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SE9700312D0 - Method and apparatus for testing the braking system of a vehicle - Google Patents

Method and apparatus for testing the braking system of a vehicle

Info

Publication number
SE9700312D0
SE9700312D0 SE9700312A SE9700312A SE9700312D0 SE 9700312 D0 SE9700312 D0 SE 9700312D0 SE 9700312 A SE9700312 A SE 9700312A SE 9700312 A SE9700312 A SE 9700312A SE 9700312 D0 SE9700312 D0 SE 9700312D0
Authority
SE
Sweden
Prior art keywords
pressure
force level
braking system
static pressure
testing
Prior art date
Application number
SE9700312A
Other languages
Swedish (sv)
Other versions
SE9700312L (en
SE509576C2 (en
Inventor
Uwe Eisele
Ralf Schaefer
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of SE9700312D0 publication Critical patent/SE9700312D0/en
Publication of SE9700312L publication Critical patent/SE9700312L/en
Publication of SE509576C2 publication Critical patent/SE509576C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The method involves building pressure up or lowering pressure in at least one of the wheel brakes using an electrically operated valve arrangement. A defined pressure is built up in at least one wheel brake for monitoring purposes in at least one defined operating state. The pressure is reduced again after a static pressure or force level has been reached. The static pressure or force level achieved is evaluated to detect undissolved gas in the brake fluid in the braking system. A static pressure or force level is determined as having been achieved when a certain time has elapsed after the start of the pressure build-up.
SE9700312A 1996-02-03 1997-01-31 Method and apparatus for testing the braking system of a vehicle SE509576C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996103867 DE19603867A1 (en) 1996-02-03 1996-02-03 Motor vehicle brake monitoring method

Publications (3)

Publication Number Publication Date
SE9700312D0 true SE9700312D0 (en) 1997-01-31
SE9700312L SE9700312L (en) 1997-08-04
SE509576C2 SE509576C2 (en) 1999-02-08

Family

ID=7784401

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9700312A SE509576C2 (en) 1996-02-03 1997-01-31 Method and apparatus for testing the braking system of a vehicle

Country Status (4)

Country Link
JP (1) JPH09207763A (en)
DE (1) DE19603867A1 (en)
FR (1) FR2745254A1 (en)
SE (1) SE509576C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113740073A (en) * 2021-08-19 2021-12-03 中国第一汽车股份有限公司 Detection method and device for wheel type vehicle during slope parking and vehicle sliding
CN114153195A (en) * 2021-11-30 2022-03-08 中国重汽集团济南动力有限公司 Automatic offline detection and calibration system for vehicle electric control braking function

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6942304B1 (en) 1998-02-10 2005-09-13 Continental Teves Ag & Co., Ohg Electronically controllable brake actuating system
DE10147181A1 (en) * 2001-05-30 2002-12-05 Continental Teves Ag & Co Ohg Brake-by-wire electrohydraulic braking system for automobile has hydraulic auxiliary pressure source coupled to inlet valve for one wheel brake via switching valve with parallel piston-cylinder device
EP1436184B1 (en) 2001-10-12 2005-03-23 Continental Teves AG & Co. oHG Method for monitoring an electrohydraulic vehicle braking system
JP2005512878A (en) * 2001-12-20 2005-05-12 コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト Method for detecting gas or air with an electrohydraulic brake device for automobiles
DE10235373B4 (en) * 2002-08-02 2011-04-07 Robert Bosch Gmbh Method for testing a hydraulic vehicle brake system for undissolved gas in the brake fluid
DE10252728B4 (en) * 2002-08-13 2011-02-17 Continental Teves Ag & Co. Ohg Electrohydraulic brake system and method for its monitoring
DE10253296A1 (en) * 2002-11-15 2004-05-27 Robert Bosch Gmbh Car hydraulic brake undissolved gas test procedure, compares regression lines fitted to measured pressure versus piston travel with predicted values
US20060186735A1 (en) * 2003-07-08 2006-08-24 Continental Teves Ag & Co., Ohg Method for monitoring a hydro-electrical brake system
CN101907503B (en) * 2010-06-29 2012-01-11 浙江大学 Hydraulic motor driven drum-type braking test device
DE102013223363A1 (en) 2012-11-20 2014-05-22 Ford Global Technologies, Llc Method for venting of hydraulic brake system of vehicle e.g. passenger car, involves applying higher pressure to brake assembly by pumping device for given period, without opening vent valves
US10710569B2 (en) 2013-11-20 2020-07-14 Ford Global Technologies, Llc Method for bleeding a vehicle brake system
CN115503673B (en) * 2022-10-09 2025-02-14 岚图汽车科技有限公司 A method, device, equipment and storage medium for processing soft braking of a vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014314A1 (en) * 1990-05-04 1991-12-05 Bosch Gmbh Robert METHOD FOR MONITORING THE BRAKE BLEEDING CONDITION

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113740073A (en) * 2021-08-19 2021-12-03 中国第一汽车股份有限公司 Detection method and device for wheel type vehicle during slope parking and vehicle sliding
CN113740073B (en) * 2021-08-19 2023-09-26 中国第一汽车股份有限公司 Method and device for detecting sliding of wheeled vehicle on slope
CN114153195A (en) * 2021-11-30 2022-03-08 中国重汽集团济南动力有限公司 Automatic offline detection and calibration system for vehicle electric control braking function
CN114153195B (en) * 2021-11-30 2024-05-10 中国重汽集团济南动力有限公司 Automatic offline detection and calibration system for vehicle electric control braking function

Also Published As

Publication number Publication date
JPH09207763A (en) 1997-08-12
FR2745254A1 (en) 1997-08-29
SE9700312L (en) 1997-08-04
SE509576C2 (en) 1999-02-08
DE19603867A1 (en) 1997-08-07

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Legal Events

Date Code Title Description
NUG Patent has lapsed