Determination of wheel sensor position using a single radio frequency detector in an automotive remote tire monitor system
First Claim
1. A remote tire monitor system, comprising:
- a plurality of tire monitors associated with wheels of a vehicle and operable to transmit tire information;
a single radio frequency (RF) detector operable to detect a RF transmission from two or more tire monitors and produce a detected transmission indication;
a receiver operable to receive the tire information; and
a control unit coupled with the RF detector and the receiver, the control unit operable to determine positions of the plurality of tire monitors based on the detected transmission indication and the received tire information.
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Accused Products
Abstract
A tire monitor system employs a single RF detector mounted on the vehicle. The tire monitor system also includes a control unit and a receiver. The single RF detector is positioned to be proximate a front axle or a rear axle. The RF detector also may be positioned off-center. The control unit distinguishes front tire monitors from rear tire monitors by comparing a number of RF transmissions received by each tire monitor. The control unit also may distinguish between left tire monitors and right tire monitors by comparing the number of RF transmissions received by each tire monitor. In other embodiment, the tire monitor system may further use a received signal strength and/or acceleration signals to determine position information of the tire monitors.
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Citations
29 Claims
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1. A remote tire monitor system, comprising:
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a plurality of tire monitors associated with wheels of a vehicle and operable to transmit tire information;
a single radio frequency (RF) detector operable to detect a RF transmission from two or more tire monitors and produce a detected transmission indication;
a receiver operable to receive the tire information; and
a control unit coupled with the RF detector and the receiver, the control unit operable to determine positions of the plurality of tire monitors based on the detected transmission indication and the received tire information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A remote tire monitor system for use with a vehicle having a front side, a rear side, a left side and a right side, comprising:
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a plurality of tire monitors associated with each side of the vehicle and operable to transmit tire information;
a single radio frequency (RF) detector positioned proximate one side of the vehicle and generate a transmission indication in response to radio frequency (RF) transmissions from at least one of the plurality of tire monitors;
a receiver operable to receive the tire information; and
a control unit coupled with the RF detector and the receiver, the control unit operable to determine positions of the plurality of tire monitors based on the transmission indication and the tire information. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A tire monitor method for use with a vehicle having a front side, a rear side, a left side and a right side, the method comprising:
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positioning a single radio frequency (RF) detector proximate one side of the vehicle;
at the single RF detector, detecting RF transmissions from at least one of a plurality of tire monitors associated with each side of the vehicle;
at a receiver, receiving tire data from the plurality of tire monitors; and
at a control unit, determining positions of the plurality of tire monitors based on the detected RF transmissions and the tire data. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification