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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 14 of 14 for “"continuously variable transmission"”.
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Design of a belt-driven continuously variable transmission
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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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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A Kinematic Analysis and Design of a Continuously Variable Transmission
… describes a method for analyzing and 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 …
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Design and analysis of a modified power-split continuously variable transmission
… 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 shaft-to-shaft …
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Analysis and Experimental Comparison of Models of a New Form of Continuously Variable Transmission
Efficient, high-performance 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 …
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An Experimentally-Validated V-Belt Model for Axial Force and Efficiency in a Continuously Variable Transmission
Rubber 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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Computer control of engine-transmission system for improving fuel economy
… The strategy is to control an 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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Compliant ortho-planar spring behavior under complex loads
… of this research is the application 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 …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
… of A390 aluminum primary clutch sheaves 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 …
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Design and Operation of a Rotatable Valve Cam to Improve the Efficiency of a Hydraulic Motor in an Inline Hydro-Mechanical Transmission
Traditional Hydro-mechanical transmissions (HMTs) split transmitted power between hydraulic and mechanical channels, which allows them to maintain continuously variable transmission ratios while achieving higher efficiency than hydrostatic transmissions. The Hondamatic inline HMT (iHMT) reduces the …
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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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Designing and modeling a torque and speed control transmission (TSCT)
… (HEVs) generally employ current automotive transmissions. These automatic and manual transmissions are based on designs that are many years old. These older transmission designs do not allow multiple power inputs/outputs to be connected to the transmission. These types of designs …
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The use of series compliance and variable transmission elements in the design of a powered knee prosthesis
… architectures. Advanced actuators utilizing variable transmissions with elastic elements were compared to direct drive actuators, series elastic actuators, and two novel mechanisms known as the continuously-variable series-elastic actuator (CV-SEA) and the clutchable series-elastic actuator …
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Design of electric vehicle propulsion system incorporating flywheel energy storage
… speed flywheel in combination with a mechanical transmission is an attractive high power source for the battery electric vehicle due to its favourable characteristics of high specific power, sufficient high specific energy, high energy efficiency, long cycle life, quick recharge and low cost . …