BR112023004834A2 - METHOD AND DEVICE OF LEAK DETECTION - Google Patents

METHOD AND DEVICE OF LEAK DETECTION

Info

Publication number
BR112023004834A2
BR112023004834A2 BR112023004834A BR112023004834A BR112023004834A2 BR 112023004834 A2 BR112023004834 A2 BR 112023004834A2 BR 112023004834 A BR112023004834 A BR 112023004834A BR 112023004834 A BR112023004834 A BR 112023004834A BR 112023004834 A2 BR112023004834 A2 BR 112023004834A2
Authority
BR
Brazil
Prior art keywords
condition
braking system
consistent
determined
leak detection
Prior art date
Application number
BR112023004834A
Other languages
Portuguese (pt)
Inventor
Xiong Jin
Liu Shuli
Original Assignee
Byd 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 Byd Co Ltd filed Critical Byd Co Ltd
Publication of BR112023004834A2 publication Critical patent/BR112023004834A2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

MÉTODO E APARELHO DE DETECÇÃO DE VAZAMENTO. Modalidades da presente revelação fornecem um método e aparelho de detecção de vazamento para um sistema de frenagem de um veículo. Especificamente, é determinado, com base em um intervalo de pressurização de um motor de bomba do sistema de frenagem do veículo, se uma condição atual é consistente com uma primeira condição, é determinado, com base em um valor de pressão alvo de cilindro mestre, se o sistema de frenagem está em uma condição operacional estável se a condição atual for consistente com a primeira condição, é determinado, com base em uma mudança de pressão de um acumulador de energia do sistema de frenagem, se a condição atual é consistente com uma segunda condição se o sistema de frenagem estiver na condição de operação estável e é determinado que o sistema de frenagem tem uma falha de vazamento e as informações de falha são enviadas a um condutor se a condição atual for consistente com a segunda condição. O condutor pode tomar as medidas correspondentes a tempo de acordo com as informações de falha correspondentes, garantindo-se, assim, a condução segura do veículo.METHOD AND APPARATUS OF LEAK DETECTION. Embodiments of the present disclosure provide a leak detection method and apparatus for a vehicle braking system. Specifically, it is determined, based on a pressurization range of a vehicle braking system pump motor, whether a current condition is consistent with a first condition, it is determined, based on a target master cylinder pressure value, whether the braking system is in a stable operating condition if the current condition is consistent with the first condition, it is determined, based on a pressure change of a braking system energy accumulator, whether the current condition is consistent with a second condition if the braking system is in the stable operating condition and it is determined that the braking system has a leak fault and the fault information is sent to a driver if the current condition is consistent with the second condition. The driver can take the corresponding measures in time according to the corresponding fault information, thus ensuring the safe driving of the vehicle.

BR112023004834A 2020-09-25 2021-09-24 METHOD AND DEVICE OF LEAK DETECTION BR112023004834A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011026171.3A CN114248748B (en) 2020-09-25 2020-09-25 Method and device for detecting leakage of brake system of vehicle
PCT/CN2021/120192 WO2022063211A1 (en) 2020-09-25 2021-09-24 Fluid leakage detection method and device for braking system of vehicle

Publications (1)

Publication Number Publication Date
BR112023004834A2 true BR112023004834A2 (en) 2023-04-18

Family

ID=80789383

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023004834A BR112023004834A2 (en) 2020-09-25 2021-09-24 METHOD AND DEVICE OF LEAK DETECTION

Country Status (3)

Country Link
CN (1) CN114248748B (en)
BR (1) BR112023004834A2 (en)
WO (1) WO2022063211A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115257685B (en) * 2022-08-31 2023-08-29 三一汽车起重机械有限公司 Air leakage monitoring method for vehicle brake air circuit

