JPS60180673U

JPS60180673U - Automobile hydraulic brake system

Info

Publication number: JPS60180673U
Application number: JP6927284U
Authority: JP
Inventors: 弘之岡; 野村　佳久
Original assignee: トヨタ自動車株式会社
Priority date: 1984-05-11
Filing date: 1984-05-11
Publication date: 1985-11-30

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]

添付図は本考案の一実施例である自動車の減圧ブレーキ
装置を示す回路図である。１０：マスクシリンダ、（１２：メインリザーバ、１８
二連通路、２０：サブリザーバ）（リザーノリ、１４ニ
ブレーキペダル（ブレーキ操作部材）、１６：ポンプ、
３２，３４：リヤホイールシリンダ、３６，４６．４８
：電磁切換弁、４２、４４．　　：フロントホイールシ
リンダ、５０゜５２．５４：電磁制御弁、６４：コント
ローラ、７０：隔壁、７２：供給口、７４：液面スイッ
チ、７６：差圧スイッチ。The attached figure is a circuit diagram showing a pressure reduction brake system for an automobile, which is an embodiment of the present invention. 10: Mask cylinder, (12: Main reservoir, 18
Dual passage, 20: sub-reservoir) (reservoir, 14 brake pedal (brake operating member), 16: pump,
32, 34: Rear wheel cylinder, 36, 46.48
: Solenoid switching valve, 42, 44. : Front wheel cylinder, 50°52.54: Solenoid control valve, 64: Controller, 70: Bulkhead, 72: Supply port, 74: Liquid level switch, 76: Differential pressure switch.

Claims

[Claims for Utility Model Registration] A mask cylinder that generates brake fluid pressure in two mutually independent pressurizing chambers in response to the operation of a brake operating member, and a common cylinder that supplies brake fluid to the two pressurizing chambers. a reservoir, a liquid pressure passage generated in one of the two pressurized chambers, and a fluid passageway for guiding the hydraulic pressure generated in one of the two pressurized chambers to the wheel cylinder of at least one brake brake that suppresses the rotation of the vehicle wheel; a second liquid passage that guides the hydraulic pressure generated in the brake to a wheel cylinder of a brake other than the brake, and a second liquid passage provided in each of the first and second liquid passages,
Switching is possible between a pressure increase permissible state in which each of the wheel cylinders is communicated with the mask cylinder, a hydraulic pressure holding state in which communication with the mask cylinder is cut off, and a pressure drop permissible state in which communication with the mask cylinder is cut off and communicated with the reservoir. possible first and second electromagnetic control valves; and controlling the first and second electromagnetic control valves so that the hydraulic pressure in each wheel cylinder is at an appropriate level while monitoring the slip state of each of the wheels. a common pump that pumps up brake fluid from the reservoir and supplies it to a portion of the first and second fluid passages connecting the mask cylinder and each electromagnetic control valve; A partition wall of a certain height is provided to partition the lower part of the lower part into two parts for supplying brake fluid to each of the two front pressure chambers, and a brake fluid supply port from the reservoir to the pump is provided. A hydraulic brake device for an automobile, characterized in that it is installed at a higher position than the upper end of the bulkhead.