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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 31 for “"CVT"”.
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A Kinematic Analysis and Design of a Continuously Variable Transmission
… designing a continuously variable transmission (CVT). The analysis process is implemented in a software package that can be used to tune a CVT for a given application. The analysis is accomplished through the use of kinematic principles as well as equations developed from basic energy balances. …
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Design and analysis of a modified power-split continuously variable transmission
The CVT has advantages over the conventional stepped ratio transmission because of its smooth, stepless shifting, simplified design, and a potential for reduced fuel consumption and tailpipe emissions. The power split CVPST has a potentially higher mechanical efficiency than a conventional …
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Analysis and Experimental Comparison of Models of a New Form of Continuously Variable Transmission
… continuously variable transmission (CVT) technology is currently being pursued by many engineering companies as a way to combat manufacturing cost, improve the feasibility of systems such as electric cars and small-scale wind power generation, and improve efficiency of many mechanical …
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Designing and modeling a torque and speed control transmission (TSCT)
… and a Continuously Variable Transmission (CVT). By combining these two types of power transmission devices, a new transmission is created that has much greater flexibility. This combination of a planetary geartrain with a CVT allows for a power split operation under certain conditions. This …
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Isolation and characterization of Saccharomyces cerevisiae mutants for vacuolar import and autophagocytosis
… vacuole via the cytoplasm to vacuole trnasport (Cvt) pathway. The cytosolic protein is enclosed in a double-membrane vesicle, which is transported to and fuses with the vacuole releasing a single-membrane autophagic body into the vacuolar lumen. This is degraded and the precursor sequence of …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
… used in continuously variable transmission (CVT). The coatings tested were: hard chrome, electroless nickel metal, hard coat anodizing and composite ceramic coating. The primary clutch sheave material is a die-cast A390 aluminum. A wear test stand was developed to duplicate wear found on CVTs …
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Study of growing incongruent antiferromagnetic single crystals and characterization
… were investigated. The chemical vapor transport (CVT) has been used to assemble large crystalline grains below their melting/decomposition temperatures. In this thesis, the thermodynamics of these CVT reactions are investigated and presented alongside experimental efforts for single crystals of …
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Design considerations for variable power split hydraulic drives for industrial applications
Continuously variable transmissions (CVTs) offer some advantages over conventional transmissions in industrial applications. During discrete shifts, conventional transmissions suffer from momentary power transmission lapses, which may produce undesirable effects in the system. Currently, the types …
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Attention-enhanced Cross-View Transformer for monocular BEV perception
… Projection (CVP) and a Cross-View Transformer (CVT) for view transformation. CVP enforces geometric coherence through cycle-consistency constraints, while CVT explicitly models feature correspondence across views. We evaluate our approach on KITTI and Argoverse 1.1 datasets for both static and …
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Proposta de atividades educacional, profissionalizante e científico-tecnológica dos Centros Vocacionais Tecnológicos (2003-2013)
… dos Centros Vocacionais Tecnológicos (CVTs), tendo por base o exame de documentos oficiais emanados do poder federal (MEC, MCTIS, SCTI, dentre outros). Fundamentado no método do materialismo histórico dialético, que tem por base a crítica à economia política pelas categorias totalidade, …
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Evaluación preliminar de datos geológicos y geoquímicos del área geotérmica de Tutupaca, Región de Tacna en el sur de Perú
El Complejo Volcánico Tutupaca (CVT) se encuentra ubicado en la parte sur de Perú, en la Región de Tacna. Este Complejo Volcánico forma parte de una serie de volcanes formados en la zona durante el Cuaternario, los cuales han despertado un interés por evaluar sus posibles beneficios geotérmicos …
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Computer control of engine-transmission system for improving fuel economy
… engine and a continuously variable transmission (CVT) in such a way that the engine works along a line of minimum brake specific fuel consumption (BSFC).
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An Investigation of a Positive Engagement, Continuously Variable Transmission
A continuously variable transmission (CVT) is a type of transmission that allows an infinitely variable ratio change within a finite range, allowing the engine to continuously operate in an efficient or high performance range. A brief history of CVTs is presented, including the families under which …
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An Experimentally-Validated V-Belt Model for Axial Force and Efficiency in a Continuously Variable Transmission
… V-belt Continuously Variable Transmissions (CVT's) are commonplace in the Baja SAE collegiate design competition, and are also used widely in the power sports industry. These transmissions offer benefits of simplicity in mechanical design, consisting of only two pulleys, and are easy to use. …
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Construction of Centroidal Voronoi Tessellations Using A Conjugate Gradient Method Based On Trust Regions
… is called a centroidal Voronoi tessellation (CVT). Due to the natural optimization properties enjoyed by CVTs, they have diverse applications in many areas of science and engineering. In this paper, we present a new algorithm for computing CVTs--the conjugate gradient method based on trust …
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Over-Relaxation Lloyd Method For Computing Centroidal Voronoi Tessellations
<p>Centrodial Voronoi tessellation (CVT) is a Voronoi tessellation of a region whose generating points are also the mass centroids of the corresponding Voronoi regions. Centrodial Voronoi tessellations have diverse applications in many areas of science and engineering. In this paper, we study …
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Compliant ortho-planar spring behavior under complex loads
… of COPS to a continuously variable transmission (CVT). The design space limitations, loading conditions, stresses, stress concentrations, and limitations of current design tools, such as pseudo-rigid-body models (PRBM) for COPS, are discussed. A new 3D PRBM is presented along with a discussion on …
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An Investigation of Improving Wear of 390 Die-cast Aluminum Through Hardcoat Anodizing
… a significant localized wear groove in the stock CVT drive sheave with little wear occurring elsewhere. The Hardcoat anodized CVT drive sheave did not show evidence of a significant localized wear groove as the stock sheave but indicates that wear occurred more evenly across the surface. This wear …
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SYNTHESIS, ELECTRONIC AND OPTO-ELECTRONIC TRANSPORT PROPERTIES OF ATOMICALLY THIN 2D LAYERS OF MoS2, WSe2 and CuIn7Se11
… and mechanical exfoliation as well as CVT grown mechanically exfoliated WSe2 and ternary alloy of CuIn7Se11 is reported. Specifically, it is shown that in case of MoS2, the ac conductance (σ(ω); measured in the range of 10mHz < ω < 0.1 MHz) of atomically thin 2D layers of chemical vapor …
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The Chemistry and Crystallography of Doped Bixbyite, Braunite and Novel Anion-Deficient Fluorite Oxides
… through traditional chemical vapour transport (CVT) allowed for insight in to the frequently overlooked atomic displacement parameters which appear to be anharmonic in nature. This observation appears not to be unique to Cu3TeO6 but rather is present in most bixbyites likely due to a small …
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