FR3102440B1 - CONTROL OF A BRAKING ASSIST DEVICE - Google Patents

CONTROL OF A BRAKING ASSIST DEVICE Download PDF

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Publication number
FR3102440B1
FR3102440B1 FR1911962A FR1911962A FR3102440B1 FR 3102440 B1 FR3102440 B1 FR 3102440B1 FR 1911962 A FR1911962 A FR 1911962A FR 1911962 A FR1911962 A FR 1911962A FR 3102440 B1 FR3102440 B1 FR 3102440B1
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FR
France
Prior art keywords
negative pressure
threshold value
chamber
control
source
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.)
Active
Application number
FR1911962A
Other languages
French (fr)
Other versions
FR3102440A1 (en
Inventor
Simon Bez
Thierry Perron
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.)
Stellantis Auto Sas Fr
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1911962A priority Critical patent/FR3102440B1/en
Publication of FR3102440A1 publication Critical patent/FR3102440A1/en
Application granted granted Critical
Publication of FR3102440B1 publication Critical patent/FR3102440B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components

Landscapes

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

Abstract

La présente invention a pour objet un procédé de pilotage d’un dispositif d'aide au freinage (DA) comprenant au moins un module d'assistance pneumatique de freinage (MAP) doté d’une chambre avant (CV) et d’une chambre arrière (CR) séparées l'une de l'autre par un piston (PS) qui peut être entraîné en translation par la pédale de frein (PF) lorsqu'elle est enfoncée par le pied du conducteur. Des moyens de pilotage (CC) activent une source de dépression (SD) lorsque la dépression dans la chambre arrière (CR) est comprise entre une première et une seconde valeurs seuils et désactivent la source de dépression (SD) lorsque la dépression dans la chambre arrière est en deçà de la première valeur seuil ou bien au-delà de la seconde valeur seuil. Les valeurs seuils sont déterminées en fonction d’au moins un paramètre de rodage déterminé par comparaison avec une troisième valeur seuil. Figure 1The present invention relates to a method for controlling a braking aid device (DA) comprising at least one pneumatic braking assistance module (MAP) provided with a front chamber (CV) and a chamber. rear (CR) separated from each other by a piston (PS) which can be driven in translation by the brake pedal (PF) when it is depressed by the driver's foot. Control means (CC) activate a source of negative pressure (SD) when the negative pressure in the rear chamber (CR) is between a first and a second threshold value and deactivate the source of negative pressure (SD) when the negative pressure in the chamber rear is below the first threshold value or well beyond the second threshold value. The threshold values are determined as a function of at least one running-in parameter determined by comparison with a third threshold value. Figure 1

FR1911962A 2019-10-25 2019-10-25 CONTROL OF A BRAKING ASSIST DEVICE Active FR3102440B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1911962A FR3102440B1 (en) 2019-10-25 2019-10-25 CONTROL OF A BRAKING ASSIST DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1911962A FR3102440B1 (en) 2019-10-25 2019-10-25 CONTROL OF A BRAKING ASSIST DEVICE
FR1911962 2019-10-25

Publications (2)

Publication Number Publication Date
FR3102440A1 FR3102440A1 (en) 2021-04-30
FR3102440B1 true FR3102440B1 (en) 2021-10-15

Family

ID=69468790

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1911962A Active FR3102440B1 (en) 2019-10-25 2019-10-25 CONTROL OF A BRAKING ASSIST DEVICE

Country Status (1)

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FR (1) FR3102440B1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060003138A (en) * 2004-07-05 2006-01-10 현대자동차주식회사 Vacuum pressure generate system of brake booster
FR2966410A1 (en) * 2010-10-20 2012-04-27 Peugeot Citroen Automobiles Sa Pneumatic circuit for assistance of braking of motor vehicle, has control device and sluice gate for operating accelerator, where average control laid out of conduit enters end of conduit close to vacuum source and accelerator
CN102371984A (en) * 2011-08-29 2012-03-14 温州大学 Vacuum boosting device of electric vehicle
DE102011085252A1 (en) * 2011-10-26 2013-05-02 Robert Bosch Gmbh Method and device for determining a fault condition in a brake booster system
DE102012201436A1 (en) * 2012-02-01 2013-08-01 Robert Bosch Gmbh A brake operation detecting apparatus and method for detecting an operation of a brake operating member of a brake system
GB2534889B (en) * 2015-02-03 2017-04-26 Ford Global Tech Llc Brake booster fault detection
CN105235669A (en) * 2015-10-30 2016-01-13 北京新能源汽车股份有限公司 Braking assistance control system, control method thereof and vehicle

Also Published As

Publication number Publication date
FR3102440A1 (en) 2021-04-30

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Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20210430

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Owner name: STELLANTIS AUTO SAS, FR

Effective date: 20240423