JPS60148169U

JPS60148169U - Torque steer prevention device for power steering equipment

Info

Publication number: JPS60148169U
Application number: JP3611884U
Authority: JP
Inventors: 元小塚
Original assignee: 三菱自動車工業株式会社
Priority date: 1984-03-15
Filing date: 1984-03-15
Publication date: 1985-10-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のパワーステアリング装置を示す平面図、
第２図はその背面図、第３図はエンジン性能を示す説明
図、第４図はドライブシャフトの捩り剛性を示す説明図
、第５図は車輪への伝達トルクと位相を示す説明図、第
６図は本案に係るパワーステアリング装置のトルクステ
ア防止装置の一実施例の概略を示す側面図、第７図はそ
の詳細を示す説明図、第８図はソレノイドバルブ及びリ
リーフ弁の縦断側面図である。２３・・・オイルポンプ、２４・・・オイルタンク、２
５・・・油路切換弁、２６・・・高圧油路、２７・・・
低圧油路、２８，２９ａ、２Ｆｂ・・・油路、３０−・
・パワーシリンダ、３１・・・ソレノイドバルブ、３２
・・・リリーフ弁。エンジン回転数８　− −　　Ｙｐ″ｒｒＬ −捩り角θFigure 1 is a plan view showing a conventional power steering device;
Fig. 2 is a rear view, Fig. 3 is an explanatory diagram showing engine performance, Fig. 4 is an explanatory diagram showing the torsional rigidity of the drive shaft, Fig. 5 is an explanatory diagram showing the torque and phase transmitted to the wheels, FIG. 6 is a side view schematically showing an embodiment of the torque steer prevention device for a power steering device according to the present invention, FIG. 7 is an explanatory view showing details thereof, and FIG. 8 is a longitudinal side view of a solenoid valve and a relief valve. be. 23...Oil pump, 24...Oil tank, 2
5... Oil passage switching valve, 26... High pressure oil passage, 27...
Low pressure oil path, 28, 29a, 2Fb... oil path, 30-.
・Power cylinder, 31...Solenoid valve, 32
...Relief valve. Engine speed 8 − − Yp″rrL − Torsion angle θ

Claims

[Scope of utility model registration request]

The movement of the steering wheel is transmitted to the oil passage switching valve to switch between a high pressure oil passage extending from the oil pump to the oil passage switching valve and a low pressure oil passage extending from the oil passage switching valve to the oil tank to set the power cylinder in a specified position. a solenoid valve that closes an oil passage communicating between the oil passage switching valve and the power cylinder depending on the driving state of the vehicle to prevent oil from returning from the power cylinder; a relief valve that allows oil to return from the power cylinder when the oil pressure in the oil discharge side oil chamber of the power cylinder exceeds a predetermined pressure; the relief valve is incorporated into the solenoid valve; A torque steer prevention device for a power steering device, characterized in that a space on the side of the solenoid valve body of the spool is communicated with an oil passage on the side of the power cylinder.