This work focuses on the hydraulic circuit that feeds the remote actuators of a mid-size power agricultural tractor. First of all, the energy consumption of a traditional load sensing architecture, which uses a single electronically controlled spool valve, is analyzed. For this kind of circuit, the position of the spool generally determines, at the same time, pressure drops both at the inlet and at the outlet section. The consequence is that in the majority of the situations both the meter-in and the meter-out configuration is not optimized in terms of energy consumption.An alternative architecture, with an independent metering configuration, based on a pressure based control strategy is analyzed and modelled. Energy consumption comparisons of the two systems are made, using different duty cycles, involving resistant and overrunning loads.

Energy Comsumption of the Hydraulic Circuit of a Mid-Size Power Tractor / Borghi, Massimo; Zardin, Barbara; Mancarella, Francesco; Specchia, Emiliano. - STAMPA. - 1:(2010), pp. 37-50. ((Intervento presentato al convegno 7th International Fluid Power Conference tenutosi a Aachen nel 22-24 march 2010.

Energy Comsumption of the Hydraulic Circuit of a Mid-Size Power Tractor

BORGHI, Massimo;ZARDIN, Barbara;MANCARELLA, Francesco;SPECCHIA, EMILIANO
2010

Abstract

This work focuses on the hydraulic circuit that feeds the remote actuators of a mid-size power agricultural tractor. First of all, the energy consumption of a traditional load sensing architecture, which uses a single electronically controlled spool valve, is analyzed. For this kind of circuit, the position of the spool generally determines, at the same time, pressure drops both at the inlet and at the outlet section. The consequence is that in the majority of the situations both the meter-in and the meter-out configuration is not optimized in terms of energy consumption.An alternative architecture, with an independent metering configuration, based on a pressure based control strategy is analyzed and modelled. Energy consumption comparisons of the two systems are made, using different duty cycles, involving resistant and overrunning loads.
7th International Fluid Power Conference
Aachen
22-24 march 2010
1
37
50
Borghi, Massimo; Zardin, Barbara; Mancarella, Francesco; Specchia, Emiliano
Energy Comsumption of the Hydraulic Circuit of a Mid-Size Power Tractor / Borghi, Massimo; Zardin, Barbara; Mancarella, Francesco; Specchia, Emiliano. - STAMPA. - 1:(2010), pp. 37-50. ((Intervento presentato al convegno 7th International Fluid Power Conference tenutosi a Aachen nel 22-24 march 2010.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/641233
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