JPS6447659A - Hydraulic brake device - Google Patents

Hydraulic brake device

Info

Publication number
JPS6447659A
JPS6447659A JP62202250A JP20225087A JPS6447659A JP S6447659 A JPS6447659 A JP S6447659A JP 62202250 A JP62202250 A JP 62202250A JP 20225087 A JP20225087 A JP 20225087A JP S6447659 A JPS6447659 A JP S6447659A
Authority
JP
Japan
Prior art keywords
liquid pressure
operated
pressure
wheel cylinders
changeover valve
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
JP62202250A
Other languages
Japanese (ja)
Inventor
Michiji Nishii
Yoshihiko Tada
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP62202250A priority Critical patent/JPS6447659A/en
Priority to US07/230,877 priority patent/US4940290A/en
Priority to DE3827507A priority patent/DE3827507C2/en
Publication of JPS6447659A publication Critical patent/JPS6447659A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To ensure brake liquid pressure from a master cylinder for both front and rear wheels when a dynamic hydraulic controller is disabled, by coupling at least one of two liquid pressure systems with the dynamic hydraulic controller thereby shortening the brake pedal stroke. CONSTITUTION:A changeover valve 60 communicates wheel cylinders 53a, 54a with a port 1g when it is not excited or operated and communicated the wheel cylinders 53a, 54a with a port 1d when it is excited or operated. A pressure sensor 66 is arranged in a liquid pressure path 73 and the changeover valve 60 is driven through an actuator 67 corresponding to the pressure detected through the pressure sensor 66. In other word, the changeover valve 60 is not operated when a predetermined boosted liquid pressure exists in the liquid pressure path 73, but operated when the pressure in the liquid pressure path 73 drops below a predetermined level so as to communicate the wheel cylinders 53a, 54a with the liquid pressure path 72. Consequently, brake force can be ensured for all wheels 51-54 even upon missing of power liquid pressure.
JP62202250A 1987-08-13 1987-08-13 Hydraulic brake device Pending JPS6447659A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62202250A JPS6447659A (en) 1987-08-13 1987-08-13 Hydraulic brake device
US07/230,877 US4940290A (en) 1987-08-13 1988-08-11 Hydraulic braking system
DE3827507A DE3827507C2 (en) 1987-08-13 1988-08-12 Hydraulic braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62202250A JPS6447659A (en) 1987-08-13 1987-08-13 Hydraulic brake device

Publications (1)

Publication Number Publication Date
JPS6447659A true JPS6447659A (en) 1989-02-22

Family

ID=16454434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62202250A Pending JPS6447659A (en) 1987-08-13 1987-08-13 Hydraulic brake device

Country Status (1)

Country Link
JP (1) JPS6447659A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329817A1 (en) * 1992-09-04 1994-03-10 Aisin Seiki Brake system for rear wheels of motor vehicle - feeds brake pressure to front and rear wheel cylinders equalised upon faulty functioning of antilocking protection adjustment
JP2002308316A (en) * 2001-04-16 2002-10-23 Yuji Seki Case having timing unsealing function
JP2020104641A (en) * 2018-12-27 2020-07-09 株式会社アドヴィックス Vehicular braking device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329817A1 (en) * 1992-09-04 1994-03-10 Aisin Seiki Brake system for rear wheels of motor vehicle - feeds brake pressure to front and rear wheel cylinders equalised upon faulty functioning of antilocking protection adjustment
US5393131A (en) * 1992-09-04 1995-02-28 Aisin Seiki Kabushiki Kaisha Hydraulic brake system with enhanced braking force for rear wheels
DE4329817C2 (en) * 1992-09-04 2001-12-06 Aisin Seiki Brake system for motor vehicle rear wheels
JP2002308316A (en) * 2001-04-16 2002-10-23 Yuji Seki Case having timing unsealing function
JP2020104641A (en) * 2018-12-27 2020-07-09 株式会社アドヴィックス Vehicular braking device

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