple, standardized interface providing for mechanical mounting, electrical power distribution, and access to the vehicle control network. This thesis outlines my research and design work implementing several electronic power and control systems that contribute to ongoing Wheel Robot development efforts. The designs for a high-current motor controller and two electronic sensing and control interfaces are described, and several strategies for further control systems development are proposed.
by Bryan L. Morrissey.
S.B.
4
Dingle, Matthew, and mikewood@deakin edu au. "Elastic behaviour in mechanical draw presses." Deakin University. School of Engineering and Technology, 2001. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051017.150247.
Повний текст джерелаАнотація:
This thesis explores the elastic behaviour of the mechanical double action press and draw die system commonly used to draw sheet metal components in the automotive industry. High process variability in production and excessive time spent in die try-out are significant problems in automotive stamping. It has previously been suggested that the elastic behaviour of the system may contribute to these problems. However, the mechanical principles that cause the press system to affect the forming process have not been documented in detail. Due to a poor understanding of these problems in industry, the elasticity of the press and tools is currently not considered during the die design. The aim of this work was to explore the physical principles of press system elasticity and determine the extent to which it contributes to problems in try-out and production. On the basis of this analysis methods were developed for controlling or accounting for problems during the design process.
The application of frictional restraining force to the edges of the blank during forming depends on the distribution and magnitude of the clamping force between the binders surfaces of the draw die. This is an important control parameter for the deep drawing process. It has been demonstrated in this work that the elasticity of the press and draw die can affect clamping force in two ways. The response of the press system, to the forces produced in the press during forming, causes the magnitude of clamping force to change during the stroke. This was demonstrated using measured data from a production press. A simple linear elastic model of the press system was developed to illustrate a definite link between the measured force variation and the elasticity of the press and tools. The simple model was extended into a finite element model of the complete press system, which was used to control a forming simulation. It was demonstrated that stiffness variation within the system could influence the final strains in a drawn part. At the conclusion of this investigation a method is proposed for assessing the sensitivity of a part to clamping force variation in the press during die design. A means of reducing variation in the press through the addition of a simple linear spring element is also discussed.
The second part of the work assessed the influence of tool structure on the distribution of frictional restraining forces to the blank. A forming simulation showed that tool stiffness affects the distribution of clamping pressure between the binders. This was also shown to affect the final strains in a drawn part. However, the most significant influence on restraining force was the tendency of the blank to increase in thickness between the binders during forming. Using a finite element approximation of the try-out process it was shown that the structure of the tool would also contribute to the problems currently experienced in try-out where uneven contact pressure distributions are addressed by manually adjusting the tool surfaces.
Finally a generalised approach to designing draw die structures was developed. Simple analysis methods were combined with finite element based topology optimisation techniques to develop a set of basic design guidelines. The aim of the guidelines was to produce a structure with uniform stiffness response to a pressure applied at the binder surface.
The work concludes with a recommendation for introducing the methods developed in this thesis into the standard production process.
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Oliveira, Leonardo Presoto de. "Uma abordagem interativa para auxiliar no diagnóstico automotivo." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/3133.