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3881553B2 (en) * 2002-01-11 2007-02-14 トヨタ自動車株式会社 Travel control device
JP2004345403A (en) * 2003-05-20 2004-12-09 Toyota Motor Corp Brake controlling device
CN100354167C (en) * 2004-10-12 2007-12-12 丰田自动车株式会社 Braking controller and its fault diagnostic method
WO2010109525A1 (en) * 2009-03-25 2010-09-30 トヨタ自動車株式会社 Brake controlling device
JP5641138B2 (en) * 2011-06-13 2014-12-17 トヨタ自動車株式会社 Hydraulic pressure generator and hydraulic brake system
CN103529822B (en) * 2013-10-15 2016-04-13 北京经纬恒润科技有限公司 A kind of vehicle failure detection method and device
DE102015219905A1 (en) * 2015-10-14 2017-04-20 Continental Teves Ag & Co. Ohg Method for determining a leakage of a hydraulic brake system of a vehicle
KR20170065827A (en) * 2015-12-04 2017-06-14 주식회사 만도 Electric brake system and method for leak check of the same
KR102443067B1 (en) * 2016-02-02 2022-09-14 주식회사 만도 Electric brake system and method thereof
JP2018001973A (en) * 2016-07-01 2018-01-11 日立オートモティブシステムズ株式会社 Brake device and liquid leakage detection method of brake device
CN107117155A (en) * 2017-04-26 2017-09-01 北京新能源汽车股份有限公司 Fault detection method, device and the automobile of the force aid system for braking of electric automobile
DE102017223408A1 (en) * 2017-12-20 2019-06-27 Continental Teves Ag & Co. Ohg Method for determining fault conditions of a brake system and brake system
CN208485595U (en) * 2018-07-10 2019-02-12 徐州工业职业技术学院 A kind of brake fluid detection supplementary device
KR102644365B1 (en) * 2018-07-11 2024-03-07 현대자동차주식회사 Sensing system and method for oil leak of electric brake system
DE102018212016A1 (en) * 2018-07-19 2020-01-23 Robert Bosch Gmbh Method for testing a hydraulic vehicle brake system for leaks
CN111376883B (en) * 2018-12-29 2021-08-10 比亚迪股份有限公司 Vehicle and vacuum pump control method and device thereof
CN110696804B (en) * 2019-11-14 2020-11-27 中车株洲电力机车有限公司 Leakage detection method and device for brake system

Also Published As

Publication number Publication date
CN114248748A (en) 2022-03-29
WO2022063211A1 (en) 2022-03-31
CN114248748B (en) 2023-03-24

Similar Documents

Publication Publication Date Title
BR112023004834A2 (en) METHOD AND DEVICE OF LEAK DETECTION
BRPI0706698A8 (en) Method and system for increasing the accuracy of the electrical braking retention force
BR112014003284A2 (en) brake drive unit
BR112013009678A2 (en) BRAKING FORCE CONTROL DEVICE FOR A VEHICLE
US9776613B2 (en) Abnormal detecting system and method for a pneumatic brake
BR112015007831A2 (en) method for operating electrically operable parking brake system and control device for electrically operable parking brake system
BR112016029196A2 (en) control of a combustion engine in a vehicle
BR112018016888A2 (en) rail vehicle braking system and rail vehicle braking method comprising such a system
BR112015024404A2 (en) vehicle brake system
BR112018008495A2 (en) idle stop control method and idle stop control device
BR112014026805A2 (en) vehicle control device
BR112014026223A2 (en) method for generating action recommendations for a rail vehicle driver or control signals for the rail vehicle, driver assistance system for generating action recommendations for a rail vehicle driver or control signals for the rail vehicle and rail vehicle
CN111615475A (en) Vehicle braking system and self-diagnostic test
CN204330348U (en) For the reliability test of brake system of car and pipeline
CN102180161A (en) Electric auxiliary brake system of electric automobile
BR112016001827A2 (en) process and system for determining a pressure relationship between a theoretical tire pressure and a current tire pressure for a vehicle tire
CN106004826B (en) The braking method of the half decoupling braking system for new-energy automobile regenerative braking
BR112015016856A2 (en) method and device for determining energy consumption when driving a vehicle
JP2017007487A (en) Vehicular brake device
BR112012033351A2 (en) "braking device, and vehicle"
BR112016004336A2 (en) driver braking demand indicator device for a heavy vehicle
BR112018011297A2 (en) method and device for determining a measure of brake system use during the operation of a vehicle
CN103481883A (en) Vacuum boosting system and method of electric automobile
CN104527625A (en) ABS and method for conducting driving brake pipeline failure test through ABS
BR112015011870A2 (en) method and device for operating a high pressure fuel pump, and system

Legal Events

Date Code Title Description
B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]