JPS59157958U

JPS59157958U - Automotive electromagnetic servo brake device

Info

Publication number: JPS59157958U
Application number: JP4081983U
Authority: JP
Inventors: 道夫吉野; 冨田　幸臣
Original assignee: マツダ株式会社
Priority date: 1983-03-22
Filing date: 1983-03-22
Publication date: 1984-10-23

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 drawings]

第１図は、本考案の実施例による電磁サーボブレーキ装
置の概略図、第２図は、第１図に示した電磁サーボブレ
ーキ装置の主要部の断面図、第３図は、該主要部の分解
斜視図、第４図は、第１図に示した電磁サーボブレーキ
装置の電気制御−路を示す回路図、第５図は、踏力セン
サと制動油圧センサに用いられる感圧ゴムシートの圧力
−抵抗特性を示す図である。１・・・ブレーキペダル、２・・・ブツシュロッド、３
　′・・・プランジャ、４・・・電磁石、５・・・ブレ
ーキマスクシリンダ、８・・・踏力センサ、９・・・制
動油圧センサ。FIG. 1 is a schematic diagram of an electromagnetic servo brake device according to an embodiment of the present invention, FIG. 2 is a sectional view of the main part of the electromagnetic servo brake device shown in FIG. 4 is a circuit diagram showing the electrical control path of the electromagnetic servo brake device shown in FIG. 1, and FIG. FIG. 3 is a diagram showing resistance characteristics. 1...Brake pedal, 2...Butsch rod, 3
′... Plunger, 4... Electromagnet, 5... Brake mask cylinder, 8... Pedal force sensor, 9... Braking oil pressure sensor.

Claims

[Scope of utility model registration request]

An electromagnetic servo brake device for an automobile that generates control hydraulic pressure in a brake mask cylinder by boosting the pedal force applied to the brake pedal using electromagnetic means, the device being provided between the piston of the brake mask cylinder and the brake pedal,
It includes a pedal force transmission member that transmits pedal force to the brake mask cylinder, and the electromagnetic means includes a plunger made of a magnetic material attached to the pedal force transmission member, and a plunger provided around the plunger, and the electromagnetic means is configured to move the plunger when the brake pedal is depressed. a magnet body provided with a plunger movement space that allows the movement of the brake pedal toward the mask cylinder; and a core having a portion that acts as a stopper to limit movement of the plunger toward the mask cylinder side by a depressing pawl within a predetermined range, and the depressing force transmitting member is configured to move together with the plunger in a normal state. However, when the brake pedal is depressed with a force exceeding a predetermined value, the plunger can independently move toward the mask cylinder even after coming into contact with a portion of the core that acts as a stopper. Electromagnetic servo brake device for automobiles.