Повний текст джерелаАнотація:
Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do ParanáEste trabalho tem como objetivo desenvolver uma abordagem para auxiliar as montadoras na obtenção de informações sobre os problemas e falhas que ocorrem nos veículos durante o seu uso pelos motoristas, relacionando os dados obtidos com a leitura da telemetria do veículo, assim como as percepções do motorista sobre uma determinada falha. A exploração de técnicas que auxiliam o diagnóstico automotivo é um problema a ser discutido na engenharia. As técnicas de diagnóstico devem fornecer suporte à grande gama de sistemas que surgirão nos próximos anos. Assim, é possível também utilizar a conectividade que os celulares e veículo dispõem na atualidade, com o intuito de evoluir o produto oferecido e melhorar a experiência do cliente enquanto dirige. A inclusão do cliente no processo de diagnóstico, visa permitir que os projetistas identifiquem pontos que podem ser melhorados no carro, mesmo que não apresentem erro aparente. A opinião do cliente pode ser considerada, uma vez que ele é incluído no processo como um novo “sensor" (o mais inteligente e importante de todos) capaz de reportar suas percepções. Considerando este fato, a motivação deste trabalho se encontra em: (i) Procurar alternativas para aplicar de maneira eficiente a conectividade dos veículos no processo de diagnóstico; (ii)Permitir que as montadoras possam obter informações mais concretas dos veículos que comercializam. O objeto é fornecer um sistema de interface entre o usuário e o carro auxiliando a realização dos diagnósticos preventivos mais completos do que apenas usando a telemetria. Neste projeto busca-se que haja uma interação maior com o motorista, e que a experiência das montadoras possa entrar no processo de diagnóstico. Mesmo que o cliente não tenha tanta intimidade com o funcionamento do veículo, o sistema deve orientar o motorista no processo. A entrada de dados do cliente é realizada por texto ou comando de voz. Para a análise desta entrada de dados do cliente foi realizado um estudo de mineração de dados em bases que a montadora já possuía. Estas bases são entrevistas telefônicas nas quais a montadora pergunta ao cliente problemas percebidos no carro, e então as respostas são transcritas para a base. O estudo de mineração de dados foi realizado para a criação do classificador que é responsável por receber os dados de entrada do cliente e classifica-lo em um determinado problema ligado à multimídia ou relacionado ao motor do veículo. O software contido no celular será responsável por solicitar ao sistema de sensores do veículo as leituras necessárias para que o cliente obtenha as informações que deseja. Foi realizado um experimento no qual analistas de diagnóstico responderam a um questionário que buscava analisar se o sistema proposto realmente influenciava no processo de diagnóstico, fazendo com que a solução dos problemas no veículo seja realizada em menos etapas, se comparado com o processo atual. Os resultados mostraram que a abordagem diminuiu o número de etapas necessárias para a obtenção do diagnóstico correto. Dos três estudos de caso realizados, as etapas necessárias para se chegar ao diagnóstico apropriado diminuiu em uma etapa para o primeiro estudo de caso, diminuiu uma etapa para o segundo estudo de caso, e três etapas a menos para o terceiro estudo de caso. Com estes resultados foi possível demonstrar que a abordagem proposta influiu no processo de diagnóstico aplicado atualmente pelas montadoras e concessionárias analisadas.
The goal of this project is to develop an approach to assist automakers in obtaining information about the problems and failures that occur in the vehicles during their use by drivers, relating the data obtained by reading the telemetry of the vehicle, as well as the perceptions of the driver about a particular failure. The exploration of techniques to optimize automotive diagnosis is a problem to be discussed in Engineering. Diagnostic techniques should support the wide range of systems that will emerge in the coming years. Thus, it is also possible to use the connectivity that mobile phones and vehicles have today, in order to evolve the product offered and improve the customer experience while driving. The customer inclusion in the diagnostic process aims to allow engineers identifies points to be improved in the car, even if they dont present an apparent error. The customer opinion should be considered, since he/she is included in the process as a new "sensor"(the most intelligent and important of all) able to report his/her perceptions. Considering this fact, the motivation of this research is: (i) search for alternatives to efficiently apply vehicle connectivity in the diagnostic process, (ii) enable automakers to obtain more concrete information on the vehicles they sell. The object is provide an interface between the user and the car helping them to perform a more complete preventive diagnoses than only using telemetry. In this project it is sought that there is a greater interaction with the driver, and the experience of the automakers could be included the diagnostic process. Even if the customer isnt so accustomed with the operation of the vehicle, the system must guide the driver by the process. The customer input data is performed by text or voice command. The analysis of this customer input data, a data mining study was performed based on a base that automaker already had. These bases are telephone interviews in which the automaker asks the customer for perceived problems in the car, and then the answers are transcribed to the base. The data mining study was performed to create one classifier which was responsible for receiving the input data from the customer and sorting it into a particular problem related with the multimídia or related to the motor of the vehicle. The software contained in the mobile phone will be responsible asking to the vehicle sensor system for the readings necessary for the customer can to obtain the information he/she wants. An experiment was carried out in which diagnostic analysts answered a questionnaire that sought to analyze whether the proposed system actually influenced the diagnostic process, so the solution of the problems in the vehicle was performed on less steps compared to the current process. The results showed the approach reduced the number of steps required to obtain the correct diagnosis. Of the three case studies performed, the steps required to arrive at appropriate diagnosis decreased in one step to the first case study, one step to the second case study decreased, and three less steps to the third case study . With these results it was possible to demonstrate that the proposed approach influenced the diagnostic process currently applied by the automakers and concessionaires analyzed.
