FR3143748A1 - METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces - Google Patents

METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces Download PDF

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Publication number
FR3143748A1
FR3143748A1 FR2213537A FR2213537A FR3143748A1 FR 3143748 A1 FR3143748 A1 FR 3143748A1 FR 2213537 A FR2213537 A FR 2213537A FR 2213537 A FR2213537 A FR 2213537A FR 3143748 A1 FR3143748 A1 FR 3143748A1
Authority
FR
France
Prior art keywords
tire
coefficient
wet
ground
obtaining
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.)
Pending
Application number
FR2213537A
Other languages
French (fr)
Inventor
Jérémy VAYSSETTES
Eric Berger
Romain BUGNICOURT
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.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR2213537A priority Critical patent/FR3143748A1/en
Priority to PCT/EP2023/083387 priority patent/WO2024126034A1/en
Publication of FR3143748A1 publication Critical patent/FR3143748A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres
    • 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
    • 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
    • B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
    • 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
    • B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
    • B60T2210/10—Detection or estimation of road conditions
    • B60T2210/12—Friction
    • 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
    • B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
    • B60T2210/10—Detection or estimation of road conditions
    • B60T2210/13—Aquaplaning, hydroplaning
    • 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
    • B60T2240/00—Monitoring, detecting wheel/tire behaviour; counteracting thereof
    • B60T2240/02—Longitudinal grip

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tires In General (AREA)

Abstract

L’invention porte sur un procédé d’obtention du coefficient d’adhérence Mu du pneumatique sur un sol mouillé en condition d’utilisation sur un véhicule comprenant les étapes suivantes : Obtention (S2) d’une rigidité longitudinale de référence KXRef du pneumatique sur un sol de référence en condition humide ;Obtention (S1) d’un coefficient d’adhérence MuRef du pneumatique sur le sol de référence en condition humide ;Détermination des paramètres météorologiques (S3) lors de l’usage du pneumatique sur le véhicule ;Si le sol est en condition mouillée, détermination (S4) d’une rigidité longitudinale KXMes du pneumatique sur le sol de roulage ;Evaluation (S5) du coefficient d’adhérence Mu du pneumatique sur le sol mouillé à l’aide la formule suivante : , où le coefficient n est un nombre réel. Figure pour l’abrégé : Fig. 1The invention relates to a method for obtaining the grip coefficient Mu of the tire on a wet surface in conditions of use on a vehicle comprising the following steps: Obtaining (S2) a reference longitudinal rigidity KXRef of the tire on a reference ground in wet conditions; Obtaining (S1) an adhesion coefficient MuRef of the tire on the reference ground in wet conditions; Determination of the meteorological parameters (S3) when using the tire on the vehicle; If the ground is in a wet condition, determination (S4) of a longitudinal rigidity KXMes of the tire on the rolling ground; Evaluation (S5) of the adhesion coefficient Mu of the tire on the wet ground using the following formula:, where the coefficient n is a real number. Figure for abstract: Fig. 1

FR2213537A 2022-12-16 2022-12-16 METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces Pending FR3143748A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2213537A FR3143748A1 (en) 2022-12-16 2022-12-16 METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces
PCT/EP2023/083387 WO2024126034A1 (en) 2022-12-16 2023-11-28 Method for determining the grip coefficient of a tyre on a wet surface

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2213537A FR3143748A1 (en) 2022-12-16 2022-12-16 METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces
FR2213537 2022-12-16

Publications (1)

Publication Number Publication Date
FR3143748A1 true FR3143748A1 (en) 2024-06-21

Family

ID=85569819

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2213537A Pending FR3143748A1 (en) 2022-12-16 2022-12-16 METHOD FOR DETERMINING THE COEFFICIENT of tire grip on wet surfaces

Country Status (2)

Country Link
FR (1) FR3143748A1 (en)
WO (1) WO2024126034A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317030A1 (en) * 1993-05-21 1994-11-24 Telefunken Microelectron Method for detecting the driving state of a vehicle on a wet carriageway
GB2307555A (en) * 1995-11-24 1997-05-28 Daimler Benz Ag Early recognition of aquaplaning using resonance behaviour of tyres
DE10107862A1 (en) * 2001-02-20 2002-09-05 Conti Temic Microelectronic Determination of friction coefficient between a motor vehicle tire and a wet road using a trailing water sensor and a water spray sensor to accurately evaluate the friction coefficient and the possibility of aquaplaning
WO2003014693A1 (en) 2001-08-06 2003-02-20 Societe De Technologie Michelin Method for determining components of forces exerted on a tyre and the self-alignment torque
EP2927066A1 (en) * 2014-04-03 2015-10-07 The Goodyear Tire & Rubber Company Model-based longitudinal stiffness estimation system and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317030A1 (en) * 1993-05-21 1994-11-24 Telefunken Microelectron Method for detecting the driving state of a vehicle on a wet carriageway
GB2307555A (en) * 1995-11-24 1997-05-28 Daimler Benz Ag Early recognition of aquaplaning using resonance behaviour of tyres
DE10107862A1 (en) * 2001-02-20 2002-09-05 Conti Temic Microelectronic Determination of friction coefficient between a motor vehicle tire and a wet road using a trailing water sensor and a water spray sensor to accurately evaluate the friction coefficient and the possibility of aquaplaning
WO2003014693A1 (en) 2001-08-06 2003-02-20 Societe De Technologie Michelin Method for determining components of forces exerted on a tyre and the self-alignment torque
EP2927066A1 (en) * 2014-04-03 2015-10-07 The Goodyear Tire & Rubber Company Model-based longitudinal stiffness estimation system and method

Also Published As

Publication number Publication date
WO2024126034A1 (en) 2024-06-20

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