Vehicle tires with steel belt cords and with a dipole antenna arranged in the area of the tread

• US 20060278320A1
• Filed: 08/24/2006
• Published: 12/14/2006
• Est. Priority Date: 02/24/2004
• Status: Abandoned Application

• Current Assignee: BMW AG (Bayerische Motoren Werke AG)
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Laske, Lothar, Ellmann, Manfred
• Application Number:
  US11/508,918
• Publication Number:
  US 20060278320A1
• Time in Patent Office: Days
• US Class Current: 152/534
• CPC Class Codes: B60C 11/00 Tyre tread bands; Tread patterns; Anti-skid inserts
• CPC Class Codes: B60C 19/00 Tyre parts or constructions not otherwise provided for
• CPC Class Codes: B60C 23/041 Means for supplying power to the signal- transmitting means on the wheel
• CPC Class Codes: B60C 23/0452 Antenna structure, control or arrangement vehicle tyre mounted antennas H01Q1/2241
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: B60C 9/2006 consisting of steel cord plies only
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres
• CPC Class Codes: Y10T 152/10792 Structure where each bias angle reinforcing cord ply has no opposingly angled ply

Abstract

A vehicle tire having steel belt cords is provided with a dipole antenna arranged in the area of the tire tread for data transmission, in particular for a transponder for transmitting energy and measured quantities. The dipole antenna cooperates with a sending and receiving antenna arranged on the vehicle. The dipole antenna is arranged essentially across the steel belt cords. If the belt angles of the two intersecting plies of steel belt cords with respect to the longitudinal axis of the tire profile are not the same, then the dipole antenna with its longitudinal axis is aligned essentially perpendicular to the axis of symmetry between the two intersecting plies of steel belt cords. The dipole antenna preferably has an effective dipole length of 6 cm when using a transmission frequency of 2.45 GHz. The vehicle'"'"'s sending and receiving antenna is preferably aligned so that is has essentially the same polarization plane as the dipole antenna.

Claims

1. A vehicle tire, comprising:

at least two steel belt cords arranged in a tread area of the tire, wherein a belt angle relative to a longitudinal axis of the tire of each of two intersecting steel belt cords are not equal; and

a dipole antenna for data transmission arranged in the tread area of the tire and configured to communicate with a sending and receiving antenna arranged on a vehicle,

wherein the dipole antenna is arranged across the steel belt cords essentially aligned with a longitudinal axis through the antenna disposed essentially perpendicular to an axis of symmetry between the two intersecting steel belt cords.

2. The vehicle tire as claimed in claim 1, wherein the dipole antenna has an effective dipole length of approximately 5 cm to 7 cm.

3. The vehicle tire as claimed in claim 2, wherein the dipole antenna has an effective dipole length of approximately 6 cm.

4. An automobile, comprising:

a vehicle body;

sending and receiving antenna arranged on a vehicle; and

at least one vehicle tire which includes

at least two steel belt cords arranged in a tread area of the tire, wherein a belt angle relative to a longitudinal axis of the tire of each of two intersecting steel belt cords are not equal; and

a dipole antenna for data transmission arranged in the tread area of the tire and configured to communicate with the sending and receiving antenna,

wherein the dipole antenna is arranged across the steel belt cords essentially aligned with a longitudinal axis through the antenna disposed essentially perpendicular to an axis of symmetry between the two intersecting steel belt cords,

wherein the sending and transmitting antenna is oriented so that it has essentially the same polarization plane as the dipole antenna.

5. The automobile as claimed in claim 4, wherein the dipole antenna has an effective dipole length of approximately 5 cm to 7 cm.

6. The automobile as claimed in claim 5, wherein the dipole antenna has an effective dipole length of approximately 6 cm.