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"The independent steering and driving vehicle: design, energy efficiency and parking analysis." Thesis, 2010. http://library.cuhk.edu.hk/record=b6075244.
Повний текст джерелаАнотація:
After describing the development of the ISDV, this thesis studies the energy management which can improve the energy efficiency. It is shown that the traditional electric vehicle (EV) is not capable of managing the energy required for one driving cycle because it has only a single traction motor. This thesis proposes and examines a new way to manage electrical energy in which torque is distributed among different in-wheel motors to achieve a higher level of overall energy efficiency, which has been enhanced and demonstrated in various driving cycles.Thereafter, the thesis studies two aspects of benefits the ISDV can bring to parking. One is in space efficiency, defined as the ratio of the total space occupied by the vehicle in its final parked state over the whole area covered by the parking lot. Comparison of the ISDV and traditional vehicles in parking proves that the ISDV afford a higher level of space efficiency. The other aspect is the parking time. It is tested experimentally in the hardware-in-loop (HIL) system, and the motions of traditional vehicles, the zero radius turning motion, and the free motion of the ISDV are compared. The less time for parking demonstrates the easiness to steer the ISDV.
Throughout the history of human civilization, vehicles have played a significant role by connecting people in various locations. They have thus boosted the progress of civilization and made our lives more convenient. However, as the number of vehicles on the road has increased, the convenience, which vehicles provide, has gradually turned into inconvenience in three respects: 1) the energy consumed by vehicles accounts for a large proportion of total energy consumption, which is in an ever-increasing trend; 2) more parking space is needed, a significant proportion of which is not for parking itself but for enabling the vehicle to be navigated to its final parking slot; 3) the effort required to park a car is also troublesome, causing the driver to spend much more time in a crowded parking lot.
To alleviate these three problems, I develop a methodology to design an independent steering and driving vehicle (ISDV). It brings together the robotic technologies of steer-by-wire, drive-by-wire, four-wheel-independent-steering, and four-wheel-independent-driving. All four wheels of the ISDV can be steered independently, so that vehicle rotation and translation can be decoupled from each other. Omni-directional motions such as zero radius turning (ZRT) and lateral parking (LP) are realized, thereby enhancing the agility of the vehicle. In contrast with omni-directional wheeled mobile robots, this vehicle is targeted at serving as a human carrier or even as a vehicle carrier in the future.
Qian, Huihuan.
Adviser: Yangsheng Xu.
Source: Dissertation Abstracts International, Volume: 73-03, Section: B, page: .
Thesis (Ph.D.)--Chinese University of Hong Kong, 2010.
Includes bibliographical references (leaves 149-159).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstract also in Chinese.
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Chantler, Jonathan. "An investigation into the effectiveness of dynamic section control (inspection and rework) on the quality of the 3-series from the assembly plant at BMW (South Africa) (PTY.) Ltd." Thesis, 1996. http://hdl.handle.net/10539/22400.
