JPS6470253A - Brake device having automatic liquid pressure controlling function - Google Patents
Brake device having automatic liquid pressure controlling functionInfo
- Publication number
- JPS6470253A JPS6470253A JP22586087A JP22586087A JPS6470253A JP S6470253 A JPS6470253 A JP S6470253A JP 22586087 A JP22586087 A JP 22586087A JP 22586087 A JP22586087 A JP 22586087A JP S6470253 A JPS6470253 A JP S6470253A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- control valve
- pressure
- liquid pressure
- operating pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Regulating Braking Force (AREA)
Abstract
PURPOSE:To make the feeding/discharging flow rate of an operating pressure constant and improve accuracy by providing a liquid pressure control valve midway in a brake piping from a master cylinder and providing pilot type variable throttle devices in parallel to an electromagnetic control valve for controlling the operating pressure of the liquid pressure control valve. CONSTITUTION:Braking pressure from a master cylinder 10 due to the operation of a brake pedal 12 is fed into a wheel cylinder 14 via a piping 16, a liquid pressure control valve 20, a bypass valve 22, and a piping 18 to carry out of prescribed braking action. A control piston 36 for driving a cut valve 32 is provided on the liquid pressure control valve 20 and controlled by the operating pressure of a liquid chamber 38. The control of the operating pressure of the liquid chamber 38 is carried out by an electromagnetic control valve 54, and the feeding/discharging of the operating pressure is carried out via pilot type variable throttle devices 38, 66 which are provided in parallel. In this case, the flowing velocity of the operating liquid into and from the liquid chamber 38 is made always constant regardless of the variation in the liquid pressure of the liquid passages 48, 62, 68, thereby, improving the accuracy of the liquid pressure control of the wheel cylinder 14 by means of the switchover of the electromagnetic control valve 54.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22586087A JPS6470253A (en) | 1987-09-09 | 1987-09-09 | Brake device having automatic liquid pressure controlling function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22586087A JPS6470253A (en) | 1987-09-09 | 1987-09-09 | Brake device having automatic liquid pressure controlling function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6470253A true JPS6470253A (en) | 1989-03-15 |
Family
ID=16835981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22586087A Pending JPS6470253A (en) | 1987-09-09 | 1987-09-09 | Brake device having automatic liquid pressure controlling function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6470253A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4957330A (en) * | 1988-02-27 | 1990-09-18 | Toyota Jidosha Kabushiki Kaisha | Braking device having an automatic fluid pressure regulating function |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5671646A (en) * | 1979-11-12 | 1981-06-15 | Akebono Brake Ind Co Ltd | Antiskid apparatus |
JPS62152956A (en) * | 1985-12-26 | 1987-07-07 | Akebono Brake Res & Dev Center Ltd | Antiskid controller for vehicle |
-
1987
- 1987-09-09 JP JP22586087A patent/JPS6470253A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5671646A (en) * | 1979-11-12 | 1981-06-15 | Akebono Brake Ind Co Ltd | Antiskid apparatus |
JPS62152956A (en) * | 1985-12-26 | 1987-07-07 | Akebono Brake Res & Dev Center Ltd | Antiskid controller for vehicle |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4957330A (en) * | 1988-02-27 | 1990-09-18 | Toyota Jidosha Kabushiki Kaisha | Braking device having an automatic fluid pressure regulating function |
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