System for wireless data communication between a vehicle and its tire
AssigneeMichelin Recherche et Technique S.A.
InventorDavid Myatt
Life of this patent
Estimating the term…
Abstract
A system for wireless data communication between a vehicle and at least one of its tires (10), the system comprising a fixed antenna mounted on the vehicle and an antenna integral with the tire (10), the latter antenna being located in proximity with the tire's (10) belt. The characteristics of the tire belt are chosen in order to achieve an increased transmission distance.
Claims16
A system for data communication between a vehicle and at least one of its tires, the tire comprising a belt comprising at least two breaker plies separated by a layer of rubber composition, the system comprising:
- a fixed antenna mounted on the vehicle;
- and
- an antenna integral with the tire, the latter antenna being located in proximity with the belt,
- wherein at least one of the breaker plies comprises non metallic cords.
A system for data communication between a vehicle and at least one of its tires, the tire comprising a belt comprising at least two breaker plies separated by a layer of rubber composition, the system comprising:
- a fixed antenna mounted on the vehicle;
- and
- an antenna integral with the tire, the latter antenna being located in proximity with the belt,
- wherein the distance between adjacent breaker plies made up of metallic cords is greater than or equal to twice the diameter of the cords.
A system for data communication between a vehicle and at least one of its tires, the tire comprising a belt comprising at least two breaker plies separated by a layer of rubber composition, the system comprising:
- a fixed antenna mounted on the vehicle;
- and
- an antenna integral with the tire, the latter antenna being located in proximity with the belt,
- wherein the resistance between any cord of a breaker ply and any cord of an adjacent breaker ply is greater than 20 kΩ.
A system for data communication between a vehicle and at least one of its tires, the tire comprising a belt comprising at least two breaker plies (50,60) separated by a layer of rubber composition, the system comprising:
- a fixed antenna mounted on the vehicle;
- and
- an antenna integral with the tire, the latter antenna being located in proximity with the belt,
- wherein the capacity between any cord of a breaker ply and any cord of an adjacent breaker ply is less than 1 nF.
A system for data communication between a vehicle and at least one of its tires, the tire comprising a belt comprising at least two breaker plies separated by a layer of rubber composition, the system comprising:
- a fixed antenna mounted on the vehicle;
- and
- an antenna integral with the tire, the latter antenna being located in proximity with the belt,
- wherein the frequency resistivity of the cords of the breaker plies is greater than 32 Ω/m at a frequency of 13.56 MHz.
Dependencies are inferred from the claim text.