JPS6470253A - Brake device having automatic liquid pressure controlling function - Google Patents

Brake device having automatic liquid pressure controlling function

Info

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
Application number
JP22586087A
Other languages
Japanese (ja)
Inventor
Hirohiko Morikawa
Hiroyoshi Kako
Noboru Noguchi
Nobuyasu Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP22586087A priority Critical patent/JPS6470253A/en
Publication of JPS6470253A publication Critical patent/JPS6470253A/en
Pending legal-status Critical Current

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.
JP22586087A 1987-09-09 1987-09-09 Brake device having automatic liquid pressure controlling function Pending JPS6470253A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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