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FR3153025B1 - Tire optimized for road behavior and rolling resistance - Google Patents

Tire optimized for road behavior and rolling resistance

Info

Publication number
FR3153025B1
FR3153025B1 FR2309707A FR2309707A FR3153025B1 FR 3153025 B1 FR3153025 B1 FR 3153025B1 FR 2309707 A FR2309707 A FR 2309707A FR 2309707 A FR2309707 A FR 2309707A FR 3153025 B1 FR3153025 B1 FR 3153025B1
Authority
FR
France
Prior art keywords
layer
rolling resistance
esc
crown
road behavior
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
FR2309707A
Other languages
French (fr)
Other versions
FR3153025A1 (en
Inventor
Gael Roty
Claudine Noirfalise
Dan Frelicot
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 FR2309707A priority Critical patent/FR3153025B1/en
Priority to PCT/EP2024/074416 priority patent/WO2025056348A1/en
Publication of FR3153025A1 publication Critical patent/FR3153025A1/en
Application granted granted Critical
Publication of FR3153025B1 publication Critical patent/FR3153025B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B60C11/0058—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different cap rubber layers in the axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • B60C11/0075—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers with different base rubber layers in the axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B60C2011/0025—Modulus or tan delta
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B60C2011/0033—Thickness of the tread

Landscapes

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

Abstract

L’invention concerne un pneumatique (1) doté d’un sommet (4) optimisé pour un compromis de performances avantageux en comportement routier et en résistance au roulement. Ledit sommet (4) comprend une armature de sommet (20), une sous-couche (7), et une bande de roulement (6). La sous-couche (7) comporte une première couche de base (71), radialement extérieurement à l’armature de sommet (20), et une deuxième couche de recouvrement (72), radialement extérieurement à la couche de base (71) et radialement intérieurement à la bande de roulement (6). La couche de base a un module élastique dynamique de cisaillement G1* inférieur à 1.5 MPa, et quant à la couche de recouvrement, son module élastique de cisaillement est supérieur à 5 MPa. L’épaisseur E72 (mm) est supérieure ou égale à (0,53*ESC + 0,1) et est inférieure ou égale à (0,60*Esc + 1,1) quand ESC est comprise entre [1 ; 3,5] mm. Figure de l’abrégé : Figure 2The invention relates to a tire (1) having a crown (4) optimized for an advantageous performance compromise in road behavior and rolling resistance. Said crown (4) comprises a crown reinforcement (20), a sub-layer (7), and a tread (6). The sub-layer (7) comprises a first base layer (71), radially outside the crown reinforcement (20), and a second cover layer (72), radially outside the base layer (71) and radially inside the tread (6). The base layer has a dynamic elastic shear modulus G1* of less than 1.5 MPa, and as for the cover layer, its elastic shear modulus is greater than 5 MPa. The thickness E72 (mm) is greater than or equal to (0.53*ESC + 0.1) and is less than or equal to (0.60*Esc + 1.1) when ESC is between [1; 3.5] mm. Abstract Figure: Figure 2

FR2309707A 2023-09-14 2023-09-14 Tire optimized for road behavior and rolling resistance Active FR3153025B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2309707A FR3153025B1 (en) 2023-09-14 2023-09-14 Tire optimized for road behavior and rolling resistance
PCT/EP2024/074416 WO2025056348A1 (en) 2023-09-14 2024-09-02 Tyre optimised for driving performance and rolling resistance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2309707A FR3153025B1 (en) 2023-09-14 2023-09-14 Tire optimized for road behavior and rolling resistance
FR2309707 2023-09-14

Publications (2)

Publication Number Publication Date
FR3153025A1 FR3153025A1 (en) 2025-03-21
FR3153025B1 true FR3153025B1 (en) 2025-08-15

Family

ID=88965391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2309707A Active FR3153025B1 (en) 2023-09-14 2023-09-14 Tire optimized for road behavior and rolling resistance

Country Status (2)

Country Link
FR (1) FR3153025B1 (en)
WO (1) WO2025056348A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6959743B2 (en) * 2002-09-13 2005-11-01 The Goodyear Tire & Rubber Company Tire with silica-rich tread cap layer and carbon black-rich supporting transition zone of intermediate and base layers
FR2954333B1 (en) 2009-12-23 2012-03-02 Michelin Soc Tech PNEUMATIC HAVING THE TOP ZONE PROVIDED WITH A SUB-LAYER COMPRISING A THERMOPLASTIC ELASTOMER
US9352615B2 (en) 2013-10-22 2016-05-31 The Goodyear Tire & Rubber Company Pneumatic tire with multi-tread cap
JP6556123B2 (en) 2014-05-08 2019-08-07 株式会社ブリヂストン tire
EP3235662B1 (en) * 2016-02-17 2020-04-08 Nexen Tire Corporation Tire tread and pneumatic tire
EP3743293B1 (en) 2018-01-25 2022-12-14 Compagnie Generale Des Etablissements Michelin Tyre with a tread sub-layer containing multiple materials
FR3111845B1 (en) * 2020-06-26 2022-06-03 Michelin & Cie Tire with a tread optimized for wet grip when worn

Also Published As

Publication number Publication date
WO2025056348A1 (en) 2025-03-20
FR3153025A1 (en) 2025-03-21

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