Control Of Automotive Systems
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Controle ativo acústico estrutural: projeto, simulação e análise de qualidade sonora / Active structural acoustic control: design, simulation and analysis of sound quality
This master thesis deals with the study of active noise and sound quality control systems in automotive applications, and the innovative assessment of their performance based on relevant psychoacoustic metrics in this area such as Loudness, Roughness and Tonality. A methodology for designing and implementing active control systems based on psychoacoustic met
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2012
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2. Implementação de um programa computacional para auxilio ao projeto de freios automotivos utilizando técnicas de metodologia de projeto / Implementation of a computer program to aid the design of automotive brakes using techniques of the design methodology
This work presents the development of the informational and preliminary design phases to friction brakes applied to urban vehicles of low cost. The design development of the brake systems for vehicles with less or zero pollutants emissions, with high efficiency depends strongly of the control systems, dirigibility conditions and mainly of the solutions to th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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3. Manutenção prescrita e manutenção real: uma abordagem baseada na atividade dos profissionais: o caso de uma indústria automobilística
This study aims to present the determinants of activity in real situations, characterized by variability and unpredictability inherent in production systems, as well as understanding and relevance of the requirements developed with the effective participation of professionals. With this purpose, we studied the activities of professionals (mechanics and elect
Publicado em: 2011
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4. Efeitos do sistema de recirculação dos gases de escape no controle de emissões de NOx em motores a diesel / Effects of exhaust gas recirculation to control NOx emissions in Diesel engines
Automotive vehicles are responsible for the most of locomotion in the modern world. The mainly propulsive energy used is based on burning of fossil fuels. In real combustion systems the chemical process involved a high complexity which results mainly in five types of air pollutants, that are, carbon monoxide, organic compounds as hydrocarbons unburned or par
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/05/2010
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5. Arquitetura modular de processador multicore, flexível, segura e tolerante a falhas, para sistemas embarcados ciberfísicos. / Modular multicore processor architecture, flexible, securi and fault tolerant, to embedded cyber-physical systems.
Cyber-physical Systems (CPS) are systems where there is an union between computing and physics. The CPS will be used in several areas, forming a new era of systems or devices and could be anywhere, being used by anyone and anything. Applications for CPS include highly reliable medical systems and devices, traffic control and security, advanced automotive, pr
Publicado em: 2010
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6. MODELAGEM INTEGRADA DA DINÂMICA VEICULAR PARA CONTROLE HOMEOSTÁTICO / INTEGRATED MODELING OF VEHICLE DYNAMICS TOWARDS HOMEOSTATIC CONTROL
This work presents a technique for modeling dynamic systems together with a new proposal for the design and development of embedded controllers for automotive systems. In this new approach not only is it possible to modify the applied controller to vehicle dynamics by simply enabling or disabling successive specific local controllers, but it is also possible
Publicado em: 2009
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7. Sistema para corrosão anisotropica profunda de sensores microeletromecanicos / Anisotropic etching system for micro electrical mechanical sensor
Integrated Silicon Sensors and Microelectromechanical Systems (MEMSs) have been developing drived mainly by the micro and nanoelectronic industry s continuous growth. As a result, MEMSs have been spreading out very quickly into commercial products. In fact, MEMSs have undertaken room in automotive market where pressure sensors as well as accelerometers have
Publicado em: 2009
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8. A arquitetura em concessionários de automóveis e o baixo impacto ambiental
The proposal of this research is an approaching of the architecture production for car dealers in Brazil, its main characteristics and their study based under the aspect of buildings with low environmental impact. To achieve this objective a study of architectural projects were done through survey of building and projects published in relevant and specialize
Publicado em: 2009
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9. An optimal linear control design for nonlinear systems
This paper studies the linear feedback control strategies for nonlinear systems. Asymptotic stability of the closed-loop nonlinear system is guaranteed by means of a Lyapunov function, which can clearly be seen to be the solution of the Hamilton-Jacobi-Bellman equation thus guaranteeing both stability and optimality. The formulated Theorem expresses explicit
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-12
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10. MODELAGEM DE EVAPORADORES TIPO PLACAS PARA SISTEMAS CONDICIONADORES DE AR AUTOMOTIVOS / MODELING OF EVAPORATORS TYPE LAMINATED PLATE FOR AUTOMOTIVE AIR CONDITIONING SYSTEMS
A simulation model for automotive brazed laminate plate evaporators, for humid air cooling, was developed. The model adopts the local analysis method, where the heat exchanger is divided into a number of elemental control volumes, for which the equations of heat transfer and conservation of energy are applied. In order to determine the local heat transfer co
Publicado em: 2008
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11. ESTRATÉGIAS DE CONTROLE APLICADAS AO PROBLEMA DE DIRIGIBILIDADE DE VEÍCULOS TERRESTRES EM TRAJETÓRIAS FECHADAS PRÉ-DEFINIDAS / CONTROL STRATEGIES APPLIED TO GROUND VEHICLES HANDLING PROBLEM IN PRE-DEFINED CLOSED TRAJECTORIES
Apresenta-se o uso das ferramentas lineares de Controle Clássico (Lugar Geométrico das Raízes) e Moderno (Realimentação de Estado e de Saída e Alocação de Pólos) para estabelecer os ajustes dos controladores adotados no problema de acompanhamento de trajetórias em traçados fechados por veículos terrestres, procurando reproduzir o comportamento do
Publicado em: 2008
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12. Uma proposta de ferramenta para controle de qualidade em linha de produÃÃo e montagem de cÃmbios automotivos utilizando filtragem adaptativa / A proposal of tool for automotive gearbox quality control in production and assembly line using adaptive filtering
Normally, automotive gearbox quality control in assembly line is made in subjective manner by specialists. The human ear, despite being a highly sensitive tool and widely used in quality control is also sensitive to emotional and environmental problems (back noises), besides not giving measurable values. In order to solve this problem, the traditional techni
Publicado em: 2007