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Energies 2018, 11(1), 230; https://doi.org/10.3390/en11010230

Modelling and Simulation of a Hydrostatic Steering System for Agricultural Tractors

1
Engineering Department Enzo Ferrari, University of Modena and Reggio Emilia, Via P. Allegri 10, 41124 Modena, Italy
2
CNH Industrial, San Matteo, Viale delle Nazioni 55, 41100 Modena, Italy
*
Author to whom correspondence should be addressed.
Received: 6 December 2017 / Revised: 10 January 2018 / Accepted: 12 January 2018 / Published: 18 January 2018
(This article belongs to the Section Energy Fundamentals and Conversion)
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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. View Full-Text
Keywords: hydrostatic steering system; simulation; sensitivity analysis; rotary valve analysis; agricultural tractors hydrostatic steering system; simulation; sensitivity analysis; rotary valve analysis; agricultural tractors
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zardin, B.; Borghi, M.; Gherardini, F.; Zanasi, N. Modelling and Simulation of a Hydrostatic Steering System for Agricultural Tractors. Energies 2018, 11, 230.

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