Повний текст джерелаАнотація:
A project report submitted to the Faculty of Engineering, University of the
Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the degree
of Master of Science in Engineering. Johannesburg, 1996.This research project is an investigation into the effectiveness of an inspect and rework system called dynamic section control which has the purpose of improving the assembly quality of the BMW-3 series manufacturing in the Rosslyn Plant just outside Pretoria in South Africa, The system was introduced into the assembly plant in February 1995 to improve the assembly quality of the vehicles as quickly as possible. The main motivation behind the need for this system was to bring the quality onto the same level as the German plants in order to become recognised in the international network of BMW's manufacturing plants along with the new manufacturing plant in the USA The origins of the dynamic section control system come from the Munich 3-series plant as well as being based on the principles of poka yoke, a quality philosophy devised by the quality expert from Toyota in Japan, Shigeo Shingo, Defects found on the assembly plant's line, identified by the quality auditor and information from the marketing department regarding warranty claims are entered onto a checklist which is used by reworkers in the plant to inspect and make good the defects that have been found. The checklist is updated on a weekly basis, hence its name: dynamic section control. Seven rework stations, in which the dynamic section control reworkers work, have been strategically positioned in the assembly plant which trims the painted bodies it receives from the paint shop, The effectiveness of the system has been measured by analysing the information from the daily audits as well as investigating the trend of vehicles If rving the assembly plant still requiring rework and repairs off-line. The analyses were divided into three distinct periods. The first being approximately 4 months before the introduction of :he dynamic section control system, and the second and third periods after the introduction of the system. The results show that the dynamic section control system have a positive influence in improving the assembly quality of the vehicles, especially reducing the number of recurring defects. The number of defects that have only occurred once in each of the periods has remained reasonably constant indicating that the system has no impact in reducing the random occurrence of "one-off" defects. Another significant finding was. the increase in the number of vehicles requiring Department of Mechanical Engineering, University of the Witwatersrand repair off-line, attributable to the assembly plant, after the vehicle has left the assembly line. This increase is probably the result of an increased quality awareness within the assembly plant, resulting in reworkers identifying an increasing number of defects for repair off-line. Other factors such as clearer identification of production goals, training and development of a proportion of the assembly plant's workers in the German plants lor three weeks, reorganizing of support. staff by installing "the right people in the right place" and reducing the number of model derivatives in the plant have also contributed to the enormous quality improvement achieved. Further development of the. dynamic section control system is recommended by installing a rework station within each team area, and including the actions of dynamic section control in the work content of that team. Currently, the system uses external workers which are not part of individual teams as the current sections overlap team areas. Finally, it is recommended that the work of the dynandc section control reworker be incorporated as a noma! function within the team and be rotated amongst the team members.
AC2017
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Wu, Meng. "Fuzzy-Rule-Based Failure Detection and Early Warning System for Lithium-ion Battery." 2013. http://hdl.handle.net/1805/3522.
Повний текст джерелаАнотація:
Indiana University-Purdue University Indianapolis (IUPUI)Lithium-ion battery is one kind of rechargeable battery, and also renewable, sustainable and portable. With the merits of high density, slow loss of charge when spare and no memory effect, lithium-ion battery is widely used in portable electronics and hybrid vehicles. Apart from its advantages, safety is a major concern for Lithium-ion batteries due to devastating incidents with laptop and cell phone batteries. Overcharge and over-discharge are two of the most common electrical abuses a lithium-ion battery suffers. In this thesis, a fuzzy-rule-based system is proposed to detect the over-charge and over-discharge failure in early time. The preliminary results for the failure signatures of overcharged and over-discharged lithium-ion are listed based on the experimental results under both room temperature and high temperature. A fuzzy-rule-based model utilizing these failure signatures is developed and validated. For over-charge case, the abnormal increase of the surface temperature and decrease of the voltage are captured. While for over discharge case, unusual temperature increase during overcharge phases and abnormal current decrease during overcharge phases are obtained. The inference engine for fuzzy-rule-based system is designed based on these failure signatures. An early warning signal will be given by this algorithm before the failure occurs. This failure detection and early warning system is verified to be effective through experimental validation. In the validation test, the proposed methods are successfully implemented in a real-time system for failure detection and early warning. The result of validation is compatible with the design expectation. Finally an accurate failure detection and early warning system is built and tested successfully.
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Solomon, Cleshain Theodore. "Driver attention and behaviour monitoring with the Microsoft Kinect sensor." Diss., 2015. http://hdl.handle.net/10500/21798.
