In modern mobile machines, the working implements and drivetrains often use fluid power drives due to their superior power density and robustness. The state of the art in today's machines is still load sensing as these circuits offer excellent performance at reasonable cost. Maintaining the dominance of fluid power in this sector will largely rely on whether or not new more efficient circuits and technologies can be developed. To do so, design engineers must be aware of all possible circuit configurations available to them. This paper takes a systematic approach and begins by introducing a framework to classify all current system architectures and to aid in the development of new architectures. It includes impressed flow and pressure circuits as well as analogue and digital solutions with recuperation and regeneration. For easy recognition of the various circuits a classification barcode is introduced. The next section discusses and evaluates solutions that are state of the art on the market and continues with novel circuits standing in the focus of current research activities in industry as well as academia. Valve controlled and displacement controlled circuits are addressed by considering their possibilities to recover energy. The overview closes with holistic drive concepts that incorporate the combustion engine into their design.
An Overview of Energy Saving Architectures for Mobile Applications
2014
12 Seiten, Bilder, 29 Quellen
Conference paper
English
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