Modelling and Simulation of a Hydrostatic Steering System for Agricultural Tractors

Barbara Zardin, Massimo Borghi, Francesco Gherardini and Nicholas Zanasi
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Barbara Zardin: Engineering Department Enzo Ferrari, University of Modena and Reggio Emilia, Via P. Allegri 10, 41124 Modena, Italy
Massimo Borghi: Engineering Department Enzo Ferrari, University of Modena and Reggio Emilia, Via P. Allegri 10, 41124 Modena, Italy
Francesco Gherardini: Engineering Department Enzo Ferrari, University of Modena and Reggio Emilia, Via P. Allegri 10, 41124 Modena, Italy
Nicholas Zanasi: CNH Industrial, San Matteo, Viale delle Nazioni 55, 41100 Modena, Italy

Energies, 2018, vol. 11, issue 1, 1-20

Abstract: The steering system of a vehicle impacts on the vehicle performance, safety and on the driver’s comfort. Moreover, in off-road vehicles using hydrostatic steering systems, the energy dissipation also becomes a critical issue. These aspects push and motivate innovation, research and analysis in the field of agricultural tractors. This paper proposes the modelling and analysis of a hydrostatic steering system for an agricultural tractor to calculate the performance of the system and determine the influence of its main design parameters. The focus here is on the driver’s steering feel, which can improve the driver’s behavior reducing unnecessary steering corrections during the working conditions. The hydrostatic steering system is quite complex and involves a hydraulic circuit and a mechanical mechanism to transmit the steering to the vehicle tires. The detailed lumped parameters model here proposed allows to simulate the dynamic behavior of the steering system and to both enhance the understanding of the system and to improve the design through parameters sensitivity analysis.

Keywords: hydrostatic steering system; simulation; sensitivity analysis; rotary valve analysis; agricultural tractors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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