FR3122630B1 - Emergency braking method, control unit implementing such a method and vehicle comprising such a unit - Google Patents

Emergency braking method, control unit implementing such a method and vehicle comprising such a unit Download PDF

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Publication number
FR3122630B1
FR3122630B1 FR2104798A FR2104798A FR3122630B1 FR 3122630 B1 FR3122630 B1 FR 3122630B1 FR 2104798 A FR2104798 A FR 2104798A FR 2104798 A FR2104798 A FR 2104798A FR 3122630 B1 FR3122630 B1 FR 3122630B1
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France
Prior art keywords
clamping force
vehicle
emergency braking
unit
control unit
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
FR2104798A
Other languages
French (fr)
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FR3122630A1 (en
Inventor
Carlos Ramirez
Damian Janikowski
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.)
Hitachi Astemo France SAS
Original Assignee
Foundation Brakes France SAS
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Filing date
Publication date
Application filed by Foundation Brakes France SAS filed Critical Foundation Brakes France SAS
Priority to FR2104798A priority Critical patent/FR3122630B1/en
Publication of FR3122630A1 publication Critical patent/FR3122630A1/en
Application granted granted Critical
Publication of FR3122630B1 publication Critical patent/FR3122630B1/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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/174—Using electrical or electronic regulation means to control braking characterised by using special control logic, e.g. fuzzy logic, neural computing
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
    • B60T8/1761—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
    • B60T8/17616—Microprocessor-based systems

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Regulating Braking Force (AREA)

Abstract

L’invention se rapporte à un procédé de freinage d’urgence d’un véhicule mis en œuvre au moyen d’au moins un frein de stationnement du véhicule. Le procédé comprend les étapes suivantes : application par le frein de stationnement d’une force de serrage croissante jusqu’à atteindre une force de serrage cible (TCF) ou qu’un coefficient de glissement atteigne un coefficient de glissement seuil. Lorsque cette dernière condition est rempliée, correction de la force de serrage cible (TCF) et diminution de la force de serrage appliquée. La force de serrage cible corrigée étant déterminée au moyen d’un premier réseau de neurones récurrents à mémoire court et long terme, dénommé premier réseau de neurones LSTM. Figure pour l’abrégé : figure 3The invention relates to a method of emergency braking of a vehicle implemented by means of at least one parking brake of the vehicle. The method includes the following steps: application by the parking brake of an increasing clamping force until a target clamping force (TCF) is reached or a slip coefficient reaches a threshold slip coefficient. When this last condition is met, correction of the target clamping force (TCF) and reduction of the applied clamping force. The corrected target clamping force being determined by means of a first network of recurrent short- and long-term memory neurons, referred to as the first LSTM neural network. Figure for abstract: Figure 3

FR2104798A 2021-05-06 2021-05-06 Emergency braking method, control unit implementing such a method and vehicle comprising such a unit Active FR3122630B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2104798A FR3122630B1 (en) 2021-05-06 2021-05-06 Emergency braking method, control unit implementing such a method and vehicle comprising such a unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2104798A FR3122630B1 (en) 2021-05-06 2021-05-06 Emergency braking method, control unit implementing such a method and vehicle comprising such a unit
FR2104798 2021-05-06

Publications (2)

Publication Number Publication Date
FR3122630A1 FR3122630A1 (en) 2022-11-11
FR3122630B1 true FR3122630B1 (en) 2023-03-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR2104798A Active FR3122630B1 (en) 2021-05-06 2021-05-06 Emergency braking method, control unit implementing such a method and vehicle comprising such a unit

Country Status (1)

Country Link
FR (1) FR3122630B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139315A (en) * 1991-02-28 1992-08-18 General Motors Corporation Vehicle parking brake system and method
ATE481280T1 (en) * 2002-12-13 2010-10-15 Continental Teves Ag & Co Ohg METHOD FOR ADAPTIVE BRAKE TORQUE CONTROL
DE102006058566A1 (en) * 2006-12-12 2008-06-19 Siemens Ag Vibration and noise minimizing brake control
FR3088274B1 (en) 2018-11-12 2022-06-24 Foundation Brakes France METHOD FOR MANUFACTURING A BRAKING SYSTEM OF A VEHICLE USING Fuzzy Logic

Also Published As

Publication number Publication date
FR3122630A1 (en) 2022-11-11

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