This paper presents an analysis on energy consumption and energy efficiency of a hexapod robot during its turning motion over flat terrain. The energy consumption model has been derived for statically stable wave-turning gaits by considering a minimization of dissipating energy for optimal foot force distribution. Two approaches, such as minimization of norm of feet forces and minimization of n...

In this chapter, we consider fashion supply chain management through cost and time minimization, from a network perspective, and in the case of multiple fashion products. We develop a multicriteria decisionmaking optimization model subject to multimarket demand satisfaction, and provide its equivalent variational inequality formulation. The model allows for the determination of the optimal mult...

Hybrid electric vehicles (HEVs), as a promising solution to mitigate environmental pollution and reduce fuel consumption, employ combination of power supply for boosting the vehicle's economy. Comparing conventional internal combustion engine (ICE) driven vehicles, additional propulsion source in electrified powertrain systems HEVs leads extra control degree freedom. Thus, well-designed energy ...

Hybrid Vehicle fuel economy performance is highly sensitive to the “Energy Management” strategy used to regulate power flow among the various energy sources and sinks. Optimal solutions are easy to specify if the drive cycle is known a priori. It is very challenging to compute controllers that yield good fuel economy for a class of drive cycles representative of typical driver behavior. Additio...

Abstract: In hybrid electric vehicles with power-split configurations, the engine can be decoupled from the wheel and operated with improved fuel economy, while the entire efficiency of the powertrain is affected by the circular electric power flow. Two planetary gear (2-PG) sets with adding brakes/clutches, namely a type of four shaft elelctric continuously variable transmission (ECVT) can pro...

The need to decarbonize the shipping sector is leading a growing interest in fuel cell-based propulsion systems. While Polymer Electrolyte Membrane Fuel Cells (PEMFC) represent one of most promising and mature technologies for onboard implementation, they are still prone remarkable degradation. same problem also affecting Lithium-ion batteries (LIB), which usually coupled with PEMFC hybrid powe...

A comparison analysis based method for computing the water consumption volume needed for electric energy production of optimal scheduling in hydro-thermal power systems is presented in this paper. The electric energy produced by hydroelectric plants and coal-fired plants is divided into 4 components: potential energy, kinetic energy, water-deep pressure energy and reservoir energy. A new and im...

WANG, RUI. A Real-time, Robust Control Strategy for Plug-in Hybrid Electric Vehicles. (Under the direction of Srdjan M. Lukic). Plug-in hybrid electric vehicles (PHEVs) are hybrid electric vehicles (HEVs) that can be recharged by connecting to the electric grid. PHEVs can operate in all-electric mode or in a blended mode where the battery and the internal combustion engine work simultaneously t...

In order to solve the problem of high fuel consumption and poor emission performance in horsepower tractors, a parallel hybrid tractor system was designed using dual power source an engine motor matched with hydro-mechanical continuously variable transmission (HMCVT). An equivalent minimization strategy (ECMS) used for distribution this system. To address adaptability equivalence factor differe...