JPH0158363U

JPH0158363U -

Info

Publication number: JPH0158363U
Application number: JP15479487U
Authority: JP
Priority date: 1987-10-09
Filing date: 1987-10-09
Publication date: 1989-04-12
Anticipated expiration: 2002-10-09
Also published as: JPH076047Y2

Description

[Brief explanation of the drawing]

図面は本考案よりなるアンチロツク制御装置の
一実施例を示す構成概要図を示すものである。１…ブレーキ油圧伝達経路、２…第１分岐経路
、３…第１電磁弁（常開型）、４…第２電磁弁（
常閉型）、５…リザーバ装置、６…シリンダ、７
…リザーバピストン、８…リターンスプリング、
９…リザーバ油室、１０…制御油室、１１…ＥＣ
Ｕ、１３…制御油圧導入経路、１４…制御油圧解
放経路、１５…加圧弁（常閉型）、１６…減圧弁
（常開型）、１７…アキユームレータ、１８…解
放槽、１９…ポンプ、２１…第２分岐経路、２２
…リターンチエツク弁、２３…スピードセンサ。 The drawing shows a schematic diagram of the construction of an embodiment of the anti-lock control device according to the present invention. 1... Brake hydraulic pressure transmission path, 2... First branch path, 3... First solenoid valve (normally open type), 4... Second solenoid valve (
Normally closed type), 5... Reservoir device, 6... Cylinder, 7
...Reservoir piston, 8...Return spring,
9...Reservoir oil chamber, 10...Control oil chamber, 11...EC
U, 13... Control oil pressure introduction path, 14... Control oil pressure release path, 15... Pressure valve (normally closed type), 16... Pressure reducing valve (normally open type), 17... Accumulator, 18... Release tank, 19... Pump , 21...second branch route, 22
...Return check valve, 23...Speed sensor.

Claims

[Scope of Claim for Utility Model Registration] A normally open first solenoid valve that is interposed in a brake hydraulic pressure transmission path from a master cylinder to a brake device and that closes the path upon input of a brake hydraulic pressure holding signal during antilock control; The first transmission route
a normally-closed second solenoid valve that is interposed in a path from the downstream side of the solenoid valve to the reservoir device and opens the path in response to a brake hydraulic pressure reduction or pressure increase signal during antilock control; 2 The oil pressure in the reservoir oil chamber connected to the solenoid valve is reduced by a piston that moves depending on the oil pressure in the control oil chamber.
It is provided with a built-in movable piston that pressurizes and holds it as necessary, and the control oil chamber of this reservoir device is
Brake hydraulic pressure increase and decrease during anti-lock control,
Furthermore, in an anti-lock control device connected to a pressure oil source and a release tank via a solenoid valve device that supplies and discharges pressure oil by inputting a hold signal as necessary, the brake fluid pressure transmission path and the reservoir of the reservoir device are connected to each other. 1. An anti-lock control device for a vehicle, characterized in that a branch path is provided between the oil chamber side and the brake oil chamber side, and a check valve is provided in the branch path to allow only brake pressure oil to flow from the reservoir oil chamber side.