Повний текст джерелаАнотація:
Modern vehicles are designed to protect occupants in the event of a crash with some vehicles better at this than others. However, passenger protection during an accident has shown to be not enough in many high impact crashes. Statistics have shown that the human error is the number one contributor to road accidents. This research study explores how driver error can be reduced through technology which observes driver behaviour and reacts when certain unwanted patterns in behaviour have been detected. Finally a system that detects driver fatigue and driver distraction has been developed using non-invasive machine vision concepts to monitor observable driver behaviour.Electrical Engineering
M. Tech. (Electrical Engineering)
Книги з теми "Motor vehicles Australia Design and construction"
1
W, Steeds, and Garrett T. K, eds. The motor vehicle. Warrendale, PA: Society of Automotive Engineers, 1996.
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Newton, K. The motor vehicle. Oxford: Butterworth-Heinemann, 1997.
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Newton, K. The motor vehicle. Oxford, England: Butterworth-Heinemann, 1996.
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W, Steeds, and Garrett T. K, eds. The motor vehicle. London: Butterworths, 1989.
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Advances in vehicle design. Bury St Edmunds: Professional Engineering Pub., 1999.
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Materials, design and manufacturing for lightweight vehicles. Boca Raton, Fla: CRC Press, 2010.
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Barwell, Ian. The design and manufacture of low-cost motorized vehicles. Nairobi, Kenya: The Centre, 1988.
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Motor vehicle engineering science for technicians, level 2. Harlow: Longman Scientific & Technical, 1987.
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Garrett, T. K. The motor vehicle. Oxford: Butterworth-Heinemann, 2001.
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10
Raw Materials Research and Development Council (Nigeria). Multi-Disciplinary Task Force on Motor Vehicles and Miscellaneous Sector. Report on motor vehicles and miscellaneous. Lagos, Nigeria: Raw Materials Research and Development Council, 1989.
Знайти повний текст джерелаЧастини книг з теми "Motor vehicles Australia Design and construction"
1
Liang, Zijun, Xuejuan Zhan, Wei Kong, Wei Liu, Yuanyuan Zhao, Yingying Gao, Yiran Niu, and Jingjing Qi. "Optimization Control of Motor Vehicle at Intersection Based on Green Building Materials." In Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde220083.
Повний текст джерелаАнотація:
Along with the rapid development of urban social economy, under the influence of sustainable development strategy, urban road traffic engineering design should adhere to the concept of environmental protection and develop towards greening and modernization. Firstly, this method uses the green environmental construction materials, such as hot-melt reflective marking paint, color asphalt concrete pavement and polyurethane elastic isolation column, to build green traffic spaces at intersection; Then on this basis, the motor vehicles signal optimization technology is used to balance the space-time resource allocation of the motor vehicle traffic flow, motor vehicle traffic optimal phase combination analysis method is put forward, and the optimal calculation of motor vehicle traffic time is optimized by the signal timing optimization method that considers the overlapping phase. Finally, through the evaluation and analysis of the VISSIM traffic simulation software, the results show that the method based on green building materials has effectively defined about the green traffic spaces of motor vehicles, and under this premise, the efficiency of motor vehicle traffic is further improved by signal optimization technology, providing the foundation for the research on green traffic on urban roads.
Тези доповідей конференцій з теми "Motor vehicles Australia Design and construction"
1
Lakatos, István, Dániel Pup, and Dávid Czeglédi. "Determination of Power and Torque Curves of Electric Driven Vehicles Based on Diagnostic Methods." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46724.
Повний текст джерелаАнотація:
The transmitted power of motors can be defined by test bench examinations, in which the motor needs to be dismounted. By applying diagnostic methods only minimal disassembly, or indeed none at all, is necessary. In this paper diagnostic methods are systematized by different studies. Moreover, a new diagnostic procedure (established by the authors) is also introduced, which can be carried out by a relatively cheap measuring system design. Power measurement on a roller test bench is a well-tried technique for vehicle examination. Basically, the wheel parameters (tractive force, torque, power) are measured, but there are also procedures for motor power measurement. By applying the new procedure, the diagnostic method, (simple construction and test bench construction at a favourable price) torque and power characteristics of the mounted motor can be defined. The theoretical considerations of the new measuring technique and the implementation of the measuring system are introduced in this paper. Test bench for drive motor power and torque curve determination. In this study the diagnostical measuring systems and, for the first time, the measuring principle and technology of the new theory-based roller power test bench are presented. For its construction measurements have been carried out which make an important contribution to the research. The results of the research contribute to the development of diagnostics methods and to making them more wide-spread.
