Schrader-bridgeport International, Inc.

Thomas David Stephen McClelland

David Samuel Porter

Alastair Thomas Johnston

William David Stewart

Idir Boudaoud

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.

Determination of wheel sensor position using a single radio frequency detector in an automotive remote tire monitor system

A tire characteristic monitoring method allows automatic programming of tire position information in a remote tire pressure monitoring system (). The method includes, from a remotely located exciter () using a primary coil () to transmit a relatively low frequency signal to a secondary coil (L) of a tire monitor () associated with a tire of a vehicle. The method further includes the step of, at the tire monitor, in response to the relatively low frequency signal, transmitting a relatively high transmitting signal to convey data. The data are received at the exciter and subsequently loaded into a receiving unit () of the vehicle.

Method and apparatus for a remote tire pressure monitoring system

A tire monitor system and method rely on only two RF detector mounted on the vehicle, one in close proximity to one of the front wheels and the other in close proximity to one of the rear wheels. An RF detector can distinguish between its local transmitter and the other transmitter on the same axle by the amount of signal received. Every time the controller decodes transmitted RF data, the controller looks to see if and which RF detector has detected the transmission. The controller can then determine over a short period of time which sensor identifier belongs to which corner of the vehicle.

Determination of wheel sensor position using radio frequency detectors in an automotive remote tire monitor system

A tire characteristic monitoring method allows automatic programming of tire position information in a remote tire pressure monitoring system ( ). The method includes, from a remotely located exciter ( ) using a primary coil ( ) to transmit a relatively low frequency signal to a secondary coil (L ) of a tire monitor ( ) associated with a tire of a vehicle. The method further includes the step of, at the tire monitor, in response to the relatively low frequency signal, transmitting a relatively high transmitting signal to convey data. The data are received at the exciter and subsequently loaded into a receiving unit ( ) of the vehicle.

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Craigavon, Ireland

Thomas David Stephen McClelland