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Loaders (Machines)

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Earthmoving machinery. --- Loaders (Machines)

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This thesis explores the optimization of engine operations in multi-mode continuously variable transmission (CVT) wheel loaders to improve fuel efficiency. The study discusses the transient nature of wheel loader operations, where power is distributed between transmissions and working hydraulics, and the challenges posed by conventional torque converters. It examines the potential of CVTs to enhance operability while reducing fuel consumption through active control. The research involves dynamic programming and Pontryagin’s maximum principle to derive optimal operating point trajectories for both naturally aspirated and turbocharged engines. The thesis also evaluates stochastic dynamic programming as a tool for comparing present transmission systems with hydrostatic multi-mode CVT concepts. The findings indicate significant improvements in fuel efficiency with the proposed CVT systems. The work is grounded in the context of vehicular systems and aims to inform control development in heavy equipment applications, targeting professionals and scholars in electrical and vehicular engineering.

Loaders (Machines) --- Fuel consumption.

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Excavating machinery --- Backhoes --- Loaders (Machines) --- Safety measures.

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Loaders (Machines) --- Loading and unloading --- Industrial safety --- Safety regulations --- Safety measures.