2
Verhasselt, Eric, Cornelius Macfarland, Imoleayo Abel, Raundi Quevedo, and Nelson Macken. "Design, Construction, and Testing of a Hydrogen Fuel Cell Powered Vehicle." In ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2014 8th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fuelcell2014-6488.
Повний текст джерелаАнотація:
We have designed, built and tested a hydrogen fuel cell powered vehicle. The vehicle was constructed to specifications set forth for an international competition, which challenges high schools and universities to build and test energy efficient vehicles. We use a commercially available polymer exchange membrane (PEM) fuel cell system with a maximum output of 1.2 kW (1.6HP). The three-wheeled vehicle has a welded frame design utilizing aluminum square tubular components, an Ackermann steering system and an aerodynamically efficient hand-molded fiberglass body. A hub motor/controller powers the single rear wheel. Vehicle performance was determined in the laboratory. Performance curves for fuel consumption, torque and efficiency are presented. The vehicle successfully competed in the hydrogen fuel cell division of the competition.
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Barbat, Saeed D., Hikmat F. Mahmood, and Priya P. Prasad. "Aluminum Intensive Vehicle Crashworthiness Design Approach." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1188.
Повний текст джерелаАнотація:
Abstract A successful design approach and procedures for Ford’s Aluminum Intensive Vehicle (AIV) build and evaluation with emphasis on crashworthiness and front end design are described. Several issues and concerns related to design and assembly of all-aluminum body structure such as material selection, joining techniques, crush behavior and structural integrity were addressed and resolved. An experimental and analytical approach was adopted to investigate the static and dynamic behavior of spot-welded and weld-bonded aluminum crush members. Design and analyses tools for establishing target component forces, assessing energy absorption and stability of collapse of the front end structure are also presented. Sections, components and sub-system analyses were conducted to establish the AIV target forces, energy levels and collapse modes. Extensive testing on generic section columns and production component and sub-systems were also performed. This helped in addressing critical issues associated with the introduction of all aluminum body structure into high volume production. Other tests were also conducted for design verification. Aluminum alloys AA5XXX and AA6XXX-T4 were used for the structural components of the AIV. AA5XXX was used for the front end frame and a mix of AA5XXX/AA6XXX was used for the roof structure. Doors and hoods utilized AA6XXX-T4 alloy for their construction. It was demonstrated that the all-aluminum body structure can achieve equivalent crashworthiness performance as its steel counterpart with a weight saving of 30%. The all-aluminum vehicles were tested in frontal and rear crash, roof crush, side intrusions in side impact and all met or exceeded the Federal Motor Vehicle Safety Standard (FMVSS) requirements.
4
Galmarini, G., M. Gobbi, and G. Mastinu. "A Quadricycle for Urban Mobility." In ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/detc2012-70906.
Повний текст джерелаАнотація:
The need to decrease pollution in urban zones has pushed toward severe regulations in term of low-emission limits. The effect of this “environmental awareness” is an increased interest in electric vehicles (EV). The construction of a EV is presented in the paper. This vehicle has been designed specifically to be powered by electric motors, the suspension system and the general layout have been developed accordingly. According to the European technical regulations, the vehicle has been designed for a city use. The main features of GreenFun, (this is the name of the prototype), are an extensive use of composite and lightweight materials, a special suspension system layout, a 4WD powertrain realized by means of 4 electric motor hubs and the use, for the first time in a production vehicle, of 4 measuring wheels that are able to measure the forces acting between the pneumatic tires and the road. These information are used as input for the vehicle control systems in order to enhance performance and safety. In the paper, the most relevant vehicle subsystems are described in detail (chassis, wheel, suspensions, powertrain, energy management, control system, …).
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Kissner, Gerd, and Hartmut Sauter. "Blow-By Truck Application: Electrically Driven Cone Stack Separator for Crankcase Ventilation." In ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1655.
