JPS6444371A - Braking hydraulic pressure control method for automobile hydraulic pressure type brake - Google Patents

Braking hydraulic pressure control method for automobile hydraulic pressure type brake

Info

Publication number
JPS6444371A
JPS6444371A JP19960687A JP19960687A JPS6444371A JP S6444371 A JPS6444371 A JP S6444371A JP 19960687 A JP19960687 A JP 19960687A JP 19960687 A JP19960687 A JP 19960687A JP S6444371 A JPS6444371 A JP S6444371A
Authority
JP
Japan
Prior art keywords
hydraulic pressure
braking hydraulic
wheel
judged
prescribed
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.)
Granted
Application number
JP19960687A
Other languages
Japanese (ja)
Other versions
JP2709923B2 (en
Inventor
Satoru Funahashi
Seiichi Ishizeki
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP19960687A priority Critical patent/JP2709923B2/en
Publication of JPS6444371A publication Critical patent/JPS6444371A/en
Application granted granted Critical
Publication of JP2709923B2 publication Critical patent/JP2709923B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Regulating Braking Force (AREA)

Abstract

PURPOSE:To enhance breaking efficiency, when it is judged on the basis of the time interval or the like between adjacent maximum values of wheel speed that the vehicle is running on a rough road, by increasing the wheel speed lowering rate or the like in which the braking hydraulic pressure is to be reduced in the subsequent pressure- reducing/repressurizing cycle, by a prescribed quantity. CONSTITUTION:At the time of braking when a brake pedal 1 is depressed, a control circuit 7 keeps the braking hydraulic pressure when the wheel speed lowering rate due to a wheel-speed sensor 6 exceeds a prescribed value, and further outputs a control signal for reducing braking hydraulic pressure when the locking of wheel is judged, to an actuator 5. In this case, it is judged that the vehicle is running on a rough road, when the time interval between adjacent maximum values of wheel speed which is decreasing while pulsating by the repeat of increasing/decreasing of braking hydraulic pressure is within a prescribed time, and further when the vehicle speed decreasing rate if greater than a prescribed value. When it is judged to be in rough road running, the control for increasing, by a prescribed amount, the set value of the wheel-speed lowering rate or lowering quantity in which the braking hydraulic pressure is to be reduced is repeatedly carried out for a set time.
JP19960687A 1987-08-10 1987-08-10 Brake hydraulic pressure control method for hydraulic brake system for automobile Expired - Lifetime JP2709923B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19960687A JP2709923B2 (en) 1987-08-10 1987-08-10 Brake hydraulic pressure control method for hydraulic brake system for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19960687A JP2709923B2 (en) 1987-08-10 1987-08-10 Brake hydraulic pressure control method for hydraulic brake system for automobile

Publications (2)

Publication Number Publication Date
JPS6444371A true JPS6444371A (en) 1989-02-16
JP2709923B2 JP2709923B2 (en) 1998-02-04

Family

ID=16410658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19960687A Expired - Lifetime JP2709923B2 (en) 1987-08-10 1987-08-10 Brake hydraulic pressure control method for hydraulic brake system for automobile

Country Status (1)

Country Link
JP (1) JP2709923B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02220959A (en) * 1989-02-21 1990-09-04 Sumitomo Electric Ind Ltd Anti lock brake controller
JPH02136737U (en) * 1989-04-20 1990-11-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02220959A (en) * 1989-02-21 1990-09-04 Sumitomo Electric Ind Ltd Anti lock brake controller
JPH02136737U (en) * 1989-04-20 1990-11-14

Also Published As

Publication number Publication date
JP2709923B2 (en) 1998-02-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term