Tire information detecting device

• US 20050023896A1
• Filed: 07/30/2004
• Published: 02/03/2005
• Est. Priority Date: 07/31/2003
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Kato, Manabu, Shirai, Katsuyoshi, Fujioka, Eiji
• Granted Patent: US 7,316,159 B2
• Time in Patent Office: Days
• US Class Current: 303/159
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0444 Antenna structures, control or arrangements thereof, e.g. for directional antennas, diversity antenna, antenna multiplexing or antennas integrated in fenders
• CPC Class Codes: B60T 2240/03 Tire sensors

Abstract

A tire information detecting device includes detecting means for detecting a state quantity in a tire, transmitting means for transmitting a signal outputted from the detecting means, receiving means for receiving the signal transmitted from the transmitting means, the receiving means mounted at a vehicle body side, and a brake actuator adjusted to apply a braking force to the vehicle. The receiving means is positioned at a radially inner side from a major diameter of the brake actuator.

Claims

1. A tire information detecting device comprising:

detecting means for detecting a state quantity in a tire;

transmitting means for transmitting a signal outputted from the detecting means;

receiving means for receiving the signal transmitted from the transmitting means, the receiving means mounted at a vehicle body side; and

a brake actuator adjusted to apply a braking force to the vehicle,

wherein the receiving means is positioned at a radially inner side from a major diameter of the brake actuator.

2. A tire information detecting device according to claim 1, wherein the receiving means is mounted at a linking member supporting a hub.

3. A tire information detecting device according to claim 1, wherein the transmitting means is mounted at a disc wheel supporting the tire.

4. A tire information detecting device according to claim 1, wherein the receiving means is provided with vehicle wheel speed detecting means for detecting a vehicle wheel speed.

5. A tire information detecting device according to claim 1, wherein the brake actuator includes a brake disc, and the receiving means is mounted at a radially inner side from a major diameter of the brake disc.

6. A tire information detecting device according to claim 1, wherein the brake actuator includes a drum brake, and the receiving means is mounted at a radially inner side from a major diameter of the drum brake.

7. A tire information detecting device according to claim 1, wherein the detecting means, the transmitting means and the receiving means are mounted at a driven wheel.

8. A tire information detecting device according to claim 7, wherein the receiving means is disposed at an area substantially corresponding to a radial directional length of the hub.

9. A tire information detecting device according to claim 1, wherein the detecting means is a detecting unit for detecting an air pressure and an air temperature as the state quantity in the tire, the detecting unit is included in the transmitting means.

10. A tire information detecting device according to claim 9, wherein the detecting unit detects a vehicle wheel acceleration and a value of voltage supplied to the detecting unit as the state quantity in the tire.

11. A tire information detecting device according to claim 10, wherein the transmitting means includes signal modulating means for modulating the signal, and the receiving means includes signal demodulating means for demodulating the signal.

12. A tire information detecting device according to claim 4, wherein the vehicle wheel speed detecting means is integrally formed with the receiving means.

13. A tire information detecting device according to claim 1, wherein the receiving means is mounted on a linking member at the vehicle body side.