Повний текст джерелаАнотація:
Dealing with the blow-by gas from reciprocating engine is a bigger challenge nowadays due to strict emission control laws and design limitations. Blow-by gas originates between the piston or piston rings and the cylinder wall and is charged with oil when it leaves the crankcase. In a closed crankcase ventilation system these blow-by gases are drawn from the crankcase into the air intake. The oil mist separator (OMS) retains a fraction of the liquid oil and returns the retained oil fraction back to the oil sump. Thus, the oil mist separator reduces oil consumption and emissions. Electrically driven cone stack separators have high separation efficiency, small differential pressure, arbitrary mounting position and low power consumption. In addition to that, the electrically driven cone stack separator has also advantageous control characteristics. Since commercial motor vehicles already have high electrical system requirements a Mechatroic concept is presented here which was developed to be maintenance-free over the lifetime of the engine. This is achieved by detailed design and choice of special materials. In this paper, the construction and application of the novel oil mist separator system for trucks are discussed in detail.
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Earwaker, Julian. "PropCart: STEM for Aviation and Windpower." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-68729.
Повний текст джерелаАнотація:
Abstract PropCart is a three wheeled model vehicle with a variable pitch pusher propeller and rubber band motor. This paper presents the construction and testing of this vehicle as a platform for teaching concepts of linear and rotational mechanics, and elementary aerodynamics of airfoils applied in aircraft and wind turbines. Building and testing the vehicle is proposed as a 12th Grade STEM project: SCIENCE component: Physics; Linear and Rotational Mechanics with practical determination of basic and derived quantities in particular uniformly accelerated motion. TECHNOLOGY component: Design and construction of the vehicle. ENGINEERING component (overlapping technology): Measurement of thrust of the propeller at different setting angles using video data of propeller angular velocity and cart linear velocity; enabling determination of relative wind and angle of attack, calculation of Reynolds number and identifying stall angle without the use of a wind tunnel. MATHEMATICS component: Data analysis using Excel. A teaching course based mainly on the Khan academy physics programme is provided to support concepts used in the propeller cart project. PropCart is based on a four wheeled vehicle with fixed pitch propeller, devised by David Newton (1999). A redesigned three wheel vehicle with a variable pitch propeller was used in a practical project in a 12 week introductory engineering course at the University of Canterbury (2002) for 15 Petronas students. 12 students completed the project: Test videos for each student were taken in PAL format at 25fps for time intervals of 1–2 seconds for propeller setting angles of 15, 30 and 45 degrees; with student choice of the number of rubber bands used and the number of windup turns. Readings of linear and angular motion were taken with software which could select frame by frame display. Linear and angular displacement against time were plotted against time and time squared. Separate experiments were conducted on the performance of the propeller with the cart fixed with motor axis normal to an annular scale graduated in degrees. The propeller using 2 rubber bands was wound up by 30 turns for each test. Setting angles from 0 to 90 degrees were used. Graphs of angular displacement against time were compared over one second and plotted on a common time axis for setting angles 0 to 90 degrees. The graphs show that stalling occurs at angles greater than 15 degrees. Cart linear motion and propeller angular velocity within a one second time interval were related. Angular velocity of the propeller against time was a piecewise function: At low setting angles near 15 degrees tending to an acceleration sub-function followed by a constant velocity sub-function the latter giving constant thrust and constant linear acceleration of the cart. The angular displacement against time squared graph showed non uniform decreasing acceleration, with the rate of decrease increasing with time squared due to drag; further supported by the test results of the linear motion of the students’ vehicles. A large number of activities are detailed for the teaching of linear and rotational mechanics. For example, the rotational inertia of the propeller can be determined by mounting it as a compound pendulum; this activity importantly uses the parallel axis theorem. Taking the propeller blade as a flat plate airfoil: The relative air flow at mid span can be determined as falling along the resultant of air relative to the cart and air relative to the reference point on the blade: Enabling the determination of flow angle and angle of attack for a given setting angle. A parallel linkage with adjustable link lengths was developed for measuring setting angle by reflecting a laser beam off mirror foil on the blades, this is briefly discussed.