JPS59125464U

JPS59125464U - Brake device

Info

Publication number: JPS59125464U
Application number: JP1907383U
Authority: JP
Inventors: 谷　正紀; 江藤　新一; 船越　剛
Original assignee: 三菱自動車工業株式会社
Priority date: 1983-02-14
Filing date: 1983-02-14
Publication date: 1984-08-23
Also published as: JPH0137963Y2

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図は本考案の第１実施例を示す油圧サーボブレーキ
装置の概要を示すブロック図、第２図は第１図の可変絞
り弁、倍力装置及び駆動装置を示す詳細断面図、第３図
は第１図の固定圧力制御弁装置の詳細断面図、第４図は
ペダル踏力に対するブレーキ力の特性図、第５図は前後
輪ブレーキ力の配分特性図、第６図は本考案の第２実施
例を示すエアサーボブレーキ装置の概要を示すブロック
図、第７図は第６図の可変圧力調整弁及び駆動装置を示
す詳細断面図、第８図は第６図の倍力装置の詳細断面図
、第９図は第２実施例の変形例を示す可変圧力調整弁の
詳細断面図である。１・・・・・・リザーバ、２・・・・・・油圧源、３・
・・・・・可変絞り弁、４，１６・・・・・・倍力装置
、５・・・・・・ペダル、６・・・・・・マスターシリ
ンダ、７・・・・・・前輪ブレーキ、８・・・・・・固
定圧力制御弁装置、９・・・・・・後輪ブレーキ、１０
・・・・・・車両重量センサ、１１・・・・・・コント
ローラ、１２・・・・・・駆動装置、１３・・・・・・
空気圧源、１４・・・・・・アキュムレータ、１５・・
・・・・可変圧力調整弁、８２゜８２’、８２″・・・
・・・圧力制御弁、８３．８４・・・・・・切換弁。ｔｉｔ　　１１２１１Ｕ　　　／Ｊ、）　　Ｉ’−１− ／　　　　　　　　　）〃　　　　　　　沼FIG. 1 is a block diagram showing an overview of a hydraulic servo brake device according to a first embodiment of the present invention, FIG. 2 is a detailed sectional view showing the variable throttle valve, booster, and drive device shown in FIG. 1, and FIG. The figure is a detailed sectional view of the fixed pressure control valve device shown in Figure 1, Figure 4 is a characteristic diagram of brake force with respect to pedal depression force, Figure 5 is a characteristic diagram of distribution of brake force between front and rear wheels, and Figure 6 is a diagram of the distribution characteristic of brake force of the front and rear wheels. 7 is a detailed sectional view showing the variable pressure regulating valve and drive device shown in FIG. 6, and FIG. 8 is a detailed diagram of the booster shown in FIG. 6. 9 is a detailed sectional view of a variable pressure regulating valve showing a modification of the second embodiment. 1...Reservoir, 2...Hydraulic power source, 3.
...Variable throttle valve, 4, 16... Boost device, 5... Pedal, 6... Master cylinder, 7... Front wheel brake , 8... Fixed pressure control valve device, 9... Rear wheel brake, 10
... Vehicle weight sensor, 11 ... Controller, 12 ... Drive device, 13 ...
Air pressure source, 14... Accumulator, 15...
...Variable pressure regulating valve, 82°82', 82''...
...Pressure control valve, 83.84...Switching valve. tit 112 11U /J,) I'-1- /) 〃 Swamp

Claims

[Scope of utility model registration request]

a fluid pressure source, a booster that is actuated by fluid from the fluid pressure source in response to the depression force of the brake pedal and transmits amplified output to the master cylinder, and actuated by the brake fluid pressure generated by the master cylinder. a control valve provided between the fluid pressure source and the booster to adjust the pressure or flow rate of the fluid supplied to the booster; and the master cylinder. A plurality of brake fluids are provided between the rear wheel brake and reduce the brake fluid pressure supplied to the rear wheel brake in response to at least the pressure within the rear wheel brake, and when the same pressure exceeds a predetermined pressure value. The pressure control valve has different characteristics, and the adjustment valve is configured to change the pressure or flow rate of the fluid supplied to the booster to change the output of the booster in response to changes in vehicle weight. A brake device comprising: a first means for controlling operation; and a second means for selectively operating one of the plurality of pressure control valves according to the weight of the vehicle.