Development and Application of Co-simulation and “Control- oriented” Modeling in the Improvement of Performance and Energy Saving of Mobile Machinery☆

Abstract Due to rising energy costs and tighter emissions restrictions from law regulations, mobile machinery and off-road vehicles manufacturers are forced to develop and exploit new techniques for the reduction of fuel consumption and pollutant emission. The main focus in this direction is the optimization of the matching between the fluid power circuit and the thermal engine to improve the efficiency of the hydraulic system and reducing the fuel consumption. A specific research activity has been started in this field by the authors to define methods and techniques for the mathematical simulation of off-road vehicles, where usually hydraulic systems are powered by internal combustion engines. The models proposed in the paper and the related results clearly show how these simulation tools can be used to improve the energy efficiency of the overall system, leading to an interesting reduction in fuel consumption by merely changing the engine rotational speed instead of adopting a constant-speed strategy.

[1]  Marcello Canova,et al.  A real-time model of a small turbocharged Multijet Diesel engine: application and validation. , 2005 .

[2]  Agostino Gambarotta,et al.  Real-time modelling of transient operation of turbocharged diesel engines , 2011 .

[3]  Agostino Gambarotta,et al.  A Real-Time Model for the Simulation of Transient Behaviour of Automotive Diesel Engines , 2006 .

[4]  Alvin Anthony,et al.  Modeling of an Excavator System - Semi Empirical Hydraulic Pump Model , 2011 .

[5]  Alvin Anthony,et al.  Gray box modeling of an excavator’s variable displacement hydraulic pump for fast simulation of excavation cycles , 2013 .

[6]  Agostino Gambarotta,et al.  HiL/SiL System for the Simulation of Turbocharged Diesel Engines , 2012, MTZ worldwide.

[7]  J. Karl Hedrick,et al.  Automotive Engine Modeling for Real Time Control Application , 1987, 1987 American Control Conference.

[8]  Qingfeng Wang,et al.  Development of Power Train of Hybrid Power Excavator , 2013 .

[9]  R. Paoluzzi,et al.  LOAD SENSING WITH ACTIVE REGENERATION SYSTEM , 2008 .

[10]  Lino Guzzella,et al.  Introduction to Modeling and Control of Internal Combustion Engine Systems , 2004 .

[11]  D. P. Atherton,et al.  An analysis package comparing PID anti-windup strategies , 1995 .

[12]  Massimo Borghi,et al.  Energy dissipation of the hydraulic circuit of remote auxiliary utilities of an agricultural tractor , 2010 .

[13]  Kyongsu Yi,et al.  Development of supervisory control strategy for optimized fuel consumption of the compound hybrid excavator , 2012 .

[14]  Alvin Anthony,et al.  Modeling Simulation and Experimental Verification of an Excavator Hydraulic System - Load Sensing Flow Sharing Valve Model , 2012 .

[15]  Monika Ivantysynova,et al.  A Series-Parallel Hydraulic Hybrid Mini-Excavator with Displacement Controlled Actuators , 2013 .

[16]  Riccardo Scattolini,et al.  Fondamenti di Controlli Automatici , 2008 .

[17]  N. Watson,et al.  Turbocharging the internal combustion engine , 1982 .