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Title: Apparatus for controlling steering power in power steering system

Abstract

This patent describes an apparatus for controlling a steering power in a power steering system which is used in an automobile. The apparatus consists of: a main pump which supplies a first hydraulic coil to the power steering system to operate the same; an oil pressure reaction chamber for controlling the steering power; a subpump of a reduced size smaller than that of the main pump for supplying a second hydraulic oil to the oil pressure reaction chamber to operate the same; a first oil path interconnecting the subpump and oil pressure reaction chamber to each other for flowing the second hydraulic oil through the first oil path; an oil tank; a second oil path branched from the first oil path and connected to the oil tank; a first control valve means disposed in the second oil path for raising the hydraulic pressure of the oil pressure reaction chamber in response to an increase in the running speed of the automobile so as to control the oil pressure reaction chamber to increase the steering power; and a second control valve means connected in parallel relationship with the first control valve means for changing the steering power in response to themore » hydraulic pressure of the first hydraulic oil supplied from the main pump.« less

Inventors:
;
Publication Date:
OSTI Identifier:
6888241
Patent Number(s):
US 4775022
Assignee:
Koyo Jidoki Kabushiki Kaisha, Nara
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 15 Jun 1985
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; AUTOMOBILES; CONTROL EQUIPMENT; HYDRAULICS; DESIGN; HYDRAULIC FLUIDS; OILS; PUMPS; TANKS; VALVES; CONTAINERS; EQUIPMENT; FLOW REGULATORS; FLUID MECHANICS; FLUIDS; MECHANICS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; VEHICLES; WORKING FLUIDS; 330601* - Vehicle Design Factors- Body & Chassis

Citation Formats

Hirakushi, S, and Matsubara, H. Apparatus for controlling steering power in power steering system. United States: N. p., 1988. Web.
Hirakushi, S, & Matsubara, H. Apparatus for controlling steering power in power steering system. United States.
Hirakushi, S, and Matsubara, H. 1988. "Apparatus for controlling steering power in power steering system". United States.
@article{osti_6888241,
title = {Apparatus for controlling steering power in power steering system},
author = {Hirakushi, S and Matsubara, H},
abstractNote = {This patent describes an apparatus for controlling a steering power in a power steering system which is used in an automobile. The apparatus consists of: a main pump which supplies a first hydraulic coil to the power steering system to operate the same; an oil pressure reaction chamber for controlling the steering power; a subpump of a reduced size smaller than that of the main pump for supplying a second hydraulic oil to the oil pressure reaction chamber to operate the same; a first oil path interconnecting the subpump and oil pressure reaction chamber to each other for flowing the second hydraulic oil through the first oil path; an oil tank; a second oil path branched from the first oil path and connected to the oil tank; a first control valve means disposed in the second oil path for raising the hydraulic pressure of the oil pressure reaction chamber in response to an increase in the running speed of the automobile so as to control the oil pressure reaction chamber to increase the steering power; and a second control valve means connected in parallel relationship with the first control valve means for changing the steering power in response to the hydraulic pressure of the first hydraulic oil supplied from the main pump.},
doi = {},
url = {https://www.osti.gov/biblio/6888241}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 04 00:00:00 EDT 1988},
month = {Tue Oct 04 00:00:00 EDT 1988}
}