JPS599961U

JPS599961U - Hydraulic pressure control device for vehicle braking system

Info

Publication number: JPS599961U
Application number: JP10527482U
Authority: JP
Inventors: 西名　秀芳; 順一田上
Original assignee: トヨタ自動車株式会社
Priority date: 1982-07-12
Filing date: 1982-07-12
Publication date: 1984-01-21
Also published as: JPH0143337Y2

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、本考案の一実施例を示す液圧制御装置の構成
を示す図である。１０・・・マスクシリンダ、２０・・・プロポーショニ
ングバルブ（液圧制御装置）、２６・・・バルブハウジ
ング、２８・・・バルブピストン、５１・・・第１スプ
リング、５２・・・ベースプレート、５６・・・ダイヤ
フラム、５８・・・ダイヤフラム室、６０・・・第２ス
プリング、６４・・・配管（圧力伝達通路）、６６・・
・車高調節器（流体式車高調節装置）、６８・・・車高
コントローラ（流体式車高調節装置）。FIG. 1 is a diagram showing the configuration of a hydraulic pressure control device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Mask cylinder, 20... Proportioning valve (hydraulic pressure control device), 26... Valve housing, 28... Valve piston, 51... First spring, 52... Base plate, 56 ...Diaphragm, 58...Diaphragm chamber, 60...Second spring, 64...Piping (pressure transmission passage), 66...
-Vehicle height adjuster (fluid type vehicle height adjustment device), 68...Vehicle height controller (fluid type vehicle height adjustment device).

Claims

[Scope of Utility Model Registration Claim] In a vehicle equipped with a fluid-type vehicle height adjustment device that maintains the vehicle at a predetermined height by changing fluid pressure according to the vehicle's carrying load, the problem occurs in the mask cylinder of the vehicle. When the applied brake fluid pressure reaches a predetermined pressure, the valve piston
The valve piston is moved in the direction of protruding from the valve housing against the biasing force in the direction toward the non-operating position, thereby suppressing the brake fluid pressure from the mask cylinder supplied to the rear wheel brake of the vehicle. A hydraulic pressure control device for a braking device that starts the braking system, wherein the valve piston is inhibited when the vehicle is lightly loaded.
a first spring that applies a biasing force to the valve piston that determines the starting pressure for production; and a first spring that is inserted between a protruding end of the valve piston and a base plate that is fixed to the valve housing and faces the end. to form an airtight diaphragm chamber between the base plate and the diaphragm that can abut directly or indirectly on the end portion, and connect the fluid vehicle height adjustment device and the diaphragm chamber; a pressure transmission passage that guides fluid pressure of the hydraulic vehicle height adjustment device; and a pressure transmission passage that urges the diaphragm in a direction away from the valve piston, and when the carrying load of the vehicle increases, the diaphragm is directed to the valve piston. a second spring that increases the biasing force in the direction toward the non-acting position of the valve piston by allowing the valve piston to come into contact with the valve piston; The brake fluid pressure is controlled according to the load of the vehicle, and even when the hydraulic vehicle height adjustment device is not in operation, a braking hydraulic pressure suppression effect corresponding to at least a lightly loaded vehicle can be obtained. A hydraulic pressure control device for a vehicle braking device characterized by: