No.1003E 2007 Development of Hydraulic Power Steering (HPS) System for Large Vehicles

Category TECHNICAL REPORT
Author T. SUGIMOTO I. UNO H. ISHIHARA S. URANO
System Engineering Department 3, Steering System Operations Headquarters
T. OHHASHI
NV Engineering Department, Steering System Operations Headquarters
T. IKEDA
System Engineering Department 3, Steering System Operations Headquarters
Abstract In accordance with recent increases in crude oil prices and the need to promote environmental protection, power steering systems have been changing from hydraulically assisted types to electrically assisted types because of the latter's ability to improve fuel effi ciency. However, it is believed that the demand for hydraulic steering systems for large vehicles requiring high strength and high output will continue. This report describes the development of an optimal hydraulic power steering system for large vehicles.
Keyword hydraulic power steering system, high output, large vehicle, improved fuel effi ciency, high pressure, high fl ow rate
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