FR3120589B1 - Servomoteur d’assistance pneumatique au freinage a fonctionnement securise - Google Patents

Servomoteur d’assistance pneumatique au freinage a fonctionnement securise Download PDF

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Publication number
FR3120589B1
FR3120589B1 FR2102556A FR2102556A FR3120589B1 FR 3120589 B1 FR3120589 B1 FR 3120589B1 FR 2102556 A FR2102556 A FR 2102556A FR 2102556 A FR2102556 A FR 2102556A FR 3120589 B1 FR3120589 B1 FR 3120589B1
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FR
France
Prior art keywords
rear chamber
safe operation
chambers
pneumatic braking
braking assist
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
FR2102556A
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English (en)
Other versions
FR3120589A1 (fr
Inventor
Simon Bez
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 FR2102556A priority Critical patent/FR3120589B1/fr
Publication of FR3120589A1 publication Critical patent/FR3120589A1/fr
Application granted granted Critical
Publication of FR3120589B1 publication Critical patent/FR3120589B1/fr
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
    • B60T13/56—Vacuum systems indirect, i.e. vacuum booster units with two-chamber booster units
    • 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
    • B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

L’invention concerne un servomoteur d'assistance pneumatique au freinage, du type comprenant une enceinte (2) comportant deux chambres (2A, 2B) séparées par une membrane (3) déplaçable, la première (2A) des deux chambres (2A, 2B) est dite chambre avant, la seconde (2B) des deux chambres (2A, 2B) étant dite chambre arrière, la chambre arrière (2B) comportant un clapet d’alimentation (4) adaptée pour être reliée à une source de vide pour créer une dépression dans ladite chambre arrière (2B), caractérisé en ce que la chambre arrière (2B) comporte un clapet de sécurité (5) adapté pour s’ouvrir au-dessus d’un seuil critique de dépression dans ladite chambre arrière (2B), ledit clapet de sécurité (5) en position ouverte, reliant ladite chambre arrière (2B) à la pression atmosphérique. Fig. 1
FR2102556A 2021-03-15 2021-03-15 Servomoteur d’assistance pneumatique au freinage a fonctionnement securise Active FR3120589B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102556A FR3120589B1 (fr) 2021-03-15 2021-03-15 Servomoteur d’assistance pneumatique au freinage a fonctionnement securise

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102556 2021-03-15
FR2102556A FR3120589B1 (fr) 2021-03-15 2021-03-15 Servomoteur d’assistance pneumatique au freinage a fonctionnement securise

Publications (2)

Publication Number Publication Date
FR3120589A1 FR3120589A1 (fr) 2022-09-16
FR3120589B1 true FR3120589B1 (fr) 2023-02-10

Family

ID=75690519

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102556A Active FR3120589B1 (fr) 2021-03-15 2021-03-15 Servomoteur d’assistance pneumatique au freinage a fonctionnement securise

Country Status (1)

Country Link
FR (1) FR3120589B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835893B2 (ja) * 1978-01-23 1983-08-05 トヨタ自動車株式会社 流体圧利用の倍力装置
AU545569B2 (en) * 1982-09-16 1985-07-18 Honda Giken Kogyo Kabushiki Kaisha Vacuum source device
DE3914955A1 (de) * 1989-05-06 1990-11-08 Teves Gmbh Alfred Bremsdruckgeber fuer eine mit unterdruck betriebene bremsanlage mit blockierschutzregelung

Also Published As

Publication number Publication date
FR3120589A1 (fr) 2022-09-16

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Legal Events

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PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20220916

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Year of fee payment: 3

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Year of fee payment: 4

CD Change of name or company name

Owner name: STELLANTIS AUTO SAS, FR

Effective date: 20240423