Two axis antenna for TPMS sensor
First Claim
1. A vehicle entry/tire pressure monitoring system for a vehicle, the system comprising:
- an electronic control unit (“
ECU”
);
low frequency (“
LF”
) antennas mounted on the vehicle and being in communication with the ECU, each LF antenna being configured to transmit an LF tire sensor wake up field and a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle; and
tire sensors mounted in, on or adjacent respective tires of the vehicle, each tire sensor being configured to take air pressure measurements for the respective tire including a two-axis receiver antenna and an RF transmitter configured to transmit a radio frequency (“
RF”
) signal, wherein the two-axis antenna is configured such that a first axis of the two-axis antenna is configured to detect a respective LF field transmitted by one of the LF antennas and a second axis of the two-axis antenna is configured to detect a respective LF field transmitted by another of the LF antennas,wherein the LF antennas include a first LF antenna mounted nearer a longitudinal centerline of the vehicle as compared to an outboard side of the vehicle and a second LF antenna mounted nearer the outboard side of the vehicle as compared to the longitudinal centerline of the vehicle, andwherein the first axis is arranged generally transverse to the longitudinal centerline of the vehicle, and the second axis is arranged generally parallel with the longitudinal centerline of the vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle entry/tire pressure monitoring system for a vehicle includes an ECU, LF antennas mounted on the vehicle and being in communication with the ECU, and tire sensors mounted in, on or adjacent respective tires of the vehicle. Each LF antenna is configured to transmit an LF tire sensor wake up field and a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle tire sensor. Each tire sensor includes a two-axis receiver antenna and an RF transmitter configured to transmit an RF signal. Each two-axis receiver antenna is configured such that a first axis of the two-axis antenna is configured to detect a respective LF field transmitted by one of the LF antennas and a second axis of the two-axis antenna is configured to detect a respective LF field transmitted by another of the LF antennas.
71 Citations
6 Claims
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1. A vehicle entry/tire pressure monitoring system for a vehicle, the system comprising:
-
an electronic control unit (“
ECU”
);low frequency (“
LF”
) antennas mounted on the vehicle and being in communication with the ECU, each LF antenna being configured to transmit an LF tire sensor wake up field and a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle; andtire sensors mounted in, on or adjacent respective tires of the vehicle, each tire sensor being configured to take air pressure measurements for the respective tire including a two-axis receiver antenna and an RF transmitter configured to transmit a radio frequency (“
RF”
) signal, wherein the two-axis antenna is configured such that a first axis of the two-axis antenna is configured to detect a respective LF field transmitted by one of the LF antennas and a second axis of the two-axis antenna is configured to detect a respective LF field transmitted by another of the LF antennas,wherein the LF antennas include a first LF antenna mounted nearer a longitudinal centerline of the vehicle as compared to an outboard side of the vehicle and a second LF antenna mounted nearer the outboard side of the vehicle as compared to the longitudinal centerline of the vehicle, and wherein the first axis is arranged generally transverse to the longitudinal centerline of the vehicle, and the second axis is arranged generally parallel with the longitudinal centerline of the vehicle. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle entry/tire pressure monitoring system for a vehicle, the system comprising:
-
an electronic control unit (“
ECU”
);low frequency (“
LF”
) antennas mounted on the vehicle and being in communication with the ECU, each LF antenna being configured to transmit an LF tire sensor wake up field and a SMART entry LF search field to wake up a portable transmission/reception unit for keyless entry of the vehicle; andtire sensors mounted in, on or adjacent respective tires of the vehicle, each tire sensor being configured to take air pressure measurements for the respective tire including a two-axis receiver antenna and an RF transmitter configured to transmit a radio frequency (“
RF”
) signal, wherein the two-axis antenna is configured such that a first axis of the two-axis antenna is configured to detect a respective LF field transmitted by one of the LF antennas and a second axis of the two-axis antenna is configured to detect a respective LF field transmitted by another of the LF antennas,wherein the LF antennas includes a front LF antenna mounted towards a front of the vehicle, a rear LF antenna mounted towards a rear of the vehicle, a left side LF antenna mounted adjacent, in or on a left door of the vehicle, and a right side LF antenna mounted adjacent, in or on a right door of the vehicle, wherein the first axis is arranged generally transverse to a longitudinal axis of the vehicle, and the second axis is arranged generally parallel with a longitudinal axis of the vehicle.
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Specification