Tire mounting position detection system, tire mounting position detection method, and tire mounting position detection program
AssigneeBridgestone Corporation
InventorKyohei Honda
Life of this patent
Estimating the term…
Abstract
A tire mounting position detection system measures a first signal strength which is the strength of a radio signal received by a first receiver (R1) for each transmitter, measures a second signal strength which is the strength of the radio signal received by a second receiver (R2) for each transmitter, and calculates an strength ratio which is a ratio using the first signal strength and the second signal strength for each transmitter. The tire mounting position detection system detects a wheel position where a tire equipped with a transmitter is mounted on the basis of the first signal strength, the second signal strength and a strength ratio for each transmitter.
Claims13
A tire mounting position detection system for detecting at which wheel position of a vehicle each tire equipped with a transmitter is mounted, including a receiving unit disposed in the vehicle and for receiving a radio signal transmitted from the transmitter;
- wherein:
- the receiving unit includes:
- a first receiver;
- and
- a second receiver disposed at a position different from the first receiver in the vehicle longitudinal direction and the vehicle width direction;
- and the tire mounting position detection system comprising:
- a first measurement unit for measuring a first signal strength, which is strength of the radio signal received by the first receiver, for each transmitter;
- a second measurement unit for measuring a second signal strength, which is strength of the radio signal received by the second receiver, for each transmitter;
- a calculation unit for calculating an strength ratio, which is a ratio using the first signal strength and the second signal strength, for each transmitter;
- and
- a position detection unit for detecting a wheel position on which a tire equipped with the transmitter is mounted, based on the first signal strength, the second signal strength, and the strength ratio for each transmitter.
A tire mounting position detecting method for detecting at which wheel position of a vehicle each tire mounted with a transmitter is mounted, including a receiving unit is disposed in the vehicle and receives a radio signal transmitted from the transmitter;
- wherein
- the receiving unit includes a first receiver and a second receiver disposed at a position different from the first receiver in the vehicle longitudinal direction and the vehicle width direction, and the tire mounting position detecting method comprising the steps of:
- measuring a first signal strength, which is the strength of the radio signal received by the first receiver, for each transmitter;
- measuring a second signal strength, which is the strength of the radio signal received by the second receiver, for each transmitter;
- calculating an strength ratio, which is a ratio using the first signal strength and the second signal strength, for each transmitter;
- and
- detecting a position of a wheel on which a tire equipped with the transmitter is mounted, based on the first signal strength, the second signal strength, and the strength ratio for each transmitter.
A tire mounting position detection non-transitory program product for detecting at which wheel position of a vehicle each tire mounted with a transmitter is mounted, including a receiving unit is disposed in the vehicle and receives a radio signal transmitted from the transmitter;
- wherein the receiving unit includes a first receiver and a second receiver disposed at a position different from the first receiver in the vehicle longitudinal direction and the vehicle width direction;
- the tire mounting position detection program causing a computer to execute:
- a process of measuring a first signal strength, which is the strength of the radio signal received by the first receiver, for each transmitter;
- a process of measuring a second signal strength, which is the strength of the radio signal received by the second receiver, for each transmitter;
- a process of calculating an strength ratio, which is a ratio using the first signal strength and the second signal strength, for each transmitter;
- and a process of detecting a position of a wheel on which a tire equipped with the transmitter is mounted is mounted, based on the first signal strength, the second signal strength, and the strength ratio for each transmitter.
Dependencies are inferred from the claim text.