TIRE PRESSURE INFLATION SYSTEM
A tire pressure inflation system includes an inflation device having a communication portion and an inflation portion. The communication portion is configured to receive tire pressure signals wirelessly transmitted from a tire pressure sensor disposed within a vehicle tire cavity. The inflation portion is configured to change pressure within the pressurized vehicle tire cavity in response to signals from the tire pressure sensor.
1 . A tire pressure inflation system comprising:
an inflation device having a communication portion configured to receive tire pressure signals wirelessly transmitted from a tire pressure sensor disposed within a vehicle tire cavity, and an inflation portion configured to change pressure within the pressurized vehicle tire cavity in response to signals from the tire pressure sensor.
2 . The tire pressure inflation system according to claim 1 , further comprising: the communication portion of the inflation device is configured to receive low frequency wireless signals.
3 . The tire pressure inflation system according to claim 1 , wherein
the communication portion of the inflation device includes a wireless signal transmitting section configured to transmit a request signal to the tire pressure sensor requesting tire pressure signals from the tire pressure sensor.
4 . The tire pressure inflation system according to claim 3 , wherein
the communication portion of the inflation device is configured to send and receive high frequency transmissions.
5 . The tire pressure inflation system according to claim 1 , wherein
the communication portion of the inflation device is configured to send and receive high frequency transmissions.
6 . The tire pressure inflation system according to claim 1 , wherein
the communication portion of the inflation device is configured to send and receive both low frequency transmissions and high frequency transmissions.
7 . The tire pressure inflation system according to claim 6 , wherein
the communication portion of the inflation device is configured to send and receive low frequency transmissions at 125 kHz and high frequency transmissions at one of 315 MHz, 433-434 MHz, 448 MHz, 868 MHz, and 915 MHz.
8 . The tire pressure inflation system according to claim 1 , wherein
the inflation device is installed within a vehicle that includes at least one tire equipped with a tire pressure sensor such that the inflation device is in wireless communication with the tire pressure sensor.
9 . The tire pressure inflation system according to claim 1 , wherein
the inflation device is a portable unit having a power cord configured for receiving electrical power from a vehicle.
10 . The tire pressure inflation system according to claim 1 , wherein
the inflation device is a portable unit having a power cord that receives standard alternating current.
11 . The tire pressure inflation system according to claim 1 , wherein
the inflation device is a stationary unit having a power cord that receives standard alternating current.
12 . The tire pressure inflation system according to claim 1 , wherein
the inflation portion includes an air compressor and a manually operated air nozzle configured to couple to a tire valve for fluid communication with the vehicle tire cavity.
13 . The tire pressure inflation system according to claim 1 , wherein
the inflation device further comprises a microprocessor, memory and a tire sensor diagnostic section configured 10 diagnose operation of a tire pressure sensor.
14 . The tire pressure inflation system according to claim 1 , further comprising:
a tire pressure sensor disposed within a vehicle tire cavity.
15 . The tire pressure inflation system according to claim 14 , wherein
the tire pressure sensor includes a wireless transmitter and an automated circuit configured to transmit tire pressure signals at predetermined intervals via the wireless transmitter.
16 . The tire pressure inflation system according to claim 15 , wherein
the transmitter is a low frequency transmitter.
17 . The tire pressure inflation system according to claim 14 , wherein
the tire pressure sensor includes a transmitter and an automated circuit configured to transmit tire pressure signals in response to changes in tire pressure within the vehicle tire cavity via the wireless transmitter.
18 . The tire pressure inflation system according to claim 17 , wherein
the transmitter is a high frequency transmitter.
19 . The tire pressure inflation system according to claim 14 , wherein
the tire pressure sensor includes a transmitter configured to transmit tire pressure-signals, a receiver configured to receive signals from the communication portion of the inflation device and a circuit configured to transmit tire pressure signals via the wireless transmitter in response to receiving signals from the communication portion of the inflation device.
20 . The tire pressure inflation system according to claim 19 , wherein
the transmitter of the tire pressure sensor is a high frequency transmitter.