An electronic component in a vehicle tire condition monitor system includes a first antenna, a second antenna, and a processor. The first antenna is oriented at an angle with respect to the second antenna. Both of the antennas are capable of receiving RF signals transmitted from a sensor associated
An electronic component in a vehicle tire condition monitor system includes a first antenna, a second antenna, and a processor. The first antenna is oriented at an angle with respect to the second antenna. Both of the antennas are capable of receiving RF signals transmitted from a sensor associated with a respective tire of the vehicle. The RF signals represent a condition of the respective tire. The processor receives the RF signals transmitted by the sensor from at least one of the antennas. The first and second antennas receive the condition signals from any of a plurality of the sensors associated with respective tires on the vehicle.
대표청구항▼
1. An electronic component in a vehicle tire condition monitor system, the electronic component comprising: a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna, both of the antennas being capable of receivin
1. An electronic component in a vehicle tire condition monitor system, the electronic component comprising: a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna, both of the antennas being capable of receiving RF signals transmitted from a plurality of sensors associated and rotating with respective tires of the vehicle, the RF signals from each of the sensors representing a condition of the respective associated tire, and the angle of orientation of the first antenna with respect to the second antenna enabling at least one of the antennas to receive the RF signals from each of the sensors independent of a rotational position of the sensor; anda processor receiving the RF signals from at least one of the antennas. 2. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the processor converts the RF signals from only one of the antennas to a message; andthe processor transmits the message to an electronic control unit via a vehicle communication bus. 3. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the processor switches between the first antenna and the second antenna while the RF signals are transmitted from the sensor; andthe processor switches to and selects the one of the first antenna and the second antenna having a greater signal strength detected by the processor while the RF signals are transmitted from the sensor. 4. The electronic component in a vehicle tire condition monitor system as set forth in claim 3, wherein: the sensor transmits 10 data packets at about a sensor data rate of about 3 kbaud; andthe processor maintains the selection of the antenna until the completion of 1 of the data packets. 5. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the angle is about 90°. 6. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the first antenna and the second antenna are included in an antenna package. 7. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: a sampling rate of the switching between the first and second antennas by the processor is greater than a sensor data rate at which the sensors transmit the RF signals. 8. The electronic component in a vehicle tire condition monitor system as set forth in claim 7, wherein: the sampling rate of the switching between the first and second antennas by the processor is about double the sensor data rate. 9. The electronic component in a vehicle tire condition monitor system as set forth in claim 7, wherein: the rate at which the sensors transmit the RF signals is between about every 1 minute and about every 15 minutes. 10. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the first antenna is only indirectly electrically connected to the second antenna via the processor. 11. The electronic component in a vehicle tire condition monitor system as set forth in claim 1, wherein: the processor determines which one of the antennas provides a signal having higher power. 12. The electronic component in a vehicle tire condition monitor system as set forth in claim 11, wherein: the processor compares the RF signals from the first and second antennas to determine the one of the antennas that provides the more desirable signal. 13. The electronic component in a vehicle tire condition monitor system as set forth in claim 11, wherein: the processor converts the RF signals from the one of the antennas that provides the more desirable signal to the message. 14. A system for monitoring a condition in vehicle tires, the system comprising: a vehicle communication bus;an electronic control unit communicating with the vehicle communication bus;a plurality of tires on the vehicle;a plurality of sensors associated and rotating with the respective tires, the sensors transmitting respective RF signals based on respective conditions of the respective tires; andan electronic component communicating with the vehicle communication bus, the electronic component including:a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna, both of the antennas being capable of receiving RF signals transmitted from the sensors, and the angle of orientation of the first antenna with respect to the second antenna enabling at least one of the antennas to receive the RF signals from each of the sensors independent of a rotational position of the sensor; anda processor receiving the RF signals from at least one of the antennas and identifying the sensor that generated the RF signals. 15. The system monitoring a condition in vehicle tires as set forth in claim 14, wherein: the processor converts the RF signals for the identified sensor from only one of the antennas to a message; andthe processor transmits the message to an electronic control unit Via the vehicle communication bus. 16. The system for monitoring a condition in vehicle tires as set forth in claim 14, wherein: the angle is about 90°. 17. The system for monitoring a condition in vehicle tires as set forth in claim 16, wherein: the first antenna of the diversity antenna is only indirectly electrically connected to the second antenna via the processor. 18. The system for monitoring a condition in vehicle tires as set forth in claim 14, wherein: the processor determines which one of the antennas provides signal having a higher power; andthe processor converts the RF signals from the one of the antennas that provides the signal having the higher power. 19. The system for monitoring a condition in vehicle tires as set forth in claim 14, wherein: if the processor receives the RF signals transmitted by the sensor from only one of the antennas, the processor converts the RF signals from the one of the antennas. 20. A method tier monitoring, a condition in vehicle tires, the method comprising: transmitting an RF signal from a sensor associated with one of the tires on the vehicle, the RF signal indicating a condition of the tire;alternately receiving the RF signal by a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna enabling at least one of the antennas to receive the RF signals from the sensor independent of a rotational position of the sensor;identifying which of the first antenna and the second antenna is passing a stronger of the RF signals to a processor; andswitching the processor to the one of the first and second antennas passing the Stronger RF signal. 21. The method for monitoring a condition in vehicle tires as set forth in claim 20, further including: converting the stronger RF signal from the identified one of the first and second antennas to a message; andpassing the message to a vehicle communication bus. 22. The method for monitoring a condition in vehicle tires as set forth in claim 20, further including: switching the processor to receive the more desirable signal. 23. The method for monitoring a condition in vehicle tires as set forth in claim 20, wherein: the step of transmitting the RF signal from the sensor occurs at a slower rate than the step of alternately receiving the RF signal by the first and second antennas. 24. The method for monitoring a condition in vehicle tires as set forth in claim 23, wherein: the step of transmitting the RF signal from the sensor occurs at about 3 kbaud. 25. The method for monitoring a condition in vehicle tires as set forth in claim 20, wherein if only one of the first and second antennas receives the RF signal, the identifying step includes: identifying the one of the first antenna and the second antenna that received the stronger RF signal. 26. An electronic component in a vehicle tire condition monitor system, the electronic component comprising: a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna, both of the antennas being capable of receiving RF signals transmitted from a plurality of sensors associated and rotating with respective tires of the vehicle, the RF signals representing respective conditions of the tire, and the angle of orientation of the first antenna with respect to the second antenna enabling at least one of the antennas to receive the RF signals from each of the sensors independent of a rotational position of the sensor;a processor; andmeans for identifying which one of the first antenna and the second antenna is passing the RF signal more desirably to the processor. 27. The electronic component in a vehicle tire condition monitor system as set forth in claim 26, wherein: the processor converts the RF signals from the one of the antennas to a message; andthe processor transmits the message to an electronic control unit via a vehicle communication bus. 28. The electronic component in a vehicle tire condition monitor system as set forth in claim 26, wherein: the means for identifying includes circuitry in the processor. 29. The electronic component in a vehicle tire condition monitor system as set forth in claim 28, wherein: the means for identifying compares the respective RF signals received by the first and second antennas; andbased on the comparison, the means for identifying selects the one of the antennas. 30. The electronic component in a vehicle tire condition monitor system as set forth in claim 26, wherein: the angle is about 90°. 31. An electronic component in a vehicle tire condition monitor system, the electronic component comprising: a first antenna and a second antenna, the first antenna oriented at an angle between about 45° and about 135° with respect to the second antenna, both of the antennas being capable of receiving RF signals transmitted from a sensor associated and rotating with a respective tire of the vehicle, the RF signals representing a condition of the respective tire, and the angle of orientation of the first antenna with respect to the second antenna enabling at least one of the antennas to receive the RF signals from the sensor independent of a rotational position of the sensor; anda processor, receiving the RF signals transmitted by the sensor from at least one of the antennas, for identifying one of the antennas as delivering a stronger signal, the first and second antennas receiving the condition signals from any of a plurality of the sensors associated with respective tires on the vehicle. 32. The electronic component in a vehicle tire condition monitor system as set forth in claim 31, wherein: the processor converts the RF signals from the identified antenna to a message; andthe processor transmits the message to an electronic control unit via a vehicle communication bus. 33. The electronic component in a vehicle tire condition monitor system as set forth in claim 31, wherein: the angle about 90°. 34. The electronic component in a vehicle tire condition monitor system as set forth in claim 31, wherein: the first antenna is only indirectly electrically connected to the second antenna via the processor. 35. The electronic component in a vehicle tire condition monitor system as set forth in claim 31, wherein: the first and second antennas are first and second sub-antennas, respectively, included in an antenna package. 36. The electronic component in a vehicle tire condition monitor system as set forth in claim 31, wherein: if the processor receives the RF signals transmitted from only one of the antennas, the processor identities the one of the antennas as providing the stronger signal.
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이 특허에 인용된 특허 (31)
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Yegin, Korkut; Bally, Nazar F.; Snoeyink, Randall J.; Livengood, William R.; Gleeson, Jon P.; Robson, Randall J., Tire pressure monitor with diversity antenna system and method.
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