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A hydraulic hybrid passenger vehicle using a Hydro-mechanical Transmission (HMT) or power-split architecture is being developed as a testbed within the Center for Compact and Efficient Fluid Power. In this paper, the design and experimental implementation of a three-level hierarchical control approach for this vehicle with a second generation hardware are presented. This control strategy segregates...
Since hydraulic hybrid vehicles are power dense and do not require costly batteries, they have the potential to achieve high fuel economy and performance and at low cost. The three main classes of hydraulic hybrid architectures are series, parallel and hydro-mechanical (HMT) or power-split. These architectures have intrinsic differences in transmission efficiencies and effectiveness in engine management...
Hydraulic hybrid vehicles are inherently power dense. Power-split or hydro-mechanical transmissions (HMT) have advantages over series and parallel architectures. In this paper, an approach for optimizing the configuration and sizing of a hydraulic hybrid power-split transmission is proposed. Instead of considering each mechanical configuration consisting of combinations of gear ratios, a generalized...
A diesel generator set (genset) refers to a diesel engine powered electrical alternator. Controls are needed to regulate the electrical output at the nominal voltage (120V RMS) and frequency (60Hz) despite variation in the electrical loads. In this paper, a system model for the genset is developed. A grey-box system model that considers known physical dependence and empirical identification of